New setting for pg_notify listener DB settings, add keepalive #14755
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TheRealHaoLiu
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Related to ansible/awx#14755 move TCP keepalive to pg_listener specific db setting
chrismeyersfsu
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Related to ansible/awx#14755 move TCP keepalive to pg_listener specific db setting
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SUMMARY
This solves the same problem as #14749
This does effectively re-do some of what ansible/awx-operator#1393 does. I would suggest that those awx-operator settings should then be modified to edit
LISTENER_DATABASESas opposed toDATABASES.The benefit of this is that we do not add the keealive messages to the ordinary connections, of which there may be many. In many deployments, max connections is set to 1024... so this seems potentially excessive, even if they are lightweight. But maybe it's not a big deal and we could just close this and keep to the old approach. I just want to fully volunteer what this looks like.
Tested and works for the steps I described in 14749.
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