question Re: how to configure fs.client.block.write.replace-datanode-on-failure.policy parameter in hdfs in ambari in Support Questions

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

yagoaparecidoti — Wed, 10 Aug 2022 12:43:21 GMT

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?

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

Babasaheb — Wed, 10 Aug 2022 13:27:30 GMT

@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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Thank you.

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

rki_ — Wed, 10 Aug 2022 14:15:47 GMT

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