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Title
Copy command fails in Shareplex 6.0.1 - Read 0 bytes from file -
Description
Copy command fails after running after several hours as it ran out of memory
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Cause
Looking at the source sync server log, it shows that the copy command ran out of memory:
sync server log looks like this and can be found in the var/log directory on the source
sync_svr_102_<SID>_hera_p17350702.log
Mon May 12/10:56:43.319:: ENTER SyncFileDesc::read_data
Mon May 12/10:56:43.319:: Request for 16384 bytes from file
Mon May 12/10:56:43.319:: Read 0 bytes from file
Mon May 12/10:56:43.319:: EXIT SyncFileDesc::read_data
Mon May 12/10:56:43.319:: ENTER SyncFile::closeFile
Mon May 12/10:56:43.319:: Closing file: /dwtsp/splex/prod/.app-modules/sp_sync_svr
Mon May 12/10:56:43.319:: EXIT SyncFile::closeFile
Mon May 12/10:56:43.319:: cksum : 457814005 12122359
Note Request for 16384 bytes from file but as memory was not available it Read 0 bytes from file -
Resolution
The copy command uses dynamic memory (i.e ulimit -d value), so to try to get around this problem increase the ulimit -d value (view with ulimit -aS and ulimit -aH)