python多进程批量建立索引时出现错误异常

背景当我使用多进程对多个文件夹同时进行批量建立索引时，出现以下错误
Traceback (most recent call last):
File "/test/linux/util/elasticsearch_util.py", line 211, in <module>
rl = pool.map(index_chile, dir_list)
File "/usr/local/lib/python2.7/multiprocessing/pool.py", line 251, in map
return self.map_async(func, iterable, chunksize).get()
File "/usr/local/lib/python2.7/multiprocessing/pool.py", line 567, in get
raise self._value
elasticsearch.exceptions.ConnectionError: ConnectionError(('Connection aborted.', error(104, 'Connection reset by peer'))) caused by: ProtocolError(('Connection aborted.', error(104, 'Connection reset by peer')))

与服务器内存和cpu有关系么？还是其他什么原因呢？求大佬教下，谢谢啦。