OnCommand Insight —所有数据源都无法通过“内部错误：错误”消息进行采集

适用于

OnCommand Insight (OCI) 7.3.x 

Windows Server 2012 或更高版本

问题

所有数据源都失败 'Internal Error' 

OCI 获取日志（ RAU 或本地）'\SANscreen\acq\log\acq.log'显示以下错误：

HTTP transport error: java.net.SocketException: No buffer space available (maximum connections reached?): connect

在 OCI 服务器的主机操作系统上'\SANscreen\wildfly\standalone\log\elasticsearch_client.log'、您可以看到以下错误：

2019-10-08 17:35:51,270 ERROR [pool-10-thread-1] ElasticAdminManager (ElasticAdminManager.java:329) - Failed retrieving cluster information, error: No buffer space available (maximum connections reached?): connect
2019-10-08 17:35:51,270 ERROR [pool-10-thread-1] ElasticAdminManager (ElasticAdminManager.java:207) - Failed retrieving cluster information, error: Failed retrieving cluster information
2019-10-08 17:35:51,270 ERROR [pool-10-thread-1] ElasticCommon (ElasticCommon.java:544) - Failed retrieving cluster information
com.netapp.oci.es.ElasticsearchException: Failed retrieving cluster information
   at com.netapp.oci.es.admin.ElasticAdminManager.getClusterInfo(ElasticAdminManager.java:208) ~[elasticsearch-client.jar!/:?]
{Truncated}
   at java.lang.Thread.run(Thread.java:748) [?:1.8.0_172]
Caused by: com.netapp.oci.es.ElasticsearchException: Failed retrieving cluster information
   at com.netapp.oci.es.admin.ElasticAdminManager.getNodesInfo(ElasticAdminManager.java:330) ~[elasticsearch-client.jar!/:?]
   at com.netapp.oci.es.admin.ElasticAdminManager.getClusterInfo(ElasticAdminManager.java:201) ~[elasticsearch-client.jar!/:?]
   ... 10 more
Caused by: java.net.SocketException: No buffer space available (maximum connections reached?): connect