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Posted to dev@hbase.apache.org by "Jean-Daniel Cryans (JIRA)" <ji...@apache.org> on 2009/01/21 20:05:59 UTC
[jira] Created: (HBASE-1146) Replace the HRS leases with Zookeeper
Replace the HRS leases with Zookeeper
-------------------------------------
Key: HBASE-1146
URL: https://issues.apache.org/jira/browse/HBASE-1146
Project: Hadoop HBase
Issue Type: Sub-task
Reporter: Jean-Daniel Cryans
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[jira] Updated: (HBASE-1146) Replace the HRS leases with Zookeeper
Posted by "Jean-Daniel Cryans (JIRA)" <ji...@apache.org>.
[ https://issues.apache.org/jira/browse/HBASE-1146?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel ]
Jean-Daniel Cryans updated HBASE-1146:
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Fix Version/s: 0.20.0
> Replace the HRS leases with Zookeeper
> -------------------------------------
>
> Key: HBASE-1146
> URL: https://issues.apache.org/jira/browse/HBASE-1146
> Project: Hadoop HBase
> Issue Type: Sub-task
> Reporter: Jean-Daniel Cryans
> Assignee: Jean-Daniel Cryans
> Fix For: 0.20.0
>
>
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[jira] Resolved: (HBASE-1146) Replace the HRS leases with Zookeeper
Posted by "Jean-Daniel Cryans (JIRA)" <ji...@apache.org>.
[ https://issues.apache.org/jira/browse/HBASE-1146?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel ]
Jean-Daniel Cryans resolved HBASE-1146.
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Resolution: Fixed
I fixed the stuff Statck suggested and committed to trunk.
> Replace the HRS leases with Zookeeper
> -------------------------------------
>
> Key: HBASE-1146
> URL: https://issues.apache.org/jira/browse/HBASE-1146
> Project: Hadoop HBase
> Issue Type: Sub-task
> Reporter: Jean-Daniel Cryans
> Assignee: Jean-Daniel Cryans
> Fix For: 0.20.0
>
> Attachments: hbase-1146.patch
>
>
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[jira] Updated: (HBASE-1146) Replace the HRS leases with Zookeeper
Posted by "Jean-Daniel Cryans (JIRA)" <ji...@apache.org>.
[ https://issues.apache.org/jira/browse/HBASE-1146?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel ]
Jean-Daniel Cryans updated HBASE-1146:
--------------------------------------
Attachment: hbase-1146.patch
Patch that removes the region server leases. Because of the old issue that the region servers may not know on which IP address it should be talking to with, the processing of znodes goes like this:
- The region server tries to create a znode under /hbase/rs/ with it's startcode. If it already exists (because another RS started at the same time and registered first), it gets a new start code and retries those 2 steps.
- The region server reports to the master.
- The master at that point tries to update the znode with the good IP address and at the same time puts a Watcher on it.
- When a region server crashes, ZK notifies the watcher right away and ServerExpirer is ran to process the shutdown.
This patch was tested with 2 region servers and it passes the unit tests.
> Replace the HRS leases with Zookeeper
> -------------------------------------
>
> Key: HBASE-1146
> URL: https://issues.apache.org/jira/browse/HBASE-1146
> Project: Hadoop HBase
> Issue Type: Sub-task
> Reporter: Jean-Daniel Cryans
> Assignee: Jean-Daniel Cryans
> Fix For: 0.20.0
>
> Attachments: hbase-1146.patch
>
>
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[jira] Reopened: (HBASE-1146) Replace the HRS leases with Zookeeper
Posted by "stack (JIRA)" <ji...@apache.org>.
[ https://issues.apache.org/jira/browse/HBASE-1146?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel ]
stack reopened HBASE-1146:
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Resolved by mistake instead of commenting
> Replace the HRS leases with Zookeeper
> -------------------------------------
>
> Key: HBASE-1146
> URL: https://issues.apache.org/jira/browse/HBASE-1146
> Project: Hadoop HBase
> Issue Type: Sub-task
> Reporter: Jean-Daniel Cryans
> Assignee: Jean-Daniel Cryans
> Fix For: 0.20.0
>
> Attachments: hbase-1146.patch
>
>
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[jira] Resolved: (HBASE-1146) Replace the HRS leases with Zookeeper
Posted by "stack (JIRA)" <ji...@apache.org>.
[ https://issues.apache.org/jira/browse/HBASE-1146?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel ]
stack resolved HBASE-1146.
--------------------------
Resolution: Fixed
Hadoop Flags: [Reviewed]
Sitting beside J-D, reviewed the patch. +1 (Just change wrapper so it doesn't create path multiple times and make a util method for figuring whether znode is absolute path or not).
> Replace the HRS leases with Zookeeper
> -------------------------------------
>
> Key: HBASE-1146
> URL: https://issues.apache.org/jira/browse/HBASE-1146
> Project: Hadoop HBase
> Issue Type: Sub-task
> Reporter: Jean-Daniel Cryans
> Assignee: Jean-Daniel Cryans
> Fix For: 0.20.0
>
> Attachments: hbase-1146.patch
>
>
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[jira] Assigned: (HBASE-1146) Replace the HRS leases with Zookeeper
Posted by "Jean-Daniel Cryans (JIRA)" <ji...@apache.org>.
[ https://issues.apache.org/jira/browse/HBASE-1146?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel ]
Jean-Daniel Cryans reassigned HBASE-1146:
-----------------------------------------
Assignee: Jean-Daniel Cryans
> Replace the HRS leases with Zookeeper
> -------------------------------------
>
> Key: HBASE-1146
> URL: https://issues.apache.org/jira/browse/HBASE-1146
> Project: Hadoop HBase
> Issue Type: Sub-task
> Reporter: Jean-Daniel Cryans
> Assignee: Jean-Daniel Cryans
>
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