accumulo-notifications mailing list archives

Site index · List index
Message view « Date » · « Thread »
Top « Date » · « Thread »
From "David Medinets (JIRA)" <j...@apache.org>
Subject [jira] [Updated] (ACCUMULO-1802) Create a compaction strategy for aging off data
Date Tue, 22 Apr 2014 00:38:15 GMT

     [ https://issues.apache.org/jira/browse/ACCUMULO-1802?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel
]

David Medinets updated ACCUMULO-1802:
-------------------------------------

    Priority: Trivial  (was: Major)

Reduced priority because this ticket does not directly impact functionality. Also the ticket
suffers from scope creep.

> Create a compaction strategy for aging off data
> -----------------------------------------------
>
>                 Key: ACCUMULO-1802
>                 URL: https://issues.apache.org/jira/browse/ACCUMULO-1802
>             Project: Accumulo
>          Issue Type: New Feature
>          Components: tserver
>            Reporter: Eric Newton
>            Priority: Trivial
>             Fix For: 1.7.0
>
>
> The default compaction strategy has a tendency to put the oldest data in the largest
files.  This leads to a lot of work when it is time to age off data.
> One could imaging a compaction strategy that would split data into separate files based
on the timestamp.  Additionally, if the min/max timestamps for a file were known, old data
could be aged off by deleting whole files.
> To accomplish this, will need to augment the configurable compaction strategy to support
multiple output files, and saving/using extra metadata in each file.



--
This message was sent by Atlassian JIRA
(v6.2#6252)

Mime
View raw message