The ologgerd is part of Oracle Cluster Health Monitor and is used by the Oracle Support to troubleshoot RAC problems.

If ologgerd process is consuming a lot of CPU and writes a lot of data to disk,

it can be stopped by executing on both nodes:

# crsctl stop resource ora.crf -init

to disable ologgerd permanently, execute:

# crsctl delete resource ora.crf -init

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