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New Member

ACE serverfarm total connections failures

I have many server farms in various contexts and every single serverfarm shows something like this:

NDCD23ACERT1/Internal-1295# sh serverfarm FINPROD88_80 detail

serverfarm : FINPROD88_80, type: HOST

total rservers : 3

description : -

predictor : ROUNDROBIN

failaction : purge

total conn-dropcount : 0

---------------------------------

----------connections-----------

real weight state current total

---+---------------------+------+------------+----------+--------------------

rserver: FINPRODAPP5

10.1.129.39:8320 2 OUTOFSERVICE 2 138

total conn-failures : 348

rserver: FINPRODAW1

10.1.129.29:8320 1 OPERATIONAL 25 179

total conn-failures : 418

rserver: FINPRODAW2

10.1.129.30:8320 1 OPERATIONAL 8 165

total conn-failures : 456

The conn-failures counter keeps growning on all of the farms. What exactly could be the problem? People aren't complaining but it bothers me to see those counters grow.

Casey

2 REPLIES

Re: ACE serverfarm total connections failures

total conn-failures counter can increment due to several reasons

1. When Server sends RST to close the connection

2. When Client Sends an invalid HTTP request

3. If "persistence-rebalance" & "layer 7 class map" is configured and ACE doesnt find a L7 condition in client request.

So increments in the counter doesnt always means that there is a server problem :)

There are bugs reported for all the above conditions.I am not sure if they are fixed in the latest release.

Hope it helps

Syed

New Member

Re: ACE serverfarm total connections failures

I'm running A1(6.2) and the numbers are extremely suspicious. I don't think they are correct. I have 52 farms configured and every single one is showing a significantly large number of conn-failures. Generally around 50% of total connections.

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