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From "Jiaqi Tan (JIRA)" <>
Subject [jira] Created: (CHUKWA-305) Inconsistent time inputs
Date Wed, 17 Jun 2009 18:50:07 GMT
Inconsistent time inputs

                 Key: CHUKWA-305
             Project: Hadoop Chukwa
          Issue Type: Bug
          Components: data collection, Data Processors
            Reporter: Jiaqi Tan

Times in Job History logs are stored in UTC seconds from Epoch, but times in log-based sources
e.g. clienttrace, and the daemon (DataNode, TaskTracker, JobTracker, NameNode) logs are in
local timezones and in ISO-8601 strings, and do not have the timezone they are recorded in.
This leads to inconsistencies when trying to correlate data in time across log-based sources
and Job History data because the timezone of the data for the log-based sources which emit
times in human-readable strings do not record the timezone. 

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