[THIN] Re: No connections when DS down

After FR2 you'll start having the problem at about 96 hours since last
connection to the DS>

 

I have had real and simulated DS failures.Of course all with SQL DS's
and the Citrix servers continue to humm along just fine.

 

Ron Oglesby

Senior Technical Architect

 

RapidApp

Office 312.372.7188

Mobile 815.325.7618

email roglesby@xxxxxxxxxxxx

 

-----Original Message-----
From: Rallo, Tony [mailto:Tony.Rallo@xxxxxxxxxxxxxx] 
Sent: Friday, September 26, 2003 7:54 AM
To: 'thin@xxxxxxxxxxxxx'
Subject: [THIN] Re: No connections when DS down

 

I have had my SQL database down since this post came out.  No issues for
anyone connecting so far and I have even rebooted servers.  I am going
to keep it down for a few days to see when I start to have problems.  

 

I am running 2003/FR3

 

Anthony Rallo

Systems Engineer

773-399-7552

tony.rallo@xxxxxxxxxxxxxx

 

US Cellular

Chicago Corporate Office

 

-----Original Message-----
From: Erik Blom [mailto:erik.blom@xxxxxxxxxx] 
Sent: Thursday, September 25, 2003 8:23 AM
To: thin@xxxxxxxxxxxxx
Subject: [THIN] Re: No connections when DS down

 

The IMA service is started on all servers.  BTW, this is only a test.
My DS is not down, but I tested this at multiple clients and always came
up with the same results: no connections...

Anyone else tested this?

Erik

Ryan Lambert wrote:



Worth a shot. Is the IMA service started on those servers? If not,
definitely try that.

 

-----Original Message-----
From: Erik Blom [mailto:erik.blom@xxxxxxxxxx] 
Sent: Thursday, September 25, 2003 8:36 AM
To: thin@xxxxxxxxxxxxx
Subject: [THIN] Re: No connections when DS down

 

Ryan,

thanks for your input.  Do I have to do anything to get things working
again after the DS is down, or does this happen automatically?  I read
in the Advanced Concepts Guide the following:

<snip>
All servers in the farm query the data store when they are started. The
following registry setting determines whether or not IMA requires a
connection to the data
store to start:
HKEY_LOCAL_MACHINE\SOFTWARE\Citrix\IMA\Runtime\PSRequired (DWORD)
Value: 0 or 1
If the value is 0, IMA can start without a connection to the data store.
If the value is 1, IMA requires a connection to the data store to start.
After the first time the IMA
Service starts successfully, the value is set to 0.
</snip>

Maybe I should set this value to 0 manually to get clients to be able to
connect?

Erik

Ryan Lambert wrote:

You should be able to connect using the local host cache of the Citrix
servers in the farm, unless it's corrupted or something... 
 
But interesting.
 
-----Original Message-----
From: Erik Blom [mailto:erik.blom@xxxxxxxxxx] 
Sent: Thursday, September 25, 2003 8:05 AM
To: thin@xxxxxxxxxxxxx
Subject: [THIN] No connections when DS down
 
Hi,
 
Something I don't get: when the Data Store is down, no client seems to 
be able to connect to a Citrix server.  I thought that the grace period 
for datastore non-availability made sure that people could still connect
 
to a Citrix server, while the DS was being 'troubleshooted'.  Am I right
 
on this?  I checked that the Data Collector was running (it runs on a 
different machine than the datastore) so IMHO technically clients should
 
be able to connect??
 
Erik
 
 
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