[HIVE-19406] HiveKVResultCache.setupOutput hangs when the file creation failed

• Type: Bug
• Status: Open
• Priority: Major
• Resolution: Unresolved
• Affects Version/s: 2.3.2
• Component/s: SQL
• Assignee: Unassigned
• Reporter: John Doe
• Created: 03/May/18 18:30
• Updated: 03/May/18 18:30

Description

The while loop in the HiveKVResultCache.setupOutput function hangs endlessly when the file creation failed, causing the delete() returns false.

The file creation failure can be caused by different reasons, e.g., disk full.

Here is the code snippet.

 

  private void setupOutput() throws IOException {
    if (parentFile == null) {
      while (true) {
        parentFile = File.createTempFile("hive-resultcache", "");
        if (parentFile.delete() && parentFile.mkdir()) {
          parentFile.deleteOnExit();
          break;
        }
        if (LOG.isDebugEnabled()) {
          LOG.debug("Retry creating tmp result-cache directory...");
        }
      }
    }
    ...
  }

A similar case is HIVE-19391