[jira] [Resolved] (KUDU-2023) Add tablet-specific version of MetaCacheServerPicker::MarkServerFailed()

["Alexey Serbin (JIRA)" <ji...@apache.org>]

     [ https://issues.apache.org/jira/browse/KUDU-2023?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel ]

Alexey Serbin resolved KUDU-2023.
---------------------------------
       Resolution: Invalid
    Fix Version/s: 1.3.1

> Add tablet-specific version of MetaCacheServerPicker::MarkServerFailed()
> ------------------------------------------------------------------------
>
>                 Key: KUDU-2023
>                 URL: https://issues.apache.org/jira/browse/KUDU-2023
>             Project: Kudu
>          Issue Type: Improvement
>          Components: client
>    Affects Versions: 1.4.0
>            Reporter: Alexey Serbin
>            Assignee: Alexey Serbin
>             Fix For: 1.3.1
>
>
> -Current implementation of {{MetaCacheServerPicker::MarkServerFailed()}} marks the whole tablet server with multiple tablets as failed in the metadata cache, so future requests to any tablets hosted by the server would be directed to replicas hosted by other tablet servers.  There are particular use-cases where having tablet-grained version of the {{MetaCacheServerPicker::MarkServerFailed()}} method would be beneficial.  For example, marking only particular tablet failed on a tablet server because of an error during {{KuduSession::Flush()}} could avoid thrashing  the whole metadata cache for the rest of tablets on the same server if the server is overall healthy and robust.-
> UPDATE: as it turned out, that was not correct -- {{MetaCacheServerPicker::MarkServerFailed()}} marks as failed only tablet replicas on the specified server, not the whole server.



--
This message was sent by Atlassian JIRA
(v6.3.15#6346)