[jira] [Created] (TEZ-1370) Provide a configuration so when a session is started a set of containers are started with it

["Thaddeus Diamond (JIRA)" <ji...@apache.org>]

Thaddeus Diamond created TEZ-1370:
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             Summary: Provide a configuration so when a session is started a set of containers are started with it
                 Key: TEZ-1370
                 URL: https://issues.apache.org/jira/browse/TEZ-1370
             Project: Apache Tez
          Issue Type: Wish
    Affects Versions: 0.5.0
         Environment: branch -> master
hadoop -> HDP 2.1/CDH 5.0
            Reporter: Thaddeus Diamond


This could use the existing {{TezConfiguration.TEZ_AM_SESSION_MIN_HELD_CONTAINERS}} configuration or a new one.

The API would be as follows:

{noformat}
TezConfiguration tezConfiguration = new TezConfiguration(hadoopConfiguration);
tezConfiguration.setBoolean(TEZ_AM_SESSION_MODE, true)
tezConfiguration.setInt(TEZ_AM_SESSION_STARTUP_CONTAINERS, 3)
TezClient tezClient = new TezClient("foobar", tezConfiguration);

// The following should start 3 containers
tezClient.start();
{noformat}



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