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From Chirag <>
Subject Re: Chirag: socket closed Endpoint ServerSocket
Date Tue, 07 Dec 2004 13:16:57 GMT
No I have checked that and no application is running at port 80
According to me the problem is that some exception is raised due to which the tomcat server
attempts to restart itself but as the server must not have released its ServerSocket it is
not able to bind the port with the ServerSocket
I don't know whether I am correct
The problem is that I am not able to see the whole Tomcat Server Exception as no log files
are created in %CATLINA_HOME%\log folder 
Can you give me the way by which I can read the whole exception as the real error is scrolled
out in Windows 98 DOS Window
I can read the whole log and provide you with all the details
Thanks in advance
So far it is making sense. Now check all your other apps and see what may already be using
port 80. One way to do this is to do ctrl + alt +del and end task until only explorer is left.
Then try Tomcat. If It works you then need to sort thru the apps and determine which one is
on port 80.

Or change Tomcat back to using port 8080.


----- Original Message ----- From: "Chirag" <[EMAIL PROTECTED]>
To: "Parsons Technical Services" <[EMAIL PROTECTED]>; <>
Sent: Tuesday, December 07, 2004 1:58 AM
Subject: Re: Chirag: socket closed Endpoint ServerSocket

Thanks for your Help

this works a little but there is one more problem

It throws another Exception

at org.apache.tomcat.util.threads.ThreadPool$ at
Dec 7, 2004 12:15:07 PM acceptSocket
WARNING: Restarting endpoint
Dec 7, 2004 12:15:07 PM acceptSocket
SEVERE: Endpoint null shutdown due to exception: Address already in
use: JVM_Bind:80 Address already in use: JVM_Bind:80
at org.apache.tomcat.util.threads.ThreadPool$
Dec 7, 2004 12:15:07 PM org.apache.tomcat.util.threads.ThreadPool$ControlRunnable run
SEVERE: Caught exception (java.lang.ThreadDeath) executing [EMAIL PROTECTED], terminating

And then Server Hangs I even tried changing the the port number from 80 to 8080 but the same

Can u give me info as to how can i read the whole log file as I get only part of the thing
in Windows 98

Thanks in advance


Parsons Technical Services <[EMAIL PROTECTED]> wrote:I think I see your problem.

You have two network cards in your machine.

Either:1. Disable the unused card. (If it is on the motherboard, do it in bios)


2. Add address= to the connector and put in your IP.See:

> maxThreads="150" minSpareThreads="25" maxSpareThreads="75"enableLookups="false" redirectPort="8443"
acceptCount="100"debug="0" connectionTimeout="20000"address=""disableUploadTimeout="true"


----- Original Message ----- From: "Chirag"
Sent: Tuesday, December 07, 2004 1:22 AM
Subject: Re: Chirag: socket closed Endpoint

Yes that's true many a times people forget the basic things

Q What OS version and service pack are you running?Ans I have running Windows 98SE 4.10.2222

Q How are you getting your IP?Are there more than one IPs on themachine?Ans When I type IPConfig
in the MS DOS Prompt. I get the following output

Windows 98 IP Configuration0 Ethernet adapter :IP Address. . . . . . . . . :
Mask . . . . . . . . : Gateway . . . . . . :1 Ethernet adapter :IP Address.
. . . . . . . . : Mask . . . . . . . . : Gateway
. . . . . . :

(IPAddresses are changed)

Q Did you define an IP for Tomcat or is it default?Ans Initially it was default but even after
modifying I mean as thecurrent server.xml looks like

>     parent-child relationships with each other -->>     which may contain one or
more "Service" instances.  The Server    listens for a shutdown command on the indicated port.
   Note:  A "Server" is not itself a "Container", so you may not    define subcomponents such
as "Valves" or "Loggers" at this level.-->

>       including your own mbean-descriptor file(s), and setting the      "descriptors"
attribute to point to a ';' seperated list of paths      (in the ClassLoader sense) of files
to add to the default list.      e.g. descriptors="/com/myfirm/mypackage/mbean-descriptor.xml"



>         UserDatabaseRealm to authenticate users -->> 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"

>       a single "Container" (and therefore the web applications visible      within that
Container).  Normally, that Container is an "Engine",      but this is not required.     
Note:  A "Service" is not itself a "Container", so you may not      define subcomponents such
as "Valves" or "Loggers" at this level.  -->

> received
and responses are returned. Each Connector passes requests on to
associated "Container" (normally an Engine) for processing.
By default, a non-SSL HTTP/1.1 Connector is established on port
You can also enable an SSL HTTP/1.1 Connector on port 8443 by
following the instructions below and uncommenting the second
entry. SSL support requires the following steps (see the SSL
HOWTO in the Tomcat 5 documentation bundle for more detailed
* If your JDK version 1.3 or prior, download and install JSSE
1.0.2 or
later, and put the JAR files into "$JAVA_HOME/jre/lib/ext".
* Execute:
%JAVA_HOME%\bin\keytool -genkey -alias tomcat -keyalg RSA
$JAVA_HOME/bin/keytool -genkey -alias tomcat -keyalg RSA
with a password value of "changeit" for both the certificate and
the keystore itself.
By default, DNS lookups are enabled when a web application calls
request.getRemoteHost(). This can have an adverse impact on
performance, so you can disable it by setting the
"enableLookups" attribute to "false". When DNS lookups are
request.getRemoteHost() will return the String version of the
IP address of the remote client.

> maxThreads="150" minSpareThreads="25" maxSpareThreads="75"enableLookups="false" redirectPort="8443"
acceptCount="100"debug="0" connectionTimeout="20000"disableUploadTimeout="true" />>
    to 0 -->

> :

     compression="on"     compressionMinSize="2048"     noCompressionUserAgents="gozilla,
traviata"     compressableMimeType="text/html,text/xml"-->

> > maxThreads="150" minSpareThreads="25" > maxSpareThreads="75"
enableLookups="false" disableUploadTimeout="true"
acceptCount="100" debug="0" scheme="https" secure="true"
clientAuth="false" sslProtocol="TLS" />

> enableLookups="false" redirectPort="8443" debug="0"protocol="AJP/1.3" />

> > maxThreads="150" minSpareThreads="25" > maxSpareThreads="75"
acceptCount="100" debug="0" connectionTimeout="20000"
proxyPort="80" disableUploadTimeout="true" />
> processes
every request. The Engine implementation for Tomcat stand alone
analyzes the HTTP headers included with the request, and passes
on to the appropriate Host (virtual host). -->
> > jvmRoute="jvm1">

> about
the request headers and cookies that were received, and the
headers and cookies that were sent, for all requests received by
this instance of Tomcat. If you care only about requests to a
particular virtual host, or a particular application, nest this
element inside the corresponding or entry
For a similar mechanism that is portable to all Servlet 2.4
containers, check out the "RequestDumperFilter" Filter in the
example application (the source for this filter may be found in
Request dumping is disabled by default. Uncomment the following
element to enable it. -->
> globally -->
> resources under the key "UserDatabase". Any edits
that are performed against this UserDatabase are immediately
available for use by the Realm. -->
> debug="0" resourceName="UserDatabase"/>
> need to go back quickly -->
> stored in a database and accessed via JDBC -->
> > driverName=""
connectionName="test" connectionPassword="test"
userTable="users" userNameCol="user_name"
userRoleTable="user_roles" roleNameCol="role_name" />
> > driverName="oracle.jdbc.driver.OracleDriver"
connectionName="scott" connectionPassword="tiger"
userTable="users" userNameCol="user_name"
userRoleTable="user_roles" roleNameCol="role_name" />
> > driverName="sun.jdbc.odbc.JdbcOdbcDriver"
userTable="users" userNameCol="user_name"
userRoleTable="user_roles" roleNameCol="role_name" />
> Note: XML Schema validation will not work with Xerces 2.2.
> unpackWARs="true" autoDeploy="true"
xmlValidation="false" xmlNamespaceAware="false">
> By defining this element, means that every manager will be
So when running a cluster, only make sure that you have
webapps in there
that need to be clustered and remove the other ones.
A cluster has the following parameters:
className = the fully qualified name of the cluster class
name = a descriptive name for your cluster, can be anything
debug = the debug level, higher means more output
mcastAddr = the multicast address, has to be the same for all
the nodes
mcastPort = the multicast port, has to be the same for all the

            mcastBindAddr = bind the multicast socket to a specificaddress

            mcastTTL = the multicast TTL if you want to limit yourbroadcast

mcastSoTimeout = the multicast readtimeout
mcastFrequency = the number of milliseconds in between sending
a "I'm alive" heartbeat
mcastDropTime = the number a milliseconds before a node is
considered "dead" if no heartbeat is received
tcpThreadCount = the number of threads to handle incoming
replication requests, optimal would be the same amount of threads as nodes
tcpListenAddress = the listen address (bind address) for TCP
cluster request on this host,
in case of multiple ethernet cards.
auto means that address becomes

tcpListenPort = the tcp listen port
tcpSelectorTimeout = the timeout (ms) for the method in case the OS
has a wakup bug in java.nio. Set to 0 for
no timeout
printToScreen = true means that managers will also print to
expireSessionsOnShutdown = true means that
useDirtyFlag = true means that we only replicate a session
after setAttribute,removeAttribute has been called.
false means to replicate the session after each
false means that replication would work for the
following piece of code:
> HashMap map =
replicationMode = can be either 'pooled', 'synchronous' or
* Pooled means that the replication happens
using several sockets in a synchronous way. Ie, the data gets replicated,
then the request return. This is the same as the 'synchronous' setting
except it uses a pool of sockets, hence it is multithreaded. This is the
fastest and safest configuration. To use this, also increase the nr of tcp
threads that you have dealing with replication.
* Synchronous means that the thread that
executes the request, is also the
thread the replicates the data to the other
nodes, and will not return until all
nodes have received the information.
* Asynchronous means that there is a
specific 'sender' thread for each cluster node,
so the request thread will queue the
replication request into a "smart" queue,
and then return to the client.
The "smart" queue is a queue where when a
session is added to the queue, and the same session
already exists in the queue from a previous
request, that session will be replaced
in the queue instead of replicating two
requests. This almost never happens, unless there is a
large network delay.
> When configuring for clustering, you also add in a valve to
catch all the requests
coming in, at the end of the request, the session may or may
not be replicated.
A session is replicated if and only if all the conditions are
1. useDirtyFlag is true or setAttribute or removeAttribute has
been called AND
2. a session exists (has been created)
3. the request is not trapped by the "filter" attribute
The filter attribute is to filter out requests that could not
modify the session,
hence we don't replicate the session after the end of this
The filter is negative, ie, anything you put in the filter, you
mean to filter out,
ie, no replication will be done on requests that match one of
the filters.
The filter attribute is delimited by ;, so you can't escape out
; even if you wanted to.
filter=".*\.gif;.*\.js;" means that we will not replicate the
session after requests with the URI
ending with .gif and .js are intercepted.

The deployer element can be used to deploy apps cluster wide.
Currently the deployment only deploys/undeploys to working
members in the cluster
so no WARs are copied upons startup of a broken node.
The deployer watches a directory (watchDir) for WAR files when
When a new war file is added the war gets deployed to the local
and then deployed to the other instances in the cluster.
When a war file is deleted from the watchDir the war is
undeployed locally
and cluster wide

>        > className="org.apache.catalina.cluster.tcp.SimpleTcpCluster"

> className="org.apache.catalina.cluster.mcast.McastService"
> className="org.apache.catalina.cluster.tcp.ReplicationValve"


> className="org.apache.catalina.cluster.deploy.FarmWarDeployer"


> individually. Uncomment the following entry if you would > like
a user to be authenticated the first time they encounter a
resource protected by a security constraint, and then have
user identity maintained across *all* web applications
in this virtual host. -->
> > debug="0"/>
> default, log files are created in the "logs" directory
relative to
$CATALINA_HOME. If you wish, you can specify a different
directory with the "directory" attribute. Specify either a
(to $CATALINA_HOME) or absolute path to the desired directory.
> > directory="logs" > prefix="localhost_access_log."
pattern="common" resolveHosts="false"/>

Even when it was default it did not worked and so I added Alias word andthen tried but then
also it did not worked

Thanks in advance


Parsons Technical Services wrote: 
Some of these questions are basic, but I have been bit many times by thesimple things.

What OS version and service pack are you running?How are you getting your IP?Are there more
than one IPs on the machine?Did you define an IP for Tomcat or is it default?


----- Original Message ----- 

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