FacebookTwitterLinkedIn
Login / Register

Login / Register

IUG FORUM

Stay always connected!
  1. Gina Solares
  2. Sierra/ Millennium/ Encore
  3. Tuesday, January 02 2018, 11:29 AM
  4.  Subscribe via email
Hi all,

How closely are you looking at your WAM statistics? Do you find them useful for analyzing usage or diagnosing problems?

We've been dealing with persistent WAM proxy errors, so I thought I'd take a closer look at our logs. Our numbers for the Bad Request (400) category have been increasing significantly over the past few months. But based on my reading of relevant pages in CSDirect/Supportal/manual, etc. I'm still not quite sure how to interpret these numbers.

Thanks for any comments or advice you can share about how you're using or interpreting your WAM stats.

Best,
Gina

Gina Solares
Head of Cataloging and Metadata Management
Gleeson Library | Geschke Center
University of San Francisco
(415) 422-5361 | gsolares@usfca.edu

gsolares@usfca.edu
Comment
There are no comments made yet.
Add Comment
Gina Solares Accepted Answer
0
Votes
Undo
Hi Jennifer,

I've read the III explanation for why users are seeing the 502 errors, and we're also restarting the web and proxy servers daily to clear the cache as a workaround. The amount of Bad gateway (502) category traffic in our wam stats has been fluctuating, but not rising continually. Since there's an explanation and a workaround for this error, I'm less concerned about that category.

In addition to the identified 502s, our users are reporting other connection errors including a generic "Proxy Error" (with no associated http error code displayed in the browser), and yes, we've got an open ticket for that, too.

But even though we've been tracking the number of of times a patron reports that kind of error to us, there's a sense among staff that this is happening much more frequently than it's reported. So I was hoping to find some data in the wam stats that could confirm or disprove that perception.

Thanks for the link to your forum post on 401 errors & the update you posted. Due to (perhaps similar) authentication/URL problems, ~1.5 years ago we made the decision to make users authenticate prior to their EDS searching. It's not ideal, but it reduced the number of post-search authentication issues reported.

gsolares@usfca.edu
Comment
There are no comments made yet.
Add Comment
Jennifer Faist Accepted Answer
0
Votes
Undo
Hi Gina,

We are seeing 401 errors because of the WAM/SSO bug of malformed URLs. I've posted about this on the forum already: http://innovativeusers.org/index.php/iug-forum/sierra-millennium-encore/11083-malformed-url-with-wam-sso-https-links.html
Out ticket is in Software Engineering. I've also heard from the College of Professional and Continuing Education (CPCE) in Hong Kong who also has a ticket for this in Software Engineering, and they've been seeing the issue for a long time.

We also see many 502 errors on some of our resources. This is a cache issue, and we've resorted to restarting the web and proxy servers daily to clear the cache as a workaround. There are multiple threads in the old listserv archives. (Search for "502" in the subject for 2014-2015.) It seems to be a problem with dynamic IP addresses from the vendors and cache issues. Do you have a ticket open with Innovative?

Jennifer

jennifer.faist@artcenter.edu
Comment
There are no comments made yet.
Add Comment
Gina Solares Accepted Answer
0
Votes
Undo
Hi Jennifer,

Thanks so much for your helpful response. You've given me some great examples of how I might interpret/use the wam statistics in re: trends & troubleshooting. We've been using vendor provided usage statistics for our annual usage analyses & reporting, and you're right, I don't see the WAM stats as a replacement for those.

We've got a filter in place, and I was interested to see our trends in the Bad Request (400) & Bad gateway (502) categories. We continue to have reports of "proxy errors" and so I was trying to determine whether the WAM stats could give me a sense of actual frequency without having to rely on anecdotes. It's not clear to me that the Bad Request (400) category is related to a WAM proxy error, but that category has been increasing steadily each month for us, regardless of the total overall traffic through WAM.

Gina Solares
Head of Cataloging and Metadata Management
Gleeson Library | Geschke Center
University of San Francisco
(415) 422-5361 | gsolares@usfca.edu

gsolares@usfca.edu
Comment
There are no comments made yet.
Add Comment
Jennifer Faist Accepted Answer
0
Votes
Undo
Hi Gina,

What the WAM numbers mean depends on your WAM filter. If you don't have a WAM filter, then the numbers are just counting the WAM passthroughs. So, for a resource with lots of image calls, the numbers can be very high compared to a journal database where results screens just have text and links. Consequently, it's not very good for comparing one resource to another without a filter, however, you can see trends within a particular resource. It can also be helpful in determining when your users are most active, or least active if you are looking for the best time for planned maintenance. That being said, we don't rely too heavily on our WAM stats as usage indicators. Most vendors have a way of downloading stats from the administrator's interface, or by asking your rep for them. We compile these vendor stats in a master spreadsheet for collection development decisions and for filling out various college and library surveys.

I did find the WAM stats valuable in troubleshooting a recent SSO failure. I was able to pinpoint the hour of failure by looking at the WAM stats and finding the hour when all traffic dropped down to a trickle. This helped in isolating the cause.

Also, if the WAM statistics are full, it will stop collecting data, so it is important to download and clear the oldest data. I usually do that each year. I run each of the reports for the oldest year, and then clear the data for that year. There is a warning message when you are nearing full capacity.

Jennifer Faist
Library Systems & Digital Collections Administrator
ArtCenter College of Design

jennifer.faist@artcenter.edu

jennifer.faist@artcenter.edu
Comment
There are no comments made yet.
Add Comment
  • Page :
  • 1


There are no replies made for this post yet.
Be one of the first to reply to this post!
Guest
Submit Your Response
Upload files or images for this discussion by clicking on the upload button below. Supports gif,jpg,png,pdf,ppt,pptx,doc,docx,xls,xlsx,,txt,rtf,jrxml
• Remove Upload Files (Maximum File Size: 2 MB)
You may insert polls into your post. The poll would then appear in the post.
Vote Options
Captcha
To protect the site from bots and unauthorized scripts, we require that you enter the captcha codes below before posting your question.