HBASE-27651 hbase-daemon.sh foreground_start should propagate SIGHUP and SIGTERM #5035
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saintstack
approved these changes
Feb 17, 2023
| { | ||
| # pass through SIGHUP if we can | ||
| if [ -f "${HBASE_PID}" ] ; then | ||
| kill -s HUP "$(cat "${HBASE_PID}")" |
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You'd rather see the output than /dev/null it? And does the old pid stick around now?
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Testing in a docker container that disappears... I'm guessing that this script already handles the pid file, but let me look more closely...
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Oh. cleanupAfterRun handles the pid file.
…and SIGTERM Introduce separate `trap`s for SIGHUP vs. the rest. Treat `SIGINT`, `SIGKILL`, and `EXIT` identically, as before. Use the signal name without `SIG` prefix for increased portability, as per the POSIX man page for `trap`. `SIGTERM` handler will now honor `HBASE_STOP_TIMEOUT` as described in the file header.
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Looks like this works as we expect. Running in a kubernetes pod, launching the region server container with |
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So in the old code we will always use |
Apache9
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Mar 19, 2023
Correct. |
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The new code will also honor the documented timeout between sending SIGTERM and SIGKILL. |
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Introduce separate
traps for SIGHUP vs. the rest. TreatSIGINT,SIGKILL, andEXITidentically, as before. Use the signal name withoutSIGprefix for increased portability, as per the POSIX man page fortrap.SIGTERMhandler will now honorHBASE_STOP_TIMEOUTas described in the file header.