Open cxbrooks opened 6 years ago
Running
$PTII/bin/ptinvoke ptolemy.moml.MoMLSimpleApplication ptolemy/actor/lib/jjs/modules/mqtt/demo/MQTTPubSub/MQTTPubSub.xml
fails to exit after the model wraps up.
jstack shows the following threads:
--start--
Full thread dump Java HotSpot(TM) 64-Bit Server VM (25.101-b13 mixed mode):
"Attach Listener" BZ#46 daemon prio=9 os_prio=31 tid=0x00007ff86717a000 nid=0x5a0b waiting on condition [0x0000000000000000] java.lang.Thread.State: RUNNABLE
"DestroyJavaVM" BZ#27 prio=5 os_prio=31 tid=0x00007ff86721f800 nid=0x1c03 waiting on condition [0x0000000000000000] java.lang.Thread.State: RUNNABLE
"MQTT Call: mqttpt_FC8DAA38CA21D9F7" BZ#21 prio=1 os_prio=31 tid=0x00007ff8617c0800 nid=0x6703 in Object.wait() [0x0000700009a34000] java.lang.Thread.State: WAITING (on object monitor) at java.lang.Object.wait(Native Method)
"MQTT Snd: mqttpt_FC8DAA38CA21D9F7" BZ#20 prio=1 os_prio=31 tid=0x00007ff8612a4000 nid=0x6503 in Object.wait() [0x0000700009931000] java.lang.Thread.State: TIMED_WAITING (on object monitor) at java.lang.Object.wait(Native Method)
"MQTT Call: mqttpt_C7CF5AE1A4F8D261" BZ#17 prio=1 os_prio=31 tid=0x00007ff864800800 nid=0x6103 in Object.wait() [0x000070000972b000] java.lang.Thread.State: WAITING (on object monitor) at java.lang.Object.wait(Native Method)
"MQTT Snd: mqttpt_C7CF5AE1A4F8D261" BZ#16 prio=1 os_prio=31 tid=0x00007ff864803000 nid=0x5f03 in Object.wait() [0x0000700009628000] java.lang.Thread.State: TIMED_WAITING (on object monitor) at java.lang.Object.wait(Native Method)
--end---
To fix this, we need to stop these threads.
Wrapup is calling MQTTHelper.end():
public void end() throws MqttException { if (_mqttClient.isConnected()) { _mqttClient.disconnect(); } _mqttClient.close(); }
https://www.eclipse.org/forums/index.php/t/1073983/ suggests upgrading or calling MqttClient.setTimeToWait().
Upgrading to 1.0.2 from http://central.maven.org/maven2/org/eclipse/paho/org.eclipse.paho.client.mqttv3/1.2.0/ does not solve the problem, though a different set of threads is seen in jstack.
I did not try calling setTimeToWait().
Note: the issue was created automatically with bugzilla2github tool
Original bug ID: BZ#543 From: @cxbrooks Reported version: unspecified CC: accessors-devel@terraswarm.org