Details
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Bug
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Resolution: Not a Bug
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Major
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None
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7.1.2, 7.1.3
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None
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Untriaged
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0
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Unknown
Description
Summary:
While upgrading a 3 node cluster from server version 6.6.4/6.6.5/7.0.4/7.0.5 to 7.1.2/7.1.3 using CAO, though the upgrade seems to be successful, there are some intermittent rebalance issue where the server continuously responds with
"balanced": false |
This does not happen when upgrading from 6.6.x to 7.0.x.
Details:
- Scenario: While upgrading from 6.6.5 to 7.1.2 using CAO
- Activity: looking into error.log file for one of the nodes(cb-example-0003), I could see these error as below:
1. Refusing to downgrade the compat version from [6,6] to undefined.
ns_server:error,2022-11-29T13:33:57.689Z,ns_1@cb-example-0003.cb-example.default.svc:compat_mode_manager<0.2122.0>:cluster_compat_mode:do_consider_switching_compat_mode:282]Refusing to downgrade the compat version from [6,6] to undefined. |
Where, it seems it can't understand AnotherVersion from the code below:
2. Unexpected exception
[ns_server:error,2022-11-29T13:33:36.148Z,ns_1@cb-example-0002.cb-example.default.svc:<0.2232.0>:ns_rebalance_observer:generic_get_call:110]Unexpected exception {exit, {noproc, {gen_server,call, [{via,leader_registry,ns_rebalance_observer}, get_detailed_progress,10000]}}}[ns_server:error,2022-11-29T13:33:36.151Z,ns_1@cb-example-0002.cb-example.default.svc:<0.2232.0>:ns_rebalance_observer:generic_get_call:110]Unexpected exception {exit, {noproc, {gen_server,call, [{via,leader_registry,ns_rebalance_observer}, {get_rebalance_info,[]}, 10000]}}} |
Attaching the error.log files for all 6 nodes for upgrade from 6.6.5 to 7.1.2.
P.S. Another observation, which is a bit intermittent - if you have only data service, this above error doesn't come and rebalance works fine.
Attachments
Issue Links
- blocks
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- Closed
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