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From "Sylvain Lebresne (JIRA)" <>
Subject [jira] [Commented] (CASSANDRA-11302) Invalid time unit conversion causing write timeouts
Date Tue, 08 Mar 2016 14:38:40 GMT


Sylvain Lebresne commented on CASSANDRA-11302:

No reason to not get that fix quickly so pushed a fix that uses the {{isTimedOut}} method
|| patch || utests || dtests ||
| [2.1|] | [utests|]
| [dtests|] |
| [2.2|] | [utests|]
| [dtests|] |
| [3.0|] | [utests|]
| [dtests|] |

The tests on 2.1 and 2.2 are on par with their main branches, the 3.0 runs had a few additional
failures which are probably unrelated but I've re-started them to check. [~aweisberg], mind
having a look (all the versions are the same, they merge up from 2.1 without conflict)?

> Invalid time unit conversion causing write timeouts
> ---------------------------------------------------
>                 Key: CASSANDRA-11302
>                 URL:
>             Project: Cassandra
>          Issue Type: Bug
>          Components: Core
>            Reporter: Mike Heffner
>         Attachments: nanosec.patch
> We've been debugging a write timeout that we saw after upgrading from the 2.0.x release
line, with our particular workload. Details of that process can be found in this thread:
> After bisecting various patch release versions, and then commits, on the 2.1.x release
line we've identified version 2.1.5 and this commit as the point where the timeouts first
start appearing:
> After examining the commit we believe this line was a typo:
> as it doesn't properly convert the timeout value from milliseconds to nanoseconds.
> After testing with the attached patch applied, we do not see timeouts on version 2.1.5
nor against 2.2.5 when we bring the patch forward. While we've tested our workload against
this and we are fairly confident in the patch, we are not experts with the code base so we
would prefer additional review.

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