How to inspect blocked queries - Mailing list pgsql-general

From Randall F. Kern
Subject How to inspect blocked queries
Date
Msg-id E379007FADE7104B8346218F322A8BAE4E89@sammamish-dc.spoke.net
Whole thread Raw
Responses Re: How to inspect blocked queries  (Tom Lane <tgl@sss.pgh.pa.us>)
List pgsql-general
I have an web application that sometimes hangs.  When I run ps I see a
postgresql thread that says "INSERT waiting" (I don't have the exact
text in front of me, but it's similar to that).  When this happens my
only recourse is to restart my webserver or database.

Now most likely I have another transaction that hasn't been committed or
locks tables in a different order, but I don't see it in the output from
ps.  Is there anyway for me to inspect the pending queries in postgesql
so I can track this down?

Thanks,
-Randy

pgsql-general by date:

Previous
From: Ned Lilly
Date:
Subject: hang on (was: New Book: PostgreSQL: The Elephant Never Forgets)
Next
From: Bruce Momjian
Date:
Subject: Re: New Book: PostgreSQL: The Elephant Never Forgets