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Bug #8168

closed

If syslog service is stopped, it is not restarted automatically by rudder-agent, so agent doesn't report anything

Added by Nicolas CHARLES over 8 years ago. Updated over 2 years ago.

Status:
Released
Priority:
2
Assignee:
Alexis Mousset
Category:
System techniques
Target version:
4.1.4
Pull Request:
https://github.com/Normation/rudder-t...
Severity:
Critical - prevents main use of Rudder | no workaround | data loss | security
UX impact:
User visibility:
Operational - other Techniques | Technique editor | Rudder settings
Effort required:
Medium
Priority:
0
Name check:
Fix check:
Regression:

Description

On a sles11, if syslog-ng is stop, running the agent won't restart it
So the node doesn't report a thing, and the node is in the "no answer" state - and won't auto-heal

we should automatically restart the appropriate syslog deamon when none is running

Fails at least on SLES11 rudder 3.1, but most likely on previous version of Rudder

Subtasks 2 (0 open — 2 closed)

Bug #10949: Agent output contains error because of new syslog service checksReleasedBenoît PECCATTEActions
Bug #10959: We should only use the "syslog" service on SLES11ReleasedBenoît PECCATTEActions

Related issues 1 (0 open — 1 closed)

Related to Rudder - Bug #10758: No report on Debian 8RejectedActions
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 #1

Updated by Jonathan CLARKE over 8 years ago

  • Priority changed from 1 (highest) to 2

This is easily fixed by adding a call to "service_ensure_running" in the common promises.

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 #2

Updated by Jonathan CLARKE over 8 years ago

  • Assignee set to Nicolas CHARLES
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 #3

Updated by Nicolas CHARLES over 8 years ago

  • Target version changed from 3.1.10 to 2.11.21

Actually, this was never implemented :/

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 #4

Updated by Nicolas CHARLES over 8 years ago

Ha - i'm hitting an unexpected issue: how do I know which syslog service I shall start in priority ?
For instance, if a system is provisionned with ksyslog, and then syslog-ng is installed, how can I detect that syslog-ng has precedence over ksyslog ?

I could service_check_running on each of syslog_ng, rsyslog, syslog, and if any of them is up and running don't do anything, else start the most complex one ? (syslog-ng > rsyslog > syslog)

What do you think of it ?

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 #5

Updated by Jonathan CLARKE over 8 years ago

  • Assignee changed from Nicolas CHARLES to Alexis Mousset

Nicolas CHARLES wrote:

Ha - i'm hitting an unexpected issue: how do I know which syslog service I shall start in priority ?
For instance, if a system is provisionned with ksyslog, and then syslog-ng is installed, how can I detect that syslog-ng has precedence over ksyslog ?

I could service_check_running on each of syslog_ng, rsyslog, syslog, and if any of them is up and running don't do anything, else start the most complex one ? (syslog-ng > rsyslog > syslog)

This order is subjective, so we shouldn't do that.

What do you think of it ?

On SuSE, this is quite easy because there is a config file in /etc that determines which syslog is in use.

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 #6

Updated by Alexis Mousset over 8 years ago

  • Status changed from New to In progress
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 #7

Updated by Alexis Mousset over 8 years ago

Not that easy on SuSE either (with the "syslog" pseudo-service which point to the actual logging service), because service_ensure_running("syslog") ends up greping the name of the service in ps output (and does not find it because syslog is never running), and therefore tries to start it on every run.

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 #8

Updated by Jonathan CLARKE over 8 years ago

  • Translation missing: en.field_tag_list changed from Sponsored to Sponsored, Quick and important, Next minor release
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 #9

Updated by Vincent MEMBRÉ over 8 years ago

  • Target version changed from 2.11.21 to 2.11.22
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 #10

Updated by Vincent MEMBRÉ over 8 years ago

  • Target version changed from 2.11.22 to 2.11.23
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 #11

Updated by Vincent MEMBRÉ over 8 years ago

  • Target version changed from 2.11.23 to 2.11.24
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 #12

Updated by Vincent MEMBRÉ over 8 years ago

  • Target version changed from 2.11.24 to 308
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 #13

Updated by Vincent MEMBRÉ over 8 years ago

  • Target version changed from 308 to 3.1.14
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 #14

Updated by Vincent MEMBRÉ about 8 years ago

  • Target version changed from 3.1.14 to 3.1.15
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 #15

Updated by Vincent MEMBRÉ about 8 years ago

  • Target version changed from 3.1.15 to 3.1.16
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 #16

Updated by Vincent MEMBRÉ about 8 years ago

  • Target version changed from 3.1.16 to 3.1.17
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 #17

Updated by Vincent MEMBRÉ about 8 years ago

  • Target version changed from 3.1.17 to 3.1.18
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 #18

Updated by Vincent MEMBRÉ almost 8 years ago

  • Target version changed from 3.1.18 to 3.1.19
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 #19

Updated by Alexis Mousset almost 8 years ago

  • Status changed from In progress to New
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 #20

Updated by Jonathan CLARKE almost 8 years ago

  • Severity set to Major - prevents use of part of Rudder | no simple workaround
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 #21

Updated by François ARMAND over 7 years ago

  • Severity changed from Major - prevents use of part of Rudder | no simple workaround to Critical - prevents main use of Rudder | no workaround | data loss | security
  • User visibility set to Operational - other Techniques | Technique editor | Rudder settings

We are setting it to "critical" because data are lost (no reports during the period).

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 #22

Updated by Benoît PECCATTE over 7 years ago

  • Priority set to 71
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 #23

Updated by Alexis Mousset over 7 years ago

The only easy fix is for SLES11 (syslog pseudo-service) on Rudder 4.1 (because of the new service methods). All other cases require some more thinking about the issue.

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 #24

Updated by Vincent MEMBRÉ over 7 years ago

  • Target version changed from 3.1.19 to 3.1.20
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 #25

Updated by Jonathan CLARKE over 7 years ago

  • Assignee deleted (Alexis Mousset)
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 #26

Updated by Alexis Mousset over 7 years ago

  • Effort required set to Medium
  • Priority changed from 71 to 70

This is a medium issue because we do not know how to properly detect the service to start in the general case.

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 #27

Updated by Vincent MEMBRÉ over 7 years ago

  • Target version changed from 3.1.20 to 3.1.21
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 #28

Updated by François ARMAND over 7 years ago

  • Related to Bug #10758: No report on Debian 8 added
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 #29

Updated by Jonathan CLARKE over 7 years ago

  • Translation missing: en.field_tag_list changed from Sponsored, Quick and important, Next minor release to Sponsored, Next minor release
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 #30

Updated by Benoît PECCATTE over 7 years ago

  • Assignee set to Benoît PECCATTE
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 #31

Updated by Benoît PECCATTE over 7 years ago

  • Target version changed from 3.1.21 to 4.1.4

Let's ensure running all syslog services present.

This will work in all the cases except when someone installs 2 syslog services and doesn't configure them to work together.

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 #32

Updated by Benoît PECCATTE over 7 years ago

  • Status changed from New to In progress
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 #33

Updated by Benoît PECCATTE over 7 years ago

  • Status changed from In progress to Pending technical review
  • Assignee changed from Benoît PECCATTE to Alexis Mousset
  • Pull Request set to https://github.com/Normation/rudder-techniques/pull/1150
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 #34

Updated by Benoît PECCATTE over 7 years ago

  • Status changed from Pending technical review to Pending release
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 #35

Updated by Alexis Mousset over 7 years ago

  • Subject changed from If syslog-ng is stopped, it is not restarted automatically by rudder-agent, so agent doesn't report anything to If syslog service is stopped, it is not restarted automatically by rudder-agent, so agent doesn't report anything
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 #36

Updated by Alexis Mousset over 7 years ago

  • Status changed from Pending release to Released

This bug has been fixed in Rudder 4.1.4 which was not released (see changelog for details), and is available in Rudder 4.1.5.

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 #37

Updated by Alexis Mousset over 2 years ago

  • Priority changed from 70 to 0
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