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https://issues.apache.org/jira/browse/ACCUMULO-427?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=13217403#comment-13217403
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Keith Turner commented on ACCUMULO-427:
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This bug was triggered by ACCUMULO-329
> Data lost when tablets moving around frequently
> -----------------------------------------------
>
> Key: ACCUMULO-427
> URL: https://issues.apache.org/jira/browse/ACCUMULO-427
> Project: Accumulo
> Issue Type: Bug
> Components: tserver
> Environment: 10 node cluster running random walk test w/ agitation
> Reporter: Keith Turner
> Assignee: Keith Turner
> Priority: Blocker
> Labels: 14_qa_bug
> Fix For: 1.4.0
>
>
> The shard random walk test failed when verifiy its new index. This test has
> two tables a document table and a sharded index table used to find documents.
> The test has a node that rebuilds the index from the document table and then
> verifies that the new and old index are the same. This verification failed.
> The failure was all realted to data loss in one tablet in the new index
> table. The data that was lost was read from two tablets in the document
> table. None of the lost data appeared in any write ahead logs. The tablet
> that lost data was being moved around very frequently during the time of the
> data loss. All of the evidence points to a bug in the batch writer or the
> tablet server code related to writing data.
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