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https://issues.apache.org/jira/browse/MAPREDUCE-7539?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=18090247#comment-18090247
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ASF GitHub Bot commented on MAPREDUCE-7539:
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ferdelyi closed pull request #8555: MAPREDUCE-7539. JobHistoryServer API fails
to serve aggregated logs d…
URL: https://github.com/apache/hadoop/pull/8555
> JobHistoryServer API fails to serve aggregated logs due to uuid mismatch
> ------------------------------------------------------------------------
>
> Key: MAPREDUCE-7539
> URL: https://issues.apache.org/jira/browse/MAPREDUCE-7539
> Project: Hadoop Map/Reduce
> Issue Type: Bug
> Components: jobhistoryserver
> Affects Versions: 3.5.0
> Reporter: Brian Goerlitz
> Assignee: Ferenc Erdelyi
> Priority: Major
> Labels: pull-request-available
>
> Due to Singleton annotations added in HADOOP-15984 for HSWebServices, the
> first time an ifile log is read via the {{/ws/v1/history/aggregatedlogs}}
> API, the UUID of the log is stored in the HSWebServices instance of the
> {{LogAggregationIndexedFileController}} and used for verification of all
> future log files. This results in failure to read any aggregated log files
> belonging to an app that is not the first one accessed after JHS restart.
> {noformat}
> 2026-06-08 20:16:40,368 WARN
> org.apache.hadoop.yarn.logaggregation.filecontroller.ifile.LogAggregationIndexedFileController:
> Can not get log meta from the log
> file:hdfs://nn:8020/tmp/logs/systest/bucket-logs-ifile/0002/application_1780935195539_0002/nm_8041
> The UUID from
> hdfs://nn:8020/tmp/logs/systest/bucket-logs-ifile/0002/application_1780935195539_0002/nm_8041
> is not correct. The offset of loaded UUID is 296605
> 2026-06-08 20:16:40,368 WARN
> org.apache.hadoop.yarn.webapp.GenericExceptionHandler: SERVICE_UNAVAILABLE
> javax.ws.rs.WebApplicationException: HTTP 500 Internal Server Error
> at
> org.apache.hadoop.yarn.server.webapp.LogServlet.getContainerLogMeta(LogServlet.java:134)
> at
> org.apache.hadoop.yarn.server.webapp.LogServlet.getContainerLogsInfo(LogServlet.java:325)
> at
> org.apache.hadoop.yarn.server.webapp.LogServlet.getLogsInfo(LogServlet.java:263)
> at
> org.apache.hadoop.mapreduce.v2.hs.webapp.HsWebServices.getAggregatedLogsMeta(HsWebServices.java:521)
> ...
> Caused by: org.apache.hadoop.yarn.webapp.NotFoundException: HTTP 404 Not Found
> at
> org.apache.hadoop.yarn.server.webapp.LogServlet.getContainerLogMeta(LogServlet.java:122)
> ... 86 more
> Caused by: java.lang.Exception: Can not get log meta for request.
> at
> org.apache.hadoop.yarn.webapp.NotFoundException.<init>(NotFoundException.java:45)
> ... 87 more
> {noformat}
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