large increase in signatures showing as '\N' in pub-crashdata CSV starting 20110726

RESOLVED WONTFIX

Status

Socorro
General
RESOLVED WONTFIX
6 years ago
3 months ago

People

(Reporter: rhelmer, Unassigned)

Tracking

Trunk
x86
Mac OS X

Firefox Tracking Flags

(Not tracked)

Details

Attachments

(1 attachment)

(Reporter)

Description

6 years ago
Created attachment 549200 [details]
script for pulling jsonz based on input of ooids

Kairo pointed out that there was a sharp increase in crashes starting with the 20110726 CSV (https://crash-analysis.mozilla.com/crash_analysis/20110726/20110726-pub-crashdata.csv.gz)

I looked into this, and while we had 25 signatures of '\N' for 20110725, we had 3918 for 20110726. In both cases we had a little over 300k crashes, this is a jump of 0.008% to 1.3%

I wrote a script to pull the processed JSON and give a breakdown of what this '\N' signature meant, and see:

2202 Null signature
 220 Non-null signature

The rest could not be processed.

One common thread I saw for non-null signatures is that they appeared to be truncated, for example https://crash-stats.mozilla.com/report/index/f8682d8c-506c-47f5-99b0-d7e562110726 the signature is:
nsRefPtr<nsDOMWorkerProxiedXHRFunctions::GetResponseHeader>::~nsRefPtr<nsDOMWorkerProxiedXHRFunctions::GetResponseHeader>() | nsRefPtr<nsDocAccessible>::`scalar deleting destructor''(unsigned int) | nsTArrayElementTraits<nsRefPtr<nsCookie> >::Destruct(n...
(Reporter)

Comment 1

6 years ago
Changing the summary to reflect that the thing we are more concerned with is that there was a large increase in these signatures starting yesterday, which seems to be the case again today.

Based on the attached pull_jsonz.py script run yesterday, most of these are indeed null signatures (processed JSON missing the "signature" key).
Summary: non-null signatures showing as '\N' in pub-crashdata CSV → large increase in signatures showing as '\N' in pub-crashdata CSV starting 20110726
(Assignee)

Updated

6 years ago
Component: Socorro → General
Product: Webtools → Socorro
I don't think this is relevant anymore, so I'm going to close it out. Please reopen if there's still work to do here.
Status: NEW → RESOLVED
Last Resolved: 3 months ago
Resolution: --- → WONTFIX
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