Disk space transaction and temp table lock in oracle
Hi,
Today many sessions used to get disk space transaction lock and temp table lock and i am seeing these locks first time in my Production database,
is there any workaround to avoid this contension.
Thanks
Prakash GR
Post your version (all 3 decimal places).
Post the SELECT statement and results that have led you to this conclusion.
Other than the fact that you have seen a number what, precisely, is the issue.
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This update, upon booting, has caused my disk space to fill up and my system freezes up. The same happens to my coworker's computer. We both watch the remaining disk space decrease and the "spinning rainbow appears" and we must restart. What do we do?First, empty the Trash if you haven't already done so.
Use a tool such as OmniDiskSweeper (ODS) to explore your volume and find out what's taking up the space. You can delete files with it, but don't do that unless you're sure that you know what you're deleting and that all data is safely backed up. That means you have multiple backups, not just one.
Proceed further only if the problem hasn't been solved.
ODS can't see the whole filesystem when you run it just by double-clicking; it only sees files that you have permission to read. To see everything, you have to run it as root.
Back up all data now.
Install ODS in the Applications folder as usual.
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[INS-32021] Insufficient disk space on this volume for the selected Oracle
Folks,
Hello. I am installing Oracle 11gR2 RAC Grid using Installer whose location is: /home/.../grid/runInstaller.
I am on step 4 of 8 in the Wizard whose contents are as follows:
Oracle Base: /u01/11g_grid
Software Location: /u01/app/grid
Cluster Registry Type: ASM
OSASM Group: dba
When click "next" button I got this error:
" [INS-32021] Insufficient disk space on this volume for the selected Oracle home
Cause - The selected Oracle home was on a volume without enough disk space.
Action - Choose a location for Oracle home that has enough space (minimum of 3,017MB) or free up space on the existing volume. "
I test my "home" directory using the command: [ora11g@rac1 home]$ df -k
Its Ouput:
Filesystem: /dev/sda1 and tmpfs
1K-blocks: 20,308,020 and 848,184
Used: 18,888,968 and 0
Available: 370,816 and 848,184
Use: 99% and 0%
Mounted on : / and /dev/shm
I run another command: [ora11g@rac1 u01]$df -k and got the same output as above.
My questions are:
First, is "Oracle home" the directory "/home/..." or the directory "/u01/..." ?
Second, how to increase the space for the correct directory to be over 3017MB (Minimum) ?
Thanks.Folks,
Hello. Thanks a lot for replying.
I am installing Oracle 11gR2 RAC using 2 Virtual Machines (rac1 and rac2).The Virtual Disk for each VM is 20 GB whose raw device is /dev/sda (partition /dev/sda1 is the same size).
In order to install Grid Infrastructure, I add 5 Hard Disks into the first VM rac1 and 10GB for each Hard Disk.Then create 5 ASM disks respectively as a Disk Group. Let me describe them as follows:
OS Phyysical file: C:\VM_RAC\sharerac\asmdisk1.vmdk (asmdisk2.vmdk asmdisk3.vmdk asmdisk4.vmdk asmdisk5.vmdk)
Corresponding raw devices: /dev/sdb (sdc sdd sde sdf)
Corresponding partition: /dev/sdb1 (sdc1 sdd1 sde1 sdf1)
Corresponding ASM disk: ASMDISK1 (ASMDISK2 ASMDISK3 ASMDISK4 ASMDISK5)
When I run Grid installer step 5 of 8, I select all of 5 ASMDISK as ASM disk group on step 5 of 8 in the Wizard.
The clusterware files are supposed to be stored in the ASM disk group.
But it seems that on step 4 of 8 in the Wizard, the installer install the Oracle Home /u01 into VM rac1 Hard Disk /dev/sda1 and get the above error message - not enough disk space.
My questions are:
First, Why does the Installer store Oracle Home /u01 in /dev/sda1 because it should be in the Disk Group /dev/sdb1 (sdc1 sdd1 sde1 sdf1) ?
Second, Does the Installer go wrongly ?
Third, How to have the Installer store the clasterware files in ASM Disk Group ?
Thanks. -
I'm running the latest OS on my iMac, and I do not use anti-virus software. I have deleted all but a few emails from my Trash and compacted all folders. The Alert message, "There is not enough disk space to download new messages. Try deleting old mail, emptying the Trash folder, and compacting your mail folders, and then try again." continues to appear.
the issue can be caused by a lack of physical disk space, a lack of quota in the disk (user account full), file locking and contention (such a an anti virus or backup program trying to access the same space at the same time. Time machine features in some peoples problems) or as the message suggest large Thunderbird files. As you have looked at the Thunderbird issues, perhaps it is time to look t the broader picture.
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Issue on space . Disk space increases and decreases automatically
Hi All,
In our QA environment for past 2 days we are facing issue on space . some unusual behaviour. Taken threaddumps at that time and found the issue
"172.30.104.53 [1373723166026] <closed>" daemon prio=3 tid=0x0000000101dca800 nid=0x135f in Object.wait() [0xfffffffd8a9ff000]
java.lang.Thread.State: WAITING (on object monitor)
at java.lang.Object.wait(Native Method)
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Please let me know where exact issue on thread.If you are seeing daily increases and decrease in your disk utilization (for example it increases during the day/overnaight but in the morning the disk space has recovered what you are seeing is the impact of Tar optimization.
The Tar Persistence manager is the underlying storage mechanism for CRX. Data is stored in append only tar files. This means the when you update a node or property the new values are written to the Tar files, the indexes are updated to point to the new location, but the old data is also still left in the file. This mechanism allows for a much faster write mechanism. So the more you frequently you update existing content in your repository the larger you Tar files becomes.
There is a process called Tar File Optimization that by default is scheduled to run from 2 AM to 5 AM server time. This process identifies all the orphaned data in the Tar files and deletes, there by reducing the size of the tar files on disk.
So if you are in heavy content migration mode, or moving large amounts of content between instances you can see large swings in your disk space utilization as the Tar file balloons up during the day and then shrinks back down over night. In some cases depending on how large your repository is the 3 hours allotted by default is not sufficent to complete the optimizaiton so you may not be recovering all your disk space. During normal production operations this will normally average out over time and the 3 hour window is enough. However during periods of heavy usage, especially during QA or content migration you may find that your tar files are ever increasing in size. If that happens you need pick a period of time over say a weekend and trigger the Tar File optimization to run until complete to recover as much of your disk space as possible.
See http://helpx.adobe.com/crx/kb/TarPMOptimization.html for details on Tar File Optimization.
As someone else pointed out you may also have an issue with your data store which requires a different clean up method.
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Hi, I have run into repeated occurrences of the deadlock graph at the bottom of this post and have a few questions about it:
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2. Under what circumstances would something hold a row exclusive table lock (SX) and want to upgrade that to a share row exclusive table lock (SSX)?
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A couple of notes:
- the cxml_foldercontent.structuredDataId FK column has an index on it already
Deadlock graph:
---------Blocker(s)-------- ---------Waiter(s)---------
Resource Name process session holds waits process session holds waits
TX-003a0011-000003d0 44 548 X 30 542 X
TM-0000be63-00000000 30 542 SX 44 548 SX SSX
session 548: DID 0001-002C-000002D9 session 542: DID 0001-001E-00000050
session 542: DID 0001-001E-00000050 session 548: DID 0001-002C-000002D9
Rows waited on:
Session 542: obj - rowid = 0000BE63 - AAAL5jAAGAAA6tZAAK
(dictionary objn - 48739, file - 6, block - 240473, slot - 10)
Session 548: no row
Information on the OTHER waiting sessions:
Session 542:
pid=30 serial=63708 audsid=143708731 user: 41/CASCADE
O/S info: user: cascade, term: unknown, ospid: 1234, machine:
program: JDBC Thin Client
application name: JDBC Thin Client, hash value=2546894660
Current SQL Statement:
update cascade.cxml_foldercontent set name=:1 , lockId=:2 , isCurrentVersion=:3 , versionDate=:4 , metadataId=:5 , permissionsId=:6 , workflowId=:7 , isWorkingCopy=:8 , parentFolderId=:9 , relativeOrder=:10 , cachePath=:11 , isRecycled=:12 , recycleRecordId=:13 , workflowComment=:14 , draftUserId=:15 , siteId=:16 , prevVersionId=:17 , nextVersionId=:18 , originalCopyId=:19 , workingCopyId=:20 , displayName=:21 , title=:22 , summary=:23 , teaser=:24 , keywords=:25 , description=:26 , author=:27 , startDate=:28 , endDate=:29 , reviewDate=:30 , metadataSetId=:31 , expirationNoticeSent=:32 , firstExpirationWarningSent=:33 , secondExpirationWarningSent=:34 , expirationFolderId=:35 , maintainAbsoluteLinks=:36 , xmlId=:37 , structuredDataDefinitionId=:38 , pageConfigurationSetId=:39 , pageDefaultConfigurationId=:40 , structuredDataId=:41 , pageStructuredDataVersion=:42 , shouldBeIndexed=:43 , shouldBePublished=:44 , lastDatePublished=:45 , lastPublishedBy=:46 , draftOriginalId=:47 , contentTypeId=:48 where id=:49
End of information on OTHER waiting sessions.
Current SQL statement for this session:
delete from cascade.cxml_structureddata where id=:1Mohamed Houri wrote:
What is important for a foreign key is to be indexed (of course if the parent table is deleted/merged/updated, or if a performance reason imposes it). Wether this index is unique or not doesn't matter (as far as i know).But, you should ask your self the following question : what is the meaning of having a 1 to 1 relationship between a parent and a child table ? if you succeed to create a unique index on your FK then this means that for each PK value corresponds at most one FK value!! Isn't it? is this what you want to have?Thanks, as I mentioned above, cxml_structureddata is actually the child table of cxml_foldercontent with 1 or more records' owningEntityId referring to rows in cxml_foldercontent. The reason for the FK on cxml_foldercontent.structuredDataId is a little ambiguous but it explained above.
Will a TX-enqueue held on mode X always be waited on by another TX-enqueue row lock X? Or can it be waited on by an Exclusive (X) table lock?Not really clear. Sorry, are you saying my question is unclear or it's not clear why type of eXclusive lock session 542 is trying to acquire in the first line of the trace? Do you think that the exclusive lock being held by session 548 in the first line is on rows in cxml_foldercontent (due to the ON DELETE SET NULL on these child rows) or rows in the cxml_structureddata that it's actually deleting?
Is there any way for me to tell for certain?
The first enqueue is a TX (Transaction Enqueue) held by session 548 on mode X (exclusive). This session represents the blocking session. At the same time the locked row is waited on by the blocked session (542) and the wait is on mode X (exclusive). So put it simply, we have here session 542 waiting for session 548 to release it lock (may be by commiting/roll backing). At this step we are not in presence of a deadlock.
The second line of the deadlock graph shows that session 542 is the blocking session and it is doing a TM enqueue (DML lock) held on SX(Shared eXclusive). While session 548(which is the waiting session) is blocked by session 542 and is waiting on SSX mode.
Here we see that 548 is blocking session 542 via a TX enqueue and session 542 is blocking session 548 via a TM enqueue ---> That is the deadlock. Oracle will then immediately choose arbitrarlly a victim session (542 or 548) and kill its process letting the remaining session continuing its work.
That is your situation explained here.Thanks, any idea why session 542 (the DELETE from cxml_structureddata) would be trying to upgrade it's lock to SSX? Is this lock mode required to update a child tables foreign key columns when using an ON DELETE SET NULL trigger? Having read more about SSX, I'm not sure I understand in what cases it's used. Is there a way for me to confirm with 100% certainty specifically which tables in the TM enqueue locks are being held on? Is session 548 definitely trying to acquire an SSX mode on my cxml_foldecontent table or could it be cxml_structureddata table?
(a) Verify that all your FK are indexed (be carreful that the FK columns should be at the leading edge of the index)Thanks, we've done this already. When you say the "leading edge" you mean for a composite index? These indexes are all single column.
(b) Verify the logic of the DML against cxml_foldercontentCan you be more specific? Any idea what I'm looking for? -
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http://www.macupdate.com/info.php/id/15667/applejack
After installing, reboot holding down CMD+s, (+s), then when the DOS like prompt shows, type in...
applejack AUTO
Then let it do all 6 of it's things.
At least it'll eliminate some questions if it doesn't fix it.
The 6 things it does are...
Correct any Disk problems.
Repair Permissions.
Clear out Cache Files.
Repair/check several plist files.
Dump the VM files for a fresh start.
Trash old Log files.
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I have a need to use a temp table for a page, and I'm finding
that temporary tables are not temporary when creating them via CF.
The temporary table is not being dropped when the page is
done processing, and what's worse is that when running the page
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requests, defeating the whole purpose of a "private" temporary
table for each request of the table.
I have a feeling this has something to do with the way CF
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bother me; I can always drop it manually. However the fact that I
can request the page on one computer, then go to another computer
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deal breaker.
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I think the reason why the temp tables are not being dropped
automatically
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oc.Open();
for (int i = 0; i < xImageId.Count; i++)
// Create the oracle adapter using a SQL which will not return any actual rows just the structure
OleDbDataAdapter da =
new OleDbDataAdapter("SELECT BUSINESS_UNIT, INVOICE, ASSIGNMENT_ID, END_DT, RI_TIMECARD_ID, IMAGE_ID, FILENAME, BARCODE_LABEL_ID, " +
"DIRECT_INVOICING, EXCLUDE_FLG, DTTM_CREATED, DTTM_MODIFIED, IMAGE_DATA, PROCESS_INSTANCE FROM sysadm.PS_RI_INV_PDF_MERG WHERE 1 = 2", oc);
// Create a data set
DataSet ds = new DataSet("documents");
da.Fill(ds, "documents");
// Loop through invoices and write to oracle
string[] sInvoices = invoiceNumber.Split(',');
foreach (string sInvoice in sInvoices)
// Create a data set row
DataRow dr = ds.Tables["documents"].NewRow();
... map the data
// Populate the dataset
ds.Tables["documents"].Rows.Add(dr);
// Create the insert command
string insertCommandText =
"INSERT /*+ append */ INTO PS_table " +
"(SEQ_NBR, BUSINESS_UNIT, INVOICE, ASSIGNMENT_ID, END_DT, RI_TIMECARD_ID, IMAGE_ID, FILENAME, BARCODE_LABEL_ID, DIRECT_INVOICING, " +
"EXCLUDE_FLG, DTTM_CREATED, DTTM_MODIFIED, IMAGE_DATA, PROCESS_INSTANCE) " +
"VALUES (INV.nextval, :BUSINESS_UNIT, :INVOICE, :ASSIGNMENT_ID, :END_DT, :RI_TIMECARD_ID, :IMAGE_ID, :FILENAME, " +
":BARCODE_LABEL_ID, :DIRECT_INVOICING, :EXCLUDE_FLG, :DTTM_CREATED, :DTTM_MODIFIED, :IMAGE_DATA, :PROCESS_INSTANCE)";
// Add the insert command to the data adapter
da.InsertCommand = new OleDbCommand(insertCommandText);
da.InsertCommand.Connection = oc;
// Add the params to the insert
da.InsertCommand.Parameters.Add(":BUSINESS_UNIT", OleDbType.VarChar, 5, "BUSINESS_UNIT");
da.InsertCommand.Parameters.Add(":INVOICE", OleDbType.VarChar, 22, "INVOICE");
da.InsertCommand.Parameters.Add(":ASSIGNMENT_ID", OleDbType.VarChar, 15, "ASSIGNMENT_ID");
da.InsertCommand.Parameters.Add(":END_DT", OleDbType.Date, 0, "END_DT");
da.InsertCommand.Parameters.Add(":RI_TIMECARD_ID", OleDbType.VarChar, 10, "RI_TIMECARD_ID");
da.InsertCommand.Parameters.Add(":IMAGE_ID", OleDbType.VarChar, 8, "IMAGE_ID");
da.InsertCommand.Parameters.Add(":FILENAME", OleDbType.VarChar, 80, "FILENAME");
da.InsertCommand.Parameters.Add(":BARCODE_LABEL_ID", OleDbType.VarChar, 18, "BARCODE_LABEL_ID");
da.InsertCommand.Parameters.Add(":DIRECT_INVOICING", OleDbType.VarChar, 1, "DIRECT_INVOICING");
da.InsertCommand.Parameters.Add(":EXCLUDE_FLG", OleDbType.VarChar, 1, "EXCLUDE_FLG");
da.InsertCommand.Parameters.Add(":DTTM_CREATED", OleDbType.Date, 0, "DTTM_CREATED");
da.InsertCommand.Parameters.Add(":DTTM_MODIFIED", OleDbType.Date, 0, "DTTM_MODIFIED");
da.InsertCommand.Parameters.Add(":IMAGE_DATA", OleDbType.Binary, System.Convert.ToInt32(filedata.Length), "IMAGE_DATA");
da.InsertCommand.Parameters.Add(":PROCESS_INSTANCE", OleDbType.VarChar, 10, "PROCESS_INSTANCE");
// Update the table
da.Update(ds, "documents");Here is what Oracle is showing as blocking locks and the SQL that has been identified with each of the SIDS. Not sure why there is contention. There are no triggers or joined tables in this piece of code.
Here is the SQL all of the SIDs below are running:
INSERT INTO sysadm.PS_RI_INV_PDF_MERG (SEQ_NBR, BUSINESS_UNIT, INVOICE, ASSIGNMENT_ID, END_DT, RI_TIMECARD_ID, IMAGE_ID, FILENAME, BARCODE_LABEL_ID, DIRECT_INVOICING, EXCLUDE_FLG, DTTM_CREATED, DTTM_MODIFIED, IMAGE_DATA, PROCESS_INSTANCE) VALUES (SYSADM.INV_PDF_MERG.nextval,
:BUSINESS_UNIT, :INVOICE, :ASSIGNMENT_ID, :END_DT, :RI_TIMECARD_ID, :IMAGE_ID, :FILENAME, :BARCODE_LABEL_ID, :DIRECT_INVOICING, :EXCLUDE_FLG, :DTTM_CREATED, :DTTM_MODIFIED, :IMAGE_DATA, :PROCESS_INSTANCE)
SID 1452 (BTSUSER,BIZTPRDI,BTSNTSvc64.exe) in instance FSLX1 is blocking SID 1150 (BTSUSER,BIZTPRDI,BTSNTSvc64.exe) in instance FSLX1
SID 1452 (BTSUSER,BIZTPRDI,BTSNTSvc64.exe) in instance FSLX1 is blocking SID 1452 (BTSUSER,BIZTPRDI,BTSNTSvc64.exe) in instance FSLX1
SID 1452 (BTSUSER,BIZTPRDI,BTSNTSvc64.exe) in instance FSLX1 is blocking SID 1156 (BTSUSER,biztprdi,BTSNTSvc64.exe) in instance FSLX3
SID 1452 (BTSUSER,BIZTPRDI,BTSNTSvc64.exe) in instance FSLX1 is blocking SID 6 (BTSUSER,BIZTPRDI,BTSNTSvc64.exe) in instance FSLX2
SID 1452 (BTSUSER,BIZTPRDI,BTSNTSvc64.exe) in instance FSLX1 is blocking SID 1726 (BTSUSER,BIZTPRDI,BTSNTSvc64.exe) in instance FSLX2
SID 1452 (BTSUSER,BIZTPRDI,BTSNTSvc64.exe) in instance FSLX1 is blocking SID 2016 (BTSUSER,biztprdi,BTSNTSvc64.exe) in instance FSLX2 -
MacBook Pro Disk Space Question and Time Machine
Hi all,
I know this is probably a "noob" question, but I have been backing up my laptop (2009 Mac OS X 10.6.8) onto an external hard drive set up for Time Machine, and now my MacBook Pro only has 1.15 GB available of free space after the many years of usage and saving things onto it (such as images, movies, etc.). I had a question: Are these files backed up onto Time Machine and so can I delete them from my laptop without losing them? I am concerned about losing them and am not sure how Time Machine really works; if I delete these files from my laptop in order to free up space, then backup my computer onto Time Machine, will they be deleted from the Time Machine drive also?? I need to free up a lot of space on my laptop but also don't want to lose any pictures and videos from over the years.
Thanks in advance.570ad
My question is, how do I effectively "copy over" files onto my new external hard drive? Is it as easy as connecting the hard drive via usb
Easy as drag and drop, yes indeed. Could almost do it with your eyes closed.
Entire user account, ....no, just get all your files, you created, saved, made, work on ALL VITAL DATA you "dont dare lose" etc. drag it over, make files in the HD showing where things are, etc.
There are of course a 1000 ways to organize folders and data on external HD, ..pick what suits you.
Keep it simple.
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