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https://issues.apache.org/jira/browse/HBASE-4070?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=13131128#comment-13131128
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[email protected] commented on HBASE-4070:
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src/main/java/org/apache/hadoop/hbase/client/HBaseAdmin.java
<https://reviews.apache.org/r/2029/#comment6060>
It's a bit complicated; to get the coprocessors for a particular
regionserver R, you do:
1. HBaseAdmin object.getClusterStatus() => ClusterStatus object
2. ClusterStatus object.getServerInfo() => set<HServerLoad>
3. Find R amongst the set returned in step 2 (actually ClusterStatus stores
the servers as a map keyed on the server name, so if you know the server's
name, you don't need to iterate through the set).
3. HServerLoad object.getCoprocessors() => String[].
src/main/java/org/apache/hadoop/hbase/regionserver/HRegionServer.java
<https://reviews.apache.org/r/2029/#comment6061>
We could, but RSStatusTmpl doesn't use HBaseAdmin, but rather HRegionServer
as the source of all of the information that it displays.
- Eugene
On 2011-10-16 16:22:16, Eugene Koontz wrote:
bq.
bq. -----------------------------------------------------------
bq. This is an automatically generated e-mail. To reply, visit:
bq. https://reviews.apache.org/r/2029/
bq. -----------------------------------------------------------
bq.
bq. (Updated 2011-10-16 16:22:16)
bq.
bq.
bq. Review request for hbase and Mingjie Lai.
bq.
bq.
bq. Summary
bq. -------
bq.
bq. Proposed fix for HBASE-4070.
bq.
bq.
bq. This addresses bug HBASE-4070.
bq. https://issues.apache.org/jira/browse/HBASE-4070
bq.
bq.
bq. Diffs
bq. -----
bq.
bq. src/main/jamon/org/apache/hbase/tmpl/master/MasterStatusTmpl.jamon
abeb850
bq. src/main/jamon/org/apache/hbase/tmpl/regionserver/RSStatusTmpl.jamon
be6fceb
bq. src/main/java/org/apache/hadoop/hbase/ClusterStatus.java 01bc1dd
bq. src/main/java/org/apache/hadoop/hbase/HServerLoad.java 0c680e4
bq. src/main/java/org/apache/hadoop/hbase/client/HBaseAdmin.java 92c959c
bq. src/main/java/org/apache/hadoop/hbase/coprocessor/CoprocessorHost.java
7d2f82e
bq. src/main/java/org/apache/hadoop/hbase/master/HMaster.java 50b49a6
bq. src/main/java/org/apache/hadoop/hbase/regionserver/HRegionServer.java
e2e694a
bq. src/test/java/org/apache/hadoop/hbase/coprocessor/TestClassLoading.java
eda5a9b
bq.
bq. Diff: https://reviews.apache.org/r/2029/diff
bq.
bq.
bq. Testing
bq. -------
bq.
bq. Two new tests : testRegionServerCoprocessorReported() and
testMasterServerCoprocessorsReported() added to (existing)
src/test/java/org/apache/hadoop/hbase/coprocessor/TestClassLoading.java.
bq.
bq.
bq. Thanks,
bq.
bq. Eugene
bq.
bq.
> [Coprocessors] Improve region server metrics to report loaded coprocessors to
> master
> ------------------------------------------------------------------------------------
>
> Key: HBASE-4070
> URL: https://issues.apache.org/jira/browse/HBASE-4070
> Project: HBase
> Issue Type: Improvement
> Affects Versions: 0.90.3
> Reporter: Mingjie Lai
> Assignee: Eugene Koontz
> Attachments: HBASE-4070.patch, HBASE-4070.patch, HBASE-4070.patch,
> HBASE-4070.patch, master-web-ui.jpg, rs-status-web-ui.jpg
>
>
> HBASE-3512 is about listing loaded cp classes at shell. To make it more
> generic, we need a way to report this piece of information from region to
> master (or just at region server level). So later on, we can display the
> loaded class names at shell as well as web console.
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