how to configure fs.client.block.write.replace-datanode-on-failure.policy parameter in hdfs in ambari

Question

good morning cloudera community,

we are using apache ambari in version 2.6.2.2 and in this version we are using HDP 2.6.5, with that, we need to configure the parameter below in HDFS, but unfortunately we are not finding this option in the HDFS configuration, so we need to know how configure this parameter in HDFS?

parameter: dfs.client.block.write.replace-datanode-on-failure.policy=ALWAYS

PS: would it be in the "custom hdfs-site" option by clicking on "add property" and adding the parameter in the "properties" box?

rki_ · Accepted Answer

Hi @yagoaparecidoti ,

Yes, as you are using Ambari to manage the cluster, you can add the property as follows :

Ambari -> HDFS -> Configs -> Advanced -> Custom hdfs-site -> Add Property dfs.client.block.write.replace-datanode-on-failure.policy=ALWAYS

Babasaheb · Answer

@yagoaparecidoti

You can add these properties as additional properties in “HDFS Client Configuration Safety Valve for hdfs-site.xml”.

dfs.client.block.write.replace-datanode-on-failure.policy=ALWAYS
dfs.client.block.write.replace-datanode-on-failure.best-effort=true

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