[YARN-10320] Replace FSDataInputStream#read with readFully in Log Aggregation

• Type: Bug
• Status: Resolved
• Priority: Major
• Resolution: Fixed
• Affects Version/s: 3.3.0
• Fix Version/s: 3.4.0
• Component/s: log-aggregation
• Labels: pull-request-available
• Assignee: Ashutosh Gupta
• Reporter: Prabhu Joseph
• Created: 17/Jun/20 09:23
• Updated: 23/Jun/22 16:29
• Resolved: 23/Jun/22 16:29

Description

Have observed Log Aggregation code has used FSDataInputStream#read instead of readFully in multiple places like below. One of the place is fixed by YARN-8106.
This Jira targets to fix at all other places.

LogAggregationIndexedFileController#loadUUIDFromLogFile

          byte[] b = new byte[uuid.length];
          int actual = fsDataInputStream.read(b);
          if (actual != uuid.length || Arrays.equals(b, uuid)) {

Issue Links

• links to: GitHub Pull Request #4486