hadoop-hdfs-issues mailing list archives

Site index · List index
Message view « Date » · « Thread »
Top « Date » · « Thread »
From "Tsz Wo Nicholas Sze (JIRA)" <j...@apache.org>
Subject [jira] [Updated] (HDFS-9710) Change DN to send block receipt IBRs in batches
Date Tue, 16 Feb 2016 22:37:18 GMT

     [ https://issues.apache.org/jira/browse/HDFS-9710?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel

Tsz Wo Nicholas Sze updated HDFS-9710:
    Attachment: h9710_20160216b.patch

h9710_20160216b.patch: fixes a bug.

> 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
>         Attachments: h9710_20160201.patch, h9710_20160205.patch, h9710_20160216.patch,
> When a DN has received a block, it immediately sends a block receipt IBR RPC to NN for
report the block.  Even if a DN has received multiple blocks about 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.

This message was sent by Atlassian JIRA

View raw message