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Sles4sap hanasr delayedcrash #20184

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Sles4sap hanasr delayedcrash #20184

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15 changes: 13 additions & 2 deletions lib/sles4sap_publiccloud.pm
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Original file line number Diff line number Diff line change
Expand Up @@ -369,9 +369,12 @@ sub stop_hana {
my %commands = (
stop => 'HDB stop',
kill => 'HDB kill -x',
# -b is for running the command in background
# echo b > /proc/sysrq-trigger is for crashing the remote node
# sleep 5 is to give time sudo to put the command execution in background and
# to ssh to return, both before to trigger the crash
# This also work in conjunction with ssh -fn arguments
crash => 'sudo su -c "echo b > /proc/sysrq-trigger &"'
crash => 'sudo -b sh -c "sleep 5; echo b > /proc/sysrq-trigger"'
);
croak("HANA stop method '$args{method}' unknown.") unless $commands{$args{method}};

Expand Down Expand Up @@ -400,14 +403,22 @@ sub stop_hana {
cmd => $cmd,
# This timeout is to ensure the run_ssh_command is executed in a reasonable amount of time.
# It is not about how much time the crash is expected to take in the SUT.
# Also consider that internally run_ssh_command is using this value for two different guard mechanisms.
# Expect run_ssh_command to return immediately, and 10 has nothing to do with the value of sleep 5 executed remotely.
# Also consider that internally run_ssh_command is using this value for two different guard mechanism.
timeout => 10,
# This test does not care about output,
# setting this in conjunction with timeout >0 result in the internal implementation of
# run_ssh_command to use script_run
rc_only => 1,
ssh_opts => $crash_ssh_opts);

# crash trigger command:
# - is executed in background
# - has sleep 5 executed remotely.
# run_ssh_command return immediately, so before the remote system execute the crash command.
# So the test execution has to sleep now, waiting that remote system has time to execute the crash procedure.
sleep 10;

# Wait till ssh disappear
record_info("Wait ssh disappear start");
my $out = $self->{my_instance}->wait_for_ssh(timeout => 60, wait_stop => 1);
Expand Down
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