Your message dated Sat, 26 Nov 2016 18:38:14 +0000 with message-id <[email protected]> and subject line Bug#845765: Removed package(s) from unstable has caused the Debian Bug report #725268, regarding nagios3: nagios.log - misleading errors about check results queue to be marked as done.
This means that you claim that the problem has been dealt with. If this is not the case it is now your responsibility to reopen the Bug report if necessary, and/or fix the problem forthwith. (NB: If you are a system administrator and have no idea what this message is talking about, this may indicate a serious mail system misconfiguration somewhere. Please contact [email protected] immediately.) -- 725268: http://bugs.debian.org/cgi-bin/bugreport.cgi?bug=725268 Debian Bug Tracking System Contact [email protected] with problems
--- Begin Message ---Package: nagios3 Version: 3.4.1-5+b1 Severity: minor Tags: upstream Dear Maintainer, this is reincarnation of the bug #522538 closed as unreproducible some time ago... I'm affected by this bug too, but fortunately I'm further in the observing the problem. The problem have appeared while preparing a new backup monitoring virtual host based on Debian Wheezy amd64. I have got up to a point with near the same configuration on the new server as on a production server. The difference I have noticed between the server's nagios.logs is, that a new node logs regularly: [1380716982] Error: Unable to rename file '/var/lib/nagios3/spool/checkresults/checkP5jroS' to '/var/lib/nagios3/spool/checkresults/c84vzxe': No such file or directory [1380716982] Warning: Unable to move file '/var/lib/nagios3/spool/checkresults/checkP5jroS' to check results queue. I have certainty the configurations of Nagios on both servers are the same because I'm using Unison to synchronize the server configurations. I have installed Systemtap to see the problem on the syscall level. I have not knowing the Nagios results processing, but have adapted some example Systemtap script, to monitor syscalls open, rename and unlink. 11978246 6312 (nagios3) open /var/lib/nagios3/spool/checkresults/checkP5jroS returned 8 11986098 26537 (nagios3) rename( /var/lib/nagios3/spool/checkresults/checkP5jroS -> /var/lib/nagios3/spool/checkresults/cMlI3we ) returned 0 11988931 26532 (nagios3) rename( /var/lib/nagios3/spool/checkresults/checkP5jroS -> /var/lib/nagios3/spool/checkresults/c84vzxe ) returned -2 11989054 26532 (nagios3) unlink /var/lib/nagios3/spool/checkresults/checkP5jroS returned -2 A nagios process (pid 26537) renamed result and another nagios process (pid 26532) later (cca 1ms later) tried to rename the same result file too. This was not the answer for why the two Nagios boxes behaves differently. I have started to compare installed packages and found the missing smbclient on the new server. I installed software without recommended packages motivated to keep the number of installed packages small. I'm monitoring a Samba share, so I have installed smbclient on the new Nagios server too. The errors in the nagios.log disappeared. :) I have setup another Nagios server on my destop (Debian Sid with nagios3 3.4.1-5+b1) and have simplified the check_disk_smb until I have comprehend the problem. Pieces of configuration and the script are attached so you can reproduce the problem. In the short: Perl check running in the embeded Perl interpreter can do a fork() syscall, but if the child process fails to exec() some external binary and exits Perl interpreter through exit() then the cleanup phase calling move_check_result_to_queue() (base/checks.c) is ran in the two places: in the parent process and also in the child process. This is the bug in the base/checks.c and should be fixed upstream. Probably could be sufficient to test if pidof running process not changed (I'm the parent) and call move_check_result_to_queue() only in the parent process. Thanks for your time on packaging Nagios! Best Regards -- Zito -- System Information: Debian Release: jessie/sid APT prefers unstable APT policy: (500, 'unstable'), (1, 'experimental') Architecture: amd64 (x86_64) Foreign Architectures: i386 Kernel: Linux 3.10-3-amd64 (SMP w/4 CPU cores) Locale: LANG=en_US.UTF-8, LC_CTYPE=cs_CZ.UTF-8 (charmap=UTF-8) Shell: /bin/sh linked to /bin/dash Versions of packages nagios3 depends on: ii nagios3-cgi 3.4.1-5+b1 ii nagios3-core 3.4.1-5+b1 nagios3 recommends no packages. Versions of packages nagios3 suggests: ii nagios-nrpe-plugin 2.13-3 -- no debconf information#! /usr/bin/perl -w # nagios: +epn use strict; my $pid = open my $pipe, "-|"; if (defined($pid)) { if ($pid) { } else { exit(1); } } else { exit(3); } wait; print "OK child has pid $pid\n"; exit(0);define command { command_name nagtest_check command_line /usr/local/bin/check_nagtest } define host { host_name nagtest alias nagtest check_command return-ok max_check_attempts 1 notifications_enabled 0 } define service { host_name nagtest service_description nagtest_service check_command nagtest_check max_check_attempts 1 check_interval 1 retry_interval 1 normal_check_interval 1 notifications_enabled 0 }#! /usr/bin/env stap global start function timestamp:long() { return gettimeofday_us() - start } function proc:string() { return sprintf("%d (%s)", pid(), execname()) } function filename_filter:long(filename) { return substr(filename, 0, 36) == "/var/lib/nagios3/spool/checkresults/" } probe begin { start = gettimeofday_us() } probe syscall.open.return { filename = user_string($filename) if ( filename_filter(filename) ) { printf("%d %s open %s returned %d\n", timestamp(), proc(), filename, $return) } } probe syscall.unlink.return { pathname = user_string($pathname) if ( filename_filter(pathname) ) { printf("%d %s unlink %s returned %d\n", timestamp(), proc(), pathname, $return) } } probe syscall.rename.return { oldname = user_string($oldname) newname = user_string($newname) if ( filename_filter(oldname) || filename_filter(newname) ) { printf("%d %s rename %s -> %s returned %d\n", timestamp(), proc(), oldname, newname, $return) } } probe kprocess.exec { printf("%d %s exec %s\n", timestamp(), proc(), filename) }
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--- Begin Message ---Version: 3.5.1.dfsg-2.2+rm Dear submitter, as the package nagios3 has just been removed from the Debian archive unstable we hereby close the associated bug reports. We are sorry that we couldn't deal with your issue properly. For details on the removal, please see https://bugs.debian.org/845765 The version of this package that was in Debian prior to this removal can still be found using http://snapshot.debian.org/. This message was generated automatically; if you believe that there is a problem with it please contact the archive administrators by mailing [email protected]. Debian distribution maintenance software pp. Scott Kitterman (the ftpmaster behind the curtain)
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