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  1. Couchbase Server
  2. MB-46350

[BP 7.0.2 MB-47802]:UI shows 104k mutations remaining when creating indexes on empty bucket

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    Description

      When we CREATE indexes with defer build true, on a bucket with 1 scope and 100 collections and 0 documents , /stats API on one of thee indexer nodes returns this :

      "bucket-1:scope-1:collection-14:index14-2:num_docs_indexed": 0,
      "bucket-1:scope-1:collection-14:index14-2:num_docs_pending": 104448, 
      "bucket-1:scope-1:collection-14:index14-2:num_docs_processed": 0, 
      "bucket-1:scope-1:collection-14:index14-2:num_docs_queued": 0, 
      "bucket-1:scope-1:collection-14:index14-2:num_flush_queued": 0,
      

      which is also causing the UI to display - 104k mutations pending

      This should ideally be 0 mutations pending (as we never loaded the bucket with any documents since the beginning of the test) 

      logs : 
      https://cb-jira.s3.us-east-2.amazonaws.com/logs/CLI/perf-create-ddl/collectinfo-2021-05-18T054915-ns_1%40cen-s705.perf.couchbase.com.zip
      https://cb-jira.s3.us-east-2.amazonaws.com/logs/CLI/perf-create-ddl/collectinfo-2021-05-18T054915-ns_1%40cen-s708.perf.couchbase.com.zip
      https://cb-jira.s3.us-east-2.amazonaws.com/logs/CLI/perf-create-ddl/collectinfo-2021-05-18T054915-ns_1%40cen-s709.perf.couchbase.com.zip
      https://cb-jira.s3.us-east-2.amazonaws.com/logs/CLI/perf-create-ddl/collectinfo-2021-05-18T054915-ns_1%40cen-s710.perf.couchbase.com.zip
      https://cb-jira.s3.us-east-2.amazonaws.com/logs/CLI/perf-create-ddl/collectinfo-2021-05-18T054915-ns_1%40cen-s712.perf.couchbase.com.zip
      https://cb-jira.s3.us-east-2.amazonaws.com/logs/CLI/perf-create-ddl/collectinfo-2021-05-18T054915-ns_1%40cen-s723.perf.couchbase.com.zip
       
       

      Attachments

        1. Screen Shot 2021-05-18 at 11.17.42 AM.png
          105 kB
          Prajwal‌ Kiran Kumar‌
        2. Screen Shot 2021-05-18 at 11.19.38 AM.png
          15 kB
          Prajwal‌ Kiran Kumar‌
        3. Screenshot 2021-09-15 at 8.40.32 PM.png
          157 kB
          Vikas Chaudhary

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          Activity

            varun.velamuri Varun Velamuri added a comment - - edited

            Prajwal‌ Kiran Kumar‌, This is an expected behaviour as creation of collections and scopes increment seqnos for every vbucket. The num_docs_pending stat is based on the high seqnos of the bucket. Closing this issue as Not-a-bug

            varun.velamuri Varun Velamuri added a comment - - edited Prajwal‌ Kiran Kumar‌ , This is an expected behaviour as creation of collections and scopes increment seqnos for every vbucket. The num_docs_pending stat is based on the high seqnos of the bucket. Closing this issue as Not-a-bug

            Varun Velamuri - reopening and assigning it to you based on todays discussion. Moving it to CC.next. Please reassign it to the UI team.

            prajwal.kirankumar Prajwal‌ Kiran Kumar‌ (Inactive) added a comment - Varun Velamuri  - reopening and assigning it to you based on todays discussion. Moving it to CC.next. Please reassign it to the UI team.

            Build couchbase-server-7.0.1-5995 contains indexing commit dc06406 with commit message:
            MB-46350 Do not populate numDocsPending for index in created state

            build-team Couchbase Build Team added a comment - Build couchbase-server-7.0.1-5995 contains indexing commit dc06406 with commit message: MB-46350 Do not populate numDocsPending for index in created state

            Vikas Chaudhary, For deferred indexes in created state, on UI, you should not see "mutations remaining" message.

            varun.velamuri Varun Velamuri added a comment - Vikas Chaudhary , For deferred indexes in created state, on UI, you should not see "mutations remaining" message.

            People

              vikas.chaudhary Vikas Chaudhary
              prajwal.kirankumar Prajwal‌ Kiran Kumar‌ (Inactive)
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