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From "Tamas Payer (Jira)" <j...@apache.org>
Subject [jira] [Updated] (AMBARI-25611) After purging AMS database "TimelineMetricMetadataKey is null" error is thrown
Date Mon, 18 Jan 2021 09:47:00 GMT

     [ https://issues.apache.org/jira/browse/AMBARI-25611?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel
]

Tamas Payer updated AMBARI-25611:
---------------------------------
    Priority: Minor  (was: Major)

> After purging AMS database "TimelineMetricMetadataKey is null" error is thrown
> ------------------------------------------------------------------------------
>
>                 Key: AMBARI-25611
>                 URL: https://issues.apache.org/jira/browse/AMBARI-25611
>             Project: Ambari
>          Issue Type: Task
>          Components: ambari-metrics
>    Affects Versions: 2.7.5
>            Reporter: Tamas Payer
>            Priority: Minor
>
> After purging the Metrics Collector's database the following error message appears in
the logs:
> {code:java}
> 2021-01-15 11:30:48,921 ERROR org.apache.ambari.metrics.core.timeline.discovery.TimelineMetricMetadataManager:
TimelineMetricMetadataKey is null for : [-1, -1, -64, -112, -85, -17, 39, -84, -121, 19,
-118, -36, -104, -21, -7, 110, 61, -97, -56, 10]{code}
>  
> *The following steps were used to purge the database:*
>  * +Get some configuration values:+
>  * Get _hbase.rootdir_. *hbase.rootdir = /user/ams/hbase*
>  * Get _hbase.tmp.dir_. *hbase.tmp.dir = /var/lib/ambari-metrics-collector/hbase-tmp*
>  * Get _hbase.zookeeper.property.datadir_. *hbase.zookeeper.property.datadir = ${hbase.tmp.dir}/zookeeper*
>  * Get _phoenix.spool.directory_. *phoenix.spool.directory = ${hbase.tmp.dir}/phoenix-spool*
>  * Get ‘ZooKeeper Znode Parent’. *ZooKeeper Znode Parent = /ams-hbase-unsecure*
>  * *Stop AMS and set it to Maintenance Mode*
>  * Remove the HBase database
>  * _su hdfs_
>  * _hdfs dfs -ls /user/ams/hbase_
>  * _hdfs dfs -rm -r /user/ams/hbase_
>  * _exit (back to root from hdfs user)_
>  * Remove the AMS Zookeeper data *on both Collector Nodes*
>  * _su ams_
>  * _ls /var/lib/ambari-metrics-collector/hbase-tmp/zookeeper/_
>  * _rm -rf /var/lib/ambari-metrics-collector/hbase-tmp/zookeeper/*_
>  * Remove any Phoenix spool files *on both Collector Nodes*
>  * _ls /var/lib/ambari-metrics-collector/hbase-tmp/phoenix-spool/_
>  * _rm -rf /var/lib/ambari-metrics-collector/hbase-tmp/phoenix-spool/*_
>  * _exit_ (back to root from ams user)
>  * Connect to the cluster zookeeper instance and delete the ‘_ZooKeeper Znode Parent’/meta-region-server_ node
>  * _/usr/hdp/current/zookeeper-client/bin/zkCli.sh -server localhost:2181_
>  * _[zk: localhost:2181(CONNECTED) 0]_
>  * _rmr /ams-hbase-unsecure/meta-region-server_
>  * _quit_
>  * Restart AMS
>  



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