12:41 a.m.
[
https://issues.jboss.org/browse/JGRP-2382?page=com.atlassian.jira.plugin....
]
Rashmi Acharya commented on JGRP-2382:
--------------------------------------
With Jgroup 3.4.0 version we never had UNICAST option and It used to work fine with both
load balancing and No memory leaks. If Unicast acknowledgement were processed by other
node in the system.
old Property:
distribution_property_string=TCP(bind_port=60961;thread_pool_rejection_policy=run):TCPPING(initial_hosts=harp[60961];port_range=0;timeout=5000;num_initial_members=2):MERGE2(min_interval=3000;max_interval=5000):FD_SOCK:FD(timeout=5000;max_tries=48;level=ERROR):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)
Now you are suggesting us to add back UNICAST3 ? What about UNICAST protocol ?
FD timeout="5000" max_tries="48"/> is this need to be changed to
FD_ALL ?
BARRIER we never had in the system ..
Do you think adding Timeout with UNICAST3 makes any difference w.r.t clearing those
objects in memory ? If Yes, we can introduce back UNICAST3 with timeout=5000
JGroups version 4.0.13.Final.jar is causing memory leaks
--------------------------------------------------------
Key: JGRP-2382
URL: https://issues.jboss.org/browse/JGRP-2382
Project: JGroups
Issue Type: Feature Request
Affects Versions: 4.0.13
Environment: AIX machine 7.1 with JDK 1.8
Reporter: Rashmi Acharya
Assignee: Bela Ban
Priority: Major
Attachments: dumps_TEST_node1_20190918_after_3_hours.zip,
dumps_TEST_node1_20190918_right_after_restart.zip,
dumps_TEST_node2_20190918_after_3_hours.zip,
dumps_TEST_node2_20190918_right_after_restart.zip
We are observing a constant memory growth and leak with JGroup version 4.0.13 ..
One of our customer is having two node cluster environment and in one node we are
observing org.Group.Messages which contain org.groups.Header and
org.groups.Stack.ipAddress objects.. these are not getting cleared from memory..
We dont see any exception related to Jgroups from logs and but it is causing a gradual
emory growth and OOM.
Here is the Jgroups cluster configuration we have:
dynamic.cluster.property_string
<config xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance"
xmlns="urn:org:jgroups" xsi:schemaLocation="urn:org:jgroups
http://www.jgroups.org/schema/jgroups.xsd">
<TCP bind_addr="&HOST_ADDR;"
bind_port="&MULTICAST_NODE_PORT2;"/>
<TCPPING async_discovery="true"
initial_hosts="&CLUSTER_INITIAL_HOSTS;" port_range="0"
send_cache_on_join="true"/>
<MERGE3 min_interval="3000" max_interval="5000" />
<FD_ALL timeout="20000" interval="15000"/>
<FD_SOCK/>
<FD timeout="5000" max_tries="48" />
<VERIFY_SUSPECT timeout="1500"/>
<BARRIER/>
<pbcast.NAKACK2 use_mcast_xmit="false"
discard_delivered_msgs="true"/>
<UNICAST3/>
<pbcast.STABLE desired_avg_gossip="20000" max_bytes="0"
stability_delay="1000"/>
<pbcast.GMS print_local_addr="true" join_timeout="15000" />
</config>
=================================
dynamic.cluster.distribution_property_string
<config xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance"
xmlns="urn:org:jgroups" xsi:schemaLocation="urn:org:jgroups
http://www.jgroups.org/schema/jgroups.xsd">
<TCP bind_port="&MULTICAST_NODE_PORT1;" />
<TCPPING async_discovery="true"
initial_hosts="&CLUSTER_INITIAL_HOSTS;" port_range="0"
send_cache_on_join="true"/>
<MERGE3 min_interval="3000" max_interval="5000"/>
<FD_SOCK/>
<FD timeout="5000" max_tries="48"/>
<VERIFY_SUSPECT timeout="1500"/>
<BARRIER/>
<pbcast.NAKACK2 use_mcast_xmit="false"
discard_delivered_msgs="true"/>
<UNICAST3/>
<pbcast.STABLE desired_avg_gossip="20000" max_bytes="0"
stability_delay="1000" />
<pbcast.GMS print_local_addr="true" join_timeout="5000"/>
</config>
================================
dynamic.cluster.lock.protocolStack
<config xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance"
xmlns="urn:org:jgroups" xsi:schemaLocation="urn:org:jgroups
http://www.jgroups.org/schema/jgroups.xsd">
<TCP bind_addr="&HOST_ADDR;"
bind_port="&MULTICAST_NODE_PORT3;"/>
<TCPPING async_discovery="true"
initial_hosts="&CLUSTER_INITIAL_HOSTS;" port_range="0"
send_cache_on_join="true"/>
<MERGE3 min_interval="3000" max_interval="5000"/>
<FD_ALL timeout="20000" interval="5000"/>
<FD timeout="5000" max_tries="48"/>
<VERIFY_SUSPECT timeout="1500"/>
<BARRIER/>
<pbcast.NAKACK2 use_mcast_xmit="false"
discard_delivered_msgs="true"/>
<UNICAST3 /> <pbcast.STABLE desired_avg_gossip="20000" />
<pbcast.GMS print_local_addr="true" join_timeout="5000"/>
<FRAG2 frag_size="8096"/>
<CENTRAL_LOCK2/>
</config>
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Rashmi Acharya (Jira)