IBM Support

Plugin failed to find affinity server due to mixed clone id separator

Troubleshooting


Problem

If WAS cluster members use the wrong clone id separator, the plugin will fail to recognize the affinity server.

Symptom

Please note: In this situation, the plugin trace snippet displays the clone id separator as "+". The failure statement following indicates that the CloneSeparatorChange within the plugin-cfg.xml file was set to false (telling the binary to look for a colon ":").

TRACE: ws_common: websphereHandleSessionAffinity: Checking the JSESSIONID in cookie: 0000P5u0KOQF8RUX4CGRTxeXXXX+xxxx1pm1
DEBUG: ws_common: websphereParseCloneID: Parsing clone ids from '0000P5u0KOQF8RUX4CGRTxeXXXX+xxxx1pm1'
TRACE: ws_common: websphereParseCloneID: Returning list of clone ids
TRACE: ws_server_group: serverGroupFindClone: Looking for clone
...
TRACE: ws_server_group: serverGroupFindClone: Failed to find server that matched the clone id

Cause

The default value for CloneSeparatorChange is false which tells the binary to expect a colon ":" as the separator. If CloneSeparatorChange is set to true, then the plugin will look for a plus "+".

Resolving The Problem

Clients should be aware of the CloneSeparatorChange value within the plugin-cfg.xml file. This will dictate what the binary will look for within the jsessionid. This value is set for the cluster and impacts all members. Therefore, affinity will be affected if the jsessionid presents a value that is contrary to the CloneSeparatorChange setting.

Please refer to below infocenter link for details about two related custom property: CloneSeparatorChange

[{"Product":{"code":"SSEQTP","label":"WebSphere Application Server"},"Business Unit":{"code":"BU053","label":"Cloud & Data Platform"},"Component":"Plug-in","Platform":[{"code":"PF002","label":"AIX"},{"code":"PF010","label":"HP-UX"},{"code":"PF016","label":"Linux"},{"code":"PF027","label":"Solaris"},{"code":"PF033","label":"Windows"}],"Version":"8.5.5;8.5;8.0;7.0;6.1","Edition":"","Line of Business":{"code":"LOB45","label":"Automation"}}]

Document Information

Modified date:
15 June 2018

UID

swg21657940