Looking hrough the Jonas mailing list I coulnd't find any similar issue so I
want to ask about situation we have discovered.
This week we switched from Jonas 2.0 to Jonas 2.1.1 and then to Jonas 2.2.2
running on JEREMIE
Sice then we are seeing this problem. Every time we call to Jons to retrieve
some entity beans, the thread count for the Jonas process keeps increasing.
We are using CMP and are running on Windows 2000. We have tried both, JDK
1.2.2.006 and JDK 1.3.0.001 with no difference. To see number of thread we
use Windows NT Task Manager Processes tab with thread count enabled.
This problem doesn't occur when using Jonas 2.2.2 using RMI.
The numbers I list here are thread counts from the comparison test we did
(60 beans deployed)
Jonas 2.0 using JEREMIE Jonas 2.1.1/2.2.2 using JEREMIE
Jonas 2.1.1/2.2.2 using RMI
Initial 23
~102 105
Retrieved
~10 beans 23 ~142
105
+ ~24 beans 23 ~187
105
+~8 beans 23 ~199
105
+~40beans 23 ~264
105
+~900beans 23 ~1400
105
One symtom of the problem is that it takes a long time to shutdown or kill
Jonas since all the thread needs to be destroyed. Another symptom is the
impact on performance (about 50% slower).
>From this test we guess that the problem is not in Jonas itself but in
JEREMIE (whatever was changed since version 2.0). Can please anybody verify
if you saw similar problems and suggest what can we do to solve it?
Regards,
Miroslav Halas
Software Architect
Compuware Corp.
15305 Dallas Parkway Suite 900
Addison, TX 75001
phone: 9720-960-0960
fax: 972-960-8489
email: [EMAIL PROTECTED]
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