Subject Re: [Firebird-Java] Re: Is there a limit of connections?
Author Niki Ivanchev
I can remember an old thread in firebird-users list and some one stated
that firebird have hardcoded limit of 1024 connections.
Regards
Niki

Roman Rokytskyy wrote:

>Hi,
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>>Is there any limitation related to JayBird?
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>No. But you have limitations of the JVM itself, for example maximum
>heap size.
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>Answers to your previous questions I do not know. Type of the server,
>number of CPU, memory, OS etc. matters. There was something about
>20,000 open statements, but I do not know if that is per connection or
>per engine. What I know, that it is much more easier to saturate your
>JVM than to saturate the server. Assume that each connection executes
>in its own thread, last year my JVM was saturated with 80 threads
>running multi-user AS3AP suite. There was one more machine running the
>same test also allocating 40 connections. Firebird 1.0 CS (2x750 MHz
>CPU, 2 GB RAM, SCSI RAID 5, Linux) worked ok with 120 connections and
>could handle more load.
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>So, in order to find the limit you have to have many client machines
>and one single server. Take your typical DB, your typical queries and
>run tests in parallel.
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>Roman
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>Yahoo! Groups Links
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