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Posted to issues@hbase.apache.org by "Elliott Clark (JIRA)" <ji...@apache.org> on 2012/06/14 05:38:42 UTC
[jira] [Created] (HBASE-6207) Add jitter to client retry timer
Elliott Clark created HBASE-6207:
------------------------------------
Summary: Add jitter to client retry timer
Key: HBASE-6207
URL: https://issues.apache.org/jira/browse/HBASE-6207
Project: HBase
Issue Type: Improvement
Reporter: Elliott Clark
Assignee: Elliott Clark
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[jira] [Commented] (HBASE-6207) Add jitter to client retry timer
Posted by "Elliott Clark (JIRA)" <ji...@apache.org>.
[ https://issues.apache.org/jira/browse/HBASE-6207?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=13398904#comment-13398904 ]
Elliott Clark commented on HBASE-6207:
--------------------------------------
Yes please.
> Add jitter to client retry timer
> --------------------------------
>
> Key: HBASE-6207
> URL: https://issues.apache.org/jira/browse/HBASE-6207
> Project: HBase
> Issue Type: Improvement
> Reporter: Elliott Clark
> Assignee: Elliott Clark
> Fix For: 0.96.0
>
> Attachments: HBASE-6207-0.patch
>
>
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[jira] [Closed] (HBASE-6207) Add jitter to client retry timer
Posted by "Lars Hofhansl (JIRA)" <ji...@apache.org>.
[ https://issues.apache.org/jira/browse/HBASE-6207?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel ]
Lars Hofhansl closed HBASE-6207.
--------------------------------
> Add jitter to client retry timer
> --------------------------------
>
> Key: HBASE-6207
> URL: https://issues.apache.org/jira/browse/HBASE-6207
> Project: HBase
> Issue Type: Improvement
> Reporter: Elliott Clark
> Assignee: Elliott Clark
> Fix For: 0.94.1, 0.96.0
>
> Attachments: HBASE-6207-0.patch
>
>
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[jira] [Commented] (HBASE-6207) Add jitter to client retry timer
Posted by "Andrew Purtell (JIRA)" <ji...@apache.org>.
[ https://issues.apache.org/jira/browse/HBASE-6207?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=13398890#comment-13398890 ]
Andrew Purtell commented on HBASE-6207:
---------------------------------------
Trivial backport to 0.94 complete and ready to go. Commit?
> Add jitter to client retry timer
> --------------------------------
>
> Key: HBASE-6207
> URL: https://issues.apache.org/jira/browse/HBASE-6207
> Project: HBase
> Issue Type: Improvement
> Reporter: Elliott Clark
> Assignee: Elliott Clark
> Fix For: 0.96.0
>
> Attachments: HBASE-6207-0.patch
>
>
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[jira] [Commented] (HBASE-6207) Add jitter to client retry timer
Posted by "stack (JIRA)" <ji...@apache.org>.
[ https://issues.apache.org/jira/browse/HBASE-6207?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=13399594#comment-13399594 ]
stack commented on HBASE-6207:
------------------------------
... perhaps add to release note?
> Add jitter to client retry timer
> --------------------------------
>
> Key: HBASE-6207
> URL: https://issues.apache.org/jira/browse/HBASE-6207
> Project: HBase
> Issue Type: Improvement
> Reporter: Elliott Clark
> Assignee: Elliott Clark
> Fix For: 0.96.0, 0.94.1
>
> Attachments: HBASE-6207-0.patch
>
>
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[jira] [Commented] (HBASE-6207) Add jitter to client retry timer
Posted by "Zhihong Ted Yu (JIRA)" <ji...@apache.org>.
[ https://issues.apache.org/jira/browse/HBASE-6207?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=13296079#comment-13296079 ]
Zhihong Ted Yu commented on HBASE-6207:
---------------------------------------
{code}
+ private static final Random RANDOM = new Random();
{code}
Can you initialize the above with a seed (such as current time) ?
> Add jitter to client retry timer
> --------------------------------
>
> Key: HBASE-6207
> URL: https://issues.apache.org/jira/browse/HBASE-6207
> Project: HBase
> Issue Type: Improvement
> Reporter: Elliott Clark
> Assignee: Elliott Clark
> Attachments: HBASE-6207-0.patch
>
>
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[jira] [Commented] (HBASE-6207) Add jitter to client retry timer
Posted by "stack (JIRA)" <ji...@apache.org>.
[ https://issues.apache.org/jira/browse/HBASE-6207?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=13399589#comment-13399589 ]
stack commented on HBASE-6207:
------------------------------
Elliott Want to say more on why the jitter is needed?
> Add jitter to client retry timer
> --------------------------------
>
> Key: HBASE-6207
> URL: https://issues.apache.org/jira/browse/HBASE-6207
> Project: HBase
> Issue Type: Improvement
> Reporter: Elliott Clark
> Assignee: Elliott Clark
> Fix For: 0.96.0, 0.94.1
>
> Attachments: HBASE-6207-0.patch
>
>
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[jira] [Commented] (HBASE-6207) Add jitter to client retry timer
Posted by "Hudson (JIRA)" <ji...@apache.org>.
[ https://issues.apache.org/jira/browse/HBASE-6207?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=13399002#comment-13399002 ]
Hudson commented on HBASE-6207:
-------------------------------
Integrated in HBase-0.94 #270 (See [https://builds.apache.org/job/HBase-0.94/270/])
HBASE-6207. Add jitter to client retry timer (Elliott Clark) (Revision 1352711)
Result = SUCCESS
apurtell :
Files :
* /hbase/branches/0.94/src/main/java/org/apache/hadoop/hbase/client/ConnectionUtils.java
* /hbase/branches/0.94/src/test/java/org/apache/hadoop/hbase/client/TestConnectionUtils.java
> Add jitter to client retry timer
> --------------------------------
>
> Key: HBASE-6207
> URL: https://issues.apache.org/jira/browse/HBASE-6207
> Project: HBase
> Issue Type: Improvement
> Reporter: Elliott Clark
> Assignee: Elliott Clark
> Fix For: 0.96.0, 0.94.1
>
> Attachments: HBASE-6207-0.patch
>
>
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[jira] [Commented] (HBASE-6207) Add jitter to client retry timer
Posted by "Andrew Purtell (JIRA)" <ji...@apache.org>.
[ https://issues.apache.org/jira/browse/HBASE-6207?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=13398899#comment-13398899 ]
Andrew Purtell commented on HBASE-6207:
---------------------------------------
Ok, I'll leave it be.
> Add jitter to client retry timer
> --------------------------------
>
> Key: HBASE-6207
> URL: https://issues.apache.org/jira/browse/HBASE-6207
> Project: HBase
> Issue Type: Improvement
> Reporter: Elliott Clark
> Assignee: Elliott Clark
> Fix For: 0.96.0
>
> Attachments: HBASE-6207-0.patch
>
>
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[jira] [Commented] (HBASE-6207) Add jitter to client retry timer
Posted by "Hadoop QA (JIRA)" <ji...@apache.org>.
[ https://issues.apache.org/jira/browse/HBASE-6207?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=13296007#comment-13296007 ]
Hadoop QA commented on HBASE-6207:
----------------------------------
-1 overall. Here are the results of testing the latest attachment
http://issues.apache.org/jira/secure/attachment/12532252/HBASE-6207-0.patch
against trunk revision .
+1 @author. The patch does not contain any @author tags.
+1 tests included. The patch appears to include 2 new or modified tests.
+1 hadoop2.0. The patch compiles against the hadoop 2.0 profile.
+1 javadoc. The javadoc tool did not generate any warning messages.
+1 javac. The applied patch does not increase the total number of javac compiler warnings.
-1 findbugs. The patch appears to introduce 7 new Findbugs (version 1.3.9) warnings.
+1 release audit. The applied patch does not increase the total number of release audit warnings.
-1 core tests. The patch failed these unit tests:
org.apache.hadoop.hbase.coprocessor.TestMasterObserver
Test results: https://builds.apache.org/job/PreCommit-HBASE-Build/2171//testReport/
Findbugs warnings: https://builds.apache.org/job/PreCommit-HBASE-Build/2171//artifact/trunk/patchprocess/newPatchFindbugsWarningshbase-server.html
Findbugs warnings: https://builds.apache.org/job/PreCommit-HBASE-Build/2171//artifact/trunk/patchprocess/newPatchFindbugsWarningshbase-common.html
Console output: https://builds.apache.org/job/PreCommit-HBASE-Build/2171//console
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> Add jitter to client retry timer
> --------------------------------
>
> Key: HBASE-6207
> URL: https://issues.apache.org/jira/browse/HBASE-6207
> Project: HBase
> Issue Type: Improvement
> Reporter: Elliott Clark
> Assignee: Elliott Clark
> Attachments: HBASE-6207-0.patch
>
>
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[jira] [Commented] (HBASE-6207) Add jitter to client retry timer
Posted by "Elliott Clark (JIRA)" <ji...@apache.org>.
[ https://issues.apache.org/jira/browse/HBASE-6207?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=13399595#comment-13399595 ]
Elliott Clark commented on HBASE-6207:
--------------------------------------
Sure, will do.
> Add jitter to client retry timer
> --------------------------------
>
> Key: HBASE-6207
> URL: https://issues.apache.org/jira/browse/HBASE-6207
> Project: HBase
> Issue Type: Improvement
> Reporter: Elliott Clark
> Assignee: Elliott Clark
> Fix For: 0.96.0, 0.94.1
>
> Attachments: HBASE-6207-0.patch
>
>
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[jira] [Updated] (HBASE-6207) Add jitter to client retry timer
Posted by "Jean-Daniel Cryans (JIRA)" <ji...@apache.org>.
[ https://issues.apache.org/jira/browse/HBASE-6207?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel ]
Jean-Daniel Cryans updated HBASE-6207:
--------------------------------------
Resolution: Fixed
Fix Version/s: 0.96.0
Release Note: The retries in the client now have a jitter of up to 1% of the normal computed sleep time.
Hadoop Flags: Reviewed
Status: Resolved (was: Patch Available)
To close the debate on initializing Random, here's the 1.6 code:
{code}
public Random() { this(++seedUniquifier + System.nanoTime()); }
private static volatile long seedUniquifier = 8682522807148012L;
{code}
Thus I'm +1 and I committed it to trunk. Thanks Elliott!
> Add jitter to client retry timer
> --------------------------------
>
> Key: HBASE-6207
> URL: https://issues.apache.org/jira/browse/HBASE-6207
> Project: HBase
> Issue Type: Improvement
> Reporter: Elliott Clark
> Assignee: Elliott Clark
> Fix For: 0.96.0
>
> Attachments: HBASE-6207-0.patch
>
>
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[jira] [Commented] (HBASE-6207) Add jitter to client retry timer
Posted by "Nicolas Spiegelberg (JIRA)" <ji...@apache.org>.
[ https://issues.apache.org/jira/browse/HBASE-6207?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=13295034#comment-13295034 ]
Nicolas Spiegelberg commented on HBASE-6207:
--------------------------------------------
jitter + exponential backoff?
> Add jitter to client retry timer
> --------------------------------
>
> Key: HBASE-6207
> URL: https://issues.apache.org/jira/browse/HBASE-6207
> Project: HBase
> Issue Type: Improvement
> Reporter: Elliott Clark
> Assignee: Elliott Clark
>
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[jira] [Commented] (HBASE-6207) Add jitter to client retry timer
Posted by "Jean-Daniel Cryans (JIRA)" <ji...@apache.org>.
[ https://issues.apache.org/jira/browse/HBASE-6207?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=13398893#comment-13398893 ]
Jean-Daniel Cryans commented on HBASE-6207:
-------------------------------------------
I'm 0, it doesn't seem necessary.
> Add jitter to client retry timer
> --------------------------------
>
> Key: HBASE-6207
> URL: https://issues.apache.org/jira/browse/HBASE-6207
> Project: HBase
> Issue Type: Improvement
> Reporter: Elliott Clark
> Assignee: Elliott Clark
> Fix For: 0.96.0
>
> Attachments: HBASE-6207-0.patch
>
>
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[jira] [Commented] (HBASE-6207) Add jitter to client retry timer
Posted by "Hudson (JIRA)" <ji...@apache.org>.
[ https://issues.apache.org/jira/browse/HBASE-6207?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=13400025#comment-13400025 ]
Hudson commented on HBASE-6207:
-------------------------------
Integrated in HBase-0.94-security #37 (See [https://builds.apache.org/job/HBase-0.94-security/37/])
HBASE-6207. Add jitter to client retry timer (Elliott Clark) (Revision 1352711)
Result = SUCCESS
apurtell :
Files :
* /hbase/branches/0.94/src/main/java/org/apache/hadoop/hbase/client/ConnectionUtils.java
* /hbase/branches/0.94/src/test/java/org/apache/hadoop/hbase/client/TestConnectionUtils.java
> Add jitter to client retry timer
> --------------------------------
>
> Key: HBASE-6207
> URL: https://issues.apache.org/jira/browse/HBASE-6207
> Project: HBase
> Issue Type: Improvement
> Reporter: Elliott Clark
> Assignee: Elliott Clark
> Fix For: 0.96.0, 0.94.1
>
> Attachments: HBASE-6207-0.patch
>
>
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[jira] [Updated] (HBASE-6207) Add jitter to client retry timer
Posted by "Elliott Clark (JIRA)" <ji...@apache.org>.
[ https://issues.apache.org/jira/browse/HBASE-6207?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel ]
Elliott Clark updated HBASE-6207:
---------------------------------
Status: Patch Available (was: Open)
> Add jitter to client retry timer
> --------------------------------
>
> Key: HBASE-6207
> URL: https://issues.apache.org/jira/browse/HBASE-6207
> Project: HBase
> Issue Type: Improvement
> Reporter: Elliott Clark
> Assignee: Elliott Clark
> Attachments: HBASE-6207-0.patch
>
>
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[jira] [Commented] (HBASE-6207) Add jitter to client retry timer
Posted by "Hudson (JIRA)" <ji...@apache.org>.
[ https://issues.apache.org/jira/browse/HBASE-6207?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=13399047#comment-13399047 ]
Hudson commented on HBASE-6207:
-------------------------------
Integrated in HBase-TRUNK-on-Hadoop-2.0.0 #63 (See [https://builds.apache.org/job/HBase-TRUNK-on-Hadoop-2.0.0/63/])
HBASE-6207 Add jitter to client retry timer (Elliott Clark via JD) (Revision 1352699)
Result = FAILURE
jdcryans :
Files :
* /hbase/trunk/hbase-server/src/main/java/org/apache/hadoop/hbase/client/ConnectionUtils.java
* /hbase/trunk/hbase-server/src/test/java/org/apache/hadoop/hbase/client/TestConnectionUtils.java
> Add jitter to client retry timer
> --------------------------------
>
> Key: HBASE-6207
> URL: https://issues.apache.org/jira/browse/HBASE-6207
> Project: HBase
> Issue Type: Improvement
> Reporter: Elliott Clark
> Assignee: Elliott Clark
> Fix For: 0.96.0, 0.94.1
>
> Attachments: HBASE-6207-0.patch
>
>
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[jira] [Commented] (HBASE-6207) Add jitter to client retry timer
Posted by "Hudson (JIRA)" <ji...@apache.org>.
[ https://issues.apache.org/jira/browse/HBASE-6207?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=13398955#comment-13398955 ]
Hudson commented on HBASE-6207:
-------------------------------
Integrated in HBase-TRUNK #3055 (See [https://builds.apache.org/job/HBase-TRUNK/3055/])
HBASE-6207 Add jitter to client retry timer (Elliott Clark via JD) (Revision 1352699)
Result = FAILURE
jdcryans :
Files :
* /hbase/trunk/hbase-server/src/main/java/org/apache/hadoop/hbase/client/ConnectionUtils.java
* /hbase/trunk/hbase-server/src/test/java/org/apache/hadoop/hbase/client/TestConnectionUtils.java
> Add jitter to client retry timer
> --------------------------------
>
> Key: HBASE-6207
> URL: https://issues.apache.org/jira/browse/HBASE-6207
> Project: HBase
> Issue Type: Improvement
> Reporter: Elliott Clark
> Assignee: Elliott Clark
> Fix For: 0.96.0, 0.94.1
>
> Attachments: HBASE-6207-0.patch
>
>
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[jira] [Commented] (HBASE-6207) Add jitter to client retry timer
Posted by "Elliott Clark (JIRA)" <ji...@apache.org>.
[ https://issues.apache.org/jira/browse/HBASE-6207?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=13398906#comment-13398906 ]
Elliott Clark commented on HBASE-6207:
--------------------------------------
As in lets backport. It helps mitigate the replication issues that are logged in HBASE-6165
> Add jitter to client retry timer
> --------------------------------
>
> Key: HBASE-6207
> URL: https://issues.apache.org/jira/browse/HBASE-6207
> Project: HBase
> Issue Type: Improvement
> Reporter: Elliott Clark
> Assignee: Elliott Clark
> Fix For: 0.96.0
>
> Attachments: HBASE-6207-0.patch
>
>
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[jira] [Commented] (HBASE-6207) Add jitter to client retry timer
Posted by "Elliott Clark (JIRA)" <ji...@apache.org>.
[ https://issues.apache.org/jira/browse/HBASE-6207?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=13393634#comment-13393634 ]
Elliott Clark commented on HBASE-6207:
--------------------------------------
That does initialize with the current time:
http://docs.oracle.com/javase/1.4.2/docs/api/java/util/Random.html#Random()
http://docs.oracle.com/javase/6/docs/api/java/util/Random.html#Random()
> Add jitter to client retry timer
> --------------------------------
>
> Key: HBASE-6207
> URL: https://issues.apache.org/jira/browse/HBASE-6207
> Project: HBase
> Issue Type: Improvement
> Reporter: Elliott Clark
> Assignee: Elliott Clark
> Attachments: HBASE-6207-0.patch
>
>
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[jira] [Updated] (HBASE-6207) Add jitter to client retry timer
Posted by "Elliott Clark (JIRA)" <ji...@apache.org>.
[ https://issues.apache.org/jira/browse/HBASE-6207?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel ]
Elliott Clark updated HBASE-6207:
---------------------------------
Attachment: HBASE-6207-0.patch
[~nspiegelberg]
The client already has a semi exponential back off so I just added a jitter that was up to 1% of the previously calculated value.
Also added a test.
> Add jitter to client retry timer
> --------------------------------
>
> Key: HBASE-6207
> URL: https://issues.apache.org/jira/browse/HBASE-6207
> Project: HBase
> Issue Type: Improvement
> Reporter: Elliott Clark
> Assignee: Elliott Clark
> Attachments: HBASE-6207-0.patch
>
>
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[jira] [Updated] (HBASE-6207) Add jitter to client retry timer
Posted by "Andrew Purtell (JIRA)" <ji...@apache.org>.
[ https://issues.apache.org/jira/browse/HBASE-6207?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel ]
Andrew Purtell updated HBASE-6207:
----------------------------------
Fix Version/s: 0.94.1
Committed to 0.94 branch also at Elliott's recommendation. New test TestConnectionUtils passes locally. Running full test suite now to confirm remainder and will back out if there's a problem.
> Add jitter to client retry timer
> --------------------------------
>
> Key: HBASE-6207
> URL: https://issues.apache.org/jira/browse/HBASE-6207
> Project: HBase
> Issue Type: Improvement
> Reporter: Elliott Clark
> Assignee: Elliott Clark
> Fix For: 0.96.0, 0.94.1
>
> Attachments: HBASE-6207-0.patch
>
>
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[jira] [Commented] (HBASE-6207) Add jitter to client retry timer
Posted by "Andrew Purtell (JIRA)" <ji...@apache.org>.
[ https://issues.apache.org/jira/browse/HBASE-6207?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=13295980#comment-13295980 ]
Andrew Purtell commented on HBASE-6207:
---------------------------------------
+1 on patch
> Add jitter to client retry timer
> --------------------------------
>
> Key: HBASE-6207
> URL: https://issues.apache.org/jira/browse/HBASE-6207
> Project: HBase
> Issue Type: Improvement
> Reporter: Elliott Clark
> Assignee: Elliott Clark
> Attachments: HBASE-6207-0.patch
>
>
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[jira] [Commented] (HBASE-6207) Add jitter to client retry timer
Posted by "Elliott Clark (JIRA)" <ji...@apache.org>.
[ https://issues.apache.org/jira/browse/HBASE-6207?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=13296012#comment-13296012 ]
Elliott Clark commented on HBASE-6207:
--------------------------------------
I ran the test that failed locally three times and I always got a pass. Seems like it's un-related.
> Add jitter to client retry timer
> --------------------------------
>
> Key: HBASE-6207
> URL: https://issues.apache.org/jira/browse/HBASE-6207
> Project: HBase
> Issue Type: Improvement
> Reporter: Elliott Clark
> Assignee: Elliott Clark
> Attachments: HBASE-6207-0.patch
>
>
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