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INT-3433 NIO Thread Starvation with Fixed Pool

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JIRA: https://jira.spring.io/browse/INT-3433

INT-3433 added the test-case

Conflicts:
	spring-integration-ip/src/main/java/org/springframework/integration/ip/tcp/connection/TcpNioConnection.java
This commit is contained in:
JohnA2
2014-06-10 23:36:32 +04:00
committed by Artem Bilan
parent 973e677fc2
commit eafbe9b6e3
3 changed files with 183 additions and 111 deletions
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18
src/reference/docbook/ip.xml
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@@ -1027,7 +1027,7 @@
<classname>CompositeExecutor</classname> allows the configuration
of two distinct executors; one for performing IO operations, and
one for message assembly. The <classname>CallerBlocksPolicy</classname>
(which should be configured for both task executors) will suspend
(which should be configured for the first task executors) will suspend
the IO operation until an assembler thread is available (or a timeout
occurs). In this environment, an IO thread can never
become an assembler thread, and the deadlock cannot occur.
@@ -1041,16 +1041,16 @@ private CompositeExecutor compositeExecutor() {
ThreadPoolTaskExecutor ioExec = new ThreadPoolTaskExecutor();
ioExec.setCorePoolSize(4);
ioExec.setMaxPoolSize(8);
ioExec.setQueueCapacity(10);
ioExec.setQueueCapacity(0);
ioExec.setThreadNamePrefix("io-");
ioExec.setRejectedExecutionHandler(new CallerRunsPolicy());
ioExec.initialize();
ThreadPoolTaskExecutor assemblerExec = new ThreadPoolTaskExecutor();
assemblerExec.setCorePoolSize(2);
assemblerExec.setCorePoolSize(4);
assemblerExec.setMaxPoolSize(10);
assemblerExec.setQueueCapacity(12);
assemblerExec.setQueueCapacity(0);
assemblerExec.setThreadNamePrefix("assembler-");
assemblerExec.setRejectedExecutionHandler(new CallerBlocksPolicy(10000));
assemblerExec.setRejectedExecutionHandler(new AbortPolicy());
assemblerExec.initialize();
return new CompositeExecutor(ioExec, assemblerExec);
}]]></programlisting>
@@ -1060,7 +1060,7 @@ private CompositeExecutor compositeExecutor() {
<property name="threadNamePrefix" value="io-" />
<property name="corePoolSize" value="4" />
<property name="maxPoolSize" value="8" />
<property name="queueCapacity" value="10" />
<property name="queueCapacity" value="0" />
<property name="rejectedExecutionHandler">
<bean class="org.springframework.integration.util.CallerBlocksPolicy">
<constructor-arg value="10000" />
@@ -1073,11 +1073,9 @@ private CompositeExecutor compositeExecutor() {
<property name="threadNamePrefix" value="assembler-" />
<property name="corePoolSize" value="4" />
<property name="maxPoolSize" value="10" />
<property name="queueCapacity" value="10" />
<property name="queueCapacity" value="0" />
<property name="rejectedExecutionHandler">
<bean class="org.springframework.integration.util.CallerBlocksPolicy">
<constructor-arg value="10000" />
</bean>
<bean class="java.util.concurrent.ThreadPoolExecutor.AbortPolicy" />
</property>
</bean>
</constructor-arg>