1:03 a.m.
[
https://issues.jboss.org/browse/JGRP-2040?page=com.atlassian.jira.plugin....
]
Kshitiz Saxena commented on JGRP-2040:
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Here are the output of netstat command
NODE1
/home/gis/si525/properties>netstat -na | grep 35060
tcp 0 0 9.155.214.204:35060 0.0.0.0:* LISTEN
tcp 0 0 9.155.214.204:39696 9.155.214.109:35060 ESTABLISHED
/home/gis/si525/properties>netstat -na | grep 35061
tcp 0 0 9.155.214.204:35061 0.0.0.0:* LISTEN
tcp 0 0 9.155.214.204:35061 9.155.214.204:37203 ESTABLISHED
tcp 0 0 9.155.214.204:37203 9.155.214.204:35061 ESTABLISHED
tcp 0 0 9.155.214.204:37304 9.155.214.109:35061 ESTABLISHED
/home/gis/si525/properties>netstat -na | grep 35062
NODE2
/home/gis>netstat -na | grep 35060
tcp 0 0 9.155.214.109:35060 0.0.0.0:* LISTEN
tcp 0 0 9.155.214.109:35060 9.155.214.204:39696 ESTABLISHED
/home/gis>netstat -na | grep 35061
tcp 0 0 9.155.214.109:35061 0.0.0.0:* LISTEN
tcp 0 0 9.155.214.109:35061 9.155.214.109:40967 ESTABLISHED
tcp 0 0 9.155.214.109:35061 9.155.214.204:37304 ESTABLISHED
tcp 0 0 9.155.214.109:40967 9.155.214.109:35061 ESTABLISHED
/home/gis>netstat -na | grep 35062
Below are the JGroup properties which we have defined
NODE1
jgroups_cluster.property_string=TCP(bind_addr=9.155.214.204;bind_port=35061):TCPPING(initial_hosts=9.155.214.204[35061],9.155.214.109[35061];port_range=1;timeout=5000;num_initial_members=2):MERGE2(min_interval=3000;max_interval=5000):FD_ALL(interval=5000;timeout=20000):FD(timeout=5000;max_tries=48;):VERIFY_SUSPECT(timeout=1500):pbcast.NAKACK(retransmit_timeout=100,200,300,600,1200,2400,4800;discard_delivered_msgs=true):pbcast.STABLE(stability_delay=1000;desired_avg_gossip=20000;max_bytes=0):pbcast.GMS(print_local_addr=true;join_timeout=5000)
jgroups_cluster.distribution_property_string=TCP(bind_port=35060;thread_pool_rejection_policy=run):TCPPING(initial_hosts=up51to52[35060];port_range=1;timeout=5000;num_initial_members=2):MERGE2(min_interval=3000;max_interval=5000):FD_SOCK:FD(timeout=5000;max_tries=48;):VERIFY_SUSPECT(timeout=1500):pbcast.NAKACK(retransmit_timeout=3000;discard_delivered_msgs=true):pbcast.STABLE(stability_delay=1000;desired_avg_gossip=20000;max_bytes=0):pbcast.GMS(join_timeout=5000;print_local_addr=true)
jgroups_cluster.lock.protocolStack=TCP(bind_addr=9.155.214.204;bind_port=35062):TCPPING(initial_hosts=9.155.214.204[35062],9.155.214.109[35062];port_range=1;timeout=5000;num_initial_members=2):MERGE2(min_interval=3000;max_interval=5000):FD_ALL(interval=5000;timeout=20000):FD(timeout=5000;max_tries=48;):VERIFY_SUSPECT(timeout=1500):pbcast.NAKACK(retransmit_timeout=100,200,300,600,1200,2400,4800;discard_delivered_msgs=true):pbcast.STABLE(stability_delay=1000;desired_avg_gossip=20000;max_bytes=0):pbcast.GMS(print_local_addr=true;join_timeout=5000)
NODE2
jgroups_cluster.property_string=TCP(bind_addr=9.155.214.109;bind_port=35061):TCPPING(initial_hosts=9.155.214.109[35061],9.155.214.204[35061];port_range=1;timeout=5000;num_initial_members=2):MERGE2(min_interval=3000;max_interval=5000):FD_ALL(interval=5000;timeout=20000):FD(timeout=5000;max_tries=48;):VERIFY_SUSPECT(timeout=1500):pbcast.NAKACK(retransmit_timeout=100,200,300,600,1200,2400,4800;discard_delivered_msgs=true):pbcast.STABLE(stability_delay=1000;desired_avg_gossip=20000;max_bytes=0):pbcast.GMS(print_local_addr=true;join_timeout=5000)
jgroups_cluster.distribution_property_string=TCP(bind_port=35060;thread_pool_rejection_policy=run):TCPPING(initial_hosts=ac525n2[35060];port_range=1;timeout=5000;num_initial_members=2):MERGE2(min_interval=3000;max_interval=5000):FD_SOCK:FD(timeout=5000;max_tries=48;):VERIFY_SUSPECT(timeout=1500):pbcast.NAKACK(retransmit_timeout=3000;discard_delivered_msgs=true):pbcast.STABLE(stability_delay=1000;desired_avg_gossip=20000;max_bytes=0):pbcast.GMS(join_timeout=5000;print_local_addr=true)
jgroups_cluster.lock.protocolStack=TCP(bind_addr=9.155.214.109;bind_port=35062):TCPPING(initial_hosts=9.155.214.109[35062],9.155.214.204[35062];port_range=1;timeout=5000;num_initial_members=2):MERGE2(min_interval=3000;max_interval=5000):FD_ALL(interval=5000;timeout=20000):FD(timeout=5000;max_tries=48;):VERIFY_SUSPECT(timeout=1500):pbcast.NAKACK(retransmit_timeout=100,200,300,600,1200,2400,4800;discard_delivered_msgs=true):pbcast.STABLE(stability_delay=1000;desired_avg_gossip=20000;max_bytes=0):pbcast.GMS(print_local_addr=true;join_timeout=5000)
Seeing a OOM in JGroup 3.4
--------------------------
Key: JGRP-2040
URL: https://issues.jboss.org/browse/JGRP-2040
Project: JGroups
Issue Type: Bug
Affects Versions: 3.4
Environment: Linux Operating System
Reporter: Kshitiz Saxena
Assignee: Bela Ban
We are seeing an OOM in our application where thread dump points to JGroup.
We see the below in thread dumps,
3XEHSTTYPE 07:33:24:346241000 GMT j9vm.294 - >setCurrentException index=11
constructorIndex=0 detailMessage=0000000000F61678
3XEHSTTYPE 07:33:24:346183000 GMT j9mm.126 - at 0000000050F8CD60
java/lang/Thread.run()V, jit 00007FCF323EA580, pc 00007FCF489E0A36
3XEHSTTYPE 07:33:24:346179000 GMT j9mm.126 - at 0000000053644748
*org/jgroups/blocks/TCPConnectionMap$TCPConnection$Receiver.run()*V, jit 0000000000000000,
pc 00007FCF3354D334
3XEHSTTYPE 07:33:24:346175000 GMT j9mm.101 - J9AllocateIndexableObject() returning
NULL! *1650814064 bytes* requested for object of class 0000000050F79700 from memory space
'Generational' id=00007FCF440427C0
In the thread dump we also see
WARNING : OutOfMemoryError possibly caused by 1650814064 bytes requested for object of
class 0000000050F79700 from memory space 'Generational' id=00007FCF440427C0
Java Heap Information
-Xmx (Maximum Java heap size) : 1280m
-Xms (Initial Java heap size) : 640m
-Xss (Maximum stack size for Java threads) : 256k
Total Java heap size: 1.25 GB
Used Java heap size: 174.27 MB
Free Java heap size: 1.08 GB
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Kshitiz Saxena (JIRA)