51 lines
1.3 KiB
Tcl
51 lines
1.3 KiB
Tcl
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# This simple script is used in order to estimate the average PFAIL->FAIL
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# state switch after a failure.
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set ::sleep_time 10 ; # How much to sleep to trigger PFAIL.
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set ::fail_port 30016 ; # Node to put in sleep.
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set ::other_port 30001 ; # Node to use to monitor the flag switch.
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proc avg vector {
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set sum 0.0
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foreach x $vector {
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set sum [expr {$sum+$x}]
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}
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expr {$sum/[llength $vector]}
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}
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set samples {}
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while 1 {
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exec redis-cli -p $::fail_port debug sleep $::sleep_time > /dev/null &
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# Wait for fail? to appear.
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while 1 {
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set output [exec redis-cli -p $::other_port cluster nodes]
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if {[string match {*fail\?*} $output]} break
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after 100
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}
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puts "FAIL?"
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set start [clock milliseconds]
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# Wait for fail? to disappear.
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while 1 {
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set output [exec redis-cli -p $::other_port cluster nodes]
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if {![string match {*fail\?*} $output]} break
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after 100
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}
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puts "FAIL"
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set now [clock milliseconds]
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set elapsed [expr {$now-$start}]
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puts $elapsed
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lappend samples $elapsed
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puts "AVG([llength $samples]): [avg $samples]"
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# Wait for the instance to be available again.
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exec redis-cli -p $::fail_port ping
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# Wait for the fail flag to be cleared.
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after 2000
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}
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