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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
This commit is contained in:
JohnA2
2014-06-10 23:36:32 +04:00
committed by Artem Bilan
parent 119787f020
commit 69e20fc7db
3 changed files with 184 additions and 113 deletions
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18
src/reference/docbook/ip.xml
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@@ -1035,7 +1035,7 @@
<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.
@@ -1049,16 +1049,16 @@ 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>
@@ -1068,7 +1068,7 @@ 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" />
@@ -1081,11 +1081,9 @@ 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>