PQ98256; 4.0.7: Heavy inter-server transactional
work can cause a server to hang
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Abstract
Running a heavy distributed workload across two servers
using interop mode, one of the servers appeared to hang. That is, no new
work was being started, and transactions were not c
Download Description
PQ98256 resolves the following problem:
PROBLEM SUMMARY:
USERS AFFECTED:
All WebSphere Application Server users.
PROBLEM DESCRIPTION:
Heavy inter-server transactional work can cause a server to hang
RECOMMENDATION:
When running a heavy distributed workload across two servers using interop
mode, one of the servers appeared to hang. That is, no new work was being
started, and transactions were not completing successfully.
The problem was caused by the subordinate server holding a lock when
registering back to the superior upon receipt of a transaction.
PROBLEM CONCLUSION:
The CoordinatorImpl class will be updated so that when a transaction is
imported from another server, the registration back to the superior server
will be done while not holding a lock.