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  1. Couchbase Documentation
  2. DOC-5546

document how to adjust KV tracing threshold

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Details

    • Bug
    • Status: Closed
    • Critical
    • Resolution: Fixed
    • Server 5.5/Vulcan, 6.x Doc Updates, 6.0.2
    • Neo.Next
    • kv
    • 1

    Description

      Couchbase Server 5.5 shipped a feature at KV engine called "tracing" which has an adjustable threshold. At the moment, enabling/disabling that feature and adjusting the threshold are not documented anywhere publicly.

      Need to add documentation on how to use the feature so it'll be properly available.

      Attachments

        Issue Links

          has to be done before

          Task - A task that needs to be done. DOC-10194 Setting logging threshold link from SDK

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

          Epic - Created by Jira Software - do not edit or delete. Issue type for a big user story that needs to be broken down. DOC-5743 Clearing SDK Tracing ticket backlog

          • Major - Major loss of function.
          • Open

          Improvement - An improvement or enhancement to an existing feature or task. MB-25860 ns_server should allow for tuning of SLA values for memcached through the rest interface

          • Major - Major loss of function.
          • Open

          Improvement - An improvement or enhancement to an existing feature or task. MB-25632 Allow slow op threshold to be customised

          • Major - Major loss of function.
          • Resolved
          links to

          Web Link Pull Request

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          Activity

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            richard.smedley Richard Smedley added a comment -

            Note, if the server docs for this need to link to the settings on the client side for this,
            we are moving the settings into the client-settings pages - https://docs.couchbase.com/dotnet-sdk/2.7/client-settings.html#threshold-configuration-settings
            .
            Although some may still be in the tracing page if we haven't finished: https://docs.couchbase.com/java-sdk/2.7/threshold-logging.html#threshold-configuration-settings

            richard.smedley Richard Smedley added a comment - Note, if the server docs for this need to link to the settings on the client side for this, we are moving the settings into the client-settings pages - https://docs.couchbase.com/dotnet-sdk/2.7/client-settings.html#threshold-configuration-settings . Although some may still be in the tracing page if we haven't finished: https://docs.couchbase.com/java-sdk/2.7/threshold-logging.html#threshold-configuration-settings
            ingenthr Matt Ingenthron added a comment -

            Chin Hong or Stephen Bream: can we put this in as a possible item for Morpheus? It's a feature since 5.5, but not yet documented.

            ingenthr Matt Ingenthron added a comment - Chin Hong or Stephen Bream : can we put this in as a possible item for Morpheus? It's a feature since 5.5, but not yet documented.
            ray.offiah Ray Offiah added a comment -

            Matt Ingenthron 

            How is this setting configured?

            ray.offiah Ray Offiah added a comment - Matt Ingenthron   How is this setting configured?
            ingenthr Matt Ingenthron added a comment -

            I believe it's in a JSON config file managed by ns_server for the memcached process. Maybe Abhijeeth Nuthan or Trond Norbye can give details. I don't specifically know as I couldn't find it documented and haven't read the source, but the feature was listed as complete, so it should be doable.

            ingenthr Matt Ingenthron added a comment - I believe it's in a JSON config file managed by ns_server for the memcached process. Maybe Abhijeeth Nuthan or Trond Norbye can give details. I don't specifically know as I couldn't find it documented and haven't read the source, but the feature was listed as complete, so it should be doable.
            ray.offiah Ray Offiah added a comment -

            Okay, I'll give them a try.

            ray.offiah Ray Offiah added a comment - Okay, I'll give them a try.
            trond Trond Norbye added a comment -

            The file http://src.couchbase.org/source/xref/5.5.0/kv_engine/etc/couchbase/kv/opcode-attributes.d/README.md gets installed as <install-root>/etc/couchbase/kv/opcode-attributes.d/README.md on all nodes.

            Later on (I don't recall the version from the top of my head) we extended that to be possible to set via mcctl (see http://src.couchbase.org/source/xref/morpheus/kv_engine/etc/couchbase/kv/opcode-attributes.d/README.md )

            I don't know if it is possible to set it through ns_server yet.

            trond Trond Norbye added a comment - The file http://src.couchbase.org/source/xref/5.5.0/kv_engine/etc/couchbase/kv/opcode-attributes.d/README.md gets installed as <install-root>/etc/couchbase/kv/opcode-attributes.d/README.md on all nodes. Later on (I don't recall the version from the top of my head) we extended that to be possible to set via mcctl (see http://src.couchbase.org/source/xref/morpheus/kv_engine/etc/couchbase/kv/opcode-attributes.d/README.md ) I don't know if it is possible to set it through ns_server yet.
            ray.offiah Ray Offiah added a comment -

            Pull request for reviewing:

             

            https://github.com/couchbase/docs-server/pull/2697

             

            ray.offiah Ray Offiah added a comment - Pull request for reviewing:   https://github.com/couchbase/docs-server/pull/2697  

            People

              ray.offiah Ray Offiah
              ingenthr Matt Ingenthron
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                Resolved:

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