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  1. Couchbase Server
  2. MB-35812

checkpoint_manager.cc:512 expects failure - CheckpointManager::expelUnreferencedCheckpointItems()

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      1. Initialize a 7 node cluster, 1 default bucket with replica=1, bucket RAM=100MB
      2. Loaded 1110000 docs such that bucket goes into 37% resident ratio
      3. Rebalance out 1 node.

      +----------------+----------+--------------+
      		 
      | Nodes          | Services | Status       |
      		 
      +----------------+----------+--------------+
      		 
      | 172.23.105.225 | [u'kv']  | Cluster node |
      		 
      | 172.23.105.226 | [u'kv']  | Cluster node |
      		 
      | 172.23.105.220 | [u'kv']  | Cluster node |
      		 
      | 172.23.105.223 | [u'kv']  | Cluster node |
      		 
      | 172.23.105.227 | [u'kv']  | Cluster node |
      		 
      | 172.23.105.221 | [u'kv']  | Cluster node |
      		 
      | 172.23.105.208 | [u'kv']  | --- OUT ---> |
      		 
      +----------------+----------+--------------+

      4. During rebalance load another 1120000 items. Total items in bucket = 2240000
      5. rebalance out 2 more nodes:

      +----------------+----------+--------------+
      		 
      | Nodes          | Services | Status       |
      		 
      +----------------+----------+--------------+
      		 
      | 172.23.105.225 | [u'kv']  | Cluster node |
      		 
      | 172.23.105.226 | [u'kv']  | --- OUT ---> |
      		 
      | 172.23.105.220 | [u'kv']  | Cluster node |
      		 
      | 172.23.105.223 | [u'kv']  | Cluster node |
      		 
      | 172.23.105.227 | [u'kv']  | --- OUT ---> |
      		 
      | 172.23.105.221 | [u'kv']  | Cluster node |
      		 
      +----------------+----------+--------------+

      6. While 5 is running. load another 1120000 docs.
      7. Rebalance failed. memcached exited with reason 134.

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          is cloned by

          Bug - A problem which impairs or prevents the functions of the product. MB-35821 passive_stream.cc:702 expects failure - prepare->getItem()->getBySeqno() == engine->getVBucket(vb_)->getHighSeqno()

          • Major - Major loss of function.
          • Closed
          For Gerrit Dashboard: MB-35812
          # Subject Branch Project Status CR V
          114376,3 MB-35812: Ensure correct cursor is selected when expelling from ckpt master kv_engine Status: MERGED +2 +1

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              ritesh.agarwal Ritesh Agarwal
              ritesh.agarwal Ritesh Agarwal
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                Updated:
                Resolved:

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