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  1. Couchbase Server
  2. MB-57050

Online upgrade: Seeing cluster in unbalanced state in mixed mode

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Details

    • Bug
    • Resolution: Duplicate
    • Major
    • None
    • 7.1.4
    • ns_server
    • 6.6.0-7909 --> 7.1.4-3603

    Description

      Steps:

      • 4 node cluster (6.6.0-7909), 1 couchstore bucket
      • Failover one node at a time and perform offline upgrade (7.1.4-3603) using 'rpm -U ..' and add back the node + rebalance
      • After rebalancing 3 nodes (still in 6.6 compatibility mode), the cluster never reports as balanced even after retrying 3-4 times of rebalance operation

        "balanced": false,

      Testrunner test:

       

      python3 testrunner.py -i node.ini -p upgrade_version=7.1.4-3603,stop-on-failure=False,skip_cleanup=False,skip_init_check_cbserver=true,groups=simple,gsi_type=memory_optimized,upgrade_test=True,dgm_run=True,skip_log_scan=true -t newupgradetests.MultiNodesUpgradeTests.test_offline_upgrade_with_add_new_services,initial_version=6.6.0-7909,nodes_init=2,ddocs_num=3,pre_upgrade=create_index,post_upgrade=drop_index,doc-per-day=1,dataset=default,groups=simple,after_upgrade_buckets_flush=True,initial-services-setting=kv,index-kv,n1ql,num_index_replica=1,after_upgrade_services_in=cbas,offline_failover_upgrade=True,upgrade_test=True,dgm_run=True,init_nodes=False

       

       

      Related to MB-57035

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            ashwin.govindarajulu Ashwin Govindarajulu
            ashwin.govindarajulu Ashwin Govindarajulu
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            Dates

              Created:
              Updated:
              Resolved:

              PagerDuty