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Solved: How to check on NiFi node health from an external

WEBHi All, How can an external system check on the health of the NiFi nodes in a cluster. For example, a load balancer that's pushing data to NiFi cluster nodes needs …

Actived: 3 days ago

URL: https://community.cloudera.com/t5/Support-Questions/How-to-check-on-NiFi-node-health-from-an-external-system-e-g/m-p/112898

NodeManager Health Summary

WEBMostly found reasons are regarding disk space threshold reached. In that case needs to consider following parameters. Parameters. Default value. Description. …

Category:  Health Go Health

Zookeeper Health Checks

WEBZookeeper is one of the most critical components in an HDP cluster, but it is also one that is given least importance usually when tuning cluster for performance and …

Category:  Health Go Health

Nodemanager bad health and connection refused

WEBSimilarly if you want to delete a NodeManager from a particular host then do the same: Ambari UI --> Hosts (Tab) --> Click on the desired host link --> On the host …

Category:  Health Go Health

The health test result for DATA_NODE_SCM_HEALTH ha.

WEBThe first thing to do would be to look at the role log for the datanode that's not starting up. That'll typically have a stacktrace that points to what's wrong. Reply. …

Category:  Health Go Health

Flooded with failed health test alerts

WEBThe health test result for NODE_MANAGER_WEB_METRIC_COLLECTION has become bad: The Cloudera Manager Agent is not able to communicate with this role …

Category:  Health Go Health

Solved: Re: Failed to find datanode, suggest to check clus

WEBSo can you please try this: 1. Edit your "/etc/hosts" file and add this line in addition to what you have in the "/etc/hosts" file of all the Hosts (including DataNode & …

Category:  Health Go Health

HBase Master Health

WEBEverything worked fine, but after 2 minutes, I got a wierd error, the Cloudera Manager reports that the Hbase Master Health is bad - (Availability: Unknown, Health: …

Category:  Health Go Health

Solved: frequently getting stale alerts for Datanodes.

WEBThe time taken to mark a datanode as stale is give by dfs.namenode.stale.datanode.interval, with a default of 30 seconds. If this is happening …

Category:  Health Go Health

Solved: Docker Quickstart Image Issue: services in bad hea

WEBI noticed that whenever I install the docker quickstart, run cloudera manager on it and then start the cluster, I see that the following services are red: 1) Host: Clock …

Category:  Health Go Health

Solved: Name Node Health Bad

WEBsat_046. Explorer. Created ‎10-06-2021 09:52 PM. In Cloudera Manager., I could always see this Alert in health Tests Section -. NameNode summary: xyz.abc.net …

Category:  Health Go Health

Solved: HDFS_CANARY_HEALTH has become bad: Canary test fai

WEBSolved Go to solution. HDFS_CANARY_HEALTH has become bad: Canary test failed to write file in directory /temp/.cloudera_health_monitoring_canary_files. …

Category:  Health Go Health

Solved: Cloudera Manager Agent's process directory is on a

WEBThe health test result for HOST_AGENT_PROCESS_DIRECTORY_FREE_SPACE has become bad: The …

Category:  Health Go Health

NAVIGATORMETASERVER_SCM_HEALTH has become bad

WEBAlert message from Cloudera Manager. The health test result for NAVIGATORMETASERVER_SCM_HEALTH has become bad: This role's process is …

Category:  Health Go Health

How to know why hbase regionserver fails

WEB1. RegionServer being terminated, 2. Spark Executor Task failure. For 2, We can definitely increase the Task failure from Default (4) to a Higher Value to ensure the …

Category:  Health Go Health

Failed to find datanode, suggest to check cluster health

WEBSo can you please try this: 1. Edit your "/etc/hosts" file and add this line in addition to what you have in the "/etc/hosts" file of all the Hosts (including DataNode & …

Category:  Health Go Health

Checkpoint Status on name node

WEBThe health test result for NAME_NODE_HA_CHECKPOINT_AGE has become concerning: The filesystem checkpoint is 3 minute (s), 36 second (s) old. This is …

Category:  Health Go Health

IMPALAD_QUERY_MONITORING_STATUS has become bad

WEBWe are receiving lot many of these alerts when we run a lot many queries, we just moved to CDH 5.7.1, previously with same configurations on CDH 5.5.1 we were …

Category:  Health Go Health

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