[
https://issues.apache.org/jira/browse/ZOOKEEPER-3127?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=16605011#comment-16605011
]
Hudson commented on ZOOKEEPER-3127:
-----------------------------------
SUCCESS: Integrated in Jenkins build ZooKeeper-trunk #177 (See
[https://builds.apache.org/job/ZooKeeper-trunk/177/])
ZOOKEEPER-3127: Fixing potential data inconsistency due to update last (hanm:
rev e501d9cc67fbaa6e825292fd838711259b6c9789)
* (edit) src/java/main/org/apache/zookeeper/server/ZKDatabase.java
* (edit) src/java/main/org/apache/zookeeper/server/DataTree.java
* (edit)
src/java/test/org/apache/zookeeper/server/quorum/QuorumPeerMainTest.java
* (add)
src/java/test/org/apache/zookeeper/server/quorum/FuzzySnapshotRelatedTest.java
> Fixing potential data inconsistency due to update last processed zxid with
> partial multi-op txn
> -----------------------------------------------------------------------------------------------
>
> Key: ZOOKEEPER-3127
> URL: https://issues.apache.org/jira/browse/ZOOKEEPER-3127
> Project: ZooKeeper
> Issue Type: Bug
> Components: server
> Affects Versions: 3.5.4, 3.6.0, 3.4.13
> Reporter: Fangmin Lv
> Assignee: Fangmin Lv
> Priority: Critical
> Labels: pull-request-available
> Fix For: 3.6.0
>
> Time Spent: 1h 10m
> Remaining Estimate: 0h
>
> Found this issue while checking the code for another issue, this is a
> relatively rare case which we haven't seen it on prod so far.
> Currently, the lastProcessedZxid is updated when applying the first txn of
> multi-op, if there is a snapshot in progress, it's possible that the zxid
> associated with the snapshot only include partial of the multi op.
> When loading snapshot, it will only load the txns after the zxid associated
> with snapshot file, which could data inconsistency due to missing sub txns.
> To avoid this, we only update the lastProcessedZxid when the whole multi-op
> txn is applied to DataTree.
--
This message was sent by Atlassian JIRA
(v7.6.3#76005)
