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From "Hudson (JIRA)" <j...@apache.org>
Subject [jira] [Commented] (HDFS-9710) Change DN to send block receipt IBRs in batches
Date Sat, 27 Feb 2016 00:14:18 GMT

    [ https://issues.apache.org/jira/browse/HDFS-9710?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=15170179#comment-15170179
] 

Hudson commented on HDFS-9710:
------------------------------

FAILURE: Integrated in Hadoop-trunk-Commit #9379 (See [https://builds.apache.org/job/Hadoop-trunk-Commit/9379/])
HDFS-9710. DN can be configured to send block receipt IBRs in batches. (szetszwo: rev d1d4e16690cc85f7f22fbead9cf596260819b561)
* hadoop-hdfs-project/hadoop-hdfs/src/test/java/org/apache/hadoop/hdfs/server/datanode/extdataset/ExternalDatasetImpl.java
* hadoop-hdfs-project/hadoop-hdfs/src/test/java/org/apache/hadoop/hdfs/server/datanode/TestDataXceiverLazyPersistHint.java
* hadoop-hdfs-project/hadoop-hdfs/src/test/java/org/apache/hadoop/hdfs/server/datanode/TestBPOfferService.java
* hadoop-hdfs-project/hadoop-hdfs/src/test/java/org/apache/hadoop/hdfs/server/datanode/SimulatedFSDataset.java
* hadoop-hdfs-project/hadoop-hdfs/CHANGES.txt
* hadoop-hdfs-project/hadoop-hdfs/src/main/java/org/apache/hadoop/hdfs/DFSConfigKeys.java
* hadoop-hdfs-project/hadoop-hdfs/src/main/java/org/apache/hadoop/hdfs/server/datanode/DataNode.java
* hadoop-hdfs-project/hadoop-hdfs/src/main/java/org/apache/hadoop/hdfs/server/datanode/fsdataset/FsDatasetSpi.java
* hadoop-hdfs-project/hadoop-hdfs/src/main/java/org/apache/hadoop/hdfs/server/datanode/IncrementalBlockReportManager.java
* hadoop-hdfs-project/hadoop-hdfs/src/main/java/org/apache/hadoop/hdfs/server/datanode/fsdataset/impl/FsDatasetImpl.java
* hadoop-hdfs-project/hadoop-hdfs/src/main/java/org/apache/hadoop/hdfs/server/protocol/StorageReceivedDeletedBlocks.java
* hadoop-hdfs-project/hadoop-hdfs/src/test/java/org/apache/hadoop/hdfs/server/datanode/TestBatchIbr.java
* hadoop-hdfs-project/hadoop-hdfs/src/main/java/org/apache/hadoop/hdfs/server/datanode/BPOfferService.java
* hadoop-hdfs-project/hadoop-hdfs/src/test/java/org/apache/hadoop/hdfs/server/datanode/fsdataset/impl/TestInterDatanodeProtocol.java
* hadoop-hdfs-project/hadoop-hdfs/src/test/java/org/apache/hadoop/hdfs/server/datanode/TestIncrementalBlockReports.java
* hadoop-hdfs-project/hadoop-hdfs/src/main/java/org/apache/hadoop/hdfs/server/datanode/BPServiceActor.java
* hadoop-hdfs-project/hadoop-hdfs/src/main/java/org/apache/hadoop/hdfs/server/datanode/BlockReceiver.java
* hadoop-hdfs-project/hadoop-hdfs/src/main/java/org/apache/hadoop/hdfs/server/datanode/DNConf.java
* hadoop-hdfs-project/hadoop-hdfs/src/main/java/org/apache/hadoop/hdfs/server/datanode/DataXceiver.java


> Change DN to send block receipt IBRs in batches
> -----------------------------------------------
>
>                 Key: HDFS-9710
>                 URL: https://issues.apache.org/jira/browse/HDFS-9710
>             Project: Hadoop HDFS
>          Issue Type: Improvement
>          Components: datanode
>            Reporter: Tsz Wo Nicholas Sze
>            Assignee: Tsz Wo Nicholas Sze
>             Fix For: 2.8.0
>
>         Attachments: h9710_20160201.patch, h9710_20160205.patch, h9710_20160216.patch,
h9710_20160216b.patch, h9710_20160217.patch, h9710_20160219.patch, h9710_20160224.patch, h9710_20160225.patch
>
>
> When a DN has received a block, it immediately sends a block receipt IBR RPC to NN for
reporting the block.  Even if a DN has received multiple blocks at the same time, it still
sends multiple RPCs.  It does not scale well since NN has to process a huge number of RPCs
when many DNs receiving many blocks at the same time.



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