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https://issues.apache.org/jira/browse/HAWQ-255?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=15057858#comment-15057858
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Ming LI commented on HAWQ-255:
------------------------------
We need to change CHECKPOINT_START_LOCK to a fine grained scope. At the same
time, MirroredLock and LockRelationForResynchronize() need to be removed
because there are useless in hawq now, and also in some scenarios the request
order of this lock and CheckpointStartLock may cause deadlock.
> Checkpoint is blocked by TRANSACTION ABORT for INSERTING INTO a big partition
> table
> -----------------------------------------------------------------------------------
>
> Key: HAWQ-255
> URL: https://issues.apache.org/jira/browse/HAWQ-255
> Project: Apache HAWQ
> Issue Type: Bug
> Reporter: Ming LI
> Assignee: Lei Chang
>
> If at the same time there are other INSERT commands running in parallel, it
> will generates a lot of pg_xlog files. If at this time the system/master
> nodes crashed, it will take a very long time for recovery.
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