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OnCommand Insight - All Data Sources fail acquisition with "Internal Error: Error" message

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oncommand-insight
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oci
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Applies to

OnCommand Insight (OCI) 7.3.x 

Windows Server 2012 or later

Issue

All data sources fail with 'Internal Error' 

clipboard_ebbb76128bfb0aba11808449075f269a5.png

 

The OCI acquisition log (RAU or Local) '\SANscreen\acq\log\acq.log' shows the following errors:

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

On the OCI Server's Host OS in '\SANscreen\wildfly\standalone\log\elasticsearch_client.log' you can see the following errors:

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

 

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