Uploaded image for project: 'Couchbase Server'
  1. Couchbase Server
  2. MB-53190

[6.6.5 build 10106] - Negative stats for page_bytes and page_itemcnt seen

    XMLWordPrintable

Details

    • Bug
    • Resolution: Unresolved
    • Major
    • backlog
    • 6.6.5
    • storage-engine
    • None
    • Untriaged
    • 1
    • Unknown

    Description

      Steps to reproduce:

      1. Create a 6 node cluster 3KV-2index-1query.
      2. Create about 10 buckets with 2 indexes on each bucket.
      3. Load the docs until all of the buckets have data greater than memory.
      4. Kill memcached (either by OOM kill or by kill -9) and check that 1 KV node auto fails over.
      5. Do a delta recovery and rebalance. 
      6. After a while, we see negative stats reported for page_itemcnt and page_bytes

       

      This was seen while trying to reproduce the Amdocs issue ( following https://issues.couchbase.com/browse/MB-53183)

       

      cbcollect logs 

       

               url : https://cb-engineering.s3.amazonaws.com/CBSE12279Rollback3/collectinfo-2022-07-29T101446-ns_1%40172.23.100.15.zip
      		 
               url : https://cb-engineering.s3.amazonaws.com/CBSE12279Rollback3/collectinfo-2022-07-29T101446-ns_1%40172.23.100.16.zip
      		 
               url : https://cb-engineering.s3.amazonaws.com/CBSE12279Rollback3/collectinfo-2022-07-29T101446-ns_1%40172.23.100.17.zip
      		 
               url : https://cb-engineering.s3.amazonaws.com/CBSE12279Rollback3/collectinfo-2022-07-29T101446-ns_1%40172.23.100.19.zip
      		 
               url : https://cb-engineering.s3.amazonaws.com/CBSE12279Rollback3/collectinfo-2022-07-29T101446-ns_1%40172.23.100.22.zip
      		 
               url : https://cb-engineering.s3.amazonaws.com/CBSE12279Rollback3/collectinfo-2022-07-29T101446-ns_1%40172.23.121.215.zip

      cc Balakumaran Gopal Ritam Sharma 

      Attachments

        No reviews matched the request. Check your Options in the drop-down menu of this sections header.

        Activity

          People

            akhil.mundroy Akhil Mundroy
            pavan.pb Pavan PB
            Votes:
            0 Vote for this issue
            Watchers:
            4 Start watching this issue

            Dates

              Created:
              Updated:

              Gerrit Reviews

                There are no open Gerrit changes

                PagerDuty