Re: [somewhat OT] Apache Tomcat7 service start randomly after the installation of McAfee antivirus.
Blachon, Philippe wrote: Good morning, We have 4 identical servers with a scheduled task running every night on each of them. This task Stop Tomcat - Update some data - Start Tomcat. This worked fine for months. We have installed a new antivirus McAfee 3 weeks ago. Now the Tomcat7 service starts randomly. At least 1 of the 4 server needs a manual start of the Tomcat7 service every morning. Do you know if there is specifics problems between Tomcat and Mc Afee ? We have already tried to exclude Tomcat.exe from McAfee scanning. Is there other thing we could exclude without compromising the security ? Configuration: Windows server 2008 R2 Standard - SP1 Apache Tomcat 7.0.29 Server McAffee Agent 4.8.0.1500 Mcafee VirusScan Enterprise 8.8.04001 Thanks, have a nice day, Philippe Blachon. Not a direct answer to your question, but maybe a bit of lateral and logical thinking here : Why would one run a virus scanner permanently on a Tomcat server ? And why run it on most of the disk space, as opposed to just the few directories where some client /might/ upload external files ? Do the applications even allow clients to put files on that server ? - To unsubscribe, e-mail: users-unsubscr...@tomcat.apache.org For additional commands, e-mail: users-h...@tomcat.apache.org
Re: tomcat8: delayed file operations with webdav
Ok, that's quite funny. With tomcat 6.0.41 and 7.0.54 the file is available immediately after upload (even without disabling the static resource caching). So either it's a bug or a feature in tomcat 8. Regards, Philippe - To unsubscribe, e-mail: users-unsubscr...@tomcat.apache.org For additional commands, e-mail: users-h...@tomcat.apache.org
Re: tomcat8: delayed file operations with webdav
2014-07-02 12:51 GMT+04:00 Philippe d4naqaakgrnq6gizaigaqa...@protected32.unixadm.org: Ok, that's quite funny. With tomcat 6.0.41 and 7.0.54 the file is available immediately after upload (even without disabling the static resource caching). So either it's a bug or a feature in tomcat 8. There is no such attribute as cachingAllowed on Context in Tomcat 8. The attribute was moved to nested Resources element. http://tomcat.apache.org/migration-8.html#Web_application_resources Best regards, Konstantin Kolinko - To unsubscribe, e-mail: users-unsubscr...@tomcat.apache.org For additional commands, e-mail: users-h...@tomcat.apache.org
Re: Where can I store data files in a tomcat war
I guess I'm a little confused as to what this means. I have a simple WAR based web application that uses Lucene created indexes to provide search results in a xml format. Especially given the following context: and supplementary question how do I modify my pom file to do this with maven I was under the impression that Paul was building a separate application using Lucene during the build stage to create the indexes, but then using an application - specific mechanism to use those indexes. That's what I thought, too. Yes correct, let me explain it a bit further. I'm trying to deploy an application that serves results from a lucene index in response to user requests. Deploying it manually to my own server is fine, first of all I just copy the index files to a location on the disk, then I deploy my application, and within its web.xml I have a servlet parameter that defines where the indexes are, so within the servlets init() method i initilize the indexes. The problem is that I'm trying to deploy my application to Amazon Web Services using autoscaled Elastic Beanstalk, this means that the application has to be able to be initilized and created based on what is in the war because Elastic Beanstalk will automatically start new servers as required due to load and terminate those instances when not required. I do seem to have a solution, but I detail it here because it doesn't seem quite right and might be useful to others. Short Answer: Originally I first tried putting the index files (unzipped) into the src/main/resources folder of my maven project, and referred to the WEB-INF/classes/index_dir location in my web.xml and tomcat didn't start. It didnt seem right for non Java classes to be in that folder anyway so I discarded that idea, however Ive just tried it again locally and it worked so if it works on EB that is the solution I'm going to use for now unless any better suggestions. It does mean that the resulting .war file is rather large, far too large to upload from my local machine but as I build the code and indexes from another AWS EC2 instance I can just dump it into S3, and deploy from S3 to EB, if I need to redeploy you dont seem able to redeploy from S3 but Ive realised that when I need to redeploy I would do it to a new EB configuration and then swap the dns from EB1 to EB2 to mimimize downtime so that is not really a problem. A supplementary question: Is there a system property I can use to refer to the WEB-INF as a relative directory rather than full path Long Answer: Since originally posting this question I have looked at a few other possible solutions but none were satisfactory. 1. Deploy war without indexes but in my servlet init() method write code to grab the compressed indexes from S3 and unzip to location specified in web.xml. This worked with a single instance EB but unfortunately AWS does not wait for the init() method (which takes 20 minutes) to finish before declaring it, and this meant because it was busy unzipping indexes and could not serve request it caused AWS monitoring to declare it to busy and open another two instances, once all three instances finished their init() method they were all up and working , then a few minutes two were terminated because not needed. But this means if server is genuinely busy the newly started instances will be declared ready by AWS but fail to service requests during the init() period. This seems like a bug with AWS but not going to change anytime soon. 2. Deploy war without indexes and use AWS .ebextensions files to grab and unzip the indexes. This might work but I really dislike having to write custom deployment code/configurations as a general rule. And because the size of the disk provided by the AWS instance is limited, unzipping is not so simple. For example instead of creating a tar.gz file , I had to gzip the files first and then tar so when untarrred I could decompress one file at a time which required less temporaray space, this would make the eb code more complex. 3. Create a custom Amazon Image that can be used by EB, this seems theoretically possible but quickly got very messy and seemed very much a hack. 4. Use Docker, AWS now supports the docker framework. This might be a good solution but having spent far too much time on understanding AWS I wasnt keen to spen dmore time on yet another framework to solve one problem If the Lucene API is used, then writing a servlet context listener that digs out the initial indexes and places them in java.io.tmpdir in a known subdirectory is probably the way to go. This ensures that even if a WAR file is not exploded, the Lucene DirectoryReader API can get to the files. That's precisely what I was suggesting. So this is what I did with 1 but because of the AWS issue didnt work as well as hoped. Paul - To unsubscribe, e-mail:
Re: Error in DBCP Connection Pool with tomcat 6.x
On Wed, Jul 2, 2014 at 1:48 AM, Vijendra Pachoriya vijendra.pachor...@indegene.com wrote: Hi Filip, This error comes at some point of time on production, when the server is on load. I am using hibernate and not closing any connection manually, its all managed by hibernate and tomcat dbcp connection pool. For me it seems like DBCP is trying to close the connection which is already closed by the database server. Have you tried looking at your database server logs to see if it's closing the connection? You mentioned it's under load. Perhaps you've hit some limit (real or arbitrary) and it's dropping you. Dan Please refer below related links. https://issues.apache.org/jira/browse/DBCP-329 http://markmail.org/message/c2gx2xuzum4pv743#query:+page:1+mid:ncvixx4ewe7pho2x+state:results Regards, Vijendra -Original Message- From: Filip Hanik [mailto:fi...@hanik.com] Sent: 01 July 2014 21:06 To: Tomcat Users List Subject: Re: Error in DBCP Connection Pool with tomcat 6.x Looks like your code already called java.sql.Connection.close() and then attempts to use the connection again Filip On Tue, Jul 1, 2014 at 8:09 AM, Propes, Barry L barry.l.pro...@citi.com wrote: -Original Message- From: Vijendra Pachoriya [mailto:vijendra.pachor...@indegene.com] Sent: Tuesday, July 01, 2014 2:31 AM To: users@tomcat.apache.org Cc: Alok Roy Subject: Error in DBCP Connection Pool with tomcat 6.x Hi Tomcat Team, Please help me out in solving below error. Below is the details : Configuration in my context.xml Resource name=jdbc/ABC auth=Container type=javax.sql.DataSource maxActive=50 maxIdle=10 maxWait=1 username=ABC password=ABC removeAbandoned=true logAbandoned=true testOnBorrow=true testWhileIdle=true timeBetweenEvictionRunsMillis=3 validationQuery=SELECT 1 FROM dual driverClassName=oracle.jdbc.driver.OracleDriver url=jdbc:oracle:thin:@MY_DB / ==Error Message at org.apache.jk.common.ChannelSocket.processConnection(ChannelSocket.java:705) at org.apache.jk.common.ChannelSocket$SocketConnection.runIt(ChannelSocket.java:898) at org.apache.tomcat.util.threads.ThreadPool$ControlRunnable.run(ThreadPool.java:690) at java.lang.Thread.run(Thread.java:679) Caused by: org.springframework.transaction.TransactionSystemException: Could not roll back JPA transaction; nested exception is javax.persistence.PersistenceException: unexpected error when rollbacking at org.springframework.orm.jpa.JpaTransactionManager.doRollback(JpaTransactionManager.java:486) at org.springframework.transaction.support.AbstractPlatformTransactionManager.processRollback(AbstractPlatformTransactionManager.java:800) at org.springframework.transaction.support.AbstractPlatformTransactionManager.rollback(AbstractPlatformTransactionManager.java:777) at org.springframework.transaction.interceptor.TransactionAspectSupport.completeTransactionAfterThrowing(TransactionAspectSupport.java:339) at org.springframework.transaction.interceptor.TransactionInterceptor.invoke(TransactionInterceptor.java:110) at org.springframework.aop.framework.ReflectiveMethodInvocation.proceed(ReflectiveMethodInvocation.java:171) at org.springframework.aop.framework.JdkDynamicAopProxy.invoke(JdkDynamicAopProxy.java:204) at sun.proxy.$Proxy185.selectPharmaUser(Unknown Source) at com.aptilon.axcelrx.server.service.impl.AuthenticationServiceImpl.login(AuthenticationServiceImpl.java:170) at com.aptilon.axcelrx.server.ws.endpoint.AuthenticationEndpoint.login_aroundBody0(AuthenticationEndpoint.java:110) ... 45 more Caused by: javax.persistence.PersistenceException: unexpected error when rollbacking at org.hibernate.ejb.TransactionImpl.rollback(TransactionImpl.java:88) at org.springframework.orm.jpa.JpaTransactionManager.doRollback(JpaTransactionManager.java:482) ... 54 more Caused by: org.hibernate.exception.GenericJDBCException: Cannot release connection at org.hibernate.exception.SQLStateConverter.handledNonSpecificException(SQLStateConverter.java:126) at org.hibernate.exception.SQLStateConverter.convert(SQLStateConverter.java:114) at org.hibernate.exception.JDBCExceptionHelper.convert(JDBCExceptionHelper.java:66) at org.hibernate.exception.JDBCExceptionHelper.convert(JDBCExceptionHelper.java:52) at org.hibernate.jdbc.ConnectionManager.closeConnection(ConnectionManager.java:478) at
Loading Tomcat into an already running JVM
I have an unusual need that I've been unable to find an answer for. I would like to load Tomcat into an already running JVM. I have a process that performs some work, loads the JVM dynamically, and I would like to load and start Tomcat into that JVM. Has anyone done this or can anyone provide some guidance on how to go about doing this? I'm currently trying this with Tomcat 7.0.54 on Linux. Regards, Todd - To unsubscribe, e-mail: users-unsubscr...@tomcat.apache.org For additional commands, e-mail: users-h...@tomcat.apache.org
Re: Where can I store data files in a tomcat war
On 02/07/2014 11:49, Paul Taylor wrote: I guess I'm a little confused as to what this means. I have a simple WAR based web application that uses Lucene created indexes to provide search results in a xml format. Especially given the following context: and supplementary question how do I modify my pom file to do this with maven I was under the impression that Paul was building a separate application using Lucene during the build stage to create the indexes, but then using an application - specific mechanism to use those indexes. That's what I thought, too. Yes correct, let me explain it a bit further. I'm trying to deploy an application that serves results from a lucene index in response to user requests. Deploying it manually to my own server is fine, first of all I just copy the index files to a location on the disk, then I deploy my application, and within its web.xml I have a servlet parameter that defines where the indexes are, so within the servlets init() method i initilize the indexes. The problem is that I'm trying to deploy my application to Amazon Web Services using autoscaled Elastic Beanstalk, this means that the application has to be able to be initilized and created based on what is in the war because Elastic Beanstalk will automatically start new servers as required due to load and terminate those instances when not required. I do seem to have a solution, but I detail it here because it doesn't seem quite right and might be useful to others. Short Answer: Originally I first tried putting the index files (unzipped) into the src/main/resources folder of my maven project, and referred to the WEB-INF/classes/index_dir location in my web.xml and tomcat didn't start. It didnt seem right for non Java classes to be in that folder anyway so I discarded that idea, however Ive just tried it again locally and it worked so if it works on EB that is the solution I'm going to use for now unless any better suggestions. It does mean that the resulting .war file is rather large, far too large to upload from my local machine but as I build the code and indexes from another AWS EC2 instance I can just dump it into S3, and deploy from S3 to EB, if I need to redeploy you dont seem able to redeploy from S3 but Ive realised that when I need to redeploy I would do it to a new EB configuration and then swap the dns from EB1 to EB2 to mimimize downtime so that is not really a problem. Bother - it doesn't work because of an arbitary limit of 524,288,000 bytes (1/2 GB) on the size of the war that can be deployed to EB. Don't know why Amzon have this limit but because my war now contains the index files its larger than that. Looks to me the only possibility of getting it working properly is to use .ebextensions or Docker Paul - To unsubscribe, e-mail: users-unsubscr...@tomcat.apache.org For additional commands, e-mail: users-h...@tomcat.apache.org
Re: Loading Tomcat into an already running JVM
On 02/07/2014 13:23, Todd Little wrote: I have an unusual need that I've been unable to find an answer for. I would like to load Tomcat into an already running JVM. I have a process that performs some work, loads the JVM dynamically, and I would like to load and start Tomcat into that JVM. Has anyone done this or can anyone provide some guidance on how to go about doing this? I'm currently trying this with Tomcat 7.0.54 on Linux. You can embed Tomcat in any other Java app and then load it when required. Look at the unit tests for examples of how to do this. There is also an embedded distribution that has exactly the same features but in fewer JARs. Mark - To unsubscribe, e-mail: users-unsubscr...@tomcat.apache.org For additional commands, e-mail: users-h...@tomcat.apache.org
Re: Help with Tomcat 7 clustering using BIO receiver
?
2014-06-30 18:38 GMT-03:00 João Sávio joaosa...@gmail.com:
Hello people
This is my first message on this group! I'm trying to set up a Tomcat
clustering using BIO receiver but I've been receiving the following error
when I started two nodes and tried to enter on my application:
Jun 30, 2014 9:25:12 PM
org.apache.catalina.tribes.transport.bio.BioReplicationT
ask run
SEVERE: Unable to service bio socket
java.net.SocketTimeoutException: Read timed out
at java.net.SocketInputStream.socketRead0(Native Method)
at java.net.SocketInputStream.read(SocketInputStream.java:152)
at java.net.SocketInputStream.read(SocketInputStream.java:122)
at java.net.SocketInputStream.read(SocketInputStream.java:108)
at
org.apache.catalina.tribes.transport.bio.BioReplicationTask.drainSock
et(BioReplicationTask.java:146)
at
org.apache.catalina.tribes.transport.bio.BioReplicationTask.run(BioRe
plicationTask.java:64)
at
java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.
java:1145)
at
java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor
.java:615)
at java.lang.Thread.run(Thread.java:744)
Jun 30, 2014 9:25:15 PM org.apache.catalina.ha.session.DeltaManager
startInternal
INFO: Register manager localhost#/myApp to cluster element Engine with
name Catalina
Jun 30, 2014 9:25:15 PM org.apache.catalina.ha.session.DeltaManager
startInternal
INFO: Starting clustering manager at localhost#/myApp
Jun 30, 2014 9:25:15 PM org.apache.catalina.ha.session.DeltaManager
getAllClusterSessions
INFO: Manager [localhost#/myApp], requesting session state from
org.apache.catalina.tribes.membership.MemberImpl[tcp://{10, 212, 191,
209}:4000,{10, 212, 191, 2
09},4000, alive=32096, securePort=-1, UDP Port=-1, id={-58 95 -116 89 86
-12 714 -75 -2 74 -45 -54 -82 40 -114 }, payload={}, command={},
domain={}, ]. This operation will timeout if no session state has been
received within 60 seconds.
Attached are my two server.xml configuration. I've taken the default
configuration (worked on my computer) and replaced the following things:
Receiver className=org.apache.catalina.tribes.transport.nio.NioReceiver
by
Receiver className=org.apache.catalina.tribes.transport.bio.BioReceiver
and
Transport
className=org.apache.catalina.tribes.transport.nio.PooledParallelSender/
by
Transport
className=org.apache.catalina.tribes.transport.bio.PooledMultiSender/
I don't know if I'm missing something. I'll be very thankful if someone
can take a look on my server.xml files or send me an example configuration
using BIO receiver (I couldn't find anyone).
Thanks
João
--
http://joaosavio.wordpress.com
--
http://joaosavio.wordpress.com
Re: Where can I store data files in a tomcat war
On Wed, Jul 02, 2014 at 11:49:36AM +0100, Paul Taylor wrote: I have a simple WAR based web application that uses Lucene created indexes to provide search results in a xml format. Especially given the following context: and supplementary question how do I modify my pom file to do this with maven I was under the impression that Paul was building a separate application using Lucene during the build stage to create the indexes, but then using an application - specific mechanism to use those indexes. That's what I thought, too. Yes correct, let me explain it a bit further. I'm trying to deploy an application that serves results from a lucene index in response to user requests. Deploying it manually to my own server is fine, first of all I just copy the index files to a location on the disk, then I deploy my application, and within its web.xml I have a servlet parameter that defines where the indexes are, so within the servlets init() method i initilize the indexes. The problem is that I'm trying to deploy my application to Amazon Web Services using autoscaled Elastic Beanstalk, this means that the application has to be able to be initilized and created based on what is in the war because Elastic Beanstalk will automatically start new servers as required due to load and terminate those instances when not required. So it sounds like this index is static, produced somewhere else and only consulted read-only by 1..N instances of your webapp. Could you not just plop one uncompressed copy of the index into an EBS snapshot in an S3 bucket, and map the snapshot to each EB instance? Then just provide environmental information to the webapp as to where it should find the index. Your huge index doesn't have to live in the WAR then. I have *very* little experience with AWS, so it's quite possible I'm missing something. -- Mark H. Wood, Lead System Programmer mw...@iupui.edu Machines should not be friendly. Machines should be obedient. signature.asc Description: Digital signature
Re: Where can I store data files in a tomcat war
-BEGIN PGP SIGNED MESSAGE- Hash: SHA256 Paul, On 7/2/14, 6:49 AM, Paul Taylor wrote: [L]et me explain it a bit further. I'm trying to deploy an application that serves results from a lucene index in response to user requests. Deploying it manually to my own server is fine, first of all I just copy the index files to a location on the disk, then I deploy my application, and within its web.xml I have a servlet parameter that defines where the indexes are, so within the servlets init() method i initilize the indexes. The problem is that I'm trying to deploy my application to Amazon Web Services using autoscaled Elastic Beanstalk, this means that the application has to be able to be initilized and created based on what is in the war because Elastic Beanstalk will automatically start new servers as required due to load and terminate those instances when not required. I do seem to have a solution, but I detail it here because it doesn't seem quite right and might be useful to others. Short Answer: Originally I first tried putting the index files (unzipped) into the src/main/resources folder of my maven project, and referred to the WEB-INF/classes/index_dir location in my web.xml and tomcat didn't start. It didnt seem right for non Java classes to be in that folder anyway so I discarded that idea, however Ive just tried it again locally and it worked so if it works on EB that is the solution I'm going to use for now unless any better suggestions. It does mean that the resulting .war file is rather large, far too large to upload from my local machine but as I build the code and indexes from another AWS EC2 instance I can just dump it into S3, and deploy from S3 to EB, if I need to redeploy you dont seem able to redeploy from S3 but Ive realised that when I need to redeploy I would do it to a new EB configuration and then swap the dns from EB1 to EB2 to mimimize downtime so that is not really a problem. A supplementary question: Is there a system property I can use to refer to the WEB-INF as a relative directory rather than full path Don't use paths. Use the ClassLoader if Lucene can really load a file in that way. The problem is that you can't rely on EB to expand your WAR file on the disk. If EB suddenly changes its deployment model to stop expanding your WAR file, then you are hosed and your application won't work at all. Instead, you need to work around the problem. Let me restate the problem so the solution makes more sense: 1. Amazon Elastic Beanstalk requires a WAR file to deploy to a cluster 2. Lucene can't read an index out of a WAR file The solution is that the web application, packaged in a WAR file, needs to unpack the Lucene indexes onto the disk when it starts up. You can do this with a ServletContextListener. Since you expand the files, you decide where to put them. The servlet spec guarantees a temporary directory available using application.getAttribute(javax.servlet.context.tempdir). This returns a java.io.File object pointing to the temporary directory for the application. Dump your files in there (a subdirectory would be a good idea) and then point Lucene at that place on the disk. Long Answer: Since originally posting this question I have looked at a few other possible solutions but none were satisfactory. 1. Deploy war without indexes but in my servlet init() method write code to grab the compressed indexes from S3 and unzip to location specified in web.xml. That would work, too, but you'll have to pay for download time for each member of the cluster. If you pack the indexes in the WAR file, they are already available when the webapp initializes. 2. Deploy war without indexes and use AWS .ebextensions files to grab and unzip the indexes. This might work but I really dislike having to write custom deployment code/configurations as a general rule. And because the size of the disk provided by the AWS instance is limited, unzipping is not so simple. For example instead of creating a tar.gz file , I had to gzip the files first and then tar so when untarrred I could decompress one file at a time which required less temporaray space, this would make the eb code more complex. Neither tar nor gzip take very much of anything: they are both block-oriented. What procedure were you using to decompress the tarballs? Decompressing the entire tarball and then tearing it apart is a mistake: you should chain the processes together so you read from the tarball and write individual, uncompressed files to the disk. 3. Create a custom Amazon Image that can be used by EB, this seems theoretically possible but quickly got very messy and seemed very much a hack. It's a huge amount of work and the point is to give a WAR to AEB and just do it. 4. Use Docker, AWS now supports the docker framework. This might be a good solution but having spent far too much time on understanding AWS I wasnt keen to spen dmore time on yet another
Re: Where can I store data files in a tomcat war
On Wed, Jul 2, 2014 at 8:34 AM, Christopher Schultz ch...@christopherschultz.net wrote: Or, you could look into Solr which I believe understands clustering. Or ElasticSearch, also Lucene-based, which is designed from the get-go for clustering: http://www.elasticsearch.org/ -- Hassan Schroeder hassan.schroe...@gmail.com http://about.me/hassanschroeder twitter: @hassan - To unsubscribe, e-mail: users-unsubscr...@tomcat.apache.org For additional commands, e-mail: users-h...@tomcat.apache.org
Re: Help with Tomcat 7 clustering using BIO receiver
-BEGIN PGP SIGNED MESSAGE-
Hash: SHA1
On 7/2/2014 6:37 AM, João Sávio wrote:
?
2014-06-30 18:38 GMT-03:00 João Sávio joaosa...@gmail.com:
Hello people
This is my first message on this group! I'm trying to set up a
Tomcat clustering using BIO receiver but I've been receiving the
following error when I started two nodes and tried to enter on my
application:
Jun 30, 2014 9:25:12 PM
org.apache.catalina.tribes.transport.bio.BioReplicationT ask run
SEVERE: Unable to service bio socket
java.net.SocketTimeoutException: Read timed out at
java.net.SocketInputStream.socketRead0(Native Method) at
java.net.SocketInputStream.read(SocketInputStream.java:152) at
java.net.SocketInputStream.read(SocketInputStream.java:122) at
java.net.SocketInputStream.read(SocketInputStream.java:108) at
org.apache.catalina.tribes.transport.bio.BioReplicationTask.drainSock
et(BioReplicationTask.java:146)
at
org.apache.catalina.tribes.transport.bio.BioReplicationTask.run(BioRe
plicationTask.java:64)
at
java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.
java:1145)
at
java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor
.java:615)
at java.lang.Thread.run(Thread.java:744)
Jun 30, 2014 9:25:15 PM
org.apache.catalina.ha.session.DeltaManager startInternal INFO:
Register manager localhost#/myApp to cluster element Engine with
name Catalina Jun 30, 2014 9:25:15 PM
org.apache.catalina.ha.session.DeltaManager startInternal INFO:
Starting clustering manager at localhost#/myApp Jun 30, 2014
9:25:15 PM org.apache.catalina.ha.session.DeltaManager
getAllClusterSessions INFO: Manager [localhost#/myApp],
requesting session state from
org.apache.catalina.tribes.membership.MemberImpl[tcp://{10, 212,
191, 209}:4000,{10, 212, 191, 2 09},4000, alive=32096,
securePort=-1, UDP Port=-1, id={-58 95 -116 89 86 -12 714 -75 -2
74 -45 -54 -82 40 -114 }, payload={}, command={}, domain={}, ].
This operation will timeout if no session state has been received
within 60 seconds.
Attached are my two server.xml configuration. I've taken the
default configuration (worked on my computer) and replaced the
following things:
Receiver
className=org.apache.catalina.tribes.transport.nio.NioReceiver
by Receiver
className=org.apache.catalina.tribes.transport.bio.BioReceiver
and
Transport
className=org.apache.catalina.tribes.transport.nio.PooledParallelSender/
by
Transport
className=org.apache.catalina.tribes.transport.bio.PooledMultiSender/
I don't know if I'm missing something. I'll be very thankful if someone
can take a look on my server.xml files or send me an example
configuration using BIO receiver (I couldn't find anyone).
Thanks João -- http://joaosavio.wordpress.com
João,
Welcome to the list.
I've only used NIO, and it's been a while since I've used clustering.
A few questions to ask:
1. Is there a firewall blocking port 4000 (if the Tomcats are on
separate machines)?
2. Multicast enabled and routed?
3. Environment (Tomcat version, java version, platforms)?
4. Why BIO?
What are you trying to accomplish by using the BIO connector rather
than the NIO connector?
You can turn on more logging by adding something like the following to
logging.properties:
# at the end of the handlers line:
,5cluster.org.apache.juli.FileHandler
# in the handler-specific properties section:
5cluster.org.apache.juli.FileHandler.level = FINER
5cluster.org.apache.juli.FileHandler.directory = ${catalina.base}/logs
5cluster.org.apache.juli.FileHandler.prefix = cluster.
# in the facility specific properties section
# be aware of line wrapping
org.apache.catalina.tribes.MESSAGES.level = FINE
org.apache.catalina.tribes.MESSAGES.handlers =
5cluster.org.apache.juli.FileHandler
org.apache.catalina.tribes.level = FINE
org.apache.catalina.tribes.handlers = 5cluster.org.apache.juli.FileHandler
org.apache.catalina.ha.level = FINE
org.apache.catalina.ha.handlers = 5cluster.org.apache.juli.FileHander
org.apache.catalina.ha.deploy.level = INFO
org.apache.catalina.ha.deploy.handlers =
5cluster.org.apache.juli.FileHandler
Last note - we're normally a pretty helpful bunch of folks here, but
we are all volunteers. Things like work impact participation :-p. Also
as noted above, I've only used NIO so I don't know why this would not
work with BIO.
. . . just my two cents
/mde/
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Re: Error in DBCP Connection Pool with tomcat 6.x
On 7/1/14, 10:48 PM, Vijendra Pachoriya wrote: Hi Filip, This error comes at some point of time on production, when the server is on load. I am using hibernate and not closing any connection manually, its all managed by hibernate and tomcat dbcp connection pool. Two additional things to check: 1) Check logs to see if abandoned connections are being removed. If your code is closing all connections, you should not need this to be enabled. 2) Make sure that there is no sharing across threads of the Hibernate objects. Phil For me it seems like DBCP is trying to close the connection which is already closed by the database server. Please refer below related links. https://issues.apache.org/jira/browse/DBCP-329 http://markmail.org/message/c2gx2xuzum4pv743#query:+page:1+mid:ncvixx4ewe7pho2x+state:results Regards, Vijendra -Original Message- From: Filip Hanik [mailto:fi...@hanik.com] Sent: 01 July 2014 21:06 To: Tomcat Users List Subject: Re: Error in DBCP Connection Pool with tomcat 6.x Looks like your code already called java.sql.Connection.close() and then attempts to use the connection again Filip On Tue, Jul 1, 2014 at 8:09 AM, Propes, Barry L barry.l.pro...@citi.com wrote: -Original Message- From: Vijendra Pachoriya [mailto:vijendra.pachor...@indegene.com] Sent: Tuesday, July 01, 2014 2:31 AM To: users@tomcat.apache.org Cc: Alok Roy Subject: Error in DBCP Connection Pool with tomcat 6.x Hi Tomcat Team, Please help me out in solving below error. Below is the details : Configuration in my context.xml Resource name=jdbc/ABC auth=Container type=javax.sql.DataSource maxActive=50 maxIdle=10 maxWait=1 username=ABC password=ABC removeAbandoned=true logAbandoned=true testOnBorrow=true testWhileIdle=true timeBetweenEvictionRunsMillis=3 validationQuery=SELECT 1 FROM dual driverClassName=oracle.jdbc.driver.OracleDriver url=jdbc:oracle:thin:@MY_DB / ==Error Message at org.apache.jk.common.ChannelSocket.processConnection(ChannelSocket.java:705) at org.apache.jk.common.ChannelSocket$SocketConnection.runIt(ChannelSocket.java:898) at org.apache.tomcat.util.threads.ThreadPool$ControlRunnable.run(ThreadPool.java:690) at java.lang.Thread.run(Thread.java:679) Caused by: org.springframework.transaction.TransactionSystemException: Could not roll back JPA transaction; nested exception is javax.persistence.PersistenceException: unexpected error when rollbacking at org.springframework.orm.jpa.JpaTransactionManager.doRollback(JpaTransactionManager.java:486) at org.springframework.transaction.support.AbstractPlatformTransactionManager.processRollback(AbstractPlatformTransactionManager.java:800) at org.springframework.transaction.support.AbstractPlatformTransactionManager.rollback(AbstractPlatformTransactionManager.java:777) at org.springframework.transaction.interceptor.TransactionAspectSupport.completeTransactionAfterThrowing(TransactionAspectSupport.java:339) at org.springframework.transaction.interceptor.TransactionInterceptor.invoke(TransactionInterceptor.java:110) at org.springframework.aop.framework.ReflectiveMethodInvocation.proceed(ReflectiveMethodInvocation.java:171) at org.springframework.aop.framework.JdkDynamicAopProxy.invoke(JdkDynamicAopProxy.java:204) at sun.proxy.$Proxy185.selectPharmaUser(Unknown Source) at com.aptilon.axcelrx.server.service.impl.AuthenticationServiceImpl.login(AuthenticationServiceImpl.java:170) at com.aptilon.axcelrx.server.ws.endpoint.AuthenticationEndpoint.login_aroundBody0(AuthenticationEndpoint.java:110) ... 45 more Caused by: javax.persistence.PersistenceException: unexpected error when rollbacking at org.hibernate.ejb.TransactionImpl.rollback(TransactionImpl.java:88) at org.springframework.orm.jpa.JpaTransactionManager.doRollback(JpaTransactionManager.java:482) ... 54 more Caused by: org.hibernate.exception.GenericJDBCException: Cannot release connection at org.hibernate.exception.SQLStateConverter.handledNonSpecificException(SQLStateConverter.java:126) at org.hibernate.exception.SQLStateConverter.convert(SQLStateConverter.java:114) at org.hibernate.exception.JDBCExceptionHelper.convert(JDBCExceptionHelper.java:66) at org.hibernate.exception.JDBCExceptionHelper.convert(JDBCExceptionHelper.java:52) at org.hibernate.jdbc.ConnectionManager.closeConnection(ConnectionManager.java:478) at org.hibernate.jdbc.ConnectionManager.aggressiveRelease(ConnectionManager.java:429) at
Re: Where can I store data files in a tomcat war
On 02/07/2014 15:06, Mark H. Wood wrote: On Wed, Jul 02, 2014 at 11:49:36AM +0100, Paul Taylor wrote: I have a simple WAR based web application that uses Lucene created indexes to provide search results in a xml format. Especially given the following context: and supplementary question how do I modify my pom file to do this with maven I was under the impression that Paul was building a separate application using Lucene during the build stage to create the indexes, but then using an application - specific mechanism to use those indexes. That's what I thought, too. Yes correct, let me explain it a bit further. I'm trying to deploy an application that serves results from a lucene index in response to user requests. Deploying it manually to my own server is fine, first of all I just copy the index files to a location on the disk, then I deploy my application, and within its web.xml I have a servlet parameter that defines where the indexes are, so within the servlets init() method i initilize the indexes. The problem is that I'm trying to deploy my application to Amazon Web Services using autoscaled Elastic Beanstalk, this means that the application has to be able to be initilized and created based on what is in the war because Elastic Beanstalk will automatically start new servers as required due to load and terminate those instances when not required. So it sounds like this index is static, produced somewhere else and only consulted read-only by 1..N instances of your webapp. Could you not just plop one uncompressed copy of the index into an EBS snapshot in an S3 bucket, and map the snapshot to each EB instance? Then just provide environmental information to the webapp as to where it should find the index. Your huge index doesn't have to live in the WAR then. I have *very* little experience with AWS, so it's quite possible I'm missing something. It is read only, but each instance of lucene would need its own copy of the index, Lucene does special low level io with the index using memory mapping and the files do need to reside locally for acceptable performance. So the index doesnot have to exist in the WAR but it does need to exist on the EC2 instance (server). - To unsubscribe, e-mail: users-unsubscr...@tomcat.apache.org For additional commands, e-mail: users-h...@tomcat.apache.org
Re: Where can I store data files in a tomcat war
On 02/07/2014 16:34, Christopher Schultz wrote: -BEGIN PGP SIGNED MESSAGE- Hash: SHA256 Paul, On 7/2/14, 6:49 AM, Paul Taylor wrote: [L]et me explain it a bit further. I'm trying to deploy an application that serves results from a lucene index in response to user requests. Deploying it manually to my own server is fine, first of all I just copy the index files to a location on the disk, then I deploy my application, and within its web.xml I have a servlet parameter that defines where the indexes are, so within the servlets init() method i initilize the indexes. The problem is that I'm trying to deploy my application to Amazon Web Services using autoscaled Elastic Beanstalk, this means that the application has to be able to be initilized and created based on what is in the war because Elastic Beanstalk will automatically start new servers as required due to load and terminate those instances when not required. I do seem to have a solution, but I detail it here because it doesn't seem quite right and might be useful to others. Short Answer: Originally I first tried putting the index files (unzipped) into the src/main/resources folder of my maven project, and referred to the WEB-INF/classes/index_dir location in my web.xml and tomcat didn't start. It didnt seem right for non Java classes to be in that folder anyway so I discarded that idea, however Ive just tried it again locally and it worked so if it works on EB that is the solution I'm going to use for now unless any better suggestions. It does mean that the resulting .war file is rather large, far too large to upload from my local machine but as I build the code and indexes from another AWS EC2 instance I can just dump it into S3, and deploy from S3 to EB, if I need to redeploy you dont seem able to redeploy from S3 but Ive realised that when I need to redeploy I would do it to a new EB configuration and then swap the dns from EB1 to EB2 to mimimize downtime so that is not really a problem. A supplementary question: Is there a system property I can use to refer to the WEB-INF as a relative directory rather than full path Don't use paths. Use the ClassLoader if Lucene can really load a file in that way. The problem is that you can't rely on EB to expand your WAR file on the disk. If EB suddenly changes its deployment model to stop expanding your WAR file, then you are hosed and your application won't work at all. Lucene works on files and does low level io memory mapping so I do need to use paths, but anyway it doesnt matter because as describe din my last post EB doesn't allow me to have a war file big enough to hold the index files anyway. Instead, you need to work around the problem. Let me restate the problem so the solution makes more sense: 1. Amazon Elastic Beanstalk requires a WAR file to deploy to a cluster 2. Lucene can't read an index out of a WAR file The solution is that the web application, packaged in a WAR file, needs to unpack the Lucene indexes onto the disk when it starts up. You can do this with a ServletContextListener. So I do within init() method of my servlet, but EB doesnt wait for the init() method to finish before declaring the application ready, do you think it would wait for code using a ServletContextListener or fail in the same way it does for init() ? Since you expand the files, you decide where to put them. The servlet spec guarantees a temporary directory available using application.getAttribute(javax.servlet.context.tempdir). This returns a java.io.File object pointing to the temporary directory for the application. Dump your files in there (a subdirectory would be a good idea) and then point Lucene at that place on the disk. Long Answer: Since originally posting this question I have looked at a few other possible solutions but none were satisfactory. 1. Deploy war without indexes but in my servlet init() method write code to grab the compressed indexes from S3 and unzip to location specified in web.xml. That would work, too, but you'll have to pay for download time for each member of the cluster. If you pack the indexes in the WAR file, they are already available when the webapp initializes. See my later posts, it doesn't work because of problem with EB not respecting finish of init(), and I cant pack the indexes into WAR because breaks Amazons max war size of 1/2 GB 2. Deploy war without indexes and use AWS .ebextensions files to grab and unzip the indexes. This might work but I really dislike having to write custom deployment code/configurations as a general rule. And because the size of the disk provided by the AWS instance is limited, unzipping is not so simple. For example instead of creating a tar.gz file , I had to gzip the files first and then tar so when untarrred I could decompress one file at a time which required less temporaray space, this would make the eb code more complex. Neither tar nor gzip take very much of anything: they are both block-oriented. What
Silent failure to deploy or run from configuration descriptor
Apache Tomcat/7.0.28, Debian I have two configuration descriptors in /etc/tomcat7/Catalina/localhost/ One, solr.xml deploys correctly and fills catalina.out with lots of useful messages. The other fails silently to start (see below). I see the message INFO: Deploying configuration descriptor in catalina.out; then there is nothing else in catalina.out. Is there any way to cause Tomcat to output more debug information? I haven't been able to narrow an internet search to get useful answers for this problem. The most annoying thing is that this has worked fine for at least one Tomcat 6 installation. The deployment descriptor is Context docBase=/opt/myApp/MyApp.war crossContext=true Resource name=jdbc/LockDB auth=Container type=javax.sql.DataSource maxActive=100 maxIdle=30 maxWait=1 removeAbandoned=true testWhileIdle=true timeBetweenEvictionRunsMillis=6 driverClassName=com.mysql.jdbc.Driver username=myApp password=xx url=jdbc:mysql://127.0.0.1/myApp / Loader className=org.apache.catalina.loader.VirtualWebappLoader virtualClasspath=/opt/myApp/ext/*.jar;/opt/myApp/resources/ / /Context Thanks for any guidance - To unsubscribe, e-mail: users-unsubscr...@tomcat.apache.org For additional commands, e-mail: users-h...@tomcat.apache.org
Re: [ANN] Apache Tomcat 8.0.9 (stable) available
I'm also pleased to announce that Tomcat 8.0.9 is now available for Debian 7 (Wheezy) through the backport repository [1]. The repository has to be declared in /etc/apt/sources.list by adding this line: deb http://http.debian.net/debian wheezy-backports main The package can then be installed with: apt-get update apt-get install tomcat8 For Ubuntu users the package is also available for Utopic Unicorn [2] (to be released this fall). Emmanuel Bourg [1] http://backports.debian.org [2] http://packages.ubuntu.com/utopic/tomcat8 Le 26/06/2014 09:00, Mark Thomas a écrit : The Apache Tomcat team announces the immediate availability of Apache Tomcat 8.0.9, the first stable release of the 8.0.x series. Apache Tomcat 8 is an open source software implementation of the Java Servlet, JavaServer Pages, Java Unified Expression Language and Java WebSocket technologies. Apache Tomcat 8 is aligned with Java EE 7. In addition to supporting updated versions of the Java EE specifications, Tomcat 8 includes a number of improvements compared to Tomcat 7. The notable changes include: - Support for Java Servlet 3.1, JavaServer Pages 2.3, Java Unified Expression Language 3.0 and Java WebSocket 1.0. - The default connector implementation is now the Java non-blocking implementation (NIO) for both HTTP and AJP. - A new resources implementation that replaces Aliases, VirtualLoader, VirtualDirContext, JAR resources and external repositories with a single, consistent approach for configuring additional web application resources. The new resources implementation can also be used to implement overlays (using a master WAR as the basis for multiple web applications that each have their own customizations). Apache Tomcat 8.0.9 includes numerous fixes for issues identified in 8.0.8 as well as a number of other enhancements and changes. The notable changes since 8.0.8 include: - Start to move towards RFC6265 for cookie handling - Better error handling when the error occurs after the response has been committed - Various Jasper improvements to make it easier for other containers (e.g. Jetty) to consume Please refer to the change log for the complete list of changes: http://tomcat.apache.org/tomcat-8.0-doc/changelog.html Note: This version has 4 zip binaries: a generic one and three bundled with Tomcat native binaries for Windows operating systems running on different CPU architectures. Downloads: http://tomcat.apache.org/download-80.cgi Migration guides from Apache Tomcat 5.5.x, 6.0.x and 7.0.x: http://tomcat.apache.org/migration.html Enjoy! - The Apache Tomcat team - To unsubscribe, e-mail: users-unsubscr...@tomcat.apache.org For additional commands, e-mail: users-h...@tomcat.apache.org
Interface default methods
I don't want to start a war, but just curious if the Tomcat developers see any use case for adding default methods to any of the Interfaces in the API? Leo
Re: [somewhat OT] Apache Tomcat7 service start randomly after the installation of McAfee antivirus.
On Wed, Jul 2, 2014 at 2:33 AM, André Warnier a...@ice-sa.com wrote: Blachon, Philippe wrote: Good morning, We have 4 identical servers with a scheduled task running every night on each of them. This task Stop Tomcat - Update some data - Start Tomcat. This worked fine for months. We have installed a new antivirus McAfee 3 weeks ago. Now the Tomcat7 service starts randomly. At least 1 of the 4 server needs a manual start of the Tomcat7 service every morning. Do you know if there is specifics problems between Tomcat and Mc Afee ? We have already tried to exclude Tomcat.exe from McAfee scanning. Is there other thing we could exclude without compromising the security ? Configuration: Windows server 2008 R2 Standard - SP1 Apache Tomcat 7.0.29 Server McAffee Agent 4.8.0.1500 Mcafee VirusScan Enterprise 8.8.04001 Thanks, have a nice day, Philippe Blachon. Not a direct answer to your question, but maybe a bit of lateral and logical thinking here : Why would one run a virus scanner permanently on a Tomcat server ? Does the OP work in the government? My former employer had virus scanning software on every server. You couldn't get a server image without it. The answer to that question is really based on policy, if he works in government. Eventually, that server has the potential for getting a virus somehow from something or someone, and someone has to answer the question: why wasn't there virus scanning software on the server? Leo
