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https://issues.apache.org/jira/browse/TRAFODION-1648?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=15041903#comment-15041903
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Trina Krug commented on TRAFODION-1648:
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Will fix/change the following 2 things for this JIRA:
1) Disable all non phase 2 transactional operations earlier in the
split/rebalance process. There will be a tiered approach for disabling
requests with the goal to minimize transaction outage and to allow the region
operation to go as quickly as possible. This piece will address :
-- synchronization issues
-- the potential of prolonging a split/rebalance indefinitely
-- missing a transaction changing state due to timing windows
2) Fix data synchronization issues for the active transaction list, commit
pending list and scanners list at split/rebalance time (should be solved by the
above, but for completeness sake it will be addressed)
> Synchronization issues in TrxRegion* coprocessor code for Region
> split/balance
> -------------------------------------------------------------------------------
>
> Key: TRAFODION-1648
> URL: https://issues.apache.org/jira/browse/TRAFODION-1648
> Project: Apache Trafodion
> Issue Type: Bug
> Components: dtm
> Reporter: Trina Krug
> Assignee: Trina Krug
>
> --New transactions become disabled in preClose/preSplit, but other requests
> such as commitRequest are allowed to get through after this point. This
> poses an issue when gathering/writing transaction state at flush time. A
> slight design modification is required.
> --In addition, detailed review and possible modification of shared lists
> should be done in this region split/balance area, including those affected
> above.
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