|
Problem IC89978
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Status: Closed |
XAER_NOTA RETURNED BY DB2 CONNECT SERVER WHEN TM TRIES TO PREPAR E/COMMIT/ROLLBACK A TRANSACTION IN DISTRIBUTED ENVIRONMENT. |
| product: |
DB2 CONNECT / DB2CONNCT / A10 - DB2 |
| Problem description: |
Under certain conditions, an XAER_NOTA error could be raised if
we have an XA transaction manager that uses dual/multiple
transport model (For example:TM like TUXEDO, MQ) and a DB2
Connect using the concentrator feature being used as a gateway
to a DB2 to zOS server.
At the start of a new transaction, DB2 XA concentrator
associates a worker agent with a particular XA transaction(
single XID). All the work associated with the transaction or XID
is performed by the same agent. At the transaction boundary
(xa_prepare(read only), xa_commit/xa_rollback), the agent is
returned back to the pool. In this APAR situation, agent is not
returned to the pool at the transaction boundary. Later when TM
used the same connection to commit the transaction by sending
xa_prepare (or xa_commit (optimized call) or xa_rollback ), DB2
Connect server used the wrong agent, instead of attaching to
agent associated the XID, same agent was used to server the
another XID, to process XA request. The incorrect processing
resulted XAER_NOTA. |
| Problem Summary: |
****************************************************************
* USERS AFFECTED: *
* The APAR is applicable if TM uses dual/multiple transport *
* model ( For example:TM like TUXEDO, MQ) and DB2 Connection *
* concentrator feature is enabled on DB2 Connect server. *
****************************************************************
* PROBLEM DESCRIPTION: *
* See Error Description *
****************************************************************
* RECOMMENDATION: *
* Upgrade to DB2 10.1 FP3 or newer fix pack *
**************************************************************** |
| Local Fix: |
|
| available fix packs: |
DB2 Version 10.1 Fix Pack 3 for Linux, UNIX, and Windows
DB2 Version 10.1 Fix Pack 4 for Linux, UNIX, and Windows
DB2 Version 10.1 Fix Pack 3a for Linux, UNIX, and Windows
DB2 Version 10.1 Fix Pack 6 for Linux, UNIX, and Windows
|
| Solution |
Problem First Fixed in DB2 Version 10.1 Fix Pack 3 |
| Workaround |
not known / see Local fix |
| BUG-Tracking |
forerunner : APAR is sysrouted TO one or more of the following: IC90209 IC95371
follow-up : |
| Timestamps |
Date - problem reported :
Date - problem closed :
Date - last modified :
| 01.02.2013
27.09.2013
27.09.2013 |
| Problem solved at the following versions (IBM BugInfos) |
|
| Problem solved according to the fixlist(s) of the following version(s) |
| 10.1.0.3
|
 |
| 10.1.0.3
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