Intermittent High CPU Utilization by Oozie Server

Description
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User is experiencing an intermittent high CPU utilisation of the Oozie server in a monthly period.

Details
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After examining the JStack results from that time interval, our hypothesis is that bottleneck is the Oozie’s log streaming process which is invoked through Oozie’s REST API.

Log

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Full log in attachment from the problematic time interval.