Fixes are available
8.5.0.2: WebSphere Application Server V8.5 Fix Pack 2
8.0.0.6: WebSphere Application Server V8.0 Fix Pack 6
7.0.0.29: WebSphere Application Server V7.0 Fix Pack 29
8.0.0.7: WebSphere Application Server V8.0 Fix Pack 7
8.0.0.8: WebSphere Application Server V8.0 Fix Pack 8
7.0.0.31: WebSphere Application Server V7.0 Fix Pack 31
7.0.0.33: WebSphere Application Server V7.0 Fix Pack 33
8.0.0.9: WebSphere Application Server V8.0 Fix Pack 9
7.0.0.35: WebSphere Application Server V7.0 Fix Pack 35
8.0.0.10: WebSphere Application Server V8.0 Fix Pack 10
7.0.0.37: WebSphere Application Server V7.0 Fix Pack 37
8.0.0.11: WebSphere Application Server V8.0 Fix Pack 11
7.0.0.39: WebSphere Application Server V7.0 Fix Pack 39
8.0.0.12: WebSphere Application Server V8.0 Fix Pack 12
7.0.0.41: WebSphere Application Server V7.0 Fix Pack 41
8.0.0.13: WebSphere Application Server V8.0 Fix Pack 13
7.0.0.43: WebSphere Application Server V7.0 Fix Pack 43
8.0.0.14: WebSphere Application Server V8.0 Fix Pack 14
7.0.0.45: WebSphere Application Server V7.0 Fix Pack 45
8.0.0.15: WebSphere Application Server V8.0 Fix Pack 15
7.0.0.29: Java SDK 1.6 SR13 FP2 Cumulative Fix for WebSphere Application Server
7.0.0.45: Java SDK 1.6 SR16 FP60 Cumulative Fix for WebSphere Application Server
7.0.0.31: Java SDK 1.6 SR15 Cumulative Fix for WebSphere Application Server
7.0.0.35: Java SDK 1.6 SR16 FP1 Cumulative Fix for WebSphere Application Server
7.0.0.37: Java SDK 1.6 SR16 FP3 Cumulative Fix for WebSphere Application Server
7.0.0.39: Java SDK 1.6 SR16 FP7 Cumulative Fix for WebSphere Application Server
7.0.0.41: Java SDK 1.6 SR16 FP20 Cumulative Fix for WebSphere Application Server
7.0.0.43: Java SDK 1.6 SR16 FP41 Cumulative Fix for WebSphere Application Server
APAR status
Closed as program error.
Error description
When using the mbean purgePoolContents to purge the connection pool, it destroys all of the connections in the pool as designed, but destroying all the connections and then having the connection pool return to a steady state can cause the database to crash.
Local fix
N/A
Problem summary
**************************************************************** * USERS AFFECTED: All users of IBM WebSphere Application * * Server using JCA mbean * * purgePoolContents. * **************************************************************** * PROBLEM DESCRIPTION: Purging all connections in a * * connection pool can cause extra * * stress on an already overload * * database resulting in a crash. * **************************************************************** * RECOMMENDATION: * **************************************************************** numConnectionsToRemain was added to the mbean purgePoolContents to allow customers to reduce the connection pool down to a safe level without destorying all connections. Example using purgePoolContents and numConnectionsToRemain, start wsadmin set name [list Default Datasource] set objectName [$AdminControl queryNames *:name=$name,*] $AdminControl invoke $objectName showPoolContents (You should have more then one connection in the pool, assuming multiple applications running) set objNameString [$AdminControl completeObjectName WebSphere:name=$name,*] set objName [java::new javax.management.ObjectName $objNameString] set parms [java::new {java.lang.Integer[]} 1 1] (purge down to 1 connection) set signature [java::new {java.lang.String[]} 1 java.lang.Integer] $AdminControl invoke_jmx $objName purgePoolContents $parms $signature $AdminControl invoke $objectName showPoolContents (You should have one connection in the pool assuming for this example that your applications are not running. If your applications are still running, the connection pool would be purged down to one connection and then increase in size back up to maximum connection if needed)
Problem conclusion
numConnectionsToRemain for purgePoolContents allows a for better control for purging connection. The fix for this APAR is currently targeted for inclusion in fix packs 7.0.0.29, 8.0.0.6 and 8.5.0.2. Please refer to the Recommended Updates page for delivery information: http://www.ibm.com/support/docview.wss?rs=180&uid=swg27004980
Temporary fix
Comments
APAR Information
APAR number
PM75183
Reported component name
WEBS APP SERV N
Reported component ID
5724H8800
Reported release
700
Status
CLOSED PER
PE
NoPE
HIPER
NoHIPER
Special Attention
NoSpecatt
Submitted date
2012-10-17
Closed date
2013-01-07
Last modified date
2013-01-07
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
WEBS APP SERV N
Fixed component ID
5724H8800
Applicable component levels
R700 PSY
UP
R800 PSY
UP
R850 PSY
UP
Document Information
Modified date:
29 October 2021