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From "stack (JIRA)" <j...@apache.org>
Subject [jira] [Commented] (HBASE-14837) Procedure Queue Improvement
Date Tue, 05 Jan 2016 20:39:40 GMT

    [ https://issues.apache.org/jira/browse/HBASE-14837?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=15083729#comment-15083729
] 

stack commented on HBASE-14837:
-------------------------------

Patch looks good on quick review.

bq.     // TODO: should this be part of the HTD?

Not yet I'd say. Will only confuse till better baked.

This makes sense to me:
{code}
158	      // For now, let server handling have precedence over table handling; presumption
is that it
159	      // is more important handling crashed servers than it is running the
160	      // enabling/disabling tables, etc.
{code}

A ProcedureEvent could get in the way of both table and server events? I suppose that makes
sense.  A ProcedureEvent is a major transition?

Whats this? AvlTree ?



> Procedure Queue Improvement
> ---------------------------
>
>                 Key: HBASE-14837
>                 URL: https://issues.apache.org/jira/browse/HBASE-14837
>             Project: HBase
>          Issue Type: Sub-task
>          Components: proc-v2
>    Affects Versions: 1.2.0, 1.1.2
>            Reporter: Matteo Bertozzi
>            Assignee: Matteo Bertozzi
>            Priority: Minor
>             Fix For: 2.0.0, 1.3.0, 1.2.1
>
>         Attachments: HBASE-14837-v0.patch, HBASE-14837-v1.patch
>
>
> Add event support to the procedure queue to avoid spinning and remove all the immutable
object creations from the java classes Map, Tree, ... 
> the queues that can't be executed because are waiting for an event (e.g. master initialized)
or someone else have an exclusive lock are pulled out the run queue
> https://reviews.apache.org/r/40460/



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