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From "Hudson (JIRA)" <j...@apache.org>
Subject [jira] [Commented] (HBASE-12736) Let MetaScanner recycle a given Connection
Date Tue, 23 Dec 2014 22:44:13 GMT

    [ https://issues.apache.org/jira/browse/HBASE-12736?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=14257631#comment-14257631
] 

Hudson commented on HBASE-12736:
--------------------------------

SUCCESS: Integrated in HBase-1.1 #22 (See [https://builds.apache.org/job/HBase-1.1/22/])
HBASE-12736 Let MetaScanner recycle a given Connection (Jurriaan Mous) (stack: rev 611ee0eb7214ee35b912cea677864db13e6c8504)
* hbase-server/src/test/java/org/apache/hadoop/hbase/master/TestRestartCluster.java
* hbase-server/src/test/java/org/apache/hadoop/hbase/util/TestHBaseFsck.java
* hbase-client/src/main/java/org/apache/hadoop/hbase/client/HTable.java
* hbase-server/src/main/java/org/apache/hadoop/hbase/master/HMaster.java
* hbase-client/src/main/java/org/apache/hadoop/hbase/client/MetaScanner.java
* hbase-server/src/test/java/org/apache/hadoop/hbase/regionserver/TestEndToEndSplitTransaction.java
* hbase-client/src/main/java/org/apache/hadoop/hbase/client/ConnectionManager.java
* hbase-client/src/test/java/org/apache/hadoop/hbase/client/TestClientNoCluster.java
* hbase-server/src/test/java/org/apache/hadoop/hbase/client/TestMetaScanner.java
* hbase-server/src/test/java/org/apache/hadoop/hbase/master/TestRegionPlacement.java
* hbase-client/src/main/java/org/apache/hadoop/hbase/client/HBaseAdmin.java
* hbase-server/src/main/java/org/apache/hadoop/hbase/master/CatalogJanitor.java
* hbase-rest/src/main/java/org/apache/hadoop/hbase/rest/RegionsResource.java
* hbase-server/src/main/java/org/apache/hadoop/hbase/util/HBaseFsck.java


> Let MetaScanner recycle a given Connection
> ------------------------------------------
>
>                 Key: HBASE-12736
>                 URL: https://issues.apache.org/jira/browse/HBASE-12736
>             Project: HBase
>          Issue Type: Improvement
>          Components: Client
>            Reporter: Jurriaan Mous
>            Assignee: Jurriaan Mous
>             Fix For: 1.0.0, 2.0.0, 1.1.0
>
>         Attachments: HBASE-12736-v1.patch, HBASE-12736-v2.patch, HBASE-12736-v3.patch,
HBASE-12736-v4.patch, HBASE-12736.patch, profile_TestMetaScanner_after_patch.png, profile_TestMetaScanner_before_patch.png
>
>
> It is very heavy to create a Connection on each meta scan. Connections create RpcClients,
RpcClients create RPC connections and all cannot be recycled.
> Tests with a lot of metascans are very heavy with the async client.
> This issue is to make anything that uses metaScans reuse the same connection.



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