public PersistentMemberID generatePersistentID() {
    File firstDir = getInfoFileDir().getDir();
    InternalDistributedSystem ids = getCache().getInternalDistributedSystem();
    InternalDistributedMember memberId = ids.getDistributionManager().getDistributionManagerId();

    // NOTE - do NOT use DM.cacheTimeMillis here. See bug #49920
    long timestamp = System.currentTimeMillis();
    return new PersistentMemberID(getDiskStoreID(), memberId.getInetAddress(),
        firstDir.getAbsolutePath(), memberId.getName(), timestamp, (short) 0);
  }
Used by unit tests to kill the compactor operation.
geode-core/src/main/java/org/apache/geode/internal/cache/DiskStoreImpl.java