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It has been reported that some TCP receivers exists that accept syslog tcp messages at any rate, even if they do not manage to actually process them. Instead, they silently drop the message. This behavior is not configurable. All in all, it can lead to considerate message loss. To support such use cases, we need to provide an ability to externally trigger actions suspension and resumption. We do this via a configured file which contains the status of the action. Rsyslog periodically reads the file and if it contains "SUSPEND", it suspend the action (and likewise for resume). closes https://github.com/rsyslog/rsyslog/issues/2924
32 lines
1.0 KiB
Bash
Executable File
32 lines
1.0 KiB
Bash
Executable File
#!/bin/bash
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# This tests the action suspension via a file and ensure that it does
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# NOT override actual target suspension state.
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# This file is part of the rsyslog project, released under ASL 2.0
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# Written 2019-01-08 by Rainer Gerhards
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. ${srcdir:=.}/diag.sh init
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export NUMMESSAGES=2500
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export QUEUE_EMPTY_CHECK_FUNC=wait_seq_check
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# IMPORTANT: nothing permitted to listen on $TCPFLOOD_PORT!
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# mimic some good state in external statefile:
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printf "%s" "READY" > $RSYSLOG_DYNNAME.STATE
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generate_conf
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add_conf '
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$template outfmt,"%msg:F,58:2%\n"
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:msg, contains, "msgnum:" {
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action(name="primary" type="omfwd" target="localhost" port="'$TCPFLOOD_PORT'"
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protocol="tcp" action.externalstate.file="'$RSYSLOG_DYNNAME'.STATE")
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action(name="failover" type="omfile" file="'$RSYSLOG_OUT_LOG'" template="outfmt"
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action.execOnlyWhenPreviousIsSuspended="on")
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}
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'
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startup
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injectmsg
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shutdown_when_empty
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wait_shutdown
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# note: we do NOT need to do a check_seq as this was already done as part of the
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# queue empty predicate check
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exit_test
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