Data lost when tablets moving around frequently
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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
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 last 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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