[jira] [Created] (IMPALA-6892) CheckHashAndDecrypt doesn't report disk and host where the verification failed

["Mostafa Mokhtar (JIRA)" <ji...@apache.org>]

Mostafa Mokhtar created IMPALA-6892:
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             Summary: CheckHashAndDecrypt doesn't report disk and host where the verification failed
                 Key: IMPALA-6892
                 URL: https://issues.apache.org/jira/browse/IMPALA-6892
             Project: IMPALA
          Issue Type: Bug
    Affects Versions: Impala 2.12.0
            Reporter: Mostafa Mokhtar
            Assignee: Tim Armstrong


Root causing block corruption is difficult because the Status message doesn't have the offending disk and host.

{code}

    Query Type: QUERY
    Query State: EXCEPTION
    Query Status: Block verification failure
{code}

{code}
Status TmpFileMgr::WriteHandle::CheckHashAndDecrypt(MemRange buffer) {
  DCHECK(FLAGS_disk_spill_encryption);
  SCOPED_TIMER(encryption_timer_);

  // GCM mode will verify the integrity by itself
  if (!key_.IsGcmMode()) {
    if (!hash_.Verify(buffer.data(), buffer.len())) {
      return Status("Block verification failure");
    }
  }
  return key_.Decrypt(buffer.data(), buffer.len(), buffer.data());
}
{code}



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