question HDFS + how to verify the version of HDFS clients on hadoop cluster in Support Questions

HDFS + how to verify the version of HDFS clients on hadoop cluster

mike_bronson7 — Tue, 28 Jan 2020 18:28:21 GMT

we can verify the HDFS version on hadoop cluster

as the following:

su hdfs

hdfs version

but since hdfs client also installed on all data-nodes machines

we need to verify also the hdfs client version

any cli / command / binaries files , that can captured the hdfs client version ?

Re: HDFS + how to verify the version of HDFS clients on hadoop cluster

jsensharma — Tue, 28 Jan 2020 20:11:32 GMT

@mike_bronson7

There are couple of other options we can explore like:

Using HDFS command line is one of the best way to get the detailed version.

# hdfs version

Using HDP Select command on the host where you want to check the version.

# hdp-select | grep hdfs-client

Using Ambari API also we can get some idea about the hdfs client version shipped and installed as part of the HDP.

# curl -s -u admin:admin -H "X-Requested-By: ambari" -X GET http://${AMBARI_SERVER_FQDN}:8080/api/v1/clusters/${CLUSTER_NAME}/hosts/${HOST_TO_CHECK}/host_components/HDFS_CLIENT | grep -i version

Re: https://community.cloudera.com/t5/Support-Questions/how-to-recover-bad-namenode-from-good-namenode/td-p/288471

mike_bronson7 — Tue, 28 Jan 2020 22:00:55 GMT

Jay - can you help me with this post - https://community.cloudera.com/t5/Support-Questions/how-to-recover-bad-namenode-from-good-namenode/td-p/288471