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https://issues.apache.org/jira/browse/HBASE-5344?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel
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Phabricator updated HBASE-5344:
-------------------------------
Attachment: D1605.3.patch
mbautin updated the revision "[jira] [HBASE-5344] [89-fb] Scan unassigned
region directory on master failover".
Reviewers: Kannan, Karthik, Liyin, JIRA, stack
Attached the wrong diff to this revision. Restoring its old state rebased on
recent changes.
REVISION DETAIL
https://reviews.facebook.net/D1605
AFFECTED FILES
src/main/java/org/apache/hadoop/hbase/executor/RegionTransitionEventData.java
src/main/java/org/apache/hadoop/hbase/ipc/HBaseServer.java
src/main/java/org/apache/hadoop/hbase/master/BaseScanner.java
src/main/java/org/apache/hadoop/hbase/master/DirectRegionServerScanner.java
src/main/java/org/apache/hadoop/hbase/master/HMaster.java
src/main/java/org/apache/hadoop/hbase/master/ProcessRegionOpen.java
src/main/java/org/apache/hadoop/hbase/master/RegionManager.java
src/main/java/org/apache/hadoop/hbase/master/RootScanner.java
src/main/java/org/apache/hadoop/hbase/master/ServerManager.java
src/main/java/org/apache/hadoop/hbase/master/ZKUnassignedWatcher.java
src/main/java/org/apache/hadoop/hbase/master/handler/MasterOpenRegionHandler.java
src/test/java/org/apache/hadoop/hbase/master/TestRegionStateOnMasterFailure.java
> [89-fb] Scan unassigned region directory on master failover
> -----------------------------------------------------------
>
> Key: HBASE-5344
> URL: https://issues.apache.org/jira/browse/HBASE-5344
> Project: HBase
> Issue Type: Bug
> Reporter: Mikhail Bautin
> Assignee: Mikhail Bautin
> Attachments: D1605.1.patch, D1605.2.patch, D1605.3.patch
>
>
> In case the master dies after a regionserver writes region state as OPENED or
> CLOSED in ZK but before the update is received by master and written to meta,
> the new master that comes up has to pick up the region state from ZK and
> write it to meta. Otherwise we can get multiply-assigned regions.
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