Export of instance takes long time

Hi,
we're exporting an instance of a 10g database and it takes incredible long time. The dba told me, he sees wait/io on db file sequential read.
I've tried to break the issue down on the OS side (Solaris 10 U09 Sparc,Generic_147440-09 ). The process ora_dw01_testinstance is doing all the work reading the source.
It uses 8k preads. Between 500 - 700 iops are transferred to the storage and replied, with a transfer rate from 5 - 8 mb/sec. Disk latency is around 4 - 10 ms.
When looking on the microstats of the process it's mainly on sleep (over 90 %) . I've started 3 dd calls with different blocksizes on different db files in the same filesystem. Although the files have not been in any cache, the storage delivered around 70 - 85 mb/sek, even with a 8k blocksize. Well, the latency was much more higher when the dd processes were running. But I'm still wondering why the export is working that poor.
Are there ways to get the read phase of the export improved?
thank you,
solst_ice
Edited by: 892620 on Nov 17, 2012 5:49 AM
Edited by: 892620 on Nov 17, 2012 6:00 AM

First off, which export utility are you using: expdp or exp? What parameters have been specified? Also 10g is a marketing lable and not a version of Oracle so what is the exact version of Oracle in use? There are more than 60 reports on Oracle support about datapump performance issues but most are Oracle version and feature specific.
If using datapump the following support document should be of interest:
Checklist For Slow Performance Of DataPump Export (expdp) And Import (impdp) [ID 453895.1]
If using exp then did you provide a buffer= parameter?
HTH -- Mark D Powell --

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Problem Export to Excel it takes long time and Takes more space.

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when we export to Excel in portal(reports), it takes long time and it takes more space.
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Note 1178857
[https://service.sap.com/sap/support/notes/1178857|https://service.sap.com/sap/support/notes/1178857]
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Full GC takes long time

Hello,
Since the last two weeks, we're experiencing Full GCs that take long time and block our application.
Our platform is:
Windows 2003 Server 64 bit
Tomcat 6.0.18
Java 1.6.0_u13.
Total memory: 8Gb.
-Xms4096m
-Xmx6144m
-Xss256k
Old generation: min 2,66Gb max 4,0G
Eden generation: min 1,5Gb max 2,0G
Perm generation: min 57Mb max 84Mb
Here a piece of our gc.log:
21601.266: [GC [PSYoungGen: 2009225K->6206K(1942528K)] 3913618K->1913365K(4738752K), 0.0992347 secs] [Times: user=0.16 sys=0.03, real=0.11 secs]
21611.268: [GC [PSYoungGen: 1942485K->5485K(1879040K)] 3849645K->1914490K(4675264K), 0.0986129 secs] [Times: user=0.11 sys=0.00, real=0.11 secs]
21618.350: [GC [PSYoungGen: 1879021K->12392K(2060928K)] 3788026K->1930794K(4857152K), 0.2036000 secs] [Times: user=0.14 sys=0.02, real=0.20 secs]
21624.869: [GC [PSYoungGen: 1935116K->8545K(2065600K)] 3853519K->1930702K(4861824K), 0.0924182 secs] [Times: user=0.05 sys=0.00, real=0.09 secs]
21624.961: [Full GC (System) [PSYoungGen: 8545K->0K(2065600K)] [PSOldGen: 1922156K->635750K(2796224K)] 1930702K->635750K(4861824K) [PSPermGen: 38643K->38643K(60992K)], 1.3719842 secs] [Times: user=1.09 sys=0.00, real=1.36 secs]
21634.887: [GC [PSYoungGen: 2048500K->10395K(2078912K)] 2684250K->646145K(4875136K), 0.0180670 secs] [Times: user=0.02 sys=0.05, real=0.01 secs]
21645.165: [GC [PSYoungGen: 2074007K->8120K(2003392K)] 2709758K->648930K(4799616K), 0.0176943 secs] [Times: user=0.08 sys=0.00, real=0.03 secs]
25209.938: [GC [PSYoungGen: 1760190K->7344K(1707072K)] 4127764K->2376892K(4503296K), 0.0760053 secs] [Times: user=0.11 sys=0.03, real=0.06 secs]
25218.120: [GC [PSYoungGen: 1707056K->10511K(1657728K)] 4076604K->2382964K(4453952K), 0.0704081 secs] [Times: user=0.13 sys=0.00, real=0.08 secs]
25221.680: [GC [PSYoungGen: 1657679K->5731K(1982400K)] 4030132K->2385544K(4778624K), 0.0985384 secs] [Times: user=0.20 sys=0.00, real=0.09 secs]
25226.968: [GC [PSYoungGen: 993426K->6083K(1982784K)] 3373239K->2389543K(4779008K), 0.5147901 secs] [Times: user=0.08 sys=0.00, real=0.52 secs]
25227.483: [Full GC (System) [PSYoungGen: 6083K->0K(1982784K)] [PSOldGen: 2383460K->536034K(2796224K)] 2389543K->536034K(4779008K) [PSPermGen: 39765K->38756K(58816K)], 155.4030025 secs] [Times: user=1.34 sys=0.64, real=155.39 secs]
25389.833: [GC [PSYoungGen: 1976624K->12915K(2023616K)] 2512658K->566671K(4819840K), 13.1263397 secs] [Times: user=0.11 sys=0.03, real=13.13 secs]
25405.871: [GC [PSYoungGen: 2023579K->13857K(2031552K)] 2577335K->583736K(4827776K), 3.5796784 secs] [Times: user=0.03 sys=0.00, real=3.58 secs]
25416.490: [GC [PSYoungGen: 2024544K->9059K(2074944K)] 2594423K->587581K(4871168K), 0.1184355 secs] [Times: user=0.06 sys=0.00, real=0.13 secs]
25425.393: [GC [PSYoungGen: 2064144K->7415K(2075456K)] 2642665K->590222K(4871680K), 0.0441002 secs] [Times: user=0.02 sys=0.00, real=0.05 secs]
25438.547: [GC [PSYoungGen: 2062519K->8857K(2075264K)] 2645326K->594735K(4871488K), 0.0301620 secs] [Times: user=0.01 sys=0.00, real=0.03 secs]
The minor collections go perfect.
The first full GC in this piece of log takes 1,36s, and the old generation passes from 1922156K->635750K
But the second full GC (1 hour later) blocks the server for 155.39s, and the old generation pases from 2383460K->536034K
The server load between execution of full GC was similar. Any differences I saw in this two moments:
first full gc: number of Tomcat http threads : 230. The full gc provokes that Tomcat start new threads until get 500 (maxThreads)
second full gc: number of Tomcat http threads : 500.
I'm not an expert in tunning jvm. If somebody could help me, these pauses are killing the app and it's unacceptable for my client (for 2 min. the app does not work).
If you need more information (threads stack, histograms, ... I have ...)
Maybe I need to reduce the size of the old generation? Or change the garbage collector for old generation? The server cpu is going well, I prefer to consume more cpu in gc and avoid this pauses.
Any help will be very very appreciated.
Thanks in advance,
Joan.

Hello,
Sorry for my continuous replies. Another full gc has occurred. This is the trace:
262631.531: [GC [PSYoungGen: 2071685K->10889K(2078464K)] 4711353K->2652961K(4874688K), 0.3392037 secs] [Times: user=0.08 sys=0.00, real=0.34 secs]
262640.608: [GC [PSYoungGen: 2071978K->11055K(2078784K)] 4714051K->2656136K(4875008K), 1.3267436 secs] [Times: user=0.06 sys=0.00, real=1.33 secs]
262649.880: [GC [PSYoungGen: 2072165K->17337K(2071872K)] 4717246K->2669454K(4868096K), 3.0493937 secs] [Times: user=0.16 sys=0.00, real=3.05 secs]
262658.069: [GC [PSYoungGen: 2071865K->14678K(2075840K)] 4723982K->2676078K(4872064K), 5.4598301 secs] [Times: user=0.08 sys=0.03, real=5.45 secs]
262666.592: [GC [PSYoungGen: 2069183K->15835K(2075776K)] 4730583K->2682691K(4872000K), 1.6894894 secs] [Times: user=0.11 sys=0.05, real=1.70 secs]
262673.352: [GC [PSYoungGen: 2070620K->14122K(2068992K)] 4737476K->2687230K(4865216K), 2.9711981 secs] [Times: user=0.06 sys=0.03, real=2.97 secs]
262682.891: [GC [PSYoungGen: 2068909K->10709K(2075712K)] 4742017K->2686673K(4871936K), 1.1160323 secs] [Times: user=0.19 sys=0.00, real=1.13 secs]
262691.733: [GC [PSYoungGen: 2065941K->10683K(2075584K)] 4741905K->2689212K(4871808K), 1.4898942 secs] [Times: user=0.05 sys=0.00, real=1.50 secs]
262701.512: [GC [PSYoungGen: 2065888K->9341K(2076480K)] 4744418K->2690073K(4872704K), 1.3835846 secs] [Times: user=0.13 sys=0.00, real=1.39 secs]
262709.896: [GC [PSYoungGen: 2065601K->10718K(2076480K)] 4746334K->2693212K(4872704K), 0.7815897 secs] [Times: user=0.05 sys=0.01, real=0.78 secs]
262718.681: [GC [PSYoungGen: 2067028K->10199K(2076672K)] 4749523K->2695508K(4872896K), 1.2951014 secs] [Times: user=0.06 sys=0.00, real=1.30 secs]
262727.940: [GC [PSYoungGen: 2067345K->10112K(2076608K)] 4752654K->2698129K(4872832K), 1.6785345 secs] [Times: user=0.08 sys=0.00, real=1.69 secs]
262736.092: [GC [PSYoungGen: 2067264K->10886K(2077184K)] 4755281K->2702237K(4873408K), 1.1985764 secs] [Times: user=0.06 sys=0.02, real=1.20 secs]
262744.626: [GC [PSYoungGen: 2069382K->11366K(2077248K)] 4760733K->2705795K(4873472K), 1.4323653 secs] [Times: user=0.13 sys=0.00, real=1.44 secs]
262754.913: [GC [PSYoungGen: 2069912K->11945K(2077824K)] 4764342K->2708689K(4874048K), 0.8340946 secs] [Times: user=0.03 sys=0.00, real=0.84 secs]
262765.038: [GC [PSYoungGen: 2072283K->11669K(2077888K)] 4769028K->2711204K(4874112K), 1.3040060 secs] [Times: user=0.09 sys=0.02, real=1.31 secs]
262776.885: [GC [PSYoungGen: 2072021K->9940K(2079360K)] 4771556K->2711919K(4875584K), 0.8646772 secs] [Times: user=0.09 sys=0.00, real=0.88 secs]
262783.713: [GC [PSYoungGen: 1173115K->8659K(2079168K)] 3875094K->2713127K(4875392K), 1.4434465 secs] [Times: user=0.09 sys=0.00, real=1.45 secs]
262785.157: [Full GC (System) [PSYoungGen: 8659K->0K(2079168K)] [PSOldGen: 2704467K->655075K(2796224K)] 2713127K->655075K(4875392K) [PSPermGen: 41376K->40988K(42048K)], 132.6088125 secs] [Times: user=1.47 sys=0.39, real=132.58 secs]
262925.100: [GC [PSYoungGen: 2062280K->16892K(2068992K)] 2717355K->683188K(4865216K), 8.9491611 secs] [Times: user=0.13 sys=0.00, real=8.94 secs]
262971.183: [GC [PSYoungGen: 2068978K->8052K(2074624K)] 2735273K->692990K(4870848K), 7.7833800 secs]
When a "bad" full GC occurs, I can see that just before it the minor collections start to perform bad. Normal values for minor collections are 0,0x seconds, and before a "bad" full GC these minor collections take seconds (1, 2, ... up to 5 seconds).
I can show an histogram of the first 25 entries before and after the full GC:
BEFORE
num #instances #bytes class name
1: 226135 718455272 [I
2: 1905686 637239584 [C
3: 122775 621626112 [B
4: 8218 538714736 [Lcom.sun.org.apache.xpath.internal.objects.XObject;
5: 160974 445403288 [Ljava.lang.Object;
6: 1759928 70397120 java.lang.String
7: 334672 42838016 com.sun.org.apache.xerces.internal.dom.DeferredElementNSImpl
8: 103592 42699248 [[I
9: 227966 41945744 java.net.SocksSocketImpl
10: 629974 35278544 com.vpfw.proxy.cache.data.B
11: 636515 30552720 java.util.concurrent.ConcurrentHashMap$HashEntry
12: 555354 26656992 java.util.HashMap$Entry
13: 89059 18034280 [Ljava.util.HashMap$Entry;
14: 230432 16591104 com.sun.org.apache.xerces.internal.dom.DeferredTextImpl
15: 225401 14425664 java.lang.ref.Finalizer
16: 222588 14245632 java.net.SocketInputStream
17: 334644 13385760 com.sun.org.apache.xerces.internal.dom.AttributeMap
18: 386837 12378784 java.util.concurrent.ConcurrentLinkedQueue$Node
19: 40226 11263504 [[Ljava.lang.Object;
20: 21646 11246112 [Ljava.util.concurrent.ConcurrentHashMap$HashEntry;
21: 684613 10953808 java.lang.Object
22: 227958 9118320 java.net.Socket
23: 218591 8743640 java.net.Inet4Address
24: 57810 8730528 <constMethodKlass>
25: 230658 7381056 java.io.FileDescriptor
AFTER
num #instances #bytes class name
1: 91917 650028776 [B
2: 1767088 612264368 [C
3: 176313 581838552 [I
4: 141278 322132688 [Ljava.lang.Object;
5: 1762956 70518240 java.lang.String
6: 367122 46991616 com.sun.org.apache.xerces.internal.dom.DeferredElementNSImpl
7: 239506 44069104 java.net.SocksSocketImpl
8: 633882 35497392 com.vpfw.proxy.cache.data.B
9: 639797 30710256 java.util.concurrent.ConcurrentHashMap$HashEntry
10: 606366 29105568 java.util.HashMap$Entry
11: 72730 20521256 [[I
12: 89136 18497696 [Ljava.util.HashMap$Entry;
13: 252946 18212112 com.sun.org.apache.xerces.internal.dom.DeferredTextImpl
14: 236339 15125696 java.lang.ref.Finalizer
15: 233891 14969024 java.net.SocketInputStream
16: 366906 14676240 com.sun.org.apache.xerces.internal.dom.AttributeMap
17: 429913 13757216 java.util.concurrent.ConcurrentLinkedQueue$Node
18: 43319 12129544 [[Ljava.lang.Object;
19: 719233 11507728 java.lang.Object
20: 21649 11246408 [Ljava.util.concurrent.ConcurrentHashMap$HashEntry;
21: 239498 9579920 java.net.Socket
22: 143 9317736 [Lcom.sun.org.apache.xpath.internal.objects.XObject;
23: 229531 9181240 java.net.Inet4Address
24: 57817 8735944 <constMethodKlass>
25: 242443 7758176 java.io.FileDescriptor
The big differencies is the "com.sun.org.apache.xpath.internal.objects.XObject;".
Before and after, the values are:
4: 8218 538714736 [Lcom.sun.org.apache.xpath.internal.objects.XObject;
22: 143 9317736 [Lcom.sun.org.apache.xpath.internal.objects.XObject;
Could this the cause of the full GC that takes long time?
Thanks,
Joan.

Normal is takes long time

Dear Experts, i tried to enable audit option in oracle 10.2 .0 database which is running on windows box, after set this command , i tried to restart the DB with shutdown (only) option.
ALTER SYSTEM SET audit_trail=db SCOPE=SPFILE;
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ALTER SYSTEM SET audit_trail='DB' SCOPE=SPFILE;
Wed Feb 01 12:23:48 2012
Starting background process EMN0
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Wed Feb 01 12:23:49 2012
Shutting down instance: further logons disabled
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Active process 3156 user 'SYSTEM' program 'ORACLE.EXE (SHAD)'
Active process 3416 user 'SYSTEM' program 'ORACLE.EXE (SHAD)'
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Active process 5200 user 'SYSTEM' program 'ORACLE.EXE (SHAD)'
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MMNL absent for 1203 secs; Foregrounds taking over
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Use anothe command prompt and type sqlplus.
For e.g in my system.
C:\Documents and Settings\ranjit>sqlplus
SQLPlus: Release 11.2.0.1.0 Production on Wed Feb 1 13:46:33 2012*
Copyright (c) 1982, 2010, Oracle. All rights reserved.
Enter user-name: sys as sysdba
Enter password:
Connected to:
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With the Partitioning, OLAP, Data Mining and Real Application Testing options
*SQL>
Once you saw this.. type "shu abort;"
This will abruptly shutdown the database. It is safe to run in non production databases however. And while starting up, it will to the recovery(which may take some time again to startup database).
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Restoration take long time

hi,
can any one help me for some issue..
in my UAT daily restration is happen for 5 schemas but while droping one of schema it take lot of time from last three days can any one suggest me what i have to do to resolved the same issue.
and also statustics gathering take long time
please suggest.
Thanks !!!
Vishal Hande.

>
in my UAT daily restration is happen for 5 schemas but while droping one of schema it take lot of time from last three days can any one suggest me what i have to do to resolved the same issue.
>
Do you mean you are doing the export and import? If so, check the session and see what it's waiting on (V$SESSION_WAIT). Or put a trace and see where it's hanging. It may be doing the statistics gathering or waiting on something
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BPM Process chain takes long time to process

We have BI7, Netweaver 2004s on Oracle and SUN Solaris
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Attaching a zip file, please refer the 21 to 26 Analysis screen shot.doc from the zip file
Within the zip file, attaching Normal timings of daily process chains.xls the name explains it.
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We have analyzed:--
1)     The PSA data for BPM process chain for past few days
2)     The info providers for BPM process chain for past few days
3)     The ODS entries for BPM process chain for past few days
4)     The point of failure of BPM process chain for past few days
5)     The overall performance of all the process chains for past few days
6)     The number of requests in BW for this process chain
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I was not able to attach the many screen shots or the info which I had gathered during my analysis. Please advice how do I attach these files
Best Regards,

Hi,
Normally index creation or deletion can take long time in case your database statistics are not updated properly, so can check stat after your data loading is completed and index generation is done, Do creation of database statistics.
Then try to recheck ...
Regards,
Satya

The Application Takes long time to Start

Hello All,
We ar eon Unix->64 Bit-> Essbase 11.1.1.3.
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There were no specific changes done to the application in the recent releases.
I have tried all options 1. Compacating outline, 2. Purging the application log etc. all other applications respond good on this host except this. Usually any application should not take more than 1 to 2 minutes to start up.
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Thanks Jitendra and Prabhas,
I know i have posted this thread sometime back and later I had to jump on a New release, so did not get time to check your inputs.
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Thanks
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Report takes long time for few records

hi frends,
I m facing one problem with my Web based erp application which is developed in .net , in my application when i open the report from my applicaiton , in my temp folder there one file gets created name is "rpt conmgr cache"
bcoz of this for few records also my report takes too much time and opens very slow and it takes long time, and it happens in some of the reports only , other reports are working cool and its not creating any file in temp folder,,, so can u guide me whats this file and what can be the solution for it,
Thanks
Mithun

hi sabhajit,
i have already checked the sql query it is taking less then seconds.
any other steps u want me to check then pls let me know?
thanks mithun

Photo both takes long time to open, what can i do?

photo both takes long time to open, what can i do?

SO do you think we can get a aunser? i just bout my imac u know!!

MVIEW refresh takes long time

Materialized view takes long time to refresh but when i tried select & insert into table it's very fast.
i executed SQL and it takes ust 1min ( total rows is 447 )
but while i refresh the MVIEW it takes 1.5 hrs ( total rows is 447 )
MVIEW configration :-
CREATE MATERIALIZED VIEW EVAL.EVALSEARCH_PRV_LWC
TABLESPACE EVAL_T_S_01
NOCACHE
NOLOGGING
NOCOMPRESS
NOPARALLEL
BUILD DEFERRED
REFRESH FORCE ON DEMAND
WITH PRIMARY KEY
Not sure why so much diffrence

infant_raj wrote:
Materialized view takes long time to refresh but when i tried select & insert into table it's very fast.
i executed SQL and it takes ust 1min ( total rows is 447 )
but while i refresh the MVIEW it takes 1.5 hrs ( total rows is 447 )A SELECT does a consistent read.
A MV refresh does that and also writes database data.
These are not the same thing and cannot be directly compared.
So instead of pointing at the SELECT execution time and asking why the MV refresh is not as fast, look instead WHAT the refresh is doing and HOW it is doing that.
Is the execution plan sane? What events are the top ones for the MV refresh? What are the wait states that contributes most to the processing time of the refresh?
You cannot use the SELECT statement's execution time as a direct comparison metric. The work done by the refresh is more than the work done by the SELECT. You need to determine exactly what work is done by the refresh and whether that work is done in a reasonable time, and how other sessions are impacting the refresh (it could very well be blocked by another session).

Takes Long time for Data Loading.

Hi All,
Good Morning.. I am new to SDN.
Currently i am using the datasource 0CRM_SRV_PROCESS_H and it contains 225 fields. Currently i am using around 40 fields in my report.
Can i hide the remaining fields in the datasource level itself (TCODE : RSA6)
Currently data loading takes more time to load the data from PSA to ODS (ODS 1).
And also right now i am pulling some data from another ODS(ODS 2)(LookUP). It takes long time to update the data in Active data table of the ODS.
Can you please suggest how to improve the performance of dataloading on this Case.
Thanks & Regards,
Siva.

Hi....
Yes...u can hide..........just Check the hide box for those fields.......R u in BI 7.0 or BW...........whatever ........is the no of records is huge?
If so u can split the records and execute............I mean use the same IP...........just execute it with different selections.........
Check in ST04............is there are any locks or lockwaits..........if so...........Go to SM37 >> Check whether any Long running job is there or not.........then check whether that job is progressing or not............double click on the Job >> From the Job details copy the PID..............go to ST04 .....expand the node............and check whether u r able to find that PID there or not.........
Also check System log in SM21............and shortdumps in ST04........
Now to improve performance...........u can try to increase the virtual memory or servers.........if possiblr........it will increase the number of work process..........since if many jobs run at a time .then there will be no free Work prrocesses to proceed........
Regards,
Debjani......

The 0co_om_opa_6 ip in the process chains takes long time to run

Hi experts,
The 0co_om_opa_6 ip in the process chains takes long time to run around 5 hours in production
I have checked the note 382329,
-> where the indexes 1 and 4 are active
-> index 4 was not "Index does not exist in database system ORACLE"- i have assgined to " Indexes on all database systems and ran the delta load in development system, but guess there are not much data in dev it took 2-1/2 hrs to run as it was taking earlier. so didnt find much differnce in performance.
As per the note Note 549552 - CO line item extractors: performance, i have checked in the table BWOM_SETTINGS these are the settings that are there in the ECC system.
-> OLTPSOURCE - is blank
   PARAM_NAME - OBJSELSIZE
   PARAM_VALUE- is blank
-> OLTPSOURCE - is blank
   PARAM_NAME - NOTSSELECT
   PARAM_VALUE- is blank
-> OLTPSOURCE- 0CO_OM_OPA_6
   PARAM_NAME - NOBLOCKING
   PARAM_VALUE- is blank.
Could you please check if any other settings needs to be done .
Also for the IP there is selction criteris for FISCALYEAR/PERIOD from 2004-2099, also an inti is done for the same period as a result it becoming difficult for me to load for a single year.
Please suggest.

The problem was the index 4 was not active in the database level..it was recommended by the SAP team to activate it in se14..however while doing so we face few issues se14 is a very sensitive transaction should be handled carefully ... it should be activate not created.
The OBJSELSIZE in the table BWOM_SETTINGS has to be Marked 'X' to improve the quality as well as the indexe 4 should be activate at the abap level i.e in the table COEP -> INDEXES-> INDEX 4 -> Select the u201Cindex on all database systemu201D in place of u201CNo database indexu201D, once it is activated in the table abap level you can activate the same indexes in the database level.
Be very carefull while you execute it in se14 best is to use db02 to do the same , basis tend to make less mistake there.
Thanks Hope this helps ..

Delete Index in Process Chain Takes long time after SAP BI 7.0 SP 27

After upgrading to SAP BI 7.0 SP 27 Delete index Process & Create index process in Process chain takes long time.
For example : Delete index for 0SD_C03 takes around 55 minutes.
Before SP upgrade it takes around 2 minutes to delete index from 0SD_C03.
Regards
Madhu P Menon

Hi,
Normally index creation or deletion can take long time in case your database statistics are not updated properly, so can check stat after your data loading is completed and index generation is done, Do creation of database statistics.
Then try to recheck ...
Regards,
Satya

Database Connectivity takes long time if one of the Node is down .. ??

Hello All,
Env: 10.2.0.4 on Solaris 10
I have 2 nodes.
When Node1 server is down, it takes long time to connec to the database.
tnsping would give "OK(2050ms)". Below is the tnsalias.
RAC_test =
(DESCRIPTION =
     (ADDRESS = (PROTOCOL = TCP)(HOST=20.268.169.123)(PORT= 1521))
     (ADDRESS = (PROTOCOL = TCP)(HOST=20.268.169.127)(PORT= 1521))
     (LOAD_BALANCE = yes)
          (CONNECT_DATA =
        (SERVICE_NAME = DK.com)
      (FAILOVER_MODE =
        (TYPE = SELECT)
        (METHOD = BASIC)
        (RETRIES = 180)
        (DELAY = 5)
)I put the trace on sqlnet.ora and found that first it pings to the "20.268.169.123",
since the Server is down there will not be any reply and this consumes the delay and
later it would ping "20.268.169.127" and connect to it.
If i keep "20.268.169.127" above "20.268.169.123" in tnsalias, and keep "LOAD_BALANCE=no",
it gets connected very fast, as its directly connecting to Node2. In tnsping i get Ok(40ms).
How do i reduce the connect timing if i use the first step. Why does it take long time for
Oracle Client to understand that the Node1 Server is down ?
TIA,
J J

I hope the IP's you are using in the TNS are Virtual IP's.
You must use Virtual IP's / hostnames for the failover to be quick. If Node 1 is not available then then it's (Node 1's) virtual IP would also get assigned to Node 2 hence all client connections are still able to get a response from the Node Virtual IP address without needing to wait for TCP/IP timeouts. This helps clients to get notified immediately that node 1 is unavailable and the connection tries the 2nd ip/host in the connect descriptor.
Hope this helps.
- Siba

SSRS 2012. ReportServer takes long time to be up.

SSRS 2012 Sp1
Hi guys,
I am using SSRS as my reporting platform, but I have always got the following issue.
SSRS ReportServer takes time to load.
The first time takes long, then less time but only if the ReprotServer web page is continuosly retrived.
HERE the problem:
If the ReprotServer page is not used after a short time (let me say 10 min), the page takes long time to be up again.
I have checked the configuration that is set as for default 12 hours.
Is there a way to speed up the ReportServer opening page time?
Thanks for your help

Hi Fasttrack2,
According to your description, you want to optimize the performance of your report. Right?
In this scenario, when your report page is not active for a short time, it will take long time to render again. This is because the you have the report timeout. You can select "Do not timeout report" in Processing. Please refer to the link below:
SQL Server Reporting Services – Timeout Settings
For the performance issue, it can be many reason cause the report running slowly. Please refer to the articles below to optimize the report:
More tips to improve performance of SSRS reports.
Reporting Services Performance and Optimization
Troubleshooting Reports: Report Performance
If you have any question, please feel free to ask.
Best Regards,
Simon Hou

Export of instance takes long time

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