MaoYuan Xian created HAMA-793:
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Summary: Job failed to recovery when more than one tasks fail at
the same time even when fault tolerant enabled.
Key: HAMA-793
URL: https://issues.apache.org/jira/browse/HAMA-793
Project: Hama
Issue Type: Bug
Components: bsp core
Affects Versions: 0.6.2
Reporter: MaoYuan Xian
Priority: Minor
I can find the fault tolerant does not work when more than one tasks fail at
the same time during a job running.
The reason is, in the schedule method of SimpleTaskScheduler, when finds the
jobresult equals to false, job.kill called, and than
JobInProgress.garbageCollection triggered, job directory is clean and makes the
recovery job fail.
I made the following modifications in the SimpleTaskScheduler and avoid the
problem. But not sure whether it is the comprehensive solution:
{code}
- if (Boolean.FALSE.equals(jobResult)) {
+ if ((Boolean.FALSE.equals(jobResult))
+ && (job.getStatus().getRunState() != JobStatus.RECOVERING)) {
{code}
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