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
Keywords:
Status: CLOSED ERRATA
Alias: nova_debug_dump_4.0.z
Product: Red Hat OpenStack
Classification: Red Hat
Component: openstack-nova
Version: 4.0
Hardware: Unspecified
OS: Unspecified
high
medium
Target Milestone: z4
: 4.0
Assignee: Vladan Popovic
QA Contact: Vladan Popovic
URL:
Whiteboard:
Depends On: nova_debug_dump_5.0
Blocks: 1024651
TreeView+ depends on / blocked
 
Reported: 2014-02-28 21:26 UTC by Russell Bryant
Modified: 2023-09-18 09:58 UTC (History)
8 users (show)

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.
Clone Of: nova_debug_dump_5.0
Environment:
Last Closed: 2014-05-29 20:35:22 UTC
Target Upstream Version:
Embargoed:

Attachments (Terms of Use)


Links
System ID Private Priority Status Summary Last Updated
OpenStack gerrit 32445 0 None None None Never
OpenStack gerrit 69058 0 None None None Never
Red Hat Product Errata RHSA-2014:0578 0 normal SHIPPED_LIVE Moderate: openstack-nova security, bug fix, and enhancement update 2014-05-30 00:27:05 UTC

Comment 1 Nikola Dipanov 2014-04-08 10:30:58 UTC 
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 20:35:22 UTC 
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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