Re: AW: Keeping statistics after a reload

2014-02-28 Thread PiBa-NL

Hi Andreas,

Its not like your question was wrong, but probably there is no 
good/satisfying short answer to this, and it was overrun by other mails...


As far as i know it is not possible to keep this kind information 
persisted in haproxy itself when a config restart is needed.


The -sf only makes sure old connections will nicely be closed when they 
are 'done'.


I have 'heard' of statistics gathering tools that use the haproxy unix 
stats socket to query the stats and store the information in a separate 
database that way you could get continued statistics after the config is 
changed.. I don't have any examples on how to do this or have a name of 
such a tool in mind though.. Though googling for haproxy monitoring 
quickly shows some commercial tools that have haproxy plugins and 
probably would provide answers to the questions you have.


Maybe others on the list do use programs/scripts/tools to also keep 
historical/cumulative data for haproxy and can share their experience 
with it?


Greets PiBa-NL

Andreas Mock schreef op 28-2-2014 16:33:

Hi all,

the list is normally really responsive. In this case nobody
gave an answer. So, I don't know whether my question was such a
stupid one that nobody wanted to answer.

So, I bring it up again in the hope someone is answering:
Is there a way to reload the configuration without loosing
current statistics? Or is this conceptually not possible?

Best regards
Andreas Mock

-Urspr√ľngliche Nachricht-
Von: Andreas Mock [mailto:andreas.m...@drumedar.de]
Gesendet: Montag, 24. Februar 2014 16:36
An: haproxy@formilux.org
Betreff: Keeping statistics after a reload

Hi all,

is there a way to reload a haproxy config without resetting the
statistics shown on the stats page?

I used

haproxy -p /var/run/haproxy.pid -sf $(cat /var/run/haproxy.pid)

to make such a reload. But after that all statistics are reset.

Best regards
Andreas Mock








Re: AW: Keeping statistics after a reload

2014-02-28 Thread Patrick Hemmer
I have seen feature requests in the past that when haproxy reloads, to
pull the health status of the servers so that haproxy knows their state
without having to health check them. Willy has said he liked the idea
(http://marc.info/?l=haproxym=139064677914723). If this gets
implemented, it would probably be a minor detail to not only dump the
up/down state, but all stats.

-Patrick




*From: *PiBa-NL piba.nl@gmail.com
*Sent: * 2014-02-28 11:15:19 E
*To: *Andreas Mock andreas.m...@drumedar.de, haproxy@formilux.org
haproxy@formilux.org
*Subject: *Re: AW: Keeping statistics after a reload

 Hi Andreas,

 Its not like your question was wrong, but probably there is no
 good/satisfying short answer to this, and it was overrun by other
 mails...

 As far as i know it is not possible to keep this kind information
 persisted in haproxy itself when a config restart is needed.

 The -sf only makes sure old connections will nicely be closed when
 they are 'done'.

 I have 'heard' of statistics gathering tools that use the haproxy unix
 stats socket to query the stats and store the information in a
 separate database that way you could get continued statistics after
 the config is changed.. I don't have any examples on how to do this or
 have a name of such a tool in mind though.. Though googling for
 haproxy monitoring quickly shows some commercial tools that have
 haproxy plugins and probably would provide answers to the questions
 you have.

 Maybe others on the list do use programs/scripts/tools to also keep
 historical/cumulative data for haproxy and can share their experience
 with it?

 Greets PiBa-NL

 Andreas Mock schreef op 28-2-2014 16:33:
 Hi all,

 the list is normally really responsive. In this case nobody
 gave an answer. So, I don't know whether my question was such a
 stupid one that nobody wanted to answer.

 So, I bring it up again in the hope someone is answering:
 Is there a way to reload the configuration without loosing
 current statistics? Or is this conceptually not possible?

 Best regards
 Andreas Mock

 -Urspr√ľngliche Nachricht-
 Von: Andreas Mock [mailto:andreas.m...@drumedar.de]
 Gesendet: Montag, 24. Februar 2014 16:36
 An: haproxy@formilux.org
 Betreff: Keeping statistics after a reload

 Hi all,

 is there a way to reload a haproxy config without resetting the
 statistics shown on the stats page?

 I used

 haproxy -p /var/run/haproxy.pid -sf $(cat /var/run/haproxy.pid)

 to make such a reload. But after that all statistics are reset.

 Best regards
 Andreas Mock