private void recoverFromFailedCompaction() {
    File tmpFile = getTempFile();
    if (tmpFile.exists()) {
      // if the temp init file exists then we must have crashed during a compaction.
      // In this case we need to destroy the non temp file and rename the temp file.
      if (ifFile.exists()) {
        if (!ifFile.delete()) {
          throw new IllegalStateException("Could not delete " + ifFile);
        }
        if (!tmpFile.renameTo(ifFile)) {
          throw new IllegalStateException("Could not rename " + tmpFile + " to " + ifFile);
        }
      }
    }
  }
Set of members that have been revoked. We keep track of the revoked members so that we can
indicate to the user a member has been revoked, rather is simply conflicting
geode-core/src/main/java/org/apache/geode/internal/cache/DiskInitFile.java