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From be21e10cf30e66215e986ab900637b32e502a29a Mon Sep 17 00:00:00 2001
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From: Lennart Poettering <lennart@poettering.net>
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Date: Tue, 10 Nov 2015 16:53:00 +0100
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Subject: [PATCH] journald: dispatch SIGTERM/SIGINT with a low priority
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Let's make sure to process all queued log data before exiting, so that
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we don't unnecessary lose messages when shutting down.
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https://github.com/systemd/systemd/pull/1812#issuecomment-155149871
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Cherry-picked from: b374689c02c681671a3c3c0b0fd3add32386b442
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Related: #1318994
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---
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src/journal/journald-server.c | 12 ++++++++++++
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1 file changed, 12 insertions(+)
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diff --git a/src/journal/journald-server.c b/src/journal/journald-server.c
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index 275224dc9..2b7ecd09a 100644
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--- a/src/journal/journald-server.c
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+++ b/src/journal/journald-server.c
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@@ -1284,10 +1284,22 @@ static int setup_signals(Server *s) {
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if (r < 0)
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return r;
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+ /* Let's process SIGTERM late, so that we flush all queued
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+ * messages to disk before we exit */
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+ r = sd_event_source_set_priority(s->sigterm_event_source, SD_EVENT_PRIORITY_NORMAL+20);
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+ if (r < 0)
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+ return r;
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+
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+ /* When journald is invoked on the terminal (when debugging),
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+ * it's useful if C-c is handled equivalent to SIGTERM. */
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r = sd_event_add_signal(s->event, &s->sigint_event_source, SIGINT, dispatch_sigterm, s);
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if (r < 0)
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return r;
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+ r = sd_event_source_set_priority(s->sigint_event_source, SD_EVENT_PRIORITY_NORMAL+20);
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+ if (r < 0)
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+ return r;
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+
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return 0;
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}
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