public int getRestoreThreadPoolMaxSize() {
    return getInt(RESTORE_THREAD_POOL_MAX_SIZE, DEFAULT_RESTORE_THREAD_POOL_MAX_SIZE);
  }
Return the value of JOB_CONTAINER_THREAD_POOL_SIZE if autosizing is not enabled,
otherwise returns the value of JOB_AUTOSIZING_CONTAINER_THREAD_POOL_SIZE.
@return
samza-core/src/main/java/org/apache/samza/config/JobConfig.java