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From "Pavel Moravec" <pmora...@redhat.com>
Subject Re: Review Request 17592: QPID-5531 [C++ broker] Set timeout for every DTX transaction
Date Mon, 03 Feb 2014 16:39:34 GMT

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(Updated Feb. 3, 2014, 4:39 p.m.)

Review request for qpid, Chug Rolke, Cliff Jansen, Kim van der Riet, and Steve Huston.


New patch version provided, incorporating Gordon's comment & --dtx-max-timeout option
per https://issues.apache.org/jira/browse/QPID-5531?focusedCommentId=13889327&page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel#comment-13889327

Bugs: QPID-5531

Repository: qpid


If a rogue external Transaction Manager forgets to commit/rollback a prepared DTX, Tpl store
keeps an orphaned enqueue record. To prevent it, every DTX transaction should have a default
timeout after that the broker automatically aborts the transaction.

QPID-5531 adds broker option dtx-default-timeout for that.

My concerns for review:
- is 3600 seconds as default value proper? Isn't it too high?
- ms-sql and/or ms-clfs store part of the patch (recoverTransaction method) has not been even

Diffs (updated)

  /trunk/qpid/cpp/src/qpid/broker/Broker.h 1563872 
  /trunk/qpid/cpp/src/qpid/broker/Broker.cpp 1563872 
  /trunk/qpid/cpp/src/qpid/broker/DtxManager.h 1563872 
  /trunk/qpid/cpp/src/qpid/broker/DtxManager.cpp 1563872 
  /trunk/qpid/cpp/src/qpid/broker/SessionAdapter.cpp 1563872 

Diff: https://reviews.apache.org/r/17592/diff/



Pavel Moravec

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