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https://issues.apache.org/jira/browse/HBASE-4014?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=13092019#comment-13092019
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jirapos...@reviews.apache.org commented on HBASE-4014:
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This is an automatically generated e-mail. To reply, visit:
https://reviews.apache.org/r/969/
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(Updated 2011-08-26 20:41:07.342851)
Review request for hbase, Gary Helmling and Mingjie Lai.
Changes
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Address Gary's comments on review board:
-remove misbehaving coprocessors from coprocessors set.
-add and use hbase.cprocessor.abort_on_error flag.
-set hbase.coprocessor.abort_on_error to true for tests.
-document usage of hbase.coprocessor.abort_on_error in hbase-default.xml
(defaults to false).
-using synchronizedSet for coprocessorNames.
-move body of addToLoadedCPs to loadInstance().
Also:
-simplify implementation and improve documentation of special-purpose
handleThrowableXX() methods in MasterCoprocessorHost and RegionCoprocessorHost()
Summary
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https://issues.apache.org/jira/browse/HBASE-4014 Coprocessors: Flag the
presence of coprocessors in logged exceptions
The general gist here is to wrap each of {Master,RegionServer}CoprocessorHost's
coprocessor call inside a
"try { ... } catch (Throwable e) { handleCoprocessorThrowable(e) }"
block.
handleCoprocessorThrowable() is responsible for either passing 'e' along to the
client (if 'e' is an IOException) or, otherwise, aborting the service
(Regionserver or Master).
The abort message contains a list of the loaded coprocessors for crash analysis.
This addresses bug HBASE-4014.
https://issues.apache.org/jira/browse/HBASE-4014
Diffs (updated)
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src/main/java/org/apache/hadoop/hbase/coprocessor/CoprocessorHost.java
7a3ac1d
src/main/java/org/apache/hadoop/hbase/master/HMaster.java 92d5dbb
src/main/java/org/apache/hadoop/hbase/master/MasterCoprocessorHost.java
aa930f5
src/main/java/org/apache/hadoop/hbase/regionserver/HRegionServer.java 58f0350
src/main/java/org/apache/hadoop/hbase/regionserver/RegionCoprocessorHost.java
53645ce
src/main/resources/hbase-default.xml 2c8f44b
src/test/java/org/apache/hadoop/hbase/coprocessor/TestMasterCoprocessorException.java
PRE-CREATION
src/test/java/org/apache/hadoop/hbase/coprocessor/TestRegionServerCoprocessorException.java
PRE-CREATION
Diff: https://reviews.apache.org/r/969/diff
Testing
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patch includes two tests:
TestMasterCoprocessorException.java
TestRegionServerCoprocessorException.java
both tests pass in my build environment.
Thanks,
Eugene
> Coprocessors: Flag the presence of coprocessors in logged exceptions
> --------------------------------------------------------------------
>
> Key: HBASE-4014
> URL: https://issues.apache.org/jira/browse/HBASE-4014
> Project: HBase
> Issue Type: Improvement
> Components: coprocessors
> Reporter: Andrew Purtell
> Assignee: Eugene Koontz
> Fix For: 0.92.0
>
> Attachments: HBASE-4014.patch, HBASE-4014.patch, HBASE-4014.patch,
> HBASE-4014.patch, HBASE-4014.patch
>
>
> For some initial triage of bug reports for core versus for deployments with
> loaded coprocessors, we need something like the Linux kernel's taint flag,
> and list of linked in modules that show up in the output of every OOPS, to
> appear above or below exceptions that appear in the logs.
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