摘要：
Aug0921:43:2310921114-elklogserverelasticsearch[30152]：2018-08-0921:43:23068返回RollingFileinAppenders的主要错误完整对象。Aug0921-43:2310920114-elklog服务器elasticsearch[3015]：2018-08-08-0921:43
Aug 09 21:43:23 10921114-elklogserver elasticsearch[30152]: 2018-08-09 21:43:23,068 main ERROR Null object returned for RollingFile in Appenders.
Aug 09 21:43:23 10921114-elklogserver elasticsearch[30152]: 2018-08-09 21:43:23,068 main ERROR Null object returned for RollingFile in Appenders.
Aug 09 21:43:23 10921114-elklogserver elasticsearch[30152]: 2018-08-09 21:43:23,069 main ERROR Null object returned for RollingFile in Appenders.
Aug 09 21:43:23 10921114-elklogserver elasticsearch[30152]: 2018-08-09 21:43:23,069 main ERROR Unable to locate appender "rolling" for logger config "root"
Aug 09 21:43:23 10921114-elklogserver elasticsearch[30152]: 2018-08-09 21:43:23,069 main ERROR Unable to locate appender "index_indexing_slowlog_rolling" for logger config "index.indexing.slowlog.index"
Aug 09 21:43:23 10921114-elklogserver elasticsearch[30152]: 2018-08-09 21:43:23,069 main ERROR Unable to locate appender "index_search_slowlog_rolling" for logger config "index.search.slowlog"
Aug 09 21:43:23 10921114-elklogserver elasticsearch[30152]: 2018-08-09 21:43:23,070 main ERROR Unable to locate appender "deprecation_rolling" for logger config "org.elasticsearch.deprecation"
Aug 09 21:43:23 10921114-elklogserver systemd[1]: elasticsearch.service: main process exited, code=exited, status=1/FAILURE
Aug 09 21:43:23 10921114-elklogserver systemd[1]: Unit elasticsearch.service entered failed state.
Aug 09 21:43:23 10921114-elklogserver systemd[1]: elasticsearch.service failed.
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