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From "Dmytro Sen (JIRA)" <j...@apache.org>
Subject [jira] [Created] (AMBARI-10602) HDFS namenode_opt_newsize and namenode_opt_maxnewsize not using number of datanodes in calculation
Date Mon, 20 Apr 2015 15:14:58 GMT
Dmytro Sen created AMBARI-10602:
-----------------------------------

             Summary: HDFS namenode_opt_newsize and namenode_opt_maxnewsize not using number
of datanodes in calculation
                 Key: AMBARI-10602
                 URL: https://issues.apache.org/jira/browse/AMBARI-10602
             Project: Ambari
          Issue Type: Bug
          Components: stacks
    Affects Versions: 2.1.0
            Reporter: Dmytro Sen
            Assignee: Dmytro Sen
             Fix For: 2.1.0


Reviewing HDFS recommendation code for namenode_heapsize, namenode_opt_newsize and namenode_opt_maxnewsize,
it looks like the calculations are not taking into account the number of datanodes and disks
per datanode.
HDFS recommendations currently gives the following output
{code}
          "configurations": {
            "hadoop-env": {
              "properties": {
                "namenode_heapsize": "1024",
                "namenode_opt_maxnewsize": "256",
                "namenode_opt_newsize": "256"
              },
              "property_attributes": {
                "namenode_heapsize": {
                  "maximum": "2887"
                },
                "dtnode_heapsize": {
                  "maximum": "2887"
                }
              }
            },
{code}



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