IBM E027SLL-H Troubleshooting Guide - Page 171
Monitoring server troubleshooting
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Chapter 9. Monitoring server troubleshooting Review the Tivoli Enterprise Monitoring Server topics for help with troubleshooting errors related to the monitoring server. Messages related to the index file are displayed when the agent fails back to a remote monitoring server These messages indicate that the remote monitoring server was stopped forcefully (for example, when it crashes), but that the database is not corrupted. The messages help to ensure that even though the remote monitoring server stopped unexpectedly, no loss of data occurred, and that the database has been restored successfully. A generic RPC communications error is received when issuing a long-running tacmd execute command A generic RPC communications error is received when you issue a long-running tacmd execute command or tacmd executeAction command on an agent that is connected to a remote monitoring server. Agents directly attached to the hub monitoring server will not have this problem. When you run a tacmd executecommand or tacmd executeAction command on an agent that is attached to a remote monitoring server, and the command was issued with a the -t (timeout) option with a timeout value greater than 600 seconds (10 minutes), the command fails with a generic RPC communications error. The request does not incur a network or communication error, but is actually being terminated by the hub monitoring server when the response for the command is not returned within 600 seconds. However, the error returned to the TACMD indicates a communications error. The default hub monitoring server behavior to timeout long-running remote requests is normally used to manage requests that have not returned within this time period, and also to indicate a network outage might have occurred, or that the remote monitoring server is down. However, this typical result is not the case for a long-running tacmd executeAction or tacmd executecommand where the command is still running at the endpoint, and the monitoring server is still online. If you intend to run commands that take longer than 600 seconds, you can set the KDS_SYNDRQ_TIMEOUT environment variable to run 60 seconds longer than the expected time for the command to complete. KDS_SYNDRQ_TIMEOUT is a monitoring server environment variable set only at the hub monitoring server. The variable can be set in the service console for dynamic update or in the monitoring server configuration file, which requires a hub recycle. This value can be set arbitrarily high. Troubleshooting monitoring server problems on distributed systems The problems described in this section might occur on distributed systems. For information about configuring theTivoli Enterprise Monitoring Server, refer to the IBM Tivoli Monitoring Installation and Setup Guide . © Copyright IBM Corp. 2005, 2012 153
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