[MAPREDUCE-3423] Fetcher Thread should log proper exception

• Type: Bug
• Status: Open
• Priority: Major
• Resolution: Unresolved
• Affects Version/s: 2.0.0-alpha
• Component/s: mrv2
• Assignee: Bhallamudi Venkata Siva Kamesh
• Reporter: Bhallamudi Venkata Siva Kamesh
• Created: 17/Nov/11 18:20
• Updated: 10/Mar/15 04:32

Description

Exception should be logged properly when there is any while deserializing Shuffle Header information .

      if (mapId == null || mapOutput == null) {
        LOG.info("fetcher#" + id + " failed to read map header" + 
                 mapId + " decomp: " + 
                 decompressedLength + ", " + compressedLength, ioe);
        return false;
      }