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Premature Connection Close
The web server closed the connection before the user agent could receive the whole response or that the user agent got destroyed, which forces all connections to be closed immediately.
We can tune the following values to prevent this error to happen:
In the primary server
If the poller is taking too long to respond, we can increase the value of omkd_inactivity_timeout in <omk_dir>/conf/opCommon.json.
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In this case, the SSL certificate is likely to be a local certificate authority (CA), or you might be using self-signed SSL certificates, in which case you will need to let the applications know it is OK.
In On the primary server add change the following configuration option to reflect the same as below to <omk_dir>/conf/opCommon.json in the opHA section.
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Validate that pollers and primary have the same types set in nmis9/conf/Config.nmis for each of the following: 'nodetype_list', 'nettype_list', 'roletype_list'
An easy way to do this is using the patch_config.pl tool:
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/usr/local/nmis9/admin/patch_config.pl -r /usr/local/nmis9/conf/Config.nmis roletype_list /usr/local/nmis9/admin/patch_config.pl -r /usr/local/nmis9/conf/Config.nmis nettype_list /usr/local/nmis9/admin/patch_config.pl -r /usr/local/nmis9/conf/Config.nmis nodetype_list |
If mismatched then update, restart daemons (nmis9d and omkd) then rediscover poller.