Bug 1298977 - skyring crashes when mongod service is not running
Summary: skyring crashes when mongod service is not running
Alias: None
Product: Red Hat Storage Console
Classification: Red Hat
Component: core
Version: 2
Hardware: Unspecified
OS: Unspecified
Target Milestone: beta
: 2
Assignee: Nishanth Thomas
QA Contact: Lubos Trilety
Depends On:
TreeView+ depends on / blocked
Reported: 2016-01-15 15:14 UTC by Martin Bukatovic
Modified: 2016-08-23 19:45 UTC (History)
6 users (show)

Fixed In Version: rhscon-core-0.0.32-1.el7scon.x86_64
Doc Type: Bug Fix
Doc Text:
Clone Of:
Last Closed: 2016-08-23 19:45:49 UTC
Target Upstream Version:

Attachments (Terms of Use)
full skyring.log file (4.06 KB, text/plain)
2016-01-15 15:14 UTC, Martin Bukatovic
no flags Details

System ID Priority Status Summary Last Updated
Gerrithub.io 261493 None None None 2016-01-28 18:26:42 UTC
Gerrithub.io 261495 None None None 2016-01-28 18:27:17 UTC
Red Hat Product Errata RHEA-2016:1754 normal SHIPPED_LIVE New packages: Red Hat Storage Console 2.0 2017-04-18 19:09:06 UTC

Description Martin Bukatovic 2016-01-15 15:14:02 UTC
Created attachment 1115178 [details]
full skyring.log file

Description of problem

Skyring crashes when mongod service is not running.

While I understand that skyring requires mongodb to function properly,
null pointer error crash of skyring process is an unacceptable way to
handle this kind error state.

Version-Release number of selected component

# rpm -qa | grep rhscon

How reproducible


Steps to Reproduce

1. Install skyring on the server
2. Make sure mongod service is not running: `systemctl stop mongod`
3. Start skyring: `setsid skyring > ~/skyring.log 2>&1`
4. After a while, check /root/skyring.log file

note: in step 3, I start skyring daemon process manually because of BZ 1296123

Actual results

Skyring process crashes. Also see this excerpt from skyring.log:

2016-01-15T15:48:58.925+01:00 INFO     main.go:177 start] Starting event listener
2016-01-15T15:50:00.636+01:00 CRITICAL db.go:41 InitDBSession] Error: no reachable servers
2016-01-15T15:50:00.636+01:00 ERROR    main.go:188 start] Unable to initialize DB
panic: runtime error: invalid memory address or nil pointer dereference
[signal 0xb code=0x1 addr=0x0 pc=0x4849b4]

(full skyring.log file is attached to this BZ)

Expected results

Skyring process reports the issue in the log without crashing.

Comment 3 Jeff Applewhite 2016-03-18 18:21:29 UTC
might be a duplicate of 1299009, at least very similar

Comment 4 Martin Bukatovic 2016-03-18 18:38:16 UTC
(In reply to Jeff Applewhite from comment #3)
> might be a duplicate of 1299009, at least very similar

Yes, both issues are similar. That said, from my point of view,
I saw 2 issues which made skyring crash. Even if both issues were
fixed by a single patch, during verification I need to test
2 different scenarios (one for this BZ and 2nd for the other one).

Comment 5 Jeff Applewhite 2016-03-18 18:55:04 UTC
right - ok

Comment 7 Lubos Trilety 2016-07-19 19:37:17 UTC
I stopped mongod.service and make it not start-able and then run skyring.service

2016-07-19T21:17:06.677+02:00 WARNING  monitoring.go:269 FetchStatFromGraphiteWithErrorIndicate] skyring:13fa20d1-cc8f-452c-88bd-a5f284e0b9db - Error Failed to get the instant stat of ping.ping-dhcp46-15_lab_eng_blr_redhat_com resource of dhcp46-27_lab_eng_blr_redhat_com
2016-07-19T21:17:42.687+02:00 INFO     main.go:251 func·005] Signal:%!(EXTRA syscall.Signal=terminated)
2016-07-19T21:32:24.236+02:00 CRITICAL db.go:41 InitDBSession] Error: no reachable servers
2016-07-19T21:32:24.244+02:00 ERROR    skyring.go:517 InitializeApplication] Unable to initialize DB
2016-07-19T21:32:24.244+02:00 CRITICAL main.go:210 start] Unable to initialize the application. err: no reachable servers

No null pointer crash anymore.

Comment 9 errata-xmlrpc 2016-08-23 19:45:49 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.


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