EM Cloud Control 12c, 13c: Tuning Parameters for OHS / Webtier to Handle Heavy Load in Large Environments
(Doc ID 2316552.1)
Last updated on SEPTEMBER 16, 2021
Applies to:
Enterprise Manager Base Platform - Version 12.1.0.4.0 and laterInformation in this document applies to any platform.
Goal
Default OHS parameter values may not be able to handle heavy load in Large EM environments where OMS is monitoring thousands of targets.
OHS may observe hangs at times or crashes due to load and in some of the cases, ohs*.log reports following errors:
[OHS] [ERROR:32] [OHS-9999] [core.c] [host_id: <HOSTNAME>.<DOMAIN_NAME>] [host_addr: <IP>] [pid: pid] [tid: tid] [user: <USER>] [VirtualHost: main] server is within MinSpareThreads of MaxClients, consider raising the MaxClients setting
[OHS] [ERROR:32] [OHS-9999] [core.c] [host_id: <HOSTNAME>.<DOMAIN_NAME>] [host_addr: <IP>] [pid: [pid] [tid: tid] [user: <USER>] [VirtualHost: main] server reached MaxClients setting, consider raising the MaxClients setting
For EM 13.4 and 13.5, review the following document:
Goal of this document is to provide tuning parameters for OHS to handle heavy load.
Solution
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In this Document
| Goal |
| Solution |
| For 13c [13.1, 13.2 and 13.3] |
| For 12c: |
| References |