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From "Arun Suresh (JIRA)" <j...@apache.org>
Subject [jira] [Updated] (HADOOP-13144) Enhancing IPC client throughput via multiple connections per user
Date Fri, 29 Sep 2017 20:51:14 GMT

     [ https://issues.apache.org/jira/browse/HADOOP-13144?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel

Arun Suresh updated HADOOP-13144:
    Target Version/s: 3.1.0  (was: 2.9.0)

> Enhancing IPC client throughput via multiple connections per user
> -----------------------------------------------------------------
>                 Key: HADOOP-13144
>                 URL: https://issues.apache.org/jira/browse/HADOOP-13144
>             Project: Hadoop Common
>          Issue Type: Improvement
>          Components: ipc
>            Reporter: Jason Kace
>            Priority: Minor
> The generic IPC client ({{org.apache.hadoop.ipc.Client}}) utilizes a single connection
thread for each {{ConnectionId}}.  The {{ConnectionId}} is unique to the connection's remote
address, ticket and protocol.  Each ConnectionId is 1:1 mapped to a connection thread by the
client via a map cache.
> The result is to serialize all IPC read/write activity through a single thread for a
each user/ticket + address.  If a single user makes repeated calls (1k-100k/sec) to the same
destination, the IPC client becomes a bottleneck.

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