[check_postgres] --exclude behavior doesn't seem to agree with the docs

Jeff Frost jeff at pgexperts.com
Fri Sep 16 20:49:43 UTC 2011


On Sep 16, 2011, at 1:44 PM, Guillaume Lelarge wrote:

>> I believe what was happening is that I was using this:
>> 
>> check_postgres.pl --port=5444 -u postgres -db jefftest   --exclude='~^pg_'
>> --exclude='sys.' --exclude='pg_catalog.'  --action=last_analyze
>> 
> 
> Why do you prepend ^pg_ with ~ ? If I get rid of the tilde, it works for
> me.

Oh! Because that is one of the examples in the documentation:

Exclude all items which start with the letters 'pg_', which contain the letters 'slon', or which are named 'sql_settings' or 'green'. Specifically check items with the letters 'prod' in their names, and always check the item named 'pg_relname':

 --exclude=~^pg_,~slon,sql_settings --exclude=green --include=~prod,pg_relname


> 
>> and I end up with this:
>> 
>> POSTGRES_LAST_ANALYZE CRITICAL: DB "jefftest" (host:jefftest) (port=5444)
>> pg_catalog.pg_ts_dict: 03:39 November 19, 2010 (41 weeks 5 days 9 hours 24
>> minutes)
>> 
>> but, if I remove the exclude with the regex, it works as expected.  Also, if I
>> combine the 3 excludes into a single option like so:
>> --exclude='~^pg_,sys.,pg_catalog.' it works as expected.
>> 
> 
> Here, the tilde isn't an issue because all pg_* are in pg_catalog*.


yes, it's not really blocking me, as I sorted out what arguments to use but I'm suggesting it might be a documentation issue since the example lists  ~^pg_ which doesn't appear to work as advertised.

---
Jeff Frost <jeff at pgexperts.com>
CTO, PostgreSQL Experts, Inc.
Phone: 1-888-PG-EXPRT x506
FAX: 415-762-5122
http://www.pgexperts.com/ 






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