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OMC Triggers Frequent Alert Messages About Data Not Received From Agent (Doc ID 2684243.1)

Last updated on JULY 26, 2020

Applies to:

Oracle Management Cloud - Version N/A and later
Information in this document applies to any platform.

Symptoms

OMC Infrastructure Monitoring

Gateway agent and Cloud agent version 1.38 / 1.39.

There are frequent alerts being triggered from OMC for the gateway agent and cloud agent as below:

Alert Message OMC has not received data from <AGENTHOST>:<PORT> for 2 minutes. It could be down or there could be network issues that impact uploading of data.
Severity Fatal
Raised On <DATE and TIMESTAMP>
Alert Rule <RULE RELATED TO ENTITY AVAILABILITY>
Entity <AGENTHOST>:<PORT>

 

Gateway Agents as well as Cloud Agents have been found to be UP and RUNNING during the same <DATE and TIMESTAMP>.

 

Following errors in plenty and are noticed in the agent log(gcagent.log):

2020-03-31 14:12:04,789 [101:5C8E5D39] DEBUG - unable to close request output stream: java.net.SocketException: Socket is closed
2020-03-31 14:12:27,394 [88725:41A558CE] DEBUG - unable to close request output stream: java.net.SocketException: Socket is closed

Also the agent logs report below error for few uploads intermittently:

2020-01-16 12:00:13,989 [56330:A6E38E6E] DEBUG - HTTP response (received):
HTTP/1.1 502 Proxy Error
2020-01-16 12:00:13,989 [56330:A6E38E6E] DEBUG - SaaS Service Response code=502
2020-01-16 12:00:13,989 [56330:A6E38E6E] INFO - Reporting response code=502
on trackingKey D74272B10F49EDEFC7CDB609A7F8E9EA:1579150812000:391:2382 with exception message of <!DOCTYPE HTML PUBLIC "-//IETF//DTD HTML 2.0//EN">
<html><head>
<title>502 Proxy Error</title>
</head><body>
<h1>Proxy Error</h1>
<p>The request could not be processed. An invalid response was received by the proxy or gateway server.</p>
</body></html>

 

Cause

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In this Document
Symptoms
Cause
Solution
References


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