[jboss-jira] [JBoss JIRA] (JGRP-1785) TOA, inconsistent message delivery
Ryan Emerson (JIRA)
issues at jboss.org
Mon Jan 27 11:55:30 EST 2014
[ https://issues.jboss.org/browse/JGRP-1785?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=12939066#comment-12939066 ]
Ryan Emerson edited comment on JGRP-1785 at 1/27/14 11:54 AM:
--------------------------------------------------------------
I have encountered this problem using several different configuration files, however at the minute I am using the "toa.xml" file that comes with JGroups.
{code: title=toa.xml | borderStyle=solid}
<config xmlns="urn:org:jgroups"
xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance"
xsi:schemaLocation="urn:org:jgroups http://www.jgroups.org/schema/JGroups-3.3.xsd">
<UDP
mcast_port="${jgroups.udp.mcast_port:45588}"
tos="8"
loopback="true"
max_bundle_size="64K"
max_bundle_timeout="30"
ip_ttl="${jgroups.udp.ip_ttl:8}"
enable_diagnostics="true"
thread_naming_pattern="cl"
timer_type="new3"
timer.min_threads="4"
timer.max_threads="10"
timer.keep_alive_time="3000"
timer.queue_max_size="500"
thread_pool.enabled="true"
thread_pool.min_threads="2"
thread_pool.max_threads="8"
thread_pool.keep_alive_time="5000"
thread_pool.queue_enabled="true"
thread_pool.queue_max_size="10000"
thread_pool.rejection_policy="discard"
oob_thread_pool.enabled="true"
oob_thread_pool.min_threads="1"
oob_thread_pool.max_threads="8"
oob_thread_pool.keep_alive_time="5000"
oob_thread_pool.queue_enabled="false"
oob_thread_pool.queue_max_size="100"
oob_thread_pool.rejection_policy="discard"/>
<PING timeout="2000"
num_initial_members="20"/>
<MERGE2 max_interval="30000"
min_interval="10000"/>
<FD_SOCK/>
<FD_ALL/>
<VERIFY_SUSPECT timeout="1500" />
<BARRIER />
<pbcast.NAKACK2 xmit_interval="1000"
xmit_table_num_rows="100"
xmit_table_msgs_per_row="2000"
xmit_table_max_compaction_time="30000"
max_msg_batch_size="500"
use_mcast_xmit="false"
discard_delivered_msgs="true"/>
<UNICAST3 xmit_interval="500"
xmit_table_num_rows="100"
xmit_table_msgs_per_row="2000"
xmit_table_max_compaction_time="60000"
conn_expiry_timeout="0"
max_msg_batch_size="500"/>
<pbcast.STABLE stability_delay="1000" desired_avg_gossip="50000"
max_bytes="4M"/>
<pbcast.GMS print_local_addr="true" join_timeout="3000"
view_bundling="true"/>
<UFC max_credits="2M"
min_threshold="0.4"/>
<MFC max_credits="2M"
min_threshold="0.4"/>
<FRAG2 frag_size="60K" />
<RSVP resend_interval="2000" timeout="10000"/>
<tom.TOA />
<pbcast.STATE_TRANSFER />
<!-- pbcast.FLUSH /-->
</config>
{code}
was (Author: ryanemerson):
I have encountered this problem using several different configuration files, however at the minute I am just using the "toa.xml" file that comes with JGroups.
{code: title=toa.xml | borderStyle=solid}
<config xmlns="urn:org:jgroups"
xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance"
xsi:schemaLocation="urn:org:jgroups http://www.jgroups.org/schema/JGroups-3.3.xsd">
<UDP
mcast_port="${jgroups.udp.mcast_port:45588}"
tos="8"
loopback="true"
max_bundle_size="64K"
max_bundle_timeout="30"
ip_ttl="${jgroups.udp.ip_ttl:8}"
enable_diagnostics="true"
thread_naming_pattern="cl"
timer_type="new3"
timer.min_threads="4"
timer.max_threads="10"
timer.keep_alive_time="3000"
timer.queue_max_size="500"
thread_pool.enabled="true"
thread_pool.min_threads="2"
thread_pool.max_threads="8"
thread_pool.keep_alive_time="5000"
thread_pool.queue_enabled="true"
thread_pool.queue_max_size="10000"
thread_pool.rejection_policy="discard"
oob_thread_pool.enabled="true"
oob_thread_pool.min_threads="1"
oob_thread_pool.max_threads="8"
oob_thread_pool.keep_alive_time="5000"
oob_thread_pool.queue_enabled="false"
oob_thread_pool.queue_max_size="100"
oob_thread_pool.rejection_policy="discard"/>
<PING timeout="2000"
num_initial_members="20"/>
<MERGE2 max_interval="30000"
min_interval="10000"/>
<FD_SOCK/>
<FD_ALL/>
<VERIFY_SUSPECT timeout="1500" />
<BARRIER />
<pbcast.NAKACK2 xmit_interval="1000"
xmit_table_num_rows="100"
xmit_table_msgs_per_row="2000"
xmit_table_max_compaction_time="30000"
max_msg_batch_size="500"
use_mcast_xmit="false"
discard_delivered_msgs="true"/>
<UNICAST3 xmit_interval="500"
xmit_table_num_rows="100"
xmit_table_msgs_per_row="2000"
xmit_table_max_compaction_time="60000"
conn_expiry_timeout="0"
max_msg_batch_size="500"/>
<pbcast.STABLE stability_delay="1000" desired_avg_gossip="50000"
max_bytes="4M"/>
<pbcast.GMS print_local_addr="true" join_timeout="3000"
view_bundling="true"/>
<UFC max_credits="2M"
min_threshold="0.4"/>
<MFC max_credits="2M"
min_threshold="0.4"/>
<FRAG2 frag_size="60K" />
<RSVP resend_interval="2000" timeout="10000"/>
<tom.TOA />
<pbcast.STATE_TRANSFER />
<!-- pbcast.FLUSH /-->
</config>
{code}
> TOA, inconsistent message delivery
> ----------------------------------
>
> Key: JGRP-1785
> URL: https://issues.jboss.org/browse/JGRP-1785
> Project: JGroups
> Issue Type: Bug
> Affects Versions: 3.5
> Environment: Fedora release 17 (Beefy Miracle)
> Reporter: Ryan Emerson
> Assignee: Pedro Ruivo
> Fix For: 3.5
>
>
> When sending total order messages between two nodes, for a prolonged period of time, an inconsistency is encountered when comparing each node's total order of messages.
> I believe this issue is related to how sequence numbers are handled in the implementation, not the protocol itself. I appreciate that TOA is designed for environments where the subset of destinations in the network varies, however I have been unable to reproduce this error when the total number of nodes is > 2. It is still possible that this inconsistency may occur after a large amount of time when the number of nodes is > 2.
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