PQ96752; 4.0.6: 1024 Connection limit using JNIReader threads
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Abstract
1024 Connection limit using JNIReader threads
 
Download Description
PQ96752 resolves the following problem:

PROBLEM SUMMARY:

USERS AFFECTED:
WebSphere Application Server users utilizing JNIReader threads with their ORB.

PROBLEM DESCRIPTION:
After 1024 active connections, the Application Server ORB will start rejecting connections when using JNIReader threads with the ORB.

RECOMMENDATION:
When using JNIReader threads with the ORB, Application Server will report the following error after 1024 active connections: JORB00105: None of the native code reader threads has room in its queue for a new Socket to watch, a COMM_FAILURE was thrown. Application Server will stop accepting connections at this point until connections are released. This happens no matter how manyJNIReaders the administrator specified to use.

PROBLEM CONCLUSION:
When attempting to assign a new connection to a JNIReader queue, the code that maintains the JNIReader queues was mistakenly comparing the number of active connections across ALL threads
to the maximum queue size instead of comparing the current size of each specific queue. The fix for this APAR is available via iFix PQ96752 (PQ96752_Fix.jar.).

JORB00105: None of the native code reader threads has room in its queue for a new Socket to watch, a COMM_FAILURE was thrown
 
Prerequisites
NONE
 
 
Installation instructions
Please review the readme.txt for detailed installation instructions.
 
URL LANGUAGE SIZE(Bytes)
Readme US English 2087
 
Download package
What is DD?
DOWNLOAD RELEASE DATE LANGUAGE SIZE(Bytes) Download Options
PQ96752 1/14/2005 US English 1074661 FTP DD
 
Technical support
1-800-IBM-SERV (U.S. Only)
 
Problems (APARs) fixed
PQ96752
 
 


Document Information


Product categories: Software > Application Servers > Distributed Application & Web Servers > WebSphere Application Server > Object Request Broker (ORB)
Operating system(s): HP-UX
Software version: 4.0.6
Software edition:
Reference #: 4008759
IBM Group: Software Group
Modified date: Jan 19, 2005