geode-docs/managing/monitor_tune/socket_communication.html.md.erb - geode - Git at Google

 ---
 title:  Socket Communication
 ---

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 <%=vars.product_name%> processes communicate using TCP/IP and UDP unicast and multicast protocols. In all cases, communication uses sockets that you can tune to optimize performance.

 The adjustments you make to tune your <%=vars.product_name%> communication may run up against operating system limits. If this happens, check with your system administrator about adjusting the operating system settings.

 All of the settings discussed here are listed as `gemfire.properties` and `cache.xml` settings. They can also be configured through the API and some can be configured at the command line. Before you begin, you should understand <%=vars.product_name%> [Basic Configuration and Programming](../../basic_config/book_intro.html).

 -   **[Setting Socket Buffer Sizes](socket_communication_setting_socket_buffer_sizes.html)**

     When you determine buffer size settings, you try to strike a balance between communication needs and other processing.

 -   **[Ephemeral TCP Port Limits](socket_communication_ephemeral_tcp_port_limits.html)**

     By default, Windows’ ephemeral ports are within the range 1024-4999, inclusive.You can increase the range.

 -   **[Making Sure You Have Enough Sockets](socket_communication_have_enough_sockets.html)**

     The number of sockets available to your applications is governed by operating system limits.

 -   **[TCP/IP KeepAlive Configuration](socket_tcp_keepalive.html)**

     <%=vars.product_name%> supports TCP KeepAlive to prevent socket connections from being timed out.

 -   **[TCP/IP Peer-to-Peer Handshake Timeouts](socket_communication_tcpip_p2p_handshake_timeouts.html)**

     You can alleviate connection handshake timeouts for TCP/IP connections by increasing the connection handshake timeout interval with the system property p2p.handshakeTimeoutMs.
	---
	title: Socket Communication
	---

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	Licensed to the Apache Software Foundation (ASF) under one or more
	contributor license agreements. See the NOTICE file distributed with
	this work for additional information regarding copyright ownership.
	The ASF licenses this file to You under the Apache License, Version 2.0
	(the "License"); you may not use this file except in compliance with
	the License. You may obtain a copy of the License at

	http://www.apache.org/licenses/LICENSE-2.0

	Unless required by applicable law or agreed to in writing, software
	distributed under the License is distributed on an "AS IS" BASIS,
	WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
	See the License for the specific language governing permissions and
	limitations under the License.
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	<%=vars.product_name%> processes communicate using TCP/IP and UDP unicast and multicast protocols. In all cases, communication uses sockets that you can tune to optimize performance.

	The adjustments you make to tune your <%=vars.product_name%> communication may run up against operating system limits. If this happens, check with your system administrator about adjusting the operating system settings.

	All of the settings discussed here are listed as `gemfire.properties` and `cache.xml` settings. They can also be configured through the API and some can be configured at the command line. Before you begin, you should understand <%=vars.product_name%> [Basic Configuration and Programming](../../basic_config/book_intro.html).

	- [Setting Socket Buffer Sizes](socket_communication_setting_socket_buffer_sizes.html)

	When you determine buffer size settings, you try to strike a balance between communication needs and other processing.

	- [Ephemeral TCP Port Limits](socket_communication_ephemeral_tcp_port_limits.html)

	By default, Windows’ ephemeral ports are within the range 1024-4999, inclusive.You can increase the range.

	- [Making Sure You Have Enough Sockets](socket_communication_have_enough_sockets.html)

	The number of sockets available to your applications is governed by operating system limits.

	- [TCP/IP KeepAlive Configuration](socket_tcp_keepalive.html)

	<%=vars.product_name%> supports TCP KeepAlive to prevent socket connections from being timed out.

	- [TCP/IP Peer-to-Peer Handshake Timeouts](socket_communication_tcpip_p2p_handshake_timeouts.html)

	You can alleviate connection handshake timeouts for TCP/IP connections by increasing the connection handshake timeout interval with the system property p2p.handshakeTimeoutMs.