Bug 1071469 – [RFE][nova]: Provide for a live debug dump of system state

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Bug 1071469 - (nova_debug_dump_4.0.z) [RFE][nova]: Provide for a live debug dump of system state

Summary:	[RFE][nova]: Provide for a live debug dump of system state

Status:	CLOSED ERRATA

Aliases:	nova_debug_dump_4.0.z

Product:	Red Hat OpenStack
Classification:	Red Hat
Component:	openstack-nova (Show other bugs)
Sub Component:
Version:	4.0
Hardware:	Unspecified Unspecified

Priority	high Severity medium
Target Milestone:	z4
Target Release:	4.0
Assigned To:	Vladan Popovic
QA Contact:	Vladan Popovic
Docs Contact:

URL:
Whiteboard:
Keywords:	FutureFeature, MoveUpstream, OtherQA, Triaged, ZStream

Depends On:	nova_debug_dump_5.0
Blocks:	1024651
	Show dependency tree / graph

Reported:	2014-02-28 16:26 EST by Russell Bryant
Modified:	2016-04-26 14:24 EDT (History)
CC List:	10 users (show)

See Also:
Fixed In Version:	openstack-nova-2013.2.3-3.el6ost
Doc Type:	Enhancement
Doc Text:	Feature: Added the ability to obtain a debug dump of the system state for an OpenStack service based process. For example,upon sending SIGUSR1, trigger a dump of all native threads, green threads, live config and any other relevant info. Reason: When troubleshooting production systems it is desirable to be able to trace all data base queries, web REST calls, messaging service RPC calls, and libvirt API calls associated with invocation of a user command or background job. Result: You are now able to collect timing information and stack call paths for each item as a tool for analysing a series of requests to identify slow points / scalability issues.
Story Points:	---
Clone Of:	nova_debug_dump_5.0
Environment:
Last Closed:	2014-05-29 16:35:22 EDT
Type:	Bug
Regression:	---
Mount Type:	---
Documentation:	---
CRM:
Verified Versions:
Category:	---
oVirt Team:	---
RHEL 7.3 requirements from Atomic Host:
Cloudforms Team:	---

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External Trackers
Tracker	ID	Priority	Status	Summary	Last Updated
OpenStack gerrit	32445	None	None	None	Never
OpenStack gerrit	69058	None	None	None	Never
Red Hat Product Errata	RHSA-2014:0578	normal	SHIPPED_LIVE	Moderate: openstack-nova security, bug fix, and enhancement update	2014-05-29 20:27:05 EDT

Groups: None (edit)

Comment 1 Nikola Dipanov 2014-04-08 06:30:58 EDT

QE team: Veryfiying this can be done as follows:

1) Send all nova processes SIGUSR1
2) Make sure each one of them creates a /var/log/nova/$SERV_NAME_gurumeditation_$(date +"%Y%m%d%H%M%S") and that the file contains details about running processes threads, configuration etc.

Comment 6 errata-xmlrpc 2014-05-29 16:35:22 EDT

Since the problem described in this bug report should be
resolved in a recent advisory, it has been closed with a
resolution of ERRATA.

For information on the advisory, and where to find the updated
files, follow the link below.

If the solution does not work for you, open a new bug report.

http://rhn.redhat.com/errata/RHSA-2014-0578.html

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