Spring web application displays blank page for the first request - spring

I am working in a spring web application and faces a strange behavior.
when hitting the application URL, the browser displays blank page and I should reload the page to work properly.
The application runs behind nginx and there are a chunk of redirection rules.
I can not find more specific words to describe this issue.
Where to start debugging ?
my server.xml
`
<Resource name="UserDatabase" auth="Container"
type="org.apache.catalina.UserDatabase"
description="User database that can be updated and saved"
factory="org.apache.catalina.users.MemoryUserDatabaseFactory"
pathname="conf/tomcat-users.xml" />
<Connector port="8080" protocol="HTTP/1.1" URIEncoding="UTF-8"
connectionTimeout="20000" maxThreads="600" minSpareThreads="25" maxSpareThreads="75"
useBodyEncodingForURI="true" enableLookups="false"
redirectPort="8443" />
<Connector port="443" protocol="HTTP/1.1" SSLEnabled="true"
scheme="https" secure="true"
clientAuth="false" sslProtocol="TLS"
URIEncoding="UTF-8"
keystoreFile="my key store"
keystorePass="my password"
/>
<Connector port="8013" protocol="AJP/1.3" redirectPort="443" URIEncoding="UTF-8"
connectionTimeout="20000" maxThreads="600" minSpareThreads="25" maxSpareThreads="75"
useBodyEncodingForURI="true" enableLookups="false"
/>
<Engine name="Catalina" defaultHost="localhost">
<Realm className="org.apache.catalina.realm.UserDatabaseRealm"
resourceName="UserDatabase"/>
<Host name="localhost" appBase="webapps"
unpackWARs="true" autoDeploy="true"
xmlValidation="false" xmlNamespaceAware="false">
</Host>
</Engine>
`

Related

GZIP not working for Apache tomcat

apache tomcat(8.0.36)
1.I have added .htaccess file in root then also its not working
2.I have added following code in server.xml
<Connector connectionTimeout="20000" port="80" protocol="HTTP/1.1"
disableUploadTimeout="true"
compression="on"
compressionMinSize="2048"
noCompressionUserAgents="gozilla, traviata"
compressableMimeType="text/html,
text/xml,text/plain,text/javascript,text/css,application/json"/>

JBoss AS7 rewrite issue

I'm trying to redirect http connections to https in JBoss AS 7.1.1 using the rewrite valve inside a virtual host. This is my current configuration in standalone.xml:
<subsystem xmlns="urn:jboss:domain:web:1.1" default-virtual-server="default-host" native="false">
<connector name="http" protocol="HTTP/1.1" scheme="http" socket-binding="http" redirect-port="8443"/>
<connector name="https" protocol="HTTP/1.1" scheme="https" socket-binding="https" secure="true">
<ssl name="my-ssl" key-alias="my-alias" password="pass" certificate-key-file="/path/to/keystore"/>
</connector>
<virtual-server name="default-host" enable-welcome-root="true">
<alias name="localhost"/>
<alias name="example.com"/>
<rewrite pattern=".*" substitution="https://myserver.com:8443" flags="R,L">
<condition test="%{HTTPS}" pattern="off" flags="NC"/>
</rewrite>
</virtual-server>
</subsystem>
The http port is 8080 and the https is 8443. Access to http://myserver.com:8080 are redirected correctly to https://myserver.com:8443, but (this is the issue I'm trying to resolve) access to http://myserver.com:8443 return an empty HTTP 200 OK response.
It is correct that JBoss apparently accepts http connections in the https port, or there is an error in the server configuration? If there isn't a error, how can I redirect http://myserver.com:8443 to https://myserver.com:8443?

Tomcat clustering - configuring 2 tomcats on different machines

I'm trying to create a tomcat cluster in order to replicate sessions.
my 2 tomcats are existing on two different machines,
All examples available showed clustering of 2 tomcats on same machine.
Where do i configure the ips of the tomcats in the configuration files?
(currently when i use the default configurations i get the error:"
Oct 30, 2013 10:21:03 AM org.apache.catalina.ha.session.DeltaManager getAllClusterSessions
INFO: Manager [localhost#/HATest]: skipping state transfer. No members active in cluster group."
Thanks!
EDIT: my (default and not so interesting) server.xml:
<?xml version='1.0' encoding='utf-8'?>
http://www.apache.org/licenses/LICENSE-2.0
Unless required by applicable law or agreed to in writing, software
distributed under the License is distributed on an "AS IS" BASIS,
WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
See the License for the specific language governing permissions and
limitations under the License.
-->
<!-- Note: A "Server" is not itself a "Container", so you may not
define subcomponents such as "Valves" at this level.
Documentation at /docs/config/server.html
-->
<Server port="8005" shutdown="SHUTDOWN">
<!-- Security listener. Documentation at /docs/config/listeners.html
<Listener className="org.apache.catalina.security.SecurityListener" />
-->
<!--The connectors can use a shared executor, you can define one or more named thread pools-->
<!--
<Executor name="tomcatThreadPool" namePrefix="catalina-exec-"
maxThreads="150" minSpareThreads="4"/>
-->
<!-- A "Connector" represents an endpoint by which requests are received
and responses are returned. Documentation at :
Java HTTP Connector: /docs/config/http.html (blocking & non-blocking)
Java AJP Connector: /docs/config/ajp.html
APR (HTTP/AJP) Connector: /docs/apr.html
Define a non-SSL HTTP/1.1 Connector on port 8080
-->
<Connector port="8080" protocol="HTTP/1.1"
connectionTimeout="20000"
redirectPort="8443" />
<!-- A "Connector" using the shared thread pool-->
<!--
<Connector executor="tomcatThreadPool"
port="8080" protocol="HTTP/1.1"
connectionTimeout="20000"
redirectPort="8443" />
-->
<!-- Define a SSL HTTP/1.1 Connector on port 8443
This connector uses the JSSE configuration, when using APR, the
connector should be using the OpenSSL style configuration
described in the APR documentation -->
<!--
<Connector port="8443" protocol="HTTP/1.1" SSLEnabled="true"
maxThreads="150" scheme="https" secure="true"
clientAuth="false" sslProtocol="TLS" />
-->
<!-- Define an AJP 1.3 Connector on port 8009 -->
<Connector port="8009" protocol="AJP/1.3" redirectPort="8443" />
<!-- An Engine represents the entry point (within Catalina) that processes
every request. The Engine implementation for Tomcat stand alone
analyzes the HTTP headers included with the request, and passes them
on to the appropriate Host (virtual host).
Documentation at /docs/config/engine.html -->
<!-- You should set jvmRoute to support load-balancing via AJP ie :
<Engine name="Catalina" defaultHost="localhost" jvmRoute="jvm1">
-->
<Engine name="Catalina" defaultHost="localhost">
<Cluster className="org.apache.catalina.ha.tcp.SimpleTcpCluster"/>
<!--For clustering, please take a look at documentation at:
/docs/cluster-howto.html (simple how to)
/docs/config/cluster.html (reference documentation) -->
<!--
<Cluster className="org.apache.catalina.ha.tcp.SimpleTcpCluster"/>
-->
<!-- Use the LockOutRealm to prevent attempts to guess user passwords
via a brute-force attack -->
<Realm className="org.apache.catalina.realm.LockOutRealm">
<!-- This Realm uses the UserDatabase configured in the global JNDI
resources under the key "UserDatabase". Any edits
that are performed against this UserDatabase are immediately
available for use by the Realm. -->
<Realm className="org.apache.catalina.realm.UserDatabaseRealm"
resourceName="UserDatabase"/>
</Realm>
<Host name="localhost" appBase="webapps"
unpackWARs="true" autoDeploy="true">
<!-- SingleSignOn valve, share authentication between web applications
Documentation at: /docs/config/valve.html -->
<!--
<Valve className="org.apache.catalina.authenticator.SingleSignOn" />
-->
<!-- Access log processes all example.
Documentation at: /docs/config/valve.html
Note: The pattern used is equivalent to using pattern="common" -->
<Valve className="org.apache.catalina.valves.AccessLogValve" directory="logs"
prefix="localhost_access_log." suffix=".txt"
pattern="%h %l %u %t "%r" %s %b" />
</Host>
</Engine>
For the default cluster configuration to work between multipl machines, multicast needs to be working. If the nodes can't see each then then the chances are that multicast is not enabled in one or more of the machnes / blocked at the network level / machines are on a different subnet.
In this case, you can use static membership to explicitly define the other machines in the cluster. See the Tomcat clustering docs for details.
Inside <Host></Host>, you need to do clustering.
Make use of the following example to modify your server.xml:
<Host name="site1.mydomain.net" debug="0" appBase="webapps" unpackWARs="true" autoDeploy="true">
<Logger className="org.apache.catalina.logger.FileLogger" directory="logs" prefix="virtual_log1." suffix=".log" timestamp="true"/>
<Context path="" docBase="/usr/share/tomcat/webapps/myapp" debug="0" reloadable="true"/>
<Cluster className="org.apache.catalina.ha.tcp.SimpleTcpCluster">
<Manager className="org.apache.catalina.ha.session.DeltaManager" expireSessionsOnShutdown="false" notifyListenersOnReplication="true"/>
<Channel className="org.apache.catalina.tribes.group.GroupChannel">
<Receiver className="org.apache.catalina.tribes.transport.nio.NioReceiver"
address="10.99.60.170"
port="8082"
selectorTimeout="100"
maxThreads="6"/>
<Interceptor className="org.apache.catalina.tribes.group.interceptors.TcpFailureDetector"/>
<Interceptor className="org.apache.catalina.tribes.group.interceptors.StaticMembershipInterceptor">
<Member className="org.apache.catalina.tribes.membership.StaticMember"
port="8083"
securePort="-1"
host="10.99.60.172"
domain="staging-cluster"
uniqueId="{0,1,2,3,4,5,6,7,8,9}"/>
</Interceptor>
</Channel>
<Valve className="org.apache.catalina.ha.tcp.ReplicationValve" filter=""/>
<Valve className="org.apache.catalina.ha.session.JvmRouteBinderValve"/>
<ClusterListener className="org.apache.catalina.ha.session.JvmRouteSessionIDBinderListener"/>
<ClusterListener className="org.apache.catalina.ha.session.ClusterSessionListener"/>
<Deployer className="org.apache.catalina.ha.deploy.FarmWarDeployer"
tempDir="/usr/share/tomcat/temp/"
deployDir="/usr/share/tomcat/webapps/"
watchDir="/usr/share/tomcat/watch/"
watchEnabled="true"/>
</Cluster>
</Host>
Try to use configuration as per below server.xml
<?xml version='1.0' encoding='utf-8'?>
<!--
Licensed to the Apache Software Foundation (ASF) under one or more
contributor license agreements. See the NOTICE file distributed with
this work for additional information regarding copyright ownership.
The ASF licenses this file to You under the Apache License, Version 2.0
(the "License"); you may not use this file except in compliance with
the License. You may obtain a copy of the License at
http://www.apache.org/licenses/LICENSE-2.0
Unless required by applicable law or agreed to in writing, software
distributed under the License is distributed on an "AS IS" BASIS,
WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
See the License for the specific language governing permissions and
limitations under the License.
-->
<!-- Note: A "Server" is not itself a "Container", so you may not
define subcomponents such as "Valves" at this level.
Documentation at /docs/config/server.html
-->
<Server port="8006" shutdown="SHUTDOWN">
<!-- TomEE plugin for Tomcat -->
<Listener className="org.apache.tomee.catalina.ServerListener" />
<!-- Security listener. Documentation at /docs/config/listeners.html
<Listener className="org.apache.catalina.security.SecurityListener" />
-->
<!--APR library loader. Documentation at /docs/apr.html -->
<Listener className="org.apache.catalina.core.AprLifecycleListener" SSLEngine="on" />
<!--Initialize Jasper prior to webapps are loaded. Documentation at /docs/jasper-howto.html -->
<Listener className="org.apache.catalina.core.JasperListener" />
<!-- Prevent memory leaks due to use of particular java/javax APIs-->
<Listener className="org.apache.catalina.core.JreMemoryLeakPreventionListener" />
<Listener className="org.apache.catalina.mbeans.GlobalResourcesLifecycleListener" />
<Listener className="org.apache.catalina.core.ThreadLocalLeakPreventionListener" />
<!-- Global JNDI resources
Documentation at /docs/jndi-resources-howto.html
-->
<GlobalNamingResources>
<!-- Editable user database that can also be used by
UserDatabaseRealm to authenticate users
-->
<Resource name="UserDatabase" auth="Container"
type="org.apache.catalina.UserDatabase"
description="User database that can be updated and saved"
factory="org.apache.catalina.users.MemoryUserDatabaseFactory"
pathname="conf/tomcat-users.xml" />
</GlobalNamingResources>
<!-- A "Service" is a collection of one or more "Connectors" that share
a single "Container" Note: A "Service" is not itself a "Container",
so you may not define subcomponents such as "Valves" at this level.
Documentation at /docs/config/service.html
-->
<Service name="Catalina">
<!--The connectors can use a shared executor, you can define one or more named thread pools-->
<!--
<Executor name="tomcatThreadPool" namePrefix="catalina-exec-"
maxThreads="150" minSpareThreads="4"/>
-->
<!-- A "Connector" represents an endpoint by which requests are received
and responses are returned. Documentation at :
Java HTTP Connector: /docs/config/http.html (blocking & non-blocking)
Java AJP Connector: /docs/config/ajp.html
APR (HTTP/AJP) Connector: /docs/apr.html
Define a non-SSL HTTP/1.1 Connector on port 8080
-->
<Connector port="8082" protocol="HTTP/1.1"
connectionTimeout="20000"
redirectPort="8443" />
<!-- A "Connector" using the shared thread pool-->
<!--
<Connector executor="tomcatThreadPool"
port="8080" protocol="HTTP/1.1"
connectionTimeout="20000"
redirectPort="8443" />
-->
<!-- Define a SSL HTTP/1.1 Connector on port 8443
This connector uses the JSSE configuration, when using APR, the
connector should be using the OpenSSL style configuration
described in the APR documentation -->
<!--
<Connector port="8443" protocol="HTTP/1.1" SSLEnabled="true"
maxThreads="150" scheme="https" secure="true"
clientAuth="false" sslProtocol="TLS" />
-->
<!-- Define an AJP 1.3 Connector on port 8009 -->
<Connector port="8011" protocol="AJP/1.3" redirectPort="8443" />
<!-- An Engine represents the entry point (within Catalina) that processes
every request. The Engine implementation for Tomcat stand alone
analyzes the HTTP headers included with the request, and passes them
on to the appropriate Host (virtual host).
Documentation at /docs/config/engine.html -->
<!-- You should set jvmRoute to support load-balancing via AJP ie :
<Engine name="Catalina" defaultHost="localhost" jvmRoute="jvm1">
-->
<Engine name="Catalina" defaultHost="localhost" jvmRoute="tomcat2">
<!--For clustering, please take a look at documentation at:
/docs/cluster-howto.html (simple how to)
/docs/config/cluster.html (reference documentation) -->
<!--
<Cluster className="org.apache.catalina.ha.tcp.SimpleTcpCluster"/>
-->
<Cluster className="org.apache.catalina.ha.tcp.SimpleTcpCluster" channelSendOptions="8">
<Manager className="org.apache.catalina.ha.session.DeltaManager"
expireSessionsOnShutdown="false"
notifyListenersOnReplication="true"/>
<Channel className="org.apache.catalina.tribes.group.GroupChannel">
<Membership className="org.apache.catalina.tribes.membership.McastService"
address="228.0.0.4"
port="45566"
frequency="500"
dropTime="3000"/>
<Sender className="org.apache.catalina.tribes.transport.ReplicationTransmitter">
<Transport className="org.apache.catalina.tribes.transport.nio.PooledParallelSender"/>
</Sender>
<Receiver className="org.apache.catalina.tribes.transport.nio.NioReceiver"
address="172.16.17.244"
port="4002"
autoBind="100"
selectorTimeout="5000"
maxThreads="6"/>
<Interceptor className="org.apache.catalina.tribes.group.interceptors.TcpFailureDetector"/>
<!-- <Interceptor className="org.apache.catalina.tribes.group.interceptors.MessageDispatch15Interceptor"/>
-->
<Interceptor className="org.apache.catalina.tribes.group.interceptors.StaticMembershipInterceptor">
<Member className="org.apache.catalina.tribes.membership.StaticMember"
port="4001"
securePort="-1"
host="192.168.80.128"
domain="staging-cluster"
uniqueId="{0,1,2,3,4,5,6,7,8,9}"/>
</Interceptor>
</Channel>
<Valve className="org.apache.catalina.ha.tcp.ReplicationValve" filter=""/>
<Valve className="org.apache.catalina.ha.session.JvmRouteBinderValve"/>
<ClusterListener className="org.apache.catalina.ha.session.JvmRouteSessionIDBinderListener"/>
<ClusterListener className="org.apache.catalina.ha.session.ClusterSessionListener"/>
</Cluster>
<!-- Use the LockOutRealm to prevent attempts to guess user passwords
via a brute-force attack -->
<Realm className="org.apache.catalina.realm.LockOutRealm">
<!-- This Realm uses the UserDatabase configured in the global JNDI
resources under the key "UserDatabase". Any edits
that are performed against this UserDatabase are immediately
available for use by the Realm. -->
<Realm className="org.apache.catalina.realm.UserDatabaseRealm"
resourceName="UserDatabase"/>
</Realm>
<Host name="localhost" appBase="webapps"
unpackWARs="true" autoDeploy="true">
<!-- SingleSignOn valve, share authentication between web applications
Documentation at: /docs/config/valve.html -->
<!--
<Valve className="org.apache.catalina.authenticator.SingleSignOn" />
-->
<!-- Access log processes all example.
Documentation at: /docs/config/valve.html
Note: The pattern used is equivalent to using pattern="common" -->
<Valve className="org.apache.catalina.valves.AccessLogValve" directory="logs"
prefix="localhost_access_log." suffix=".txt"
pattern="%h %l %u %t "%r" %s %b" />
</Host>
</Engine>
</Service>
</Server>
In this xml please refer bellow tag...
<Interceptor className="org.apache.catalina.tribes.group.interceptors.StaticMembershipInterceptor">
<Member className="org.apache.catalina.tribes.membership.StaticMember"
**port="4001"**
securePort="-1"
**host="192.168.80.128"**
domain="staging-cluster"
uniqueId="{0,1,2,3,4,5,6,7,8,9}"/>
</Interceptor>
In this
host = system ip of the tomcat running on another machine and
port = receiver port of the tomcat running on another machine
In below receiver tag ...
<Receiver className="org.apache.catalina.tribes.transport.nio.NioReceiver"
address="172.16.17.244"
port="4002"
autoBind="100"
selectorTimeout="5000"
maxThreads="6"/>
address = is current machines ip address
Make these above changes in server.xml of tomcat running on current machine.
Similar changes need to be done in server.xml of tomcat running on other machine; only system ips and port will change.
Hope this will help you..

mod_jk utf-8 character set setup

I am running httpd + mod_jk + 2 tomcat servers in Ubuntu. When I submit a form in a non-Latin language I get garbage in the DB.
If I submit the same form through Tomcat directly bypassing httpd everything looks good.
following is my configuration:
/etc/apache2/conf.d/charset:
AddDefaultCharset UTF-8
tomcat1:
< Connector port="8080" protocol="AJP/1.3" connectionTimeout="20000" redirectPort="8443" URIEncoding="UTF-8" />
tomcat2:
< Connector port="9080" protocol="AJP/1.3" connectionTimeout="20000" redirectPort="9443" URIEncoding="UTF-8" />
JDBC connection:
jdbc:mysql://localhost:3306/myapp?useEncoding=true&characterEncoding=UTF-8
/etc/apache2/mods-available/jk.conf (the same file I set up my loadbalancer)
JkOptions +ForwardURICompatUnparsed
Am I missing something?
Thank You!
I found my problem, I mixed up the HTTP connector with the AJP connector which was declared twice in Tomcat's server.xml . The second declaration did not even include the attribute URIEncoding.
<Connector URIEncoding="UTF-8" port="8009" protocol="AJP/1.3" connectionTimeout="10000" keepAliveTimeout="10000" redirectPort="8443"/>
work fine for me

Edit tomcats server.xml using ksh?

I'm wondering whats the easiest way to change some settings in tomcats conf/server.xml configuration file through a ksh script?
For example, I want to change the default ports on these 2 snippets:
Replace this:
<Connector port="8080" protocol="HTTP/1.1" connectionTimeout="20000" redirectPort="8443" />
With this:
<Connector port="8081" protocol="HTTP/1.1" connectionTimeout="20000" redirectPort="8443" />
And,
Replace this:
<Server port="8005" shutdown="SHUTDOWN">
With this:
<Server port="8006" shutdown="SHUTDOWN">
Many thanks!
I guess you want to change this in the config? This would be a simple sed, you can make it a bit safer by adding more than just the number:
sed -i 's/8005/8006' server.xml

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