147 lines
4.8 KiB
Diff
147 lines
4.8 KiB
Diff
commit f54eddf494e474531e5af609bcc376037a918977
|
|
Author: Nathan Scott <nathans@redhat.com>
|
|
Date: Tue Apr 26 14:32:59 2022 +1000
|
|
|
|
pmdapostfix: harden against a not-yet-running postfix
|
|
|
|
Ensure the postfix PMDA can start and service requests even
|
|
if postfix is not yet started.
|
|
|
|
diff --git a/src/perl/PMDA/local.c b/src/perl/PMDA/local.c
|
|
index e223bde7a..33130bc5d 100644
|
|
--- a/src/perl/PMDA/local.c
|
|
+++ b/src/perl/PMDA/local.c
|
|
@@ -1,5 +1,5 @@
|
|
/*
|
|
- * Copyright (c) 2012-2017 Red Hat.
|
|
+ * Copyright (c) 2012-2017,2022 Red Hat.
|
|
* Copyright (c) 2008-2011 Aconex. All Rights Reserved.
|
|
*
|
|
* This program is free software; you can redistribute it and/or modify it
|
|
@@ -139,18 +139,15 @@ int
|
|
local_tail(char *file, scalar_t *callback, int cookie)
|
|
{
|
|
int fd = open(file, O_RDONLY | O_NDELAY);
|
|
- struct stat stats;
|
|
+ struct stat stats = {0};
|
|
int me;
|
|
|
|
- if (fd < 0) {
|
|
- pmNotifyErr(LOG_ERR, "open failed (%s): %s", file, osstrerror());
|
|
- exit(1);
|
|
- }
|
|
- if (fstat(fd, &stats) < 0) {
|
|
- pmNotifyErr(LOG_ERR, "fstat failed (%s): %s", file, osstrerror());
|
|
- exit(1);
|
|
- }
|
|
- lseek(fd, 0L, SEEK_END);
|
|
+ if (fd < 0)
|
|
+ pmNotifyErr(LOG_INFO, "open failed (%s): %s", file, osstrerror());
|
|
+ else if (fstat(fd, &stats) < 0)
|
|
+ pmNotifyErr(LOG_INFO, "fstat failed (%s): %s", file, osstrerror());
|
|
+ else
|
|
+ lseek(fd, 0L, SEEK_END);
|
|
me = local_file(FILE_TAIL, fd, callback, cookie);
|
|
files[me].me.tail.path = strdup(file);
|
|
files[me].me.tail.dev = stats.st_dev;
|
|
@@ -416,10 +413,11 @@ local_pmdaMain(pmdaInterface *self)
|
|
}
|
|
|
|
for (i = 0; i < nfiles; i++) {
|
|
- fd = files[i].fd;
|
|
/* check for log rotation or host reconnection needed */
|
|
if ((count % 10) == 0) /* but only once every 10 */
|
|
local_connection(&files[i]);
|
|
+ if ((fd = files[i].fd) < 0)
|
|
+ continue;
|
|
if (files[i].type != FILE_TAIL && !(__pmFD_ISSET(fd, &readyfds)))
|
|
continue;
|
|
offset = 0;
|
|
@@ -431,21 +429,16 @@ multiread:
|
|
(oserror() == EAGAIN) ||
|
|
(oserror() == EWOULDBLOCK)))
|
|
continue;
|
|
- if (files[i].type == FILE_SOCK) {
|
|
- close(files[i].fd);
|
|
- files[i].fd = -1;
|
|
- continue;
|
|
- }
|
|
- pmNotifyErr(LOG_ERR, "Data read error on %s: %s\n",
|
|
- local_filetype(files[i].type), osstrerror());
|
|
- exit(1);
|
|
+ close(files[i].fd);
|
|
+ files[i].fd = -1;
|
|
+ continue;
|
|
}
|
|
if (bytes == 0) {
|
|
if (files[i].type == FILE_TAIL)
|
|
continue;
|
|
- pmNotifyErr(LOG_ERR, "No data to read - %s may be closed\n",
|
|
- local_filetype(files[i].type));
|
|
- exit(1);
|
|
+ close(files[i].fd);
|
|
+ files[i].fd = -1;
|
|
+ continue;
|
|
}
|
|
/*
|
|
* good read ... data up to buffer + offset + bytes is all OK
|
|
diff --git a/src/pmdas/postfix/pmdapostfix.pl b/src/pmdas/postfix/pmdapostfix.pl
|
|
index ac46816bc..d6d3f4d3a 100644
|
|
--- a/src/pmdas/postfix/pmdapostfix.pl
|
|
+++ b/src/pmdas/postfix/pmdapostfix.pl
|
|
@@ -1,5 +1,5 @@
|
|
#
|
|
-# Copyright (c) 2012-2015 Red Hat.
|
|
+# Copyright (c) 2012-2015,2022 Red Hat.
|
|
# Copyright (c) 2009-2010 Josef 'Jeff' Sipek <jeffpc@josefsipek.net>
|
|
#
|
|
# This program is free software; you can redistribute it and/or modify it
|
|
@@ -56,8 +56,6 @@ my @postfix_received_dom = (
|
|
1 => 'smtp',
|
|
);
|
|
|
|
-my $setup = defined($ENV{'PCP_PERL_PMNS'}) || defined($ENV{'PCP_PERL_DOMAIN'});
|
|
-
|
|
sub postfix_do_refresh
|
|
{
|
|
QUEUE:
|
|
@@ -212,7 +210,7 @@ $logstats{"received"}{1} = 0;
|
|
|
|
# Note:
|
|
# Environment variables.
|
|
-# $PMDA_POSTFIX_QSHAPE: alternative executable qshape scrpipt (for QA)
|
|
+# $PMDA_POSTFIX_QSHAPE: alternative executable qshape script (for QA)
|
|
# ... over-rides default and command line argument.
|
|
# ... over-rides default arguments -b 10 -t $refresh
|
|
# $PMDA_POSTFIX_REFRESH: alternative refresh rate (for QA)
|
|
@@ -228,7 +226,7 @@ if (defined($ENV{'PMDA_POSTFIX_QSHAPE'})) {
|
|
$qshape = $ENV{'PMDA_POSTFIX_QSHAPE'};
|
|
$qshape_args = '';
|
|
}
|
|
-if (!$setup) { $pmda->log("qshape cmd: $qshape $qshape_args <qname>"); }
|
|
+unless (pmda_install()) { $pmda->log("qshape cmd: $qshape $qshape_args <qname>"); }
|
|
|
|
if (defined($ENV{'PMDA_POSTFIX_REFRESH'})) { $refresh = $ENV{'PMDA_POSTFIX_REFRESH'}; }
|
|
|
|
@@ -238,12 +236,15 @@ foreach my $file ( @logfiles ) {
|
|
}
|
|
}
|
|
if (defined($ENV{'PMDA_POSTFIX_LOG'})) { $logfile = $ENV{'PMDA_POSTFIX_LOG'}; }
|
|
-unless(defined($logfile))
|
|
-{
|
|
- $pmda->log("Fatal: No Postfix log file found in: @logfiles");
|
|
- die 'No Postfix log file found';
|
|
+unless (pmda_install()) {
|
|
+ if (defined($logfile)) {
|
|
+ $pmda->log("logfile: $logfile");
|
|
+ } else {
|
|
+ $pmda->log("Warning: assuming logfile: $logfiles[0] as no Postfix log found yet from: @logfiles");
|
|
+ }
|
|
}
|
|
-if (!$setup) { $pmda->log("logfile: $logfile"); }
|
|
+# set a good default if none found, before continuing
|
|
+unless (defined($logfile)) { $logfile = $logfiles[0]; }
|
|
|
|
$pmda->add_indom($postfix_queues_indom, \@postfix_queues_dom, '', '');
|
|
$pmda->add_indom($postfix_sent_indom, \@postfix_sent_dom, '', '');
|