[jira] [Created] (KUDU-3138) improve visibility into the bootstrapping status of a tablet server

["Andrew Wong (Jira)" <ji...@apache.org>]

Andrew Wong created KUDU-3138:
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             Summary: improve visibility into the bootstrapping status of a tablet server
                 Key: KUDU-3138
                 URL: https://issues.apache.org/jira/browse/KUDU-3138
             Project: Kudu
          Issue Type: Improvement
          Components: ksck, server, supportability, ui
            Reporter: Andrew Wong


Today, the best way to understand the happenings of a tserver startup is to look at the {{/tablets}} page in the tserver's web UI and watch the number of {{RUNNING}} tablets gradually but hopefully increase.

It might be helpful to know about some other things, like:
 - progress in initializing the block manager
 - what tablets are currently being bootstrapped
 - the size of the WALs for tablets that need bootstrapping, since this may indicate how much work there is to bootstrap
 - the number of rowsets contained by the tablets that need bootstrapping, since this may indicate how much work there is to bootstrap

Also, in a similar way that we label recovering tservers as "recovering", we may want to consider softer language like "initializing" or "bootstrapping" for tablets that have any replicas in the {{INITIALIZING}} state.



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