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https://reviews.apache.org/r/45665/
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Review request for Ambari, Dmytro Sen, Sumit Mohanty, and Sid Wagle.


Bugs: AMBARI-15680
    https://issues.apache.org/jira/browse/AMBARI-15680


Repository: ambari


Description
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METRICS_GRAFANA fails to start after deploying cluster with custom pid 
directories/
{code}
{
  "href" : "<>",
  "Tasks" : {
    "attempt_cnt" : 1,
    "cluster_name" : "cl1",
    "command" : "START",
    "command_detail" : "METRICS_GRAFANA START",
    "end_time" : 1459221778314,
    "error_log" : "/var/lib/ambari-agent/data/errors-155.txt",
    "exit_code" : 1,
    "host_name" : "os-d7-ptluou-ambari-se-config-3-3.novalocal",
    "id" : 155,
    "output_log" : "/var/lib/ambari-agent/data/output-155.txt",
    "request_id" : 4,
    "role" : "METRICS_GRAFANA",
    "stage_id" : 4,
    "start_time" : 1459221664137,
    "status" : "FAILED",
    "stderr" : "Traceback (most recent call last):\n  File 
\"/var/lib/ambari-agent/cache/common-services/AMBARI_METRICS/0.1.0/package/scripts/metrics_grafana.py\",
 line 64, in <module>\n    AmsGrafana().execute()\n  File 
\"/usr/lib/python2.6/site-packages/resource_management/libraries/script/script.py\",
 line 219, in execute\n    method(env)\n  File 
\"/var/lib/ambari-agent/cache/common-services/AMBARI_METRICS/0.1.0/package/scripts/metrics_grafana.py\",
 line 46, in start\n    create_ams_datasource()\n  File 
\"/var/lib/ambari-agent/cache/common-services/AMBARI_METRICS/0.1.0/package/scripts/metrics_grafana_util.py\",
 line 224, in create_ams_datasource\n    (response.status, response.reason, 
data))\nresource_management.core.exceptions.Fail: Ambari Metrics Grafana data 
source creation failed. POST request status: 401 Unauthorized 
\n{\"message\":\"Invalid username or password\"}",
{code}


Diffs
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ambari-server/src/main/resources/common-services/AMBARI_METRICS/0.1.0/package/scripts/metrics_grafana_util.py
 012bdcb 

Diff: https://reviews.apache.org/r/45665/diff/


Testing
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Manual testing done
Python unit tests pass.


Thanks,

Aravindan Vijayan

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