[CELEBORN-1674] Fix reader thread name of MapPartitionData

• Type: Improvement
• Status: Resolved
• Priority: Major
• Resolution: Fixed
• Fix Version/s: 0.6.0, 0.5.3
• Labels: pull-request-available
• Assignee: Nicholas Jiang
• Reporter: Nicholas Jiang
• Created: 28/Oct/24 08:26
• Updated: 30/Oct/24 10:18
• Resolved: 30/Oct/24 10:18

Description

The reader thread name of `MapPartitionData` has null at present, which is caused by `MapFileMeta#getMountPoint` that returns null. The reader thread name of `MapPartitionData` is as follows:
```
celeborn@jscs-bigdata-rss-worker:/data/service/celeborn$ jstack 65|grep reader-thread
"null-reader-thread-7" #798 prio=5 os_prio=0 tid=0x00007ef03bca8000 nid=0x47f waiting on condition [0x00007eef068cb000]
"null-reader-thread-7" #799 prio=5 os_prio=0 tid=0x00007ef03a097000 nid=0x47e waiting on condition [0x00007eef069cc000]
"null-reader-thread-5" #796 prio=5 os_prio=0 tid=0x00007ef03a818000 nid=0x47d waiting on condition [0x00007eef06acd000]
"null-reader-thread-6" #797 prio=5 os_prio=0 tid=0x00007ef03b896800 nid=0x47c waiting on condition [0x00007eef06bce000]
"null-reader-thread-4" #793 prio=5 os_prio=0 tid=0x00007ef03ac6b000 nid=0x47b waiting on condition [0x00007eef06ccf000]
"null-reader-thread-6" #794 prio=5 os_prio=0 tid=0x00007ef05829e800 nid=0x47a waiting on condition [0x00007eef06dd0000]
"null-reader-thread-7" #795 prio=5 os_prio=0 tid=0x00007ef03b06b800 nid=0x479 waiting on condition [0x00007eef06ed1000]
"null-reader-thread-3" #789 prio=5 os_prio=0 tid=0x00007ef03a095000 nid=0x478 waiting on condition [0x00007eef06fd2000]
"null-reader-thread-3" #790 prio=5 os_prio=0 tid=0x00007ef03a817000 nid=0x477 waiting on condition [0x00007eef070d3000]
"null-reader-thread-4" #791 prio=5 os_prio=0 tid=0x00007ef03b895000 nid=0x476 waiting on condition [0x00007eef071d4000]
"null-reader-thread-5" #792 prio=5 os_prio=0 tid=0x00007ef03b06a800 nid=0x475 waiting on condition [0x00007eef072d5000]
"null-reader-thread-4" #786 prio=5 os_prio=0 tid=0x00007ef03d06b800 nid=0x474 waiting on condition [0x00007eef073d6000]
"null-reader-thread-5" #787 prio=5 os_prio=0 tid=0x00007ef03bca8800 nid=0x473 waiting on condition [0x00007eef074d7000]
"null-reader-thread-3" #785 prio=5 os_prio=0 tid=0x00007ef03c884800 nid=0x472 waiting on condition [0x00007eef075d8000]
"null-reader-thread-6" #788 prio=5 os_prio=0 tid=0x00007ef03cc6b800 nid=0x471 waiting on condition [0x00007eef076d9000]
"null-reader-thread-2" #783 prio=5 os_prio=0 tid=0x00007ef03c06a000 nid=0x470 waiting on condition [0x00007eef077da000]
"null-reader-thread-2" #784 prio=5 os_prio=0 tid=0x00007ef05829d000 nid=0x46f waiting on condition [0x00007eef078db000]
"null-reader-thread-2" #782 prio=5 os_prio=0 tid=0x00007ef03a815800 nid=0x46e waiting on condition [0x00007eef079dc000]
"null-reader-thread-1" #781 prio=5 os_prio=0 tid=0x00007ef01d852000 nid=0x46d waiting on condition [0x00007eef07add000]
"null-reader-thread-1" #780 prio=5 os_prio=0 tid=0x00007ef03a815000 nid=0x46c waiting on condition [0x00007eef07bde000]
"null-reader-thread-1" #779 prio=5 os_prio=0 tid=0x00007ef03ac6c800 nid=0x46b waiting on condition [0x00007eef07cdf000]
"null-reader-thread-0" #777 prio=5 os_prio=0 tid=0x00007ef03d06a800 nid=0x46a waiting on condition [0x00007eef07de0000]
"null-reader-thread-0" #778 prio=5 os_prio=0 tid=0x00007ef03ac6b800 nid=0x469 waiting on condition [0x00007eef07ee1000]
"null-reader-thread-0" #776 prio=5 os_prio=0 tid=0x00007ef03a095800 nid=0x468 waiting on condition [0x00007eef07fe2000]
```
```
[ERROR][null-reader-thread-6] - org.apache.celeborn.service.deploy.worker.storage.MapPartitionData -MapPartitionData.java(205) -reader exception, reader: DataPartitionReader

{startPartitionIndex=834, endPartitionIndex=834, streamId=1774189696911}

, message: Partition reader has been failed or finished.
```

Issue Links

• links to: GitHub Pull Request #2853