Port Ranges within Process Platform |
A networked server, must use server ports to communicate between Java processes, especially when running as a cluster. It uses two types of ports, namely configured ports (will be reused after a restart) and anonymous ports.
The range of ports that must be taken can be limited, if needed. Modify the following properties in the General Properties:
| Property | Description | Default Value |
|---|---|---|
com.eibus.port.range |
For configured ports, only the ports within this range will be used. | 10000-32767 |
com.eibus.port.range.anonymous |
For anonymous ports, only the ports within this range will be used. | Ephemeral port range as per the operating system (see below table for more info) |
com.eibus.port.range=10000-32767 com.eibus.port.range.anonymous=49152-65535
 |
It is suggested not to overlap the port ranges of the two types of ports, as it may lead to unexpected behavior. |
The following table lists the OS specific ranges of ephemeral ports:
| OS | Ephemeral port range | URL |
|---|---|---|
| AIX | Uses two separate ephemeral port ranges; one for TCP and the other for UDP. Default values for both the ranges are between 32768 and 65535. | Info |
| Linux | Most of the Linux kernels use the port range between 32768 and 61000. | Info |
| Solaris | Uses two separate ephemeral port ranges; one for TCP and and the other for UDP. Default values for both the ranges are between 32768 and 65535. | Info |
| Windows | Windows Server 2008 and later versions use a default range of values between 49152 and 65535. | Info link to be added |
Backwards compatibility
Previously, the ports that influence the port ranges were set as follows:
Anonymous port ranges (deprecated)
If no value is provided for the anonymous range, it will be retrieved from the following:
bus.anonymous.ports.minValue= bus.anonymous.ports.maxValue=
Gossip client port ranges
Gossip uses the clientPortRangeStart and clientPortRangeEnd properties provided through the JMX properties (Gossip (Managed Components)) for binding the client sockets. If these values are specified according to the default levels (both 0), then the JVM implementation will use the ephemeral port range.