[HDFS-9113] ErasureCodingWorker#processErasureCodingTasks should not fail to process remaining tasks due to one invalid ECTask

• Type: Sub-task
• Status: Resolved
• Priority: Minor
• Resolution: Fixed
• Affects Version/s: HDFS-7285
• Fix Version/s: HDFS-7285
• Component/s: datanode
• Hadoop Flags: Reviewed
• Assignee: Uma Maheswara Rao G
• Reporter: Uma Maheswara Rao G
• Created: 19/Sep/15 17:55
• Updated: 30/Sep/15 19:37
• Resolved: 20/Sep/15 04:27

Description

Currently processErasureCodingTasks method submits ecTasks to thread pool service for processing the tasks. While submitting we initialize ReconstructAndTransferBlock with each ecTask and submit it. There are chances ReconstructAndTransferBlock initialization can fail due to wrong values as we had preconditions for parameter validations in Ctor. Anyway, whatever may be the case, processErasureCodingTasks should not fail and throw exceptions out as it could prevent processing other tasks in the list.