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Posted to hdfs-dev@hadoop.apache.org by "Todd Lipcon (JIRA)" <ji...@apache.org> on 2010/02/02 23:02:19 UTC

[jira] Created: (HDFS-941) Datanode xceiver protocol should allow reuse of a connection

Datanode xceiver protocol should allow reuse of a connection
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                 Key: HDFS-941
                 URL: https://issues.apache.org/jira/browse/HDFS-941
             Project: Hadoop HDFS
          Issue Type: Improvement
          Components: data-node, hdfs client
    Affects Versions: 0.22.0
            Reporter: Todd Lipcon


Right now each connection into the datanode xceiver only processes one operation.

In the case that an operation leaves the stream in a well-defined state (eg a client reads to the end of a block successfully) the same connection could be reused for a second operation. This should improve random read performance significantly.

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