[jboss-jira] [JBoss JIRA] (JGRP-1827) Forked channel requires udp.xml file
Jim Thomas (JIRA)
issues at jboss.org
Thu Apr 17 19:08:33 EDT 2014
[ https://issues.jboss.org/browse/JGRP-1827?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=12962698#comment-12962698 ]
Jim Thomas commented on JGRP-1827:
----------------------------------
That didn't fix it for me (or at least not entirely) -- I still get the same udp.xml not found exception from the original comment. If you look at the call stack for the exception you can see that we are in the JChannel (super) default constructor and have not yet gotten to the point where we make an instance of FORK using getFork in the ForkChannel constructor. If I have a valid udp.xml, but one that does not contain a FORK protocol in it, then the fork channel is created and works. A bit scary though.
>From my look at the code it seems to me that ForkChannel should not be using the default constructor for the parent JChannel. Not sure if one of the other JChannel constructors is appropriate or if a new one must be added.
> Forked channel requires udp.xml file
> ------------------------------------
>
> Key: JGRP-1827
> URL: https://issues.jboss.org/browse/JGRP-1827
> Project: JGroups
> Issue Type: Bug
> Affects Versions: 3.4.1
> Environment: Android
> Reporter: Jim Thomas
> Assignee: Bela Ban
> Priority: Minor
> Fix For: 3.4.4, 3.5
>
> Attachments: bla2.java, fork-stacks.xml, main.xml
>
>
> An exception is thrown when creating a fork channel if the stack file name is something other than udp.xml (in my case main.xml):
> final JChannel mainChannel = new JChannel("main.xml");
> final ForkChannel mbChannel = new ForkChannel(mainChannel,
> "main", "fork-mb");
> 4-09 17:33:38.270: W/System.err(5478): java.io.FileNotFoundException: JGRP000003: file "udp.xml" not found
> 04-09 17:33:38.270: W/System.err(5478): at org.jgroups.conf.ConfiguratorFactory.getXmlConfigurator(ConfiguratorFactory.java:211)
> 04-09 17:33:38.270: W/System.err(5478): at org.jgroups.conf.ConfiguratorFactory.getStackConfigurator(ConfiguratorFactory.java:102)
> 04-09 17:33:38.270: W/System.err(5478): at org.jgroups.JChannel.<init>(JChannel.java:172)
> 04-09 17:33:38.270: W/System.err(5478): at org.jgroups.JChannel.<init>(JChannel.java:123)
> 04-09 17:33:38.270: W/System.err(5478): at org.jgroups.fork.ForkChannel.<init>(ForkChannel.java:75)
> 04-09 17:33:38.270: W/System.err(5478): at org.jgroups.fork.ForkChannel.<init>(ForkChannel.java:118)
> 04-09 17:33:38.270: W/System.err(5478): at com.novawurks.jgroupstest.JGroupsTestActivity$JGroupsSetupThread.run(JGroupsTestActivity.java:119)
> If I have the stack named udp.xml then the exception is not thrown and everything works as expected. If I make a copy of main.xml named udp.xml (so both files are present) the exception is not thrown and everything works as expected.
> Contents of main.xml / udp.xml :
> {code:xml}
> <config xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance"
> xmlns="urn:org:jgroups"
> xsi:schemaLocation="urn:org:jgroups http://www.jgroups.org/schema/JGroups-3.3.xsd" >
> <UDP
> enable_diagnostics="true"
> ip_mcast="true"
> ip_ttl="${jgroups.udp.ip_ttl:8}"
> loopback="true"
> max_bundle_size="1400"
> max_bundle_timeout="5"
> mcast_port="${jgroups.udp.mcast_port:45588}"
> mcast_recv_buf_size="200K"
> mcast_send_buf_size="200K"
> oob_thread_pool.enabled="true"
> oob_thread_pool.keep_alive_time="5000"
> oob_thread_pool.max_threads="8"
> oob_thread_pool.min_threads="1"
> oob_thread_pool.queue_enabled="false"
> oob_thread_pool.queue_max_size="100"
> oob_thread_pool.rejection_policy="discard"
> thread_naming_pattern="cl"
> thread_pool.enabled="true"
> thread_pool.keep_alive_time="5000"
> thread_pool.max_threads="8"
> thread_pool.min_threads="2"
> thread_pool.queue_enabled="true"
> thread_pool.queue_max_size="10000"
> thread_pool.rejection_policy="discard"
> timer.keep_alive_time="3000"
> timer.max_threads="10"
> timer.min_threads="4"
> timer.queue_max_size="500"
> timer_type="new3"
> tos="8"
> ucast_recv_buf_size="200K"
> ucast_send_buf_size="200K" />
> <PING />
> <MERGE2
> max_interval="30000"
> min_interval="10000" />
> <FD_SOCK />
> <FD_ALL />
> <VERIFY_SUSPECT timeout="1500" />
> <BARRIER />
> <pbcast.NAKACK2
> discard_delivered_msgs="true"
> max_msg_batch_size="500"
> use_mcast_xmit="false"
> xmit_interval="500"
> xmit_table_max_compaction_time="30000"
> xmit_table_msgs_per_row="2000"
> xmit_table_num_rows="100" />
> <UNICAST3
> conn_expiry_timeout="0"
> max_msg_batch_size="500"
> xmit_interval="500"
> xmit_table_max_compaction_time="60000"
> xmit_table_msgs_per_row="2000"
> xmit_table_num_rows="100" />
> <pbcast.STABLE
> desired_avg_gossip="50000"
> max_bytes="4M"
> stability_delay="1000" />
> <pbcast.GMS
> join_timeout="3000"
> print_local_addr="true"
> view_bundling="true" />
> <UFC
> max_credits="2M"
> min_threshold="0.4" />
> <MFC
> max_credits="2M"
> min_threshold="0.4" />
> <FRAG frag_size="1000" />
> <pbcast.STATE_TRANSFER />
> <FORK>
> <fork-stack id="main" >
> <config>
> <CENTRAL_LOCK num_backups="2" />
> </config>
> </fork-stack>
> <fork-stack id="lock" >
> <config>
> <CENTRAL_LOCK num_backups="2" />
> <STATS />
> </config>
> </fork-stack>
> </FORK>
> </config>
> {code}
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