Siddharth Seth created TEZ-1819:
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Summary: Fetchers can clobber files if there's multiple sources
involved
Key: TEZ-1819
URL: https://issues.apache.org/jira/browse/TEZ-1819
Project: Apache Tez
Issue Type: Bug
Reporter: Siddharth Seth
Assignee: Siddharth Seth
Priority: Critical
Can happen in case of speculation, or when a node goes bad during a fetch. The
attempt number is not being considered at the moment.
Also, TezTaskOutputFiles is fairly confusing - some documentation would help.
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