Term cmd library/caches/rm -rfv * removed most docs folders

Hi, I used advice on forum to clear cache, (posted by warwick teale} after loging back in most of my documents folders are deleted. Are they really gone or am I not finished the process. Not blaming him just posted the info for a reference to the procedure I followed.
Please help. Mtrader

Hi Drew
I have same issue and nearly used cmd posted by Warwick; fortunately I checked out other posts first. Would you look at the results I have from running Etrecheck? Understand if you can't. Many thanks in advance. Jayne
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acousticmirror
10 months ago (Show more)
I've got a 3.5 year old Mac Mini 2.3 GHz Core i5 with 4 GB of RAM running OS X 10.9.2. A couple months ago, at no specific moment in time, my mini started to slow down, it's continued to get slower…
in OS X Mavericks • Reply • I have this question too Show 8 Likes(8) • Stop following this discussion
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Robodobie (to Warwick Teale) 2 hours ago (Show less)
I have just picked this thread up - can you help? I have the same problem. My report from Etre check as follows: thank you Jayne
Problem description:
OSX Yosemite V 10.10.2
Macbook late 2008
2GHz intel core 2 duo
2 GB 1067 MHz DDR3
Mac HD
NVIDIA GeForce 940
running soooooo slow
EtreCheck version: 2.1.8 (121)
Report generated 4 March 2015 09:51:32 GMT
Download EtreCheck from http://etresoft.com/etrecheck
Click the [Click for support] links for help with non-Apple products.
Click the [Click for details] links for more information about that line.
Hardware Information: ℹ️
    MacBook (13-inch, Aluminum, Late 2008) (Technical Specifications)
    MacBook - model: MacBook5,1
    1 2 GHz Intel Core 2 Duo CPU: 2-core
    2 GB RAM Upgradeable
        BANK 0/DIMM0
            1 GB DDR3 1067 MHz ok
        BANK 0/DIMM1
            1 GB DDR3 1067 MHz ok
    Bluetooth: Old - Handoff/Airdrop2 not supported
    Wireless: en1: 802.11 a/b/g/n
    Battery Health: Normal - Cycle count 1042
Video Information: ℹ️
    NVIDIA GeForce 9400M - VRAM: 256 MB
        Color LCD 1280 x 800
System Software: ℹ️
    OS X 10.10.2 (14C109) - Time since boot: 15:30:16
Disk Information: ℹ️
    FUJITSU MHZ2160BH FFS G1 disk0 : (160.04 GB)
        EFI (disk0s1) <not mounted> : 210 MB
        [redacted] HD (disk0s2) / : 159.18 GB (68.81 GB free)
        Recovery HD (disk0s3) <not mounted> [Recovery]: 650 MB
    MATSHITADVD-R   UJ-868
USB Information: ℹ️
    Apple Inc. Built-in iSight
    TOSHIBA STOR.E PARTNER 1 TB
        EFI (disk1s1) <not mounted> : 210 MB
        Untitled 1 (disk1s2) /Volumes/Untitled 1 : 999.86 GB (761.91 GB free)
    Apple, Inc. Apple Internal Keyboard / Trackpad
    Apple Computer, Inc. IR Receiver
    Telink Wireless Receiver
    Apple Inc. BRCM2046 Hub
        Apple Inc. Bluetooth USB Host Controller
Gatekeeper: ℹ️
    Mac App Store and identified developers
Kernel Extensions: ℹ️
        /System/Library/Extensions
    [not loaded]    com.ZTE.driver.ZTEUSBCDCACMData (1.2.19) [Click for support]
    [not loaded]    com.ZTE.driver.ZTEUSBMassStorageFilter (1.2.19) [Click for support]
    [loaded]    com.eltima.SyncMate.kext (0.2.5b15) [Click for support]
Startup Items: ℹ️
    MobileBrServ: Path: /Library/StartupItems/MobileBrServ
    Startup items are obsolete in OS X Yosemite
Problem System Launch Agents: ℹ️
    [killed]    com.apple.accountsd.plist
    [killed]    com.apple.AirPlayUIAgent.plist
    [killed]    com.apple.bird.plist
    [killed]    com.apple.CallHistoryPluginHelper.plist
    [killed]    com.apple.CallHistorySyncHelper.plist
    [killed]    com.apple.cloudd.plist
    [killed]    com.apple.cmfsyncagent.plist
    [killed]    com.apple.coreservices.appleid.authentication.plist
    [killed]    com.apple.EscrowSecurityAlert.plist
    [killed]    com.apple.iconservices.iconservicesagent.plist
    [killed]    com.apple.nsurlsessiond.plist
    [killed]    com.apple.recentsd.plist
    [killed]    com.apple.sbd.plist
    [killed]    com.apple.scopedbookmarkagent.xpc.plist
    [killed]    com.apple.security.cloudkeychainproxy.plist
    [killed]    com.apple.spindump_agent.plist
    [killed]    com.apple.telephonyutilities.callservicesd.plist
    17 processes killed due to memory pressure
Problem System Launch Daemons: ℹ️
    [killed]    com.apple.awdd.plist
    [killed]    com.apple.cache_delete.plist
    [killed]    com.apple.coresymbolicationd.plist
    [killed]    com.apple.ctkd.plist
    [killed]    com.apple.diagnosticd.plist
    [killed]    com.apple.icloud.findmydeviced.plist
    [killed]    com.apple.iconservices.iconservicesagent.plist
    [killed]    com.apple.iconservices.iconservicesd.plist
    [killed]    com.apple.ifdreader.plist
    [killed]    com.apple.MobileFileIntegrity.plist
    [killed]    com.apple.nehelper.plist
    [killed]    com.apple.nsurlsessiond.plist
    [killed]    com.apple.periodic-daily.plist
    [killed]    com.apple.sandboxd.plist
    [killed]    com.apple.softwareupdate_download_service.plist
    [killed]    com.apple.softwareupdated.plist
    [killed]    com.apple.spindump.plist
    [killed]    com.apple.sysmond.plist
    [killed]    com.apple.tccd.system.plist
    [killed]    com.apple.wdhelper.plist
    20 processes killed due to memory pressure
Launch Agents: ℹ️
    [running]    com.epson.Epson_Low_Ink_Reminder.launcher.plist [Click for support]
    [loaded]    com.epson.esua.launcher.plist [Click for support]
    [running]    com.epson.eventmanager.agent.plist [Click for support]
    [running]    syncmateStarter.plist [Click for support]
Launch Daemons: ℹ️
    [loaded]    com.microsoft.office.licensing.helper.plist [Click for support]
    [running]    rapiback.plist [Click for support]
User Launch Agents: ℹ️
    [loaded]    .dat005a.000 (hidden) [Click for support]
        /usr/bin/osascript /usr/bin/osascript osascript -e tell application "Folder Actions Dispatcher" to tick
    [loaded]    com.adobe.ARM.[...].plist [Click for support]
    [failed]    com.google.GoogleContactSyncAgent.plist [Click for support]
    [loaded]    com.google.keystone.agent.plist [Click for support]
    [running]    com.wondershare.mobilegodaemon.plist [Click for support]
User Login Items: ℹ️
    iSyncr    Application (/Applications/iSyncr.app)
    Software Update    Application (/System/Library/CoreServices/Software Update.app)
    AutoLaunchApp    Application (/Applications/3Connect/3Connect.app/Contents/Resources/AutoLaunchApp.app)
    EvernoteHelper    UNKNOWN (missing value)
    Amazon Cloud Drive    UNKNOWN (missing value)
    Adobe Reader    Application (/Applications/Adobe Reader.app)
    ScanSnap Manager    Application (/Applications/ScanSnap/ScanSnap Manager.app)
    Dropbox    Application (/Applications/Dropbox.app)
    SoundTouch music server    Application (/Applications/SoundTouch/SoundTouch.app/Contents/MacOS/SoundTouchMusicServer/S oundTouch music server.app)
    HP Scheduler    Application Hidden (/Library/Application Support/Hewlett-Packard/Software Update/HP Scheduler.app)
    Director Docker    Application (/Applications/Hewlett-Packard/HP Photo and Imaging Software/HP Photo and Imaging Director/Director Docker.app)
Internet Plug-ins: ℹ️
    Flip4Mac WMV Plugin: Version: 2.3.5.4 [Click for support]
    JavaAppletPlugin: Version: 15.0.0 - SDK 10.10 Check version
    Default Browser: Version: 600 - SDK 10.10
    AdobePDFViewerNPAPI: Version: 11.0.10 - SDK 10.6 [Click for support]
    AdobePDFViewer: Version: 11.0.10 - SDK 10.6 [Click for support]
    QuickTime Plugin: Version: 7.7.3
    SharePointBrowserPlugin: Version: 14.4.8 - SDK 10.6 [Click for support]
    Google Earth Web Plug-in: Version: 7.1 [Click for support]
    Silverlight: Version: 4.0.50826.0 [Click for support]
    iPhotoPhotocast: Version: 7.0
User internet Plug-ins: ℹ️
    Picasa: Version: 1.0 [Click for support]
Safari Extensions: ℹ️
    Evernote Web Clipper
    Cashback Notifier - TopCashback
3rd Party Preference Panes: ℹ️
    Flip4Mac WMV [Click for support]
    FUSE for OS X (OSXFUSE) [Click for support]
Time Machine: ℹ️
    Skip System Files: NO
    Auto backup: YES
    Volumes being backed up:
        Macintosh HD: Disk size: 159.18 GB Disk used: 90.37 GB
    Destinations:
        Untitled 1 [Local]
        Total size: 999.86 GB
        Total number of backups: 12
        Oldest backup: 2013-01-12 18:32:54 +0000
        Last backup: 2015-02-21 08:22:55 +0000
        Size of backup disk: Excellent
            Backup size 999.86 GB > (Disk size 159.18 GB X 3)
Top Processes by CPU: ℹ️
        15%    backupd

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refer
Memory Notification: Library Cache Object Loaded Into Sga (Doc ID 330239.1)
http://support.oracle.com

Memory Notification:Library Cache Object loaded in Heap size 2262K exceeds

Dear all
I am facing the following problem. I am using Oracle 10gR2 on Windows.
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High library cache load lock waits in AWR

Hi All,
Today i faced a significant performance problem related to shared pool. I made some observations, thought it would be a nice idea to share them with Oracle experts. Please feel free to add your observations/recommendations and correct me where i am wrong.
Here are the excerpts from AWR report created for the problem timing. Database server is on 10.2.0.3 and running with 2*16 configuration. DB cache size is 4,000M and shared pool size is of 3008M.
Snap Id Snap Time Sessions Cursors/Session
Begin Snap: 9994 29-Jun-09 10:00:07 672 66.3
End Snap: 10001 29-Jun-09 17:00:49 651 64.4
Elapsed:   420.70 (mins)
DB Time:   4,045.34 (mins)   -- Very poor response time visible from difference between DB time and elapsed time.
Load Profile
Per Second Per Transaction
Redo size: 248,954.70 23,511.82
Logical reads: 116,107.04 10,965.40
Block changes: 1,357.13 128.17
Physical reads: 125.49 11.85
Physical writes: 51.49 4.86
User calls: 224.69 21.22
Parses: 235.22 22.21
Hard parses: 4.83 0.46
Sorts: 102.94 9.72
Logons: 1.12 0.11
Executes: 821.11 77.55
Transactions: 10.59   -- User calls and Parse count are almost same, means most of the calls are for parse. Most of the parses are soft. Per transaction 22 parses are very high figure.
-- Not much disk I/O activity. Most of the reads are being satisfy from memory.
Instance Efficiency
Buffer Nowait %: 100.00 Redo NoWait %: 100.00
Buffer Hit %: 99.92 In-memory Sort %: 100.00
Library Hit %: 98.92 Soft Parse %: 97.95
Execute to Parse %: 71.35 Latch Hit %: 99.98
Parse CPU to Parse Elapsd %: 16.82 % Non-Parse CPU: 91.41 -- Low execute to parse ratio denotes CPU is significantly busy in parsing. Soft Parse% showing, most of the parse are soft parses. It means we should concentrate on soft parsing activity.
-- Parse CPU to Parse Elapsed % is quite low, means some bottleneck is there related to parsing. It could be a side-effect of huge parsing pressure. Like CPU cycles are not available.
Shared Pool Statistics
Begin End
Memory Usage %: 81.01 81.92
% SQL with executions>1: 88.51 86.93
% Memory for SQL w/exec>1: 86.16 86.76 -- Shared Pool memory seems ok (in 80% range)
-- 88% of the SQLs are repeating ones. It's a good sign.
Top 5 Timed Events
Event Waits Time(s) Avg Wait(ms) % Total Call Time Wait Class
library cache load lock 24,243 64,286 2,652 26.5 Concurrency
db file sequential read 1,580,769 42,267 27 17.4 User I/O
CPU time   33,039   13.6
latch: library cache 53,013 29,194 551 12.0 Concurrency
db file scattered read 151,669 13,550 89 5.6 User I/O Problem-1: Contention on Library cache: May be due to under-sized shared pool, incorrect parameters, poor application design, But since we already observed that most of the parses are soft parses and shared pool usgae in 80%, seems problem related to holding cursors. open_cursors/session_cached_cursors are red flags.
Problem-2: User I/O, may be due to poor SQLs, I/O sub-system, or poor physical design (wrong indexes are being used as DB file seq reads)
Wait Class
Wait Class Waits %Time -outs Total Wait Time (s) Avg wait (ms) Waits /txn
Concurrency 170,577 44.58 109,020 639 0.64
User I/O 2,001,978 0.00 59,662 30 7.49
System I/O 564,771 0.00 8,069 14 2.11
Application 145,106 1.25 6,352 44 0.54
Commit 176,671 0.37 4,528 26 0.66
Other 27,557 6.31 2,532 92 0.10
Network 6,862,704 0.00 696 0 25.68
Configuration 3,858 3.71 141 37 0.01
Wait Events
Event Waits %Time -outs Total Wait Time (s) Avg wait (ms) Waits /txn
library cache load lock 24,243 83.95 64,286 2652 0.09
db file sequential read 1,580,769 0.00 42,267 27 5.91
latch: library cache 53,013 0.00 29,194 551 0.20
db file scattered read 151,669 0.00 13,550 89 0.57
latch: shared pool 25,403 0.00 12,969 511 0.10
log file sync 176,671 0.37 4,528 26 0.66
enq: TM - contention 1,455 90.93 3,975 2732 0.01 Instance Activity Stats
opened cursors cumulative 5,290,760 209.60 19.80
parse count (failures) 6,181 0.24 0.02
parse count (hard) 121,841 4.83 0.46
parse count (total) 5,937,336 235.22 22.21
parse time cpu 283,787 11.24 1.06
parse time elapsed 1,687,096 66.84 6.31 Latch Activity
library cache 85,042,375 0.15 0.43 29194 304,831 7.16
library cache load lock 257,089 0.00 1.20 0 69,065 0.00
library cache lock 41,467,300 0.02 0.07 6 2,714 0.07
library cache lock allocation 730,422 0.00 0.44 0 0
library cache pin 28,453,986 0.01 0.16 8 167 0.00
library cache pin allocation 509,000 0.00 0.38 0 0 Init.ora parameters
cursor_sharing= EXACT
open_cursors= 3000
session_cached_cursors= 0
-- open_cursors value is too high. I have checked that maximum usage by a single session is 12%.
-- session_cached_cursors are 0 causing soft parsing. 500/600 is good number to start with.
cursor_sharing exact may cause hard parses. But here, hard parsing is comparatively small, we can ignore this.
From v$librarycache
NAMESPACE             GETS    GETHITS GETHITRATIO       PINS PINHITRATIO    RELOADS INVALIDATIONS
SQL AREA            162827      25127 .154317159 748901435 .999153087     107941         81886-- high invalidation count due to DDL like activities.
-- high reloads due to small library cache.
-- hit ratio too small.
-- Need to pin frequently executed objects into library cache.
P.S. Same question asked on Oracle_L, but due to formatting reasons, pasing duplicate contents here.
Regards,
Neeraj Bhatia
Edited by: Neeraj.Bhatia2 on Jul 13, 2009 6:51 AM

Thanks Charles. I really appreciate your efforts to diagnose the issue.
I agree with you performance issue is caused by soft parsing, which can be solved by holding cursors (session_cached_cursors). It may be due to oversized shared pool, which is causing delay in searching child cursors.
My second thought is, there is large number of reloads, which can be due to under-sized shared pool, if invalidation activities are not going (CBO statistics collection, DDL etc), cursors are being flushed frequently.
CPU utilization is continuously high (above 90%). Pasting additional information from same AWR report.
Namespace                Get Requests       Pct Miss        Pin Requests         Pct Miss      Reloads        Invalidations
BODY                       225,345               0.76            4,965,541            0.15           5,533           0
CLUSTER                   1,278                  1.41            2,542                  1.73           26                0
INDEX                       5,982                  9.31            13,922                7.35           258               0
SQL AREA                  141,465              54.10           27,831,235         1.21           69,863          19,085 Latch Miss Sources
Latch Name             Where                                         NoWait Misses                 Sleeps             Waiter Sleeps
library cache lock       kgllkdl: child: no lock handle             0                                   8,250                   5,792 Time Model Statistics
Statistic Name                                                                           Time (s)                               % of DB Time
sql execute elapsed time                                                           206,979.31                                      85.27
PL/SQL execution elapsed time                                                    94,651.78                                      39.00
DB CPU                                                                                     33,039.29                                      13.61
parse time elapsed                                                                      22,635.47                                       9.33
inbound PL/SQL rpc elapsed time                                                  14,763.48                                       6.08
hard parse elapsed time                                                               14,136.77                                       5.82
connection management call elapsed time                                        1,625.07                                       0.67
PL/SQL compilation elapsed time                                                        760.76                                       0.31
repeated bind elapsed time                                                               664.81                                       0.27
hard parse (sharing criteria) elapsed time                                             500.11                                       0.21
Java execution elapsed time                                                              252.95                                       0.10
failed parse elapsed time                                                                   167.23                                       0.07
hard parse (bind mismatch) elapsed time                                             124.11                                       0.05
sequence load elapsed time                                                                23.34                                        0.01
DB time                                                                                   242,720.12
background elapsed time                                                             11,645.52
background cpu time                                                                      247.25 According to this DB CPU is 65% utilization (DB CPU + Background CPU / Total Available CPU seconds). While at the same time DB host was 95% utilized (confirmed from DBA_HIST_SYSMETRIC_SUMMARY).
Operating System Statistics
Statistic                                         Total
BUSY_TIME                             3,586,030
IDLE_TIME                              1,545,064
IOWAIT_TIME                              22,237
NICE_TIME                                           0
SYS_TIME                                  197,661
USER_TIME                              3,319,452
LOAD                                                 11
RSRC_MGR_CPU_WAIT_TIME                  0
PHYSICAL_MEMORY_BYTES          867,180
NUM_CPUS                                           2

User Library "Caches" missing/invisible?

This is a problem that seems to have happened since I installed SL.
I am scanning my CD booklets into my Macbook Pro, basically so I can read them more easily using the zoom facility. Using an app called CdPedia, they were stored as follows:
file:///Users/meng/Library/Caches/Metadata/CDpedia/eli-b-f.jpg
However, the Caches folder containing all my jpg's has vanished (although the Main Library Caches folder is still there). No problem, I thought, I'll just restore from Time Capsule.
But no - I go into TC (backups back to March 2009) and there's no User Caches in there either, no matter which backup I look at. (As a separate issue, spotlight doesn't seem to work in TC either so I am unable to search for any jpg's.)
So can anyone speculate as to whether I've lost all my pics, or are they still there somewhere but hidden from me? And why doesn't Spotlight work in TC?
I'd appreciate any thoughts or speculation. Thanks.

Peter Wilson1 wrote:
This is a problem that seems to have happened since I installed SL.
I am scanning my CD booklets into my Macbook Pro, basically so I can read them more easily using the zoom facility. Using an app called CdPedia, they were stored as follows:
file:///Users/meng/Library/Caches/Metadata/CDpedia/eli-b-f.jpg
However, the Caches folder containing all my jpg's has vanished (although the Main Library Caches folder is still there). No problem, I thought, I'll just restore from Time Capsule.
But no - I go into TC (backups back to March 2009) and there's no User Caches in there either, no matter which backup I look at. (As a separate issue, spotlight doesn't seem to work in TC either so I am unable to search for any jpg's.)
So can anyone speculate as to whether I've lost all my pics, or are they still there somewhere but hidden from me? And why doesn't Spotlight work in TC?
I'd appreciate any thoughts or speculation. Thanks.
Time Machine excludes most caches. It backs-up the <user>/Library/Caches folder to preserve the structure, but excludes the contents.

先library cache pin还是先library cache lock??

Question from Oracler:
session1 给test 建主键
session2 select test 出现library cache lock
session3 select test 出现library cache pin
不是说先获得library cache lock再library cache pin吗
session1以exclusive模式获得 library cache lock
session2 以shared模式请求 library cache lock ，session1未释放，所以session2 wait
那session3 什么解释呢？？？？

as maclean answer:
SQL> select * from V$version;
BANNER
Oracle Database 10g Enterprise Edition Release 10.2.0.1.0 - 64bi
PL/SQL Release 10.2.0.1.0 - Production
CORE    10.2.0.1.0      Production
TNS for Linux: Version 10.2.0.1.0 - Production
NLSRTL Version 10.2.0.1.0 - Production
session A SQL> alter table maclean add a10 char(2000) default 'maclean';
session B: select 1 from maclean where rownum=1;      ==> hang here !
session C: select 1 from maclean where rownum=1;   ==> SAME SQL, hang here !
SQL> select event from v$session where event like 'library%';
EVENT
library cache lock
library cache pin
session 4:
SQL> oradebug setmypid;
Statement processed.
SQL> oradebug dump systemstate 266;
Statement processed.
SQL> oradebug tracefile_name;
/s01/admin/G10R21/udump/g10r21_ora_6208.trc
    SO: 0x84f5b4a8, type: 4, owner: 0x84e5d4f8, flag: INIT/-/-/0x00
    (session) sid: 142 trans: (nil), creator: 0x84e5d4f8, flag: (41) USR/- BSY/-/-/-/-/-
              DID: 0001-0010-00000027, short-term DID: 0000-0000-00000000
              txn branch: (nil)
              oct: 3, prv: 0, sql: 0x7bf10088, psql: 0x7bf582f0, user: 0/SYS
    O/S info: user: oracle, term: pts/1, ospid: 6159, machine: vrh8.oracle.com
              program: [email protected] (TNS V1-V3)
    application name: [email protected] (TNS V1-V3), hash value=0
    waiting for 'library cache lock' blocking sess=0x(nil) seq=23 wait_time=0 seconds since wait started=17
                handle address=7c3a5560, lock address=8003b350, 100*mode+namespace=c9
    Dumping Session Wait History
     for 'library cache lock' count=1 wait_time=2149666
                handle address=7c3a5560, lock address=8003b350, 100*mode+namespace=c9
     for 'library cache lock' count=1 wait_time=2930643
                handle address=7c3a5560, lock address=8003b350, 100*mode+namespace=c9
     for 'library cache lock' count=1 wait_time=2930300
                handle address=7c3a5560, lock address=8003b350, 100*mode+namespace=c9
     for 'library cache lock' count=1 wait_time=2930715
                handle address=7c3a5560, lock address=8003b350, 100*mode+namespace=c9
     for 'library cache lock' count=1 wait_time=2930545
                handle address=7c3a5560, lock address=8003b350, 100*mode+namespace=c9
     for 'library cache lock' count=1 wait_time=2929985
session 142 is B waiting for library cache lock
the lock handle address is 7c3a5560
        SO: 0x8003b350, type: 53, owner: 0x84f98ba0, flag: INIT/-/-/0x00
        LIBRARY OBJECT LOCK: lock=8003b350 handle=7c3a5560 request=S
        call pin=(nil) session pin=(nil) hpc=0005 hlc=0000
        htl=0x8003b3d0[0x7d034330,0x7d034330] htb=0x7d034330 ssga=0x7e9f2168
        user=84f5b4a8 session=84f5b4a8 count=0 flags=RES/[0010] savepoint=0x1f9
        LIBRARY OBJECT HANDLE: handle=7c3a5560 mutex=0x7c3a5690(0)
        name=SYS.MACLEAN
        hash=458787ae49fd6f284ccb04a892b38231 timestamp=02-09-2012 21:32:36
        namespace=TABL flags=KGHP/TIM/SML/[02000000]
        kkkk-dddd-llll=0000-0701-0701 lock=X pin=X latch#=3 hpc=0006 hlc=0004
        lwt=0x7c3a5608[0x8003b380,0x8003b380] ltm=0x7c3a5618[0x7c3a5618,0x7c3a5618]
        pwt=0x7c3a55d0[0x7c3a55d0,0x7c3a55d0] ptm=0x7c3a55e0[0x7c3a55e0,0x7c3a55e0]
        ref=0x7c3a5638[0x7c3a5638,0x7c3a5638] lnd=0x7c3a5650[0x7bf75a18,0x7bf90650]
          LIBRARY OBJECT: object=7c1dec60
          type=TABL flags=EXS/LOC/UPD[0905] pflags=[0000] status=VALD load=0
          DATA BLOCKS:
          data#     heap pointer    status pins change whr
              0 7c3a54a0 7c1ded78 I/P/A/-/-    0 NONE   00
              8 7c1de7f0 7e33ed48 I/P/A/-/-    1 UPDATE 00
              9 7c1de8c0 7bf109e8 I/P/A/-/-    1 NONE   00
             10 7c1de948 7bf10600 I/P/A/-/-    1 NONE   00
关于session B的 library cache lock ，其原因是 add column 的session A 以 X mode lock SYS.MACLEAN, X mode pin SYS.MACLEAN 且不释放，所以session B的 library cache lock不用多解释
session C:
    SO: 0x84f5dd18, type: 4, owner: 0x84e5dce0, flag: INIT/-/-/0x00
    (session) sid: 144 trans: (nil), creator: 0x84e5dce0, flag: (41) USR/- BSY/-/-/-/-/-
              DID: 0001-0011-0000000A, short-term DID: 0000-0000-00000000
              txn branch: (nil)
              oct: 3, prv: 0, sql: 0x7bf10088, psql: 0x7bf582f0, user: 0/SYS
    O/S info: user: oracle, term: pts/2, ospid: 6183, machine: vrh8.oracle.com
              program: [email protected] (TNS V1-V3)
    application name: [email protected] (TNS V1-V3), hash value=0
    waiting for 'library cache pin' blocking sess=0x(nil) seq=19 wait_time=0 seconds since wait started=17
                handle address=7bf46e40, pin address=7f03f890, 100*mode+namespace=c8
    Dumping Session Wait History
     for 'library cache pin' count=1 wait_time=2568684
                handle address=7bf46e40, pin address=7f03f890, 100*mode+namespace=c8
     for 'library cache pin' count=1 wait_time=2930677
                handle address=7bf46e40, pin address=7f03f890, 100*mode+namespace=c8
     for 'library cache pin' count=1 wait_time=2929805
                handle address=7bf46e40, pin address=7f03f890, 100*mode+namespace=c8
     for 'library cache pin' count=1 wait_time=2931420
                handle address=7bf46e40, pin address=7f03f890, 100*mode+namespace=c8
     for 'library cache pin' count=1 wait_time=2930258
                handle address=7bf46e40, pin address=7f03f890, 100*mode+namespace=c8
session 144 is session C , waiting for library cache pin
handle address 7bf46e40=> 指向一个 child cursor namespace=CRSR，而这个child cursor已经被 session B pin住了：
      SO: 0x7f03f890, type: 54, owner: 0x84f5dd18, flag: INIT/-/-/0x00
      LIBRARY OBJECT PIN: pin=7f03f890 handle=7bf46e40 request=S lock=0
      user=84f5dd18 session=84f5dd18 count=0 mask=0000 savepoint=0x3f flags=[00]
      SO: 0x7ec4cc80, type: 53, owner: 0x84f5dd18, flag: INIT/-/-/0x00
      LIBRARY OBJECT LOCK: lock=7ec4cc80 handle=7bf46e40 mode=N
      call pin=(nil) session pin=(nil) hpc=0000 hlc=0000
      htl=0x7ec4cd00[0x7e449348,0x80c35108] htb=0x80c35108 ssga=0x80c34ff0
      user=84f5dd18 session=84f5dd18 count=1 flags=[0000] savepoint=0x0
      LIBRARY OBJECT HANDLE: handle=7bf46e40 mutex=0x7bf46f70(0)
      namespace=CRSR flags=RON/KGHP/PN0/[10010000]
      kkkk-dddd-llll=0000-0001-0000 lock=N pin=X latch#=3 hpc=0004 hlc=0004
      lwt=0x7bf46ee8[0x7bf46ee8,0x7bf46ee8] ltm=0x7bf46ef8[0x7bf46ef8,0x7bf46ef8]
      pwt=0x7bf46eb0[0x7f03f8c0,0x7f03f8c0] ptm=0x7bf46ec0[0x7bf46ec0,0x7bf46ec0]
      ref=0x7bf46f18[0x7bf7bfe0,0x7bf7bfe0] lnd=0x7bf46f30[0x7bf46f30,0x7bf46f30]
        LIBRARY OBJECT: object=7bf29018
        type=CRSR flags=EXS[0001] pflags=[0000] status=VALD load=0
        READ ONLY DEPENDENCIES: count=1 size=16
        DATA BLOCKS:
        data#     heap pointer    status pins change whr
            0 7bf20060 7bf28ba8 I/P/A/-/-    0 NONE   00
            6 7bf77a20 7bf776f8 I/P/A/-/-    1 NONE   00
我们可以找到上面这个child cursor 的 parent cursor :
      SO: 0x7d03b620, type: 53, owner: 0x84f5b4a8, flag: INIT/-/-/0x00
      LIBRARY OBJECT LOCK: lock=7d03b620 handle=7bf10088 mode=N
      call pin=(nil) session pin=(nil) hpc=0000 hlc=0000
      htl=0x7d03b6a0[0x7d034030,0x7c03c9f8] htb=0x7d034030 ssga=0x7e9f2168
      user=84f5b4a8 session=84f5b4a8 count=1 flags=[0000] savepoint=0x1f7
      LIBRARY OBJECT HANDLE: handle=7bf10088 mutex=0x7bf101b8(0)
      name=select 1 from maclean where rownum=1
      hash=324793c639b13d0954bd5421eaed6701 timestamp=03-08-2012 02:29:24
      namespace=CRSR flags=RON/KGHP/TIM/KEP/PN0/SML/DBN/[12010044]
      kkkk-dddd-llll=0001-0001-0001 lock=N pin=0 latch#=3 hpc=0004 hlc=0004
      lwt=0x7bf10130[0x7bf10130,0x7bf10130] ltm=0x7bf10140[0x7bf10140,0x7bf10140]
      pwt=0x7bf100f8[0x7bf100f8,0x7bf100f8] ptm=0x7bf10108[0x7bf10108,0x7bf10108]
      ref=0x7bf10160[0x7bf10160,0x7bf10160] lnd=0x7bf10178[0x82f4f2f8,0x7bf4d608]
        LIBRARY OBJECT: object=7bf7c8a8
        type=CRSR flags=EXS[0001] pflags=[0000] status=VALD load=0
        CHILDREN: size=16
        child#    table reference   handle
             0 7bf7c370 7bf7bfe0 7bf46e40                           => 只有一个child handle 7bf46e40
        DATA BLOCKS:
        data#     heap pointer    status pins change whr
            0 7bf2a428 7bf7c9c0 I/P/A/-/-    0 NONE   00即在session B parse SQL "select 1 from maclean where rownum=1" 的时候，会生成一个child cursor 并 X mode pin住这个child cursor ，而session C 同时发起一样的SQL语句 "select 1 from maclean where rownum=1" 时需要 share 这个child cursor ，即以 S mode pin 这个child cursor ，但是session B 还没有完成 optimize 没有生成完整的child cursor ，需要等待 session A 释放 library cache lock才能完成，所以 session C 要等 session B build child cursor ，此时session C等" library cache pin" ；
如果 session C 执行的是不一样的SQL，那么 session C 不share 同一个child cursor ， session C 会wait for library cache lock.
since 10.2.0.3 "_kks_use_mutex_pin"=TRUE or 11g 开始使用mutex 保护cursor pin ，所以 session C 若执行与session B 一样的SQL，那么 wiat for cursor pin S on X
SQL> select * from V$version;
BANNER
Oracle Database 11g Enterprise Edition Release 11.2.0.3.0 - 64bit Production
PL/SQL Release 11.2.0.3.0 - Production
CORE 11.2.0.3.0 Production
TNS for Linux: Version 11.2.0.3.0 - Production
NLSRTL Version 11.2.0.3.0 - Production
session A:
SQL> alter table test add t11 char(2000) default 'maclean';
session B:
SQL> select * from test where rownum=1;
session C:
SQL> select * from test where rownum=1;
SQL> select event from v$session where wait_class='Concurrency';
EVENT
cursor: pin S wait on X
library cache lock
SQL> oradebug setmypid;
Statement processed.
SQL> oradebug dump systemstate 266;
Statement processed.
session C:
SO: 0x9e2256b8, type: 4, owner: 0x9e59a1c0, flag: INIT/-/-/0x00 if: 0x3 c: 0x3
proc=0x9e59a1c0, name=session, file=ksu.h LINE:12624, pg=0
(session) sid: 179 ser: 41307 trans: (nil), creator: 0x9e59a1c0
flags: (0x41) USR/- flags_idl: (0x1) BSY/-/-/-/-/-
flags2: (0x40009) -/-/INC
DID: , short-term DID:
txn branch: (nil)
oct: 3, prv: 0, sql: 0x956e18b8, psql: 0x956e18b8, user: 0/SYS
ksuxds FALSE at location: 0
service name: SYS$USERS
client details:
O/S info: user: oracle, term: pts/3, ospid: 26823
machine: vrh1.oracle.com program: [email protected] (TNS V1-V3)
application name: [email protected] (TNS V1-V3), hash value=1481565533
Current Wait Stack:
0: waiting for 'cursor: pin S wait on X'
idn=0xe76d0d8c, value=0xca00000000, where=0x500000000
wait_id=17 seq_num=18 snap_id=1
wait times: snap=12.671273 sec, exc=12.671273 sec, total=12.671273 sec
wait times: max=infinite, heur=12.671273 sec
wait counts: calls=1148 os=1148
in_wait=1 iflags=0x15b2
There is at least one session blocking this session.
Dumping 1 direct blocker(s):
inst: 1, sid: 202, ser: 15511
Dumping final blocker:
inst: 1, sid: 9, ser: 1
Wait State:
fixed_waits=0 flags=0x22 boundary=(nil)/-1
idn=0xe76d0d8c=> 这个是mutex的标示
KGX Atomic Operation Log 0x94aa8ca8
Mutex 0x8a328978(202, 0) idn e76d0d8c oper GET_SHRD
Cursor Pin uid 179 efd 0 whr 5 slp 1148
opr=2 pso=0x8b5a8c48 flg=0
pcs=0x8a3288e0 nxt=(nil) flg=35 cld=1 hd=0x93d4bbb8 par=0x8a328048
ct=1 hsh=0 unp=(nil) unn=0 hvl=8a328ef0 nhv=1 ses=0x9e1e0ea0
hep=0x8a328978 flg=80 ld=1 ob=0x939a30b0 ptr=0x935e0348 fex=0x935df6f0
这个mutex的 oper是 GET_SHRD 即 pin S 它指向 0x93d4bbb8 是一个child cursor
以下是parent cursor:
SO: 0x957fa9d8, type: 78, owner: 0x9e1e0ea0, flag: INIT/-/-/0x00 if: 0x3 c: 0x3
proc=0x9e593da0, name=LIBRARY OBJECT LOCK, file=kgl.h LINE:8547, pg=0
LibraryObjectLock: Address=0x957fa9d8 Handle=0x956e18b8 Mode=N CanBeBrokenCount=1 Incarnation=1 ExecutionCount=0
User=0x9e1e0ea0 Session=0x9e1e0ea0 ReferenceCount=1 Flags=CNB/[0001] SavepointNum=4f5864b8
LibraryHandle: Address=0x956e18b8 Hash=e76d0d8c LockMode=N PinMode=0 LoadLockMode=0 Status=VALD
ObjectName: Name=select * from test where rownum=1
FullHashValue=7e277fabf95d7c80e8924ed6e76d0d8c Namespace=SQL AREA(00) Type=CURSOR(00) Identifier=3882683788 OwnerIdn=0
Statistics: InvalidationCount=1 ExecutionCount=2 LoadCount=3 ActiveLocks=2 TotalLockCount=4 TotalPinCount=1
Counters: BrokenCount=1 RevocablePointer=1 KeepDependency=1 BucketInUse=3 HandleInUse=3 HandleReferenceCount=0
Concurrency: DependencyMutex=0x956e1968(0, 2, 0, 0) Mutex=0x956e19e8(0, 45, 0, 0)
Flags=RON/PIN/TIM/PN0/DBN/[10012841]
WaitersLists:
Lock=0x956e1948[0x956e1948,0x956e1948]
Pin=0x956e1928[0x956e1928,0x956e1928]
LoadLock=0x956e19a0[0x956e19a0,0x956e19a0]
Timestamp: Current=03-08-2012 02:45:45
HandleReference: Address=0x956e1a78 Handle=(nil) Flags=[00]
LibraryObject: Address=0x8a327fa8 HeapMask=0000-0001-0001-0000 Flags=EXS[0000] Flags2=[0000] PublicFlags=[0000]
ChildTable: size='16'
Child: id='0' Table=0x8a328e58 Reference=0x8a3288b8 Handle=0x956db988
Child: id='1' Table=0x8a328e58 Reference=0x8a328b80 Handle=0x93d4bbb8
NamespaceDump:
Parent Cursor: sql_id=fj4kfuvmqu3cc parent=0x8a328048 maxchild=2 plk=y ppn=n
但是很可惜 0x93d4bbb8 这个 child cursor 被 session B pin住了：
SO: 0x957fa8d8, type: 78, owner: 0x9e1e0ea0, flag: INIT/-/-/0x00 if: 0x3 c: 0x3
proc=0x9e593da0, name=LIBRARY OBJECT LOCK, file=kgl.h LINE:8547, pg=0
LibraryObjectLock: Address=0x957fa8d8 Handle=0x93d4bbb8 Mode=N CanBeBrokenCount=1 Incarnation=1 ExecutionCount=0
ClusterLock=0x8f1945f8 Context=0x7fd379518308 User=0x9e1e0ea0 Session=0x9e1e0ea0 ReferenceCount=1
Flags=CBK/[0020] SavepointNum=0
LibraryHandle: Address=0x93d4bbb8 Hash=0 LockMode=N PinMode=X LoadLockMode=0 Status=VALD
Name: Namespace=SQL AREA(00) Type=CURSOR(00)
Statistics: InvalidationCount=0 ExecutionCount=0 LoadCount=1 ActiveLocks=2 TotalLockCount=2 TotalPinCount=3
Counters: BrokenCount=1 RevocablePointer=1 KeepDependency=0 BucketInUse=0 HandleInUse=0 HandleReferenceCount=0
Concurrency: DependencyMutex=0x93d4bc68(0, 0, 0, 0) Mutex=0x956e19e8(0, 45, 0, 0)
Flags=RON/PIN/PN0/EXP/CHD/[10012111]
WaitersLists:
Lock=0x93d4bc48[0x93d4bc48,0x93d4bc48]
Pin=0x93d4bc28[0x93d4bc28,0x93d4bc28]
LoadLock=0x93d4bca0[0x93d4bca0,0x93d4bca0]
LibraryObject: Address=0x939a30b0 HeapMask=0000-0001-0001-0000 Flags=EXS[0000] Flags2=[0000] PublicFlags=[0000]
DataBlocks:
Block: #='0' name=KGLH0^e76d0d8c pins=0 Change=NONE
Heap=0x93d1a808 Pointer=0x939a3150 Extent=0x939a3030 Flags=I/-/P/A/-/-
FreedLocation=0 Alloc=1.546875 Size=4.000000 LoadTime=4385736620
Block: #='6' name=SQLA^e76d0d8c pins=0 Change=NONE
Heap=0x8a328a20 Pointer=0x935e0348 Extent=0x935df6f0 Flags=I/-/P/A/-/E
FreedLocation=0 Alloc=0.000000 Size=0.000000 LoadTime=0
NamespaceDump:
Child Cursor: Heap0=0x939a3150 Heap6=0x935e0348 Heap0 Load Time=03-08-2012 02:50:16 Heap6 Load
PinMode=X
保持这个 X mode pin的是另外一个 mutex ，这个mutex的 oper是 LONG_EXCL
Time=03-08-2012 02:50:16 ----------------------------------------
KGX Atomic Operation Log 0x8f1945f8
Mutex 0x8a328978(202, 0) idn e76d0d8c oper LONG_EXCL
Cursor Pin uid 202 efd 0 whr 1 slp 0
opr=3 pso=0x957fa8d8 flg=0
pcs=0x8a3288e0 nxt=(nil) flg=35 cld=1 hd=0x93d4bbb8 par=0x8a328048
ct=1 hsh=0 unp=(nil) unn=0 hvl=8a328ef0 nhv=1 ses=0x9e1e0ea0
hep=0x8a328978 flg=80 ld=1 ob=0x939a30b0 ptr=0x935e0348 fex=0x935df6f0

Library Cache for Adobe Bridge CS4

I'm trying to clear up space on my harddrive for my macbook, and in my library folder, there is a cache folder which then has various adobe products. The Adobe Bridge CS4 folder has almost 20 GB of stuff in it. Can I get rid of this (safe to delete)? Why does it build up so much? Do I need to periodically manage this manually? Any help you can offer would be much appreciated. Thanks!

The cache folder for Bridge can grow to huge proportions because it keeps
information for all earlier cached files. After quitting Bridge you can
delete this folder (user library/caches /Adobe/Bridge CS4/cache) by dragging
this to the trash and empty bin to make space on your HD.
Restarting Bridge creates a brand new cache folder in this place but this
one is empty. Therefore you will need to recache all files you want to show
at high quality in the preview window again because with deleting this data
the cache with all previews (including the HQ preview that are mainly
responsible for the huge size) from previous cached files will also be gone.
Personally I use this method on a regular base including restarting Bridge
holding down option key to refresh preferences, this gives a fresh start for
Bridge.
I mainly use Bridge for sorting, rating and adding metadata and once the DNG
files I want have been developed they are transferred to my archive and
don't need to be in the cache file anymore
So with keep in mind that you need to recache the current files you are
using (takes some time depending on amount and size of the files you can
safely delete the current huge cache file.
Can I get rid of this (safe to delete)? Why does it build up so much? Do I
need to periodically manage this manually?

I did everything lllaass suggested and removed most of the itunes related components, but when I tried to remove itunes, I got the message, "The feature you are trying to use is on a network resource that is unavailable" so I was not able to uninstall it.

I did everything lllaass suggested and removed most of the itunes related components, but when I tried to remove itunes, I got the message, "The feature you are trying to use is on a network resource that is unavailable" so I was not able to uninstall it.

(1) Download the Windows Installer CleanUp utility installer file (msicuu2.exe) from the following Major Geeks page (use one of the links under the "DOWNLOAD LOCATIONS" thingy on the Major Geeks page).
http://majorgeeks.com/download.php?det=4459
Here's a screenshot showing the particular links on the page that you should be clicking:
After clicking one of the circled links, you should be taken to another page, and after a few seconds you should see a download dialog appear for the msicuu2.exe file. Here's a screenshot of what it looks like for me in Firefox:
Choose to Save the file. If the dialog box does not appear for you, click the link on the page that says "CLICK HERE IF IT DOES NOT". Here's a screenshot of the page with the relevant link circled:
When the dialog appears, choose to save the file.
(2) Go to the Downloads area for your Web browser. Doubleclick the msicuu2.exe file and follow the prompts to install the Windows Installer CleanUp utility. (If you're on a Windows Vista or Windows 7 system and you get a Code 800A0046 error message when doubleclicking the msicuu2.exe file, try instead right-clicking on the msicuu2.exe file and selecting "Run as administrator".)
(3) In your Start menu click All Programs and then click Windows Install Clean Up. The Windows Installer CleanUp utility window appears, listing software that is currently installed on your computer.
(4) In the list of programs that appears in CleanUp, select any iTunes entries and click "Remove", as per the following screenshot:
(5) Quit out of CleanUp, restart the PC and try another iTunes install. Does it go through properly this time?

I can't sync my music on iPhone 4S - trying to do manually but don't get options to drag and drop . If I uncheck everything in my library it won't remove from my iphone

I cannot sync my 4s. If I uncheck all items on my library it doesn't remove all music from my phone. If I try to update manually I do not get the drag and drop options that the user guide states I should?

Did you check "Manually manage music and videos" in iTunes before you tried to drag and drop?

How can I access deleted photos from my iPhoto Library Cache?

My Macbook Pro broke about a year ago and I recently took the hard drive out to access the files. I have a hard drive enclosure to USB to my Acer (Windows) Laptop. I was looking through all the folders when I came across this: D:\Users\Lizee\Library\Caches\Desktop\iPhoto Albums
In this folder is a list of different albums I have had over the years and in the albums there are photo files, but I cannot view them! This gives me hope that maybe there is a way to salvage and get back some of the photos I once deleted! Please let me know if you know ANY way I can get any of these photos back... I will do anything!

I don't believe there is any way to do what you want. These are not your photos.
Regards
TD

How can I increase my Library Cache Hit Ratio?

I was wondering if anyone can help me out regarding the values that I am getting for my Library Cache hits stats
Half of the samples that I have taken on a periodic interval today have ranged from 89% to 96%.
The SQL that I have used is,
SELECT
sysdate,
SUM(PINS-RELOADS)/SUM(PINS)*100
from v\$librarycache
Also, Running the AWR report for 4am to 4pm, see below
Shared Pool Statistics AWR report
                    Begin      End
Memory Usage %:           50.83      42.43
% SQL with executions>1:      55.56      77.13
% Memory for SQL w/exec>1:      74.12
Regarding the current SGA settings,
SQL> show parameter sga_target;
NAME TYPE VALUE
sga_target big integer 1184M
SQL>
SQL> select pool,name,bytes/1048576 "Size in MB" from v$sgastat where name = 'free memory';
POOL NAME Size in MB
shared pool free memory 135.742641
large pool free memory 15.9389648
java pool free memory 16
The main questions are,
a) is the low Library cache hit ration particularly low?
b) if I want to improve this figure, it is advised that the 'SHARED_POOL_SIZE' parameter should be increased.
Obviously Oracle itself is in charge of this at present, so what can I do to improve?
c) Are there any really good links to help me to understand the figures that appear in the AWR report.

a) is the low Library cache hit ration particularly low?
I didnt understand this.Can you please rephrase?
b)
Well indeed that shared pool controls the allocation and everything about Library Cache but it doesnt mean that increasing the value will stop all the issues.Its among the hardest parameters to be tuned infact for the reason that what primarly comes into it,sql statements,code and all that,that is not written entirely by a dba/tuner.Its by developers who does some times not so good things that are required to make shared pool work properly.Very commonly occuring mistake can be quoted as the lack of use of bind variabls and constant use of literals.In that case,eventualy we will have a hard parse of all the statements which will eat up the shared pool some time or the other.No matter what size it may be,it will end to the same result.Hit ratio is a guiding factor,not the end goal of tuning.Its been documented so many places,here,other forums,even in OU books also that looking and tuning alone the hit ratio may not end up at the expected or right results.You should look for the Parse statistics in the AWR report how they are working.How many are Parse(hard),Parse(total) statistics coming up?What is the sql execute to parse time,elapsed time and the related statistics.They will be helpful in getting things sorted out more nicely and correctly.
I am sure I have missed so much than I said.Surely you will get more better advice on this.Have patience and wait.
b)Documentation will be a good point.Performance tuning in that is a good resource.
http://www.oracle.com/pls/db102/to_toc?pathname=server.102%
2Fb14211%2Ftoc.htm&remark=portal+%28Getting+Started%29
I am not sure about a specific book about AWR but this one is good for over all knowledge about tuning of Oracle.
http://www.mcgraw-hill.co.uk/html/007222729X.html
Aman....

Library Cache Pin Wait Event (within the context of APEX)

Hello,
Firstly -
Oracle Version: 10.2.0.4.0
Apex Version: 3.0.1.00.08
Okay, my colleague (no really! This isn't one of those "Ahem ... A friend of mine has contracted something nasty +downstairs+..."-type questions) is having problems compiling a package (using TOAD incidentally, but it's the same in SQL Developer).
I've searched the forum and the web for a bit of help on what's maybe happening here and it appears to be related to a concurrency conflict with the package definition - from what I can understand it's a case of the package is in use by another session, therefore another session cannot alter it at the same time (which makes sense)
"What does this have to do with APEX?"... well, he is working on this package using the following methodology:
1. Compile the package body/spec (as necessary - body more often obviously)
2. run an apex page which uses the code in a process, which may or may not result in the error page being displayed
3. Making changes to the package body/spec
repeat steps 1-3 ad nauseum...
He is the only user directly accessing the schema (and the only user accessing the page via APEX too, although I appreciate this isn't quite the same thing).
I was wondering if, due to the architecture of APEX (the use of session pools etc), the state of a package might be being retained in some manner, thus resulting in this library cache pin wait event? If so, is there anything I can do to mitigate against this occurring?
p.s. the only difference I can see between this particular package and any other package in the schema is that this one interacts with blobs (including making references to the wwv_flow_files view) - with blobs being passed as parameters between procedures (thus potentially creating temporary blobs which may or may not being closed).
Any ideas?
p.p.s. there are also no DBMS_SCHEDULER jobs or anything that might potentially be running the code incidentally...
Edited by: Joel_C on 11-Nov-2011 11:58
We got our DBAs to run a bit of code to identify the blocking session:
select
         decode(lob.kglobtyp, 0, 'NEXT OBJECT', 1, 'INDEX', 2, 'TABLE', 3, 'CLUSTER',
                      4, 'VIEW', 5, 'SYNONYM', 6, 'SEQUENCE',
                      7, 'PROCEDURE', 8, 'FUNCTION', 9, 'PACKAGE',
                      11, 'PACKAGE BODY', 12, 'TRIGGER',
                      13, 'TYPE', 14, 'TYPE BODY',
                      19, 'TABLE PARTITION', 20, 'INDEX PARTITION', 21, 'LOB',
                      22, 'LIBRARY', 23, 'DIRECTORY', 24, 'QUEUE',
                      28, 'JAVA SOURCE', 29, 'JAVA CLASS', 30, 'JAVA RESOURCE',
                      32, 'INDEXTYPE', 33, 'OPERATOR',
                      34, 'TABLE SUBPARTITION', 35, 'INDEX SUBPARTITION',
                      40, 'LOB PARTITION', 41, 'LOB SUBPARTITION',
                      42, 'MATERIALIZED VIEW',
                      43, 'DIMENSION',
                      44, 'CONTEXT', 46, 'RULE SET', 47, 'RESOURCE PLAN',
                      48, 'CONSUMER GROUP',
                      51, 'SUBSCRIPTION', 52, 'LOCATION',
                      55, 'XML SCHEMA', 56, 'JAVA DATA',
                      57, 'SECURITY PROFILE', 59, 'RULE',
                      62, 'EVALUATION CONTEXT',
                     'UNDEFINED') object_type,
         lob.KGLNAOBJ object_name,
         pn.KGLPNMOD lock_mode_held,
         pn.KGLPNREQ lock_mode_requested,
         ses.sid,
         ses.serial#,
         ses.username
    FROM
       x$kglpn pn,
       v$session ses,
       x$kglob lob,
       v$session_wait vsw
WHERE
   pn.KGLPNUSE = ses.saddr and
   pn.KGLPNHDL = lob.KGLHDADR
   and lob.kglhdadr = vsw.p1raw
   and vsw.event = 'library cache pin'
order by lock_mode_held descresults as follows (I've changed some object names to protect the ignorant):
OBJECT_TYP OBJECT_NAME                   LOCK_MODE_HELD LOCK_MODE_REQUESTED        SID    SERIAL# USERNAME
PACKAGE    PKG_FOOBAR                             2                   0        356      21694 HTMLDB_PUBLIC_U
                                                                                                  SER
PACKAGE    PKG_FOOBAR                             0                   3        463      22309 FOOHTMLDB_PUBLIC_USER is the apex user incidentally. The session is marked in the v$session table as "inactive", the last statement being
Begin
   Dbms_session.reset_package;
End;Edited by: Joel_C on 11-Nov-2011 14:39

bump
No-one?
The problem seems to have 'resolved itself' over the weekend incidentally (although I don't believe anything truly resolves itself in this manner - something must have changed).

Photoshop CS6 files saved to User/Library/Caches/Temporary Items

Many of the users on my school network cannot save their Photoshop files to a specified folder. Instead the files are automatically saved to User/Library/Caches/Temporary Items folder.
I've changed the File Handling Preferences with no results in changing this issue. Since a couple users did not experience this problem, I'm wondering if it might be a permissions problem.

With the new versions, you have to be more precise with Folder redirection :
com.apple.MCXRedirector
[dict] Always
[array] LoginRedirection
[dict] 0
[string] action deleteAndCreateSymLink
[string] destPath /tmp/%@/Library/Caches/Adobe
[string] path ~/Library/Caches/Adbobe
[dict] 1
[string] action deleteAndCreateSymLink
[string] destPath /tmp/%@/Library/Caches/Adobe Camera Raw
[string] path ~/Library/Caches/Adbobe Camera Raw
[dict] 2
[string] action deleteAndCreateSymLink
[string] destPath /tmp/%@/Library/Application Support/Adobe
[string] path ~/Library/Application Support/Adobe
[dict] 3
[string] action deleteAndCreateSymLink
[string] destPath /tmp/%@/Library/Caches/Meta
[string] path ~/Library/Caches/Meta
[dict] 4
[string] action deleteAndCreateSymLink
[string] destPath /tmp/%@/Documents/Données utilisateurs Microsoft/Office 2011 AutoRecovery
[string] path ~/Documents/Données utilisateurs Microsoft/Office 2011 AutoRecovery

Library cache pin when accessing apex_application_page_regions

Hi,
Oracle 11.2.0.3.0, APEX 4.1.1.00.23.
I am trying to compile a procedure that access apex_application_page_regions to get the region source of a report :
BEGIN
     -- get report region source
     SELECT region_source
          INTO l_source
          FROM apex_application_page_regions
      WHERE application_id = p_app_id
           AND page_id = p_app_page_id
           AND static_id = p_report;
END;I can't compile the procedure. After some time I get ORA-04021: timeout occured while waiting to lock object.
From v$session :
STATUS     SERVER          PROGRAM          SQL_EXEC_START          BLOCKING_SESSION_STATUS     BLOCKING_INSTANCE     BLOCKING_SESSION     EVENT               P1TEXT          WAIT_CLASS     STATE
ACTIVE     DEDICATED     plsqldev.exe     07/02/2012 09:12:52     VALID               1               971               library cache pin     handle address     Concurrency     WAITINGI am forced to ask developers to close all APEX instances to kill sessions, to be able to compile the procedure...
Is there any way to bypass this ?
Thank you.
Yann.

Yann39 wrote:
Hi,
Oracle 11.2.0.3.0, APEX 4.1.1.00.23.
I am trying to compile a procedure that access apex_application_page_regions to get the region source of a report :
BEGIN
     -- get report region source
     SELECT region_source
          INTO l_source
          FROM apex_application_page_regions
      WHERE application_id = p_app_id
           AND page_id = p_app_page_id
           AND static_id = p_report;
END;I can't compile the procedure. After some time I get ORA-04021: timeout occured while waiting to lock object.
From v$session :
STATUS     SERVER          PROGRAM          SQL_EXEC_START          BLOCKING_SESSION_STATUS     BLOCKING_INSTANCE     BLOCKING_SESSION     EVENT               P1TEXT          WAIT_CLASS     STATE
ACTIVE     DEDICATED     plsqldev.exe     07/02/2012 09:12:52     VALID               1               971               library cache pin     handle address     Concurrency     WAITINGI am forced to ask developers to close all APEX instances to kill sessions, to be able to compile the procedure...
Is there any way to bypass this ?
Thank you.
Yann.I previously had a problem similar to this. (Un)fortunately, the issue appeared to solve itself...
Library Cache Pin Wait Event (within the context of APEX)

Hi I would like to know if I can delete my file fpsaud (Library Cache) because my app Clean my mac cannot do it. Is this operation dangerous? Thanks

Hi I would like to know if I can delete my file psaud (Library Cache) because my App Mac Cleanse cannot do it. Can I move this this manually into the trash? Is it dangerous? Thanks

You should have stopped after the first paragraph, because that was the only helpful part. You managed to sarcastically tell the questioner that he or she is dumb, throw in a couple of tidbits to convince any reader how smart you must be, and discourage any further learning.
I saw nowhere in the original question where marcozroberto was complaining about speed.
Caches, to us lesser mortals, are one of the first culprits that come to mind when all the cookies (including smart cookies) and browser cache have been erased, yet the ads on Web pages still want to know if I'd like to find a date tonight in my specific area code. So, I turn to sites like the Apple discussion pages to find out what other pieces of memory I have to flush to feel less stalked. According to you, I shouldn't bother my poor head learning about this machine I bought, I should just trust manufacturers and programmers to manage everything.
I doubt fpsaud is really the problem with my browsing (my next guess is the IP address), but I won't learn that here.

Term cmd library/caches/rm -rfv * removed most docs folders

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