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  1. Couchbase Server
  2. MB-28276

Auditing requires up to one CPU core per 20K events/sec

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    Description

      Unfortunately memcached events do not work (MB-28271) so I have to use cbq-engine as a generator.

      Setup:

      • 4 data nodes
      • 1 query node

      Q1 workload:

      SELECT * FROM `bucket-1` USE KEYS[$1];

      Q1 workload generates about 67K queries/sec.

      memcached on the query node serves nothing but audit events and yet consumes about 350% CPU. For comparison, each memcached process on data nodes consumes about 70% CPU while performing GET operations triggered by Q1 queries.

      This indicates that audit daemon is not meant to be used under very heavy load.

      I will provide more details once MB-28271 is resolved.

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          depends on

          Bug - A problem which impairs or prevents the functions of the product. MB-28271 Audit records are not created for several memcached events

          • Blocker - Blocks development and/or testing work, production could not run.
          • Closed
          is triggering

          Task - A task that needs to be done. DOC-3534 Add info to documentation to give some guidance and expectation for using the auditing feature

          • Major - Major loss of function.
          • Closed
          relates to

          Improvement - An improvement or enhancement to an existing feature or task. MB-28274 Audit logs for operations on data may require a lot of disk space

          • Major - Major loss of function.
          • Closed
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              djp Don Pinto [X] (Inactive)
              pavelpaulau Pavel Paulau (Inactive)
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                Resolved:

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