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Posted to reviews@ambari.apache.org by Sid Wagle <sw...@hortonworks.com> on 2016/03/09 22:44:13 UTC

Review Request 44594: Fix ordering of Alter table calls which could result in Region Close issue

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This is an automatically generated e-mail. To reply, visit:
https://reviews.apache.org/r/44594/
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Review request for Ambari, Aravindan Vijayan, Dmytro Sen, and Sumit Mohanty.


Bugs: AMBARI-15361
    https://issues.apache.org/jira/browse/AMBARI-15361


Repository: ambari


Description
-------

Two Alter table calls one of TTL and the other for setting the Region policies could result in a possible race condition on HBase side. 

Here is some details:
The assignment operation on the region in question ({{2e13a2d264c50e27c32cd4d3cad6ebca}}) further indicates possible network partition - the region is CLOSED and OFFLINED successfully, and trying to OPEN again, but it found conflict information from zk node (the zk node had a stale information and still thought that it is still in the CLOSING state, which is not true based on the log) - the assignment succeeds, but updating the assignment information to zk failed due to incorrect version in the zk node.


Diffs
-----

  ambari-metrics/ambari-metrics-timelineservice/src/main/java/org/apache/hadoop/yarn/server/applicationhistoryservice/metrics/timeline/HBaseTimelineMetricStore.java f460292 
  ambari-metrics/ambari-metrics-timelineservice/src/main/java/org/apache/hadoop/yarn/server/applicationhistoryservice/metrics/timeline/PhoenixHBaseAccessor.java 4afb722 

Diff: https://reviews.apache.org/r/44594/diff/


Testing
-------

Unit tests passed. No funtional change.


Thanks,

Sid Wagle


Re: Review Request 44594: Fix ordering of Alter table calls which could result in Region Close issue

Posted by Aravindan Vijayan <av...@hortonworks.com>.
-----------------------------------------------------------
This is an automatically generated e-mail. To reply, visit:
https://reviews.apache.org/r/44594/#review122815
-----------------------------------------------------------


Ship it!




Ship It!

- Aravindan Vijayan


On March 9, 2016, 9:44 p.m., Sid Wagle wrote:
> 
> -----------------------------------------------------------
> This is an automatically generated e-mail. To reply, visit:
> https://reviews.apache.org/r/44594/
> -----------------------------------------------------------
> 
> (Updated March 9, 2016, 9:44 p.m.)
> 
> 
> Review request for Ambari, Aravindan Vijayan, Dmytro Sen, and Sumit Mohanty.
> 
> 
> Bugs: AMBARI-15361
>     https://issues.apache.org/jira/browse/AMBARI-15361
> 
> 
> Repository: ambari
> 
> 
> Description
> -------
> 
> Two Alter table calls one of TTL and the other for setting the Region policies could result in a possible race condition on HBase side. 
> 
> Here is some details:
> The assignment operation on the region in question ({{2e13a2d264c50e27c32cd4d3cad6ebca}}) further indicates possible network partition - the region is CLOSED and OFFLINED successfully, and trying to OPEN again, but it found conflict information from zk node (the zk node had a stale information and still thought that it is still in the CLOSING state, which is not true based on the log) - the assignment succeeds, but updating the assignment information to zk failed due to incorrect version in the zk node.
> 
> 
> Diffs
> -----
> 
>   ambari-metrics/ambari-metrics-timelineservice/src/main/java/org/apache/hadoop/yarn/server/applicationhistoryservice/metrics/timeline/HBaseTimelineMetricStore.java f460292 
>   ambari-metrics/ambari-metrics-timelineservice/src/main/java/org/apache/hadoop/yarn/server/applicationhistoryservice/metrics/timeline/PhoenixHBaseAccessor.java 4afb722 
> 
> Diff: https://reviews.apache.org/r/44594/diff/
> 
> 
> Testing
> -------
> 
> Unit tests passed. No funtional change.
> 
> 
> Thanks,
> 
> Sid Wagle
> 
>


Re: Review Request 44594: Fix ordering of Alter table calls which could result in Region Close issue

Posted by Aravindan Vijayan <av...@hortonworks.com>.
-----------------------------------------------------------
This is an automatically generated e-mail. To reply, visit:
https://reviews.apache.org/r/44594/#review122842
-----------------------------------------------------------


Ship it!




Ship It!

- Aravindan Vijayan


On March 10, 2016, 12:34 a.m., Sid Wagle wrote:
> 
> -----------------------------------------------------------
> This is an automatically generated e-mail. To reply, visit:
> https://reviews.apache.org/r/44594/
> -----------------------------------------------------------
> 
> (Updated March 10, 2016, 12:34 a.m.)
> 
> 
> Review request for Ambari, Aravindan Vijayan, Dmytro Sen, and Sumit Mohanty.
> 
> 
> Bugs: AMBARI-15361
>     https://issues.apache.org/jira/browse/AMBARI-15361
> 
> 
> Repository: ambari
> 
> 
> Description
> -------
> 
> Two Alter table calls one of TTL and the other for setting the Region policies could result in a possible race condition on HBase side. 
> 
> Here is some details:
> The assignment operation on the region in question ({{2e13a2d264c50e27c32cd4d3cad6ebca}}) further indicates possible network partition - the region is CLOSED and OFFLINED successfully, and trying to OPEN again, but it found conflict information from zk node (the zk node had a stale information and still thought that it is still in the CLOSING state, which is not true based on the log) - the assignment succeeds, but updating the assignment information to zk failed due to incorrect version in the zk node.
> 
> 
> Diffs
> -----
> 
>   ambari-metrics/ambari-metrics-timelineservice/src/main/java/org/apache/hadoop/yarn/server/applicationhistoryservice/metrics/timeline/HBaseTimelineMetricStore.java 465fe95 
>   ambari-metrics/ambari-metrics-timelineservice/src/main/java/org/apache/hadoop/yarn/server/applicationhistoryservice/metrics/timeline/PhoenixHBaseAccessor.java 48be4ee 
>   ambari-metrics/ambari-metrics-timelineservice/src/test/java/org/apache/hadoop/yarn/server/applicationhistoryservice/metrics/timeline/ITPhoenixHBaseAccessor.java e3e037a 
> 
> Diff: https://reviews.apache.org/r/44594/diff/
> 
> 
> Testing
> -------
> 
> Unit tests passed. No funtional change.
> 
> 
> Thanks,
> 
> Sid Wagle
> 
>


Re: Review Request 44594: Fix ordering of Alter table calls which could result in Region Close issue

Posted by Sid Wagle <sw...@hortonworks.com>.
-----------------------------------------------------------
This is an automatically generated e-mail. To reply, visit:
https://reviews.apache.org/r/44594/
-----------------------------------------------------------

(Updated March 10, 2016, 12:34 a.m.)


Review request for Ambari, Aravindan Vijayan, Dmytro Sen, and Sumit Mohanty.


Changes
-------

Changed.


Bugs: AMBARI-15361
    https://issues.apache.org/jira/browse/AMBARI-15361


Repository: ambari


Description
-------

Two Alter table calls one of TTL and the other for setting the Region policies could result in a possible race condition on HBase side. 

Here is some details:
The assignment operation on the region in question ({{2e13a2d264c50e27c32cd4d3cad6ebca}}) further indicates possible network partition - the region is CLOSED and OFFLINED successfully, and trying to OPEN again, but it found conflict information from zk node (the zk node had a stale information and still thought that it is still in the CLOSING state, which is not true based on the log) - the assignment succeeds, but updating the assignment information to zk failed due to incorrect version in the zk node.


Diffs (updated)
-----

  ambari-metrics/ambari-metrics-timelineservice/src/main/java/org/apache/hadoop/yarn/server/applicationhistoryservice/metrics/timeline/HBaseTimelineMetricStore.java 465fe95 
  ambari-metrics/ambari-metrics-timelineservice/src/main/java/org/apache/hadoop/yarn/server/applicationhistoryservice/metrics/timeline/PhoenixHBaseAccessor.java 48be4ee 
  ambari-metrics/ambari-metrics-timelineservice/src/test/java/org/apache/hadoop/yarn/server/applicationhistoryservice/metrics/timeline/ITPhoenixHBaseAccessor.java e3e037a 

Diff: https://reviews.apache.org/r/44594/diff/


Testing
-------

Unit tests passed. No funtional change.


Thanks,

Sid Wagle


Re: Review Request 44594: Fix ordering of Alter table calls which could result in Region Close issue

Posted by Sid Wagle <sw...@hortonworks.com>.
-----------------------------------------------------------
This is an automatically generated e-mail. To reply, visit:
https://reviews.apache.org/r/44594/
-----------------------------------------------------------

(Updated March 10, 2016, 12:17 a.m.)


Review request for Ambari, Aravindan Vijayan, Dmytro Sen, and Sumit Mohanty.


Changes
-------

Modifications:
- Moved ALTER TTL calls to the HBaseAdmin call for updating policies
- Modified unit test to verify changes.


Bugs: AMBARI-15361
    https://issues.apache.org/jira/browse/AMBARI-15361


Repository: ambari


Description
-------

Two Alter table calls one of TTL and the other for setting the Region policies could result in a possible race condition on HBase side. 

Here is some details:
The assignment operation on the region in question ({{2e13a2d264c50e27c32cd4d3cad6ebca}}) further indicates possible network partition - the region is CLOSED and OFFLINED successfully, and trying to OPEN again, but it found conflict information from zk node (the zk node had a stale information and still thought that it is still in the CLOSING state, which is not true based on the log) - the assignment succeeds, but updating the assignment information to zk failed due to incorrect version in the zk node.


Diffs (updated)
-----

  ambari-metrics/ambari-metrics-timelineservice/src/main/java/org/apache/hadoop/yarn/server/applicationhistoryservice/metrics/timeline/HBaseTimelineMetricStore.java 465fe95 
  ambari-metrics/ambari-metrics-timelineservice/src/main/java/org/apache/hadoop/yarn/server/applicationhistoryservice/metrics/timeline/PhoenixHBaseAccessor.java 48be4ee 
  ambari-metrics/ambari-metrics-timelineservice/src/test/java/org/apache/hadoop/yarn/server/applicationhistoryservice/metrics/timeline/ITPhoenixHBaseAccessor.java e3e037a 

Diff: https://reviews.apache.org/r/44594/diff/


Testing
-------

Unit tests passed. No funtional change.


Thanks,

Sid Wagle