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In order to use the UDP Multicasting for node discovery and TCP for replication the following JGroups example configuration can be used:
Code Block | ||||
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<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-3.0.xsd"> |
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<TCP bind_port="7800" |
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loopback="false" |
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recv_buf_size="${tcp.recv_buf_size:5M}" |
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send_buf_size="${tcp.send_buf_size:640K}" |
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max_bundle_size="64K" |
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max_bundle_timeout="30" |
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use_send_queues="true" |
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sock_conn_timeout="300" |
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timer_type="new3" |
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timer.min_threads="4" |
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timer.max_threads="10" |
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timer.keep_alive_time="3000" |
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timer.queue_max_size="500" |
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thread_pool.enabled="true" |
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thread_pool.min_threads="1" |
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thread_pool.max_threads="10" |
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thread_pool.keep_alive_time="5000" |
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thread_pool.queue_enabled="true" |
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thread_pool.queue_max_size="10000" |
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thread_pool.rejection_policy="discard" |
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oob_thread_pool.enabled="true" |
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oob_thread_pool.min_threads="1" |
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oob_thread_pool.max_threads="8" |
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oob_thread_pool.keep_alive_time="5000" |
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oob_thread_pool.queue_enabled="false" |
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oob_thread_pool.queue_max_size="100" |
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oob_thread_pool.rejection_policy="discard"/> |
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<MPING timeout="1000" |
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num_initial_members="1"/> |
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<MERGE2 max_interval="30000" |
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min_interval="10000"/> |
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<FD_ALL timeout="150000"/> |
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<VERIFY_SUSPECT timeout="150000" /> |
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<BARRIER /> |
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<pbcast.NAKACK2 use_mcast_xmit="false" |
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discard_delivered_msgs="true"/> |
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<UNICAST timeout="600,900,2500"/> |
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<pbcast.STABLE stability_delay="2000" desired_avg_gossip="50000" |
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max_bytes="4M"/> |
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<pbcast.GMS print_local_addr="true" join_timeout="6000" |
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view_bundling="true"/> |
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<MFC max_credits="2M" |
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min_threshold="0.4"/> |
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<FRAG2 frag_size="60K" /> |
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<pbcast.STATE_TRANSFER /> |
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</config> |
Using Tomcat7
- Build the fcrepo war file or download the prebuilt fcrepo war file
- Build the War file as described on this page
- Fetch the WAR file from the download page
- Get Tomcat
Download Tomcat 7.0.50 and unpack it
Code Block #> wget http://mirror.synyx.de/apache/tomcat/tomcat-7/v7.0.50/bin/apache-tomcat-7.0.50.tar.gz #> tar -zxvf apache-tomcat-7.0.50.tar.gz #> mv apache-tomcat-7.0.50 tomcat7
- Put the WAR file into tomcat's webapp directory or create a symbolic link
Copy the fcrepo-webapp-VERSION.war file
Code Block #> cp fcrepo-webapp-VERSION.war tomcat7/webapps/fcrepo.war
- Set the send/recv buffer sizes if neccessary
Use the following commands to set the buffer size
Code Block #> sysctl net.core.rmem_max=26214400 #> sysctl net.core.wmem_max=5242880
- Start instances
Using a custom configuration by pointing Fedora 4 to custom configuration files:
Code Block #> CATALINA_OPTS="-Xmx1024m -XX:MaxPermSize=256m -Djava.net.preferIPv4Stack=true -Djgroups.udp.mcast_addr=239.42.42.42 -Dfcrepo.modeshape.configuration=file:///path/to/repository.json -Dfcrepo.ispn.jgroups.configuration=/path/to/jgroups-fedora-udp.xml -Dfcrepo.infinispan.cache_configuration=/path/to/infinispan.xml" bin/catalina.sh run
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