tame: TAME_DEBUG_RANDOM_NOACK: New environment variable to test runner ACK failures
When set, this will cause runner ACK failures to occur approximately every 1/N requests. This allows manually testing conditions that would normally only occur under severe resource contention. DEV-10806main
parent
3fad6c6375
commit
3d56fe289d
12
bin/tame
12
bin/tame
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@ -351,6 +351,13 @@ verify-runner-ack()
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{
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{
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local -r cmd="${1?Missing command}"
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local -r cmd="${1?Missing command}"
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if [ -n "${TAME_DEBUG_RANDOM_NOACK:-}" ]; then
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if [ $((RANDOM % ${TAME_DEBUG_RANDOM_NOACK:-1})) -eq 0 ]; then
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echo "debug: TAME_DEBUG_RANDOM_NOACK triggered" >&2
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return 2
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fi
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fi
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read -t"$TAME_CMD_WAITTIME" -r ack || return
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read -t"$TAME_CMD_WAITTIME" -r ack || return
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test "COMMAND $cmd" == "$ack" || {
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test "COMMAND $cmd" == "$ack" || {
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# TODO check for ack mismatch once output race condition is fixed
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# TODO check for ack mismatch once output race condition is fixed
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@ -533,6 +540,11 @@ Environment Variables:
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(see also --verbose)
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(see also --verbose)
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TAME_CMD_WAITTIME number of seconds to wait for ack from
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TAME_CMD_WAITTIME number of seconds to wait for ack from
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runner (default 3)
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runner (default 3)
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Debug Environment Variables:
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TAME_DEBUG_RANDOM_NOACK randomly (1-in-N, where N is the value)
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simulate a failed runner ACK to test
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the runner restart system
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EOF
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EOF
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exit $EX_USAGE
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exit $EX_USAGE
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