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From "Jonathan Ellis (JIRA)" <j...@apache.org>
Subject [jira] [Commented] (CASSANDRA-4554) Log when a node is down longer than the hint window and we stop saving hints
Date Wed, 09 Jan 2013 23:42:14 GMT

    [ https://issues.apache.org/jira/browse/CASSANDRA-4554?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=13549195#comment-13549195
] 

Jonathan Ellis commented on CASSANDRA-4554:
-------------------------------------------

I'm confused too, there are two 0001 patches but v2 looks like it builds on top of v1 instead
of replacing it...

In any case all I was looking for is something like {{ALTER TABLE system.local ADD hint_window_exceed_at
map<uuid, timestamp>}} or {{ALTER TABLE system.local ADD hints_dropped map<uuid,
int}}.  Leaning towards the latter as more useful.
                
> Log when a node is down longer than the hint window and we stop saving hints
> ----------------------------------------------------------------------------
>
>                 Key: CASSANDRA-4554
>                 URL: https://issues.apache.org/jira/browse/CASSANDRA-4554
>             Project: Cassandra
>          Issue Type: New Feature
>            Reporter: Jonathan Ellis
>            Assignee: Vijay
>            Priority: Minor
>             Fix For: 1.2.2
>
>         Attachments: 0001-CASSANDRA-4554-add-hint-metrics.patch, 0001-CASSANDRA-4554-logging-to-system-table-v2.patch,
0002-CASSANDRA-4554-logging-to-system-table.patch
>
>
> We know that we need to repair whenever we lose a node or disk permanently (since it
may have had undelivered hints on it), but without exposing this we don't know when nodes
stop saving hints for a temporarily dead node, unless we're paying very close attention to
external monitoring.

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