Mailing-List: contact commits-help@cassandra.apache.org; run by ezmlm
Precedence: bulk
Reply-To: dev@cassandra.apache.org
Date: Fri, 10 Feb 2017 23:16:41 +0000 (UTC)
From: "Jeff Jirsa (JIRA)" <jira@apache.org>
To: commits@cassandra.apache.org
Message-ID: <JIRA.12955416.1459543857000.52531.1486768601846@Atlassian.JIRA>
In-Reply-To: <JIRA.12955416.1459543857000@Atlassian.JIRA>
References: <JIRA.12955416.1459543857000@Atlassian.JIRA> <JIRA.12955416.1459543857244@jira-lw-us.apache.org>
Subject: [jira] [Commented] (CASSANDRA-11479) BatchlogManager unit tests
 failing on truncate race condition
MIME-Version: 1.0
Content-Type: text/plain; charset=utf-8
Content-Transfer-Encoding: 7bit
archived-at: Fri, 10 Feb 2017 23:16:48 -0000


    [ https://issues.apache.org/jira/browse/CASSANDRA-11479?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=15861990#comment-15861990 ] 

Jeff Jirsa commented on CASSANDRA-11479:
----------------------------------------

[~yukim] / [~jkni] - is this still on your (collective) plates?


> BatchlogManager unit tests failing on truncate race condition
> -------------------------------------------------------------
>
>                 Key: CASSANDRA-11479
>                 URL: https://issues.apache.org/jira/browse/CASSANDRA-11479
>             Project: Cassandra
>          Issue Type: Bug
>          Components: Compaction
>            Reporter: Joel Knighton
>            Assignee: Yuki Morishita
>             Fix For: 2.2.x, 3.0.x, 3.11.x
>
>         Attachments: TEST-org.apache.cassandra.batchlog.BatchlogManagerTest.log
>
>
> Example on CI [here|http://cassci.datastax.com/job/trunk_testall/818/testReport/junit/org.apache.cassandra.batchlog/BatchlogManagerTest/testLegacyReplay_compression/]. This seems to have only started happening relatively recently (within the last month or two).
> As far as I can tell, this is only showing up on BatchlogManagerTests purely because it is an aggressive user of truncate. The assertion is hit in the setUp method, so it can happen before any of the test methods. The assertion occurs because a compaction is happening when truncate wants to discard SSTables; trace level logs suggest that this compaction is submitted after the pause on the CompactionStrategyManager.
> This should be reproducible by running BatchlogManagerTest in a loop - it takes up to half an hour in my experience. A trace-level log from such a run is attached - grep for my added log message "SSTABLES COMPACTING WHEN DISCARDING" to find when the assert is hit.


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