APAR status
Closed as program error.
Error description
The export process holds 2 locks for each aggregate until the end of processing. If there is a large amount of data for export, it can cause lock conflicts between export processing and other server processes or client sessions. This can affect the performance of export processing and other server processes or sessions running at the same time. - Messages ANR0379W will be seen in server activity log. 03/25/2011 00:32:42 ANR0379W A server database deadlock situation has been encountered; the lock request for the bf aggregate (superbitfile) id lock, 11505375 will be denied to resolve the deadlock. 03/25/2011 00:32:42 ANR9999D_3434449294 bfRtrv(bfrtrv.c:877) Thread<40>: Error 82 getting sub-bitfile information. (SESSION: 1584, PROCESS: 57) 03/25/2011 00:32:42 ANR9999D_1288456981 XiExportObject(xibf.c:858) Thread<40>: Unknown result code (82) from bfRtrv. (SESSION: 1584, PROCESS: 57) - Message ANR0656W can be used to determine whether files were skipped in the export process. 03/25/2011 00:32:44 ANR0656W EXPORT NODE: Skipped 0 archive files, 1 backup files, and 0 space managed files. (SESSION: 1584, PROCESS: 57) - Messsages ANR0532W and ANR0538I will be seen in server trace taken with IMSORT XI XIDETAIL XISESS ADDMSG flags. ANR0532W smnode.c(3620): Transaction ( 000000000A0FADC8 ) was aborted for session 8442 for node NODE1 (WinNT). ANR0538I A resource waiter has been aborted.~ - "SHOW TXNT" can be used to see a transaction created in xiexport.c holding locks. slot -> 179: Tsn=0:19156403, Resurrected=False, InFlight=True, Distributed=False, Persistent=True, Addr 0000000007029718 Start ThreadId=38, Timestamp=2011-08-09 15:15:31, Creator=xiexport.c(441) After the export process and a client session encounter a lock conflict, both the export and the session stagnate. After RESOURCETIMEOUT limit is reached, the transaction of the session is aborted and the export process immediately continues to run until another lock conflict occurs. Tivoli Storage Manager Versions Affected: Tivoli Storage Manager server 6.x on all platforms. Initial Impact: Low Additional Keywords: zz61 zz62 slow export lock conflict deadlock XiExportObject ANR0538I ANR0532W ANR0379W TSM
Local fix
Performing export during low server activity might help to avoid lock conflicts.
Problem summary
**************************************************************** * USERS AFFECTED: All Tivoli Storage Manager server users of * * the EXPORT command. * **************************************************************** * PROBLEM DESCRIPTION: See ERROR DESCRIPTION. * **************************************************************** * RECOMMENDATION: Apply fixing level when available. This * * problem is currently projected to be * * fixed in levels 6.2.4 and 6.3.2. * * Note that this is subject to change * * at the discretion of IBM. * **************************************************************** *
Problem conclusion
This problem was fixed. Affected platforms: AIX, HP-UX, Solaris, Linux and Windows
Temporary fix
Comments
APAR Information
APAR number
IC78227
Reported component name
TSM SERVER
Reported component ID
5698ISMSV
Reported release
62W
Status
CLOSED PER
PE
NoPE
HIPER
NoHIPER
Special Attention
NoSpecatt
Submitted date
2011-08-19
Closed date
2011-11-17
Last modified date
2013-08-22
APAR is sysrouted FROM one or more of the following:
APAR is sysrouted TO one or more of the following:
Fix information
Fixed component name
TSM SERVER
Fixed component ID
5698ISMSV
Applicable component levels
R61A PSY
UP
R61H PSY
UP
R61L PSY
UP
R61S PSY
UP
R61W PSY
UP
R62A PSY
UP
R62H PSY
UP
R62L PSY
UP
R62S PSY
UP
R62W PSY
UP
R63A PSY
UP
R63H PSY
UP
R63L PSY
UP
R63S PSY
UP
R63W PSY
UP
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Document Information
Modified date:
22 August 2013