server process (PID 1304) was terminated by exception 0xC0000142

Hi all,

I am Haiming, a software engineer.

One of our product is depending on PostgreSQL. I am facing a problem that it somehow always gave me an error " server process (PID 1304) was terminated by exception 0xC0000142." or " No buffer space available (maximum connections reached?): connect". I searched around and tried different configuration, but I still have not gotten any luck.
Any help would be appreciated.

Setup:
1. Postgresql 9.1
2. Product language: Java
3. JDBC Pool: BoneCP
Here is my config:
idleConnectionTestPeriod = 60
idleMaxAge = 240
maxConnectionsPerPartition = 35
minConnectionsPerPartition = 10
partitionCount = 5

and in postgresql.conf:
max_connections = 600
shared_buffers = 32MB
others are as default.

This configuration is deployed in Windows XP with 4G Ram.

I also tried Windows 7 and Windows Server 2008, the same issue occured.
For Server 2008, my config is:
idleConnectionTestPeriod = 60
idleMaxAge = 240
maxConnectionsPerPartition = 100
minConnectionsPerPartition = 5
partitionCount = 5

and in postgresql.conf:
max_connections = 2000
shared_buffers = 2G
others are as default.

Many thanks

Haiming Zhang
Software Engineer

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