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  1. Couchbase Server
  2. MB-36754

Use frag_percent, avg_item_size from indexer stats rather than ns_server calculating the values

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    Description

      Currently, ns_server is using it's own calculation for computing "frag_percent" and "avg_item_size" values. Both these stats are dependent on data_size stat value. Any change to indexer data_size stat will impact the "frag_percent" and "avg_item_size" values. Also, "frag_percent" depends on "disk_size" value which has been changed as a part of MB-31787. This led to reporting incorrect fragmentation percentage on the UI (MB-36613)

      Instead of ns_server calculating these values, please use the values from indexer stats. Indexer periodic stats already exposes "frag_percent" stat. From build 6.5.0-4750, another stat "avg_item_size" is also exposed

      Attachments

        For Gerrit Dashboard: MB-36754
        # Subject Branch Project Status CR V
        117460,5 MB-36754 Use available indexer stats master ns_server Status: ABANDONED 0 0
        117781,9 MB-36754 Add data_size_on_disk, log_space_on_disk stats unstable indexing Status: MERGED +2 +1
        117987,3 MB-36754 Use indexer provided stats in calculations master ns_server Status: ABANDONED 0 +1
        118073,3 MB-36754 Use indexer provided stats in calculations master ns_server Status: MERGED +2 +1

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            mihir.kamdar Mihir Kamdar (Inactive)
            varun.velamuri Varun Velamuri
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