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From "Eric Newton (JIRA)" <>
Subject [jira] [Commented] (ACCUMULO-3603) replay mutations to the wrong table?
Date Thu, 19 Feb 2015 21:49:11 GMT


Eric Newton commented on ACCUMULO-3603:

The continuous ingest code has the ability to kill/restart data nodes, too. 

> replay mutations to the wrong table?
> ------------------------------------
>                 Key: ACCUMULO-3603
>                 URL:
>             Project: Accumulo
>          Issue Type: Bug
>          Components: tserver
>    Affects Versions: 1.6.1
>            Reporter: Eric Newton
>            Assignee: Eric Newton
>            Priority: Critical
>             Fix For: 1.6.3
>          Time Spent: 1h 20m
>  Remaining Estimate: 0h
> A user writes to the mailing list:
> {quote}
> Few times I noticed that some tables have values they cannot have, and
> those entries have timestamp close to a tabletserver failure time.
> (I mean wrong format, one table has msgpack values at least 10 bytes
> long and another table has 1-byte values and after a failure I read
> one or two 1-byte values in the table where I expect to read msgpack).
> I suspect that during recovery process, when WAL is being read, some
> entries are inserted to a wrong table.
> May be it is a know bug as I am still using Accumulo 1.6.1
> {quote}
> Consider adding multiple tables to the continuous ingest test to reproduce.
> Note that the random walk test certainly does this, and no failures have been observed.

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