Long return times when removing backup mode due to JournalRecords Clearer

Problem

When removing EV from backup mode, Storage Delete must stop a number of worker threads in preparation to take the Vault Store(s) out of backup mode. If the JournalRecords Clearer thread takes longer than 5 minutes to close, the thread is terminated and the Vault Store is not removed from Backup mode.

Error Message

 When Dtracing the StorageDelete process while taking the Vault Store(s) out of Backup Mode, the following can be observed:

 
(StorageDelete) <4652> EV:L CMngStgDelThrdsForBkpMode::StopThreads (Entry) | 
(StorageDelete) <4652> EV:M CMngStgDelThrdsForBkpMode::StopThreads|Waiting for the Delete Vault thread to stop 
(StorageDelete) <4652> EV:L CThread::WaitForThreadExit (Entry) | 
(StorageDelete) <4652> EV:M CThread::WaitForThreadExit (Exit) | 
(StorageDelete) <4652> EV:M CMngStgDelThrdsForBkpMode::StopThreads|Waiting for the NTFS to Centera Migrator thread to stop 
(StorageDelete) <4652> EV:L CThread::WaitForThreadExit (Entry) | 
(StorageDelete) <4652> EV:M CThread::WaitForThreadExit (Exit) | 
(StorageDelete) <4652> EV:M CMngStgDelThrdsForBkpMode::StopThreads|Waiting for the Folder Cleanup thread to stop 
(StorageDelete) <4652> EV:L CThread::WaitForThreadExit (Entry) | 
(StorageDelete) <4652> EV:M CThread::WaitForThreadExit (Exit) | 
(StorageDelete) <4652> EV:M CMngStgDelThrdsForBkpMode::StopThreads|Waiting for the JournalRecords Clearer thread to stop 
(StorageDelete) <4652> EV:L CThread::WaitForThreadExit (Entry) | 
(StorageDelete) <4652> EV:H CThread::WaitForThreadExit|Thread has not exited after time-out interval of 300000 milliseconds| 
(StorageDelete) <4652> EV:H CThread::WaitForThreadExit|Thread terminated with status of TRUE 
(StorageDelete) <4652> EV:M CThread::WaitForThreadExit (Exit) | 

Cause

 The JournalRecords Clearer thread has a hard coded timeout of 300,000 milliseconds (5 minutes). Factors that could affect the amount of time this thread takes to stop are the following:

  • Number of records in the VaultStoreDatabase.JournalDelete table
  • SQL table fragmentation

 

Solution

This issue has been addressed as part of the following release:

Enterprise Vault 10.0.3 Cumulative Hotfix 2 Release
http://www.symantec.com/docs/TECH205731

Enterprise Vault 10.0.4 - Release Details
http://www.symantec.com/docs/DOC6317


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