JaySenSharma created AMBARI-18064:
-------------------------------------
Summary: Decrease the number of retry count for
check_ranger_login_urllib2
Key: AMBARI-18064
URL: https://issues.apache.org/jira/browse/AMBARI-18064
Project: Ambari
Issue Type: Bug
Components: ambari-agent
Affects Versions: trunk
Environment: All
Reporter: JaySenSharma
If the Ranger Admin is down then while starting any service from Ambari it
keeps retrying 75 times in the interval of 8 seconds (total 600 Seconds ,
Means 10 minutes) and then it finally starts the service like Kafka Broker
service.
Following kind of logging we can see in the ambari console when the Ranger
Admin is Down and when the kafka broker start request is triggered (Attaching
the "/var/lib/ambari-agent/data/output-297.txt" log):
Snippet of the retry attempts:
{code}
2016-08-08 13:45:27,802 - HdfsResource[None] {'security_enabled': False,
'hadoop_bin_dir': '/usr/hdp/current/hadoop-client/bin', 'keytab': [EMPTY],
'default_fs': 'hdfs://jss1.example.com:8020', 'hdfs_resource_ignore_file':
'/var/lib/ambari-agent/data/.hdfs_resource_ignore', 'hdfs_site': ...,
'kinit_path_local': 'kinit', 'principal_name': [EMPTY], 'user': 'hdfs',
'action': ['execute'], 'hadoop_conf_dir':
'/usr/hdp/current/hadoop-client/conf', 'immutable_paths':
[u'/apps/hive/warehouse', u'/mr-history/done', u'/app-logs', u'/tmp']}
2016-08-08 13:45:27,853 - RangeradminV2: Skip ranger admin if it's down !
2016-08-08 13:45:27,858 - Will retry 74 time(s), caught exception: Connection
failed to Ranger Admin. Reason - [Errno 111] Connection refused.. Sleeping for
8 sec(s)
2016-08-08 13:45:35,869 - Will retry 73 time(s), caught exception: Connection
failed to Ranger Admin. Reason - [Errno 111] Connection refused.. Sleeping for
8 sec(s)
.
.
.
2016-08-08 13:55:04,653 - Will retry 2 time(s), caught exception: Connection
failed to Ranger Admin. Reason - [Errno 111] Connection refused.. Sleeping for
8 sec(s)
2016-08-08 13:55:12,665 - Will retry 1 time(s), caught exception: Connection
failed to Ranger Admin. Reason - [Errno 111] Connection refused.. Sleeping for
8 sec(s)
2016-08-08 13:55:20,676 - Connection failed to Ranger Admin. Reason - [Errno
111] Connection refused.
2016-08-08 13:55:20,683 -
File['/usr/hdp/current/kafka-broker/config/ranger-security.xml'] {'content':
InlineTemplate(...), 'owner': 'kafka', 'group': 'hadoop', 'mode': 0644}
{code}
*What is Needed?*
Here we see that it is not worth to wait for 600 Seconds (10 Minutes) to retry
and then start the service (kafka broker Or any other component). Instead it
can be reduced retry attempts to 15 times instead of trying 75 times.
*What was previous behavior?*
Before the [AMBARI-14710|https://issues.apache.org/jira/browse/AMBARI-14710]
the retry attempt was set to 15 times which was more accurate.
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