Enabling HDFS/YARN HA and Other CDH Components to Use HDFS

2019-02-12 00:01 

Enabling HDFS HA

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Configuring HBase to Use HDFS HA
nothing to do

Upgrading the Hive Metastore to Use HDFS HA

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Configuring Hue to Work with HDFS HA
add HttpFS role instance under HDFS
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Restart the Hue service

Configuring Impala to Work with HDFS HA
impala-shell -i impala-daemon-host
[impala-daemon-host:21000] > INVALIDATE METADATA

restart the Impala service

 

Enabling YARN (MRv2) ResourceManager High Availability

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Restart the JobHistory Server role

 

HBase High Availability
add a backup HBase Master to a different host than the one on which the active Master is running

(Optional): Llama High Availability 
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ok

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