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From "ASF subversion and git services (JIRA)" <>
Subject [jira] [Commented] (ACCUMULO-2041) refactor Tablet
Date Thu, 05 Jun 2014 20:06:04 GMT


ASF subversion and git services commented on ACCUMULO-2041:

Commit 8071252801817dc88d5e6b50fa58ad3b0a629446 in accumulo's branch refs/heads/master from
[;h=8071252 ]

ACCUMULO-2041 should not clear compaction state while still compacting

> refactor Tablet
> ---------------
>                 Key: ACCUMULO-2041
>                 URL:
>             Project: Accumulo
>          Issue Type: Bug
>          Components: tserver
>            Reporter: Eric Newton
>            Assignee: Eric Newton
>             Fix For: 1.7.0
>         Attachments: ACCUMULO-2041-v1.patch, ACCUMULO-2041-v2.patch
> Tablet has some very delicate state stored in several variables.  Translate this into
some sort of sane state machine, with appropriate, clean log messages when the state transitions.
 I'm specifically thinking of {{closing}}, {{closed}}, {{closeComplete}} and {{closeCompleting}}.
 That's 16 possible states, but I'm thinking that only a few make any sense.  May want to
look at the {{...InProgress}} and {{..WaitingToStart}} booleans, too.  Some of the embedded
classes could be moved out to their own files, just to reduce the size of the class.  There
are 17 uses of the keyword {{class}} in this one file. The constructor nesting is pretty crazy.
 The constructor is doing too much.  It should not be doing recovery, for example.  It should
not be passing "this" to anything.  Small things, like {{extent}}, {{fs}}, {{conf}} should
be final.  Anything that would facilitate unit testing would be welcome.

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