Fixes are available
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
6.1.0.47: WebSphere Application Server V6.1 Fix Pack 47
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
6.1.0.47: Java SDK 1.5 SR16 Cumulative Fix for WebSphere Application Server
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
Obtain the fix for this APAR.
APAR status
Closed as program error.
Error description
The plugin is in a mutex deadlock: one thread owns the configuration mutex and is waiting on the the esi mutex, and there is another thread that owns the esi mutex and is wating on the configuration mutex. All incoming requests will try to get the configuration mutex, so they will all get hung up.
Local fix
Turning the esi invalidator off bypasses the problem. <Property Name="ESIInvalidationMonitor" Value="false"/>
Problem summary
**************************************************************** * USERS AFFECTED: IBM WebSphere Application Server webserver * * plugin users * **************************************************************** * PROBLEM DESCRIPTION: Deadlock can occur when reloading * * configuration and processing requests * **************************************************************** * RECOMMENDATION: * **************************************************************** If there are frequent configuration changes such that the plugin configuration is being reload and requests are being processed, a deadlock situation can occur where the processing request and the reload are both waiting for a semaphore. This will only occur if ESI caching is enabled.
Problem conclusion
Change has been made to avoid the deadlock situation. If you are disabling ESI caching, it is recommended to stop and restart the webserver instead of a dynamic reload. APAR PM75801 is currently targeted for inclusion in Fick Packs 7.0.0.29, 8.0.0.6 and 8.5.5 of WebSphere Application Server. The fix will also be delivered as sysrouted APAR PM81813 in WebSphere Application Server V6.1 Fix Pack 6.1.0.47 for z/OS. Please refer to URL: //www.ibm.com/support/docview.wss?rs=404&uid=swg27006970 for Fix Pack availability.
Temporary fix
Comments
APAR Information
APAR number
PM75801
Reported component name
WEBSPHERE FOR Z
Reported component ID
5655I3500
Reported release
700
Status
CLOSED PER
PE
NoPE
HIPER
NoHIPER
Special Attention
NoSpecatt
Submitted date
2012-10-24
Closed date
2013-01-04
Last modified date
2013-07-03
APAR is sysrouted FROM one or more of the following:
APAR is sysrouted TO one or more of the following:
PM80013 PM81813
Fix information
Fixed component name
WEBSPHERE FOR Z
Fixed component ID
5655I3500
Applicable component levels
R700 PSY UK94926
UP13/06/20 P F306
Fix is available
Select the PTF appropriate for your component level. You will be required to sign in. Distribution on physical media is not available in all countries.
Document Information
Modified date:
29 October 2021