Re: Apache AJP to 4 TCs
I did a fresh install, and it all worked. Steps documented @ http://bruniglobal.blogspot.com/2010/09/load-balancing-4-tomcats-with-apache-22.html I then went back to my old install, and noticed that I didnt specific ServerName domain:80 I did that and it all worked.. weird. Anyway, thank you all for your help on this, I really liked Mark's worker.template approach :) and Chris' questions info. If there is anything I can improve in the process, as documented, please let me know. Cheers Andrew On Fri, Sep 10, 2010 at 11:38 PM, Christopher Schultz ch...@christopherschultz.net wrote: -BEGIN PGP SIGNED MESSAGE- Hash: SHA1 Andrew, On 9/10/2010 2:52 AM, Andrew Bruno wrote: Thank you for the responses. I have gone about and installed a fresh Apache (on a seperate box), and have documented my steps in http://bruniglobal.blogspot.com/2010/09/load-balancing-4-tomcats-with-apache-22.html So far so good. I can load balance across all 4 tomcats, BUT I HAVE NOT ENABLED/ADDED SSL yet. Could the the ssl config be causing me grief? Almost certainly not. If you are using Apache httpd to terminate SSL, mod_jk doesn't even know about it (except that it will know the SSL state and pass that along the wire to Tomcat so it knows the connection is secure). JkMount /* loadbalancer JkOptions +ForwardSSLCertChain Presumably, you have more Jk* directives. Can you post those? - -chris -BEGIN PGP SIGNATURE- Version: GnuPG v1.4.10 (MingW32) Comment: Using GnuPG with Mozilla - http://enigmail.mozdev.org/ iEYEARECAAYFAkyKNL8ACgkQ9CaO5/Lv0PCeogCfS6AMtaI5scFUsw6Yaoxl6ptC YuQAniV/ZgCDcLxItD2cPO/2in+OxpZ8 =xa0R -END PGP SIGNATURE- - To unsubscribe, e-mail: users-unsubscr...@tomcat.apache.org For additional commands, e-mail: users-h...@tomcat.apache.org
Re: Apache AJP to 4 TCs
-BEGIN PGP SIGNED MESSAGE- Hash: SHA1 Andrew, On 9/13/2010 3:09 AM, Andrew Bruno wrote: If there is anything I can improve in the process, as documented, please let me know. Upgrade from Tomcat 4.x to Tomcat 6.x? ;) - -chris -BEGIN PGP SIGNATURE- Version: GnuPG v1.4.10 (MingW32) Comment: Using GnuPG with Mozilla - http://enigmail.mozdev.org/ iEYEARECAAYFAkyOMbkACgkQ9CaO5/Lv0PDpIwCglFp5PAEfMaByWfeZQF1xQD84 gzEAoJ0UDapygQaQHtuypy+09IoGOOTl =pdoT -END PGP SIGNATURE- - To unsubscribe, e-mail: users-unsubscr...@tomcat.apache.org For additional commands, e-mail: users-h...@tomcat.apache.org
Re: Apache AJP to 4 TCs
Thanks, but credit where credit is due. The basis for my configuration was taken from the examples in the source code. There are a lot of notes in the original source code configurations. Even if you don't compile it yourself (I do, since I'm mostly on Linux), the files are worth the read. Download the connector source from http://tomcat.apache.org/download-connectors.cgi, unzip the file, and take a look in the tomcat-connectors-1.2.30-src/conf directory. There are a lot of nice explanations tucked into the example configuration files. . . . . just my two cents. /mde/ - Original Message From: Andrew Bruno andrew.br...@gmail.com To: Tomcat Users List users@tomcat.apache.org Sent: Mon, September 13, 2010 12:09:30 AM Subject: Re: Apache AJP to 4 TCs I did a fresh install, and it all worked. Steps documented @ http://bruniglobal.blogspot.com/2010/09/load-balancing-4-tomcats-with-apache-22.html I then went back to my old install, and noticed that I didnt specific ServerName domain:80 I did that and it all worked.. weird. Anyway, thank you all for your help on this, I really liked Mark's worker.template approach :) and Chris' questions info. If there is anything I can improve in the process, as documented, please let me know. Cheers Andrew - To unsubscribe, e-mail: users-unsubscr...@tomcat.apache.org For additional commands, e-mail: users-h...@tomcat.apache.org
Re: Apache AJP to 4 TCs
Hi Mark Chris,
Thank you for the responses. I have gone about and installed a fresh Apache
(on a seperate box), and have documented my steps in
http://bruniglobal.blogspot.com/2010/09/load-balancing-4-tomcats-with-apache-22.html
So far so good. I can load balance across all 4 tomcats, BUT I HAVE NOT
ENABLED/ADDED SSL yet.
Could the the ssl config be causing me grief?
Listen 172.16.29.148:443
AddType application/x-x509-ca-cert .crt
AddType application/x-pkcs7-crl.crl
SSLPassPhraseDialog builtin
SSLSessionCache
dbm:E:/products/thirdparty/apache-2.2.15-01/logs/ssl_scache
SSLSessionCacheTimeout 300
SSLMutex default
VirtualHost _default_:443
DocumentRoot E:/products/thirdparty/apache-2.2.15-01/htdocs
ServerAdmin supp...@blabla.com
LogLevel error
ErrorLog E:/products/thirdparty/apache-2.2.15-01/logs/ssl_error.log
TransferLog E:/products/thirdparty/apache-2.2.15-01/logs/ssl_access.log
JkMount /* loadbalancer
JkOptions +ForwardSSLCertChain
SSLEngine on
SSLCipherSuite
ALL:!ADH:!EXPORT56:RC4+RSA:+HIGH:+MEDIUM:+LOW:+SSLv2:+EXP:+eNULL
SSLCertificateFile
E:/synetek/products/thirdparty/apache-2.2.15-01/conf/ssl/wildcard-zia.com.crt
SSLCertificateKeyFile
E:/synetek/products/thirdparty/apache-2.2.15-01/conf/ssl/zia.com.key
FilesMatch \.(cgi|shtml|phtml|php)$
SSLOptions +StdEnvVars
/FilesMatch
Directory E:/synetek/products/thirdparty/apache-2.2.15-01/cgi-bin
SSLOptions +StdEnvVars
/Directory
BrowserMatch .*MSIE.* \
nokeepalive ssl-unclean-shutdown \
downgrade-1.0 force-response-1.0
CustomLog
E:/synetek/products/thirdparty/apache-2.2.15-01/logs/ssl_request.log \
%t %h %{SSL_PROTOCOL}x %{SSL_CIPHER}x \%r\ %b
/VirtualHost
Re: Apache AJP to 4 TCs
-BEGIN PGP SIGNED MESSAGE- Hash: SHA1 Andrew, On 9/10/2010 2:52 AM, Andrew Bruno wrote: Thank you for the responses. I have gone about and installed a fresh Apache (on a seperate box), and have documented my steps in http://bruniglobal.blogspot.com/2010/09/load-balancing-4-tomcats-with-apache-22.html So far so good. I can load balance across all 4 tomcats, BUT I HAVE NOT ENABLED/ADDED SSL yet. Could the the ssl config be causing me grief? Almost certainly not. If you are using Apache httpd to terminate SSL, mod_jk doesn't even know about it (except that it will know the SSL state and pass that along the wire to Tomcat so it knows the connection is secure). JkMount /* loadbalancer JkOptions +ForwardSSLCertChain Presumably, you have more Jk* directives. Can you post those? - -chris -BEGIN PGP SIGNATURE- Version: GnuPG v1.4.10 (MingW32) Comment: Using GnuPG with Mozilla - http://enigmail.mozdev.org/ iEYEARECAAYFAkyKNL8ACgkQ9CaO5/Lv0PCeogCfS6AMtaI5scFUsw6Yaoxl6ptC YuQAniV/ZgCDcLxItD2cPO/2in+OxpZ8 =xa0R -END PGP SIGNATURE- - To unsubscribe, e-mail: users-unsubscr...@tomcat.apache.org For additional commands, e-mail: users-h...@tomcat.apache.org
Re: Apache AJP to 4 TCs
Here is the mod_jk log requested [Wed Sep 08 22:57:36 2010] [6912:6336] [debug] jk_util.c (459): Pre-processed log time stamp format is '[%a %b %d %H:%M:%S %Y] ' [Wed Sep 08 22:57:36 2010] [6912:6336] [debug] jk_uri_worker_map.c (770): rule map size is 1 [Wed Sep 08 22:57:36 2010] [6912:6336] [debug] jk_uri_worker_map.c (720): wildchar rule '/*=loadbalancer' source 'JkMount' was added [Wed Sep 08 22:57:36 2010] [6912:6336] [debug] jk_uri_worker_map.c (171): uri map dump after map open: index=0 file='(null)' reject_unsafe=0 reload=60 modified=0 checked=0 [Wed Sep 08 22:57:36 2010] [6912:6336] [debug] jk_uri_worker_map.c (176): generation 0: size=0 nosize=0 capacity=0 [Wed Sep 08 22:57:36 2010] [6912:6336] [debug] jk_uri_worker_map.c (176): generation 1: size=1 nosize=0 capacity=4 [Wed Sep 08 22:57:36 2010] [6912:6336] [debug] jk_uri_worker_map.c (186): NEXT (1) map #0: uri=/* worker=loadbalancer context=/* source=JkMount type=Wildchar len=2 [Wed Sep 08 22:57:36 2010] [6912:6336] [debug] jk_util.c (459): Pre-processed log time stamp format is '[%a %b %d %H:%M:%S %Y] ' [Wed Sep 08 22:57:36 2010] [6912:6336] [debug] jk_uri_worker_map.c (770): rule map size is 1 [Wed Sep 08 22:57:36 2010] [6912:6336] [debug] jk_uri_worker_map.c (720): wildchar rule '/*=loadbalancer' source 'JkMount' was added [Wed Sep 08 22:57:36 2010] [6912:6336] [debug] jk_uri_worker_map.c (171): uri map dump after map open: index=0 file='(null)' reject_unsafe=0 reload=60 modified=0 checked=0 [Wed Sep 08 22:57:36 2010] [6912:6336] [debug] jk_uri_worker_map.c (176): generation 0: size=0 nosize=0 capacity=0 [Wed Sep 08 22:57:36 2010] [6912:6336] [debug] jk_uri_worker_map.c (176): generation 1: size=1 nosize=0 capacity=4 [Wed Sep 08 22:57:36 2010] [6912:6336] [debug] jk_uri_worker_map.c (186): NEXT (1) map #0: uri=/* worker=loadbalancer context=/* source=JkMount type=Wildchar len=2 [Wed Sep 08 22:57:36 2010] [6912:6336] [debug] mod_jk.c (3116): Not using locking. [Wed Sep 08 22:57:36 2010] [6912:6336] [debug] mod_jk.c (3128): Setting default connection pool max size to 64 [Wed Sep 08 22:57:36 2010] [6912:6336] [debug] jk_map.c (491): Adding property 'worker.list' with value '1,2,3,loadbalancer' to map. [Wed Sep 08 22:57:36 2010] [6912:6336] [debug] jk_map.c (491): Adding property 'worker.1.host' with value '176.16.29.148' to map. [Wed Sep 08 22:57:36 2010] [6912:6336] [debug] jk_map.c (491): Adding property 'worker.1.port' with value '8019' to map. [Wed Sep 08 22:57:36 2010] [6912:6336] [debug] jk_map.c (491): Adding property 'worker.1.type' with value 'ajp13' to map. [Wed Sep 08 22:57:36 2010] [6912:6336] [debug] jk_map.c (491): Adding property 'worker.1.lbfactor' with value '4' to map. [Wed Sep 08 22:57:36 2010] [6912:6336] [debug] jk_map.c (491): Adding property 'worker.2.host' with value '176.16.29.148' to map. [Wed Sep 08 22:57:36 2010] [6912:6336] [debug] jk_map.c (491): Adding property 'worker.2.port' with value '8029' to map. [Wed Sep 08 22:57:36 2010] [6912:6336] [debug] jk_map.c (491): Adding property 'worker.2.type' with value 'ajp13' to map. [Wed Sep 08 22:57:36 2010] [6912:6336] [debug] jk_map.c (491): Adding property 'worker.2.lbfactor' with value '5' to map. [Wed Sep 08 22:57:36 2010] [6912:6336] [debug] jk_map.c (491): Adding property 'worker.3.host' with value '176.16.29.158' to map. [Wed Sep 08 22:57:36 2010] [6912:6336] [debug] jk_map.c (491): Adding property 'worker.3.port' with value '8039' to map. [Wed Sep 08 22:57:36 2010] [6912:6336] [debug] jk_map.c (491): Adding property 'worker.3.type' with value 'ajp13' to map. [Wed Sep 08 22:57:36 2010] [6912:6336] [debug] jk_map.c (491): Adding property 'worker.3.lbfactor' with value '1' to map. [Wed Sep 08 22:57:36 2010] [6912:6336] [debug] jk_map.c (491): Adding property 'worker.4.host' with value '176.16.29.158' to map. [Wed Sep 08 22:57:36 2010] [6912:6336] [debug] jk_map.c (491): Adding property 'worker.4.port' with value '8049' to map. [Wed Sep 08 22:57:36 2010] [6912:6336] [debug] jk_map.c (491): Adding property 'worker.4.type' with value 'ajp13' to map. [Wed Sep 08 22:57:36 2010] [6912:6336] [debug] jk_map.c (491): Adding property 'worker.4.lbfactor' with value '2' to map. [Wed Sep 08 22:57:36 2010] [6912:6336] [debug] jk_map.c (491): Adding property 'worker.loadbalancer.type' with value 'lb' to map. [Wed Sep 08 22:57:36 2010] [6912:6336] [debug] jk_map.c (491): Adding property 'worker.loadbalancer.balance_workers' with value '1,2,3' to map. [Wed Sep 08 22:57:36 2010] [6912:6336] [debug] jk_map.c (774): Checking for references with prefix worker. with wildcard (recursion 1) [Wed Sep 08 22:57:36 2010] [6912:6336] [debug] jk_shm.c (125): worker loadbalancer of type lb has 3 members [Wed Sep 08 22:57:36 2010] [6912:6336] [debug] jk_shm.c (132): shared memory will contain 3 ajp workers of size 320 and 1 lb workers of size 320 with 3 members of size 384+320 [Wed Sep 08 22:57:36 2010] [6912:6336] [debug] jk_shm.c (244): Resetting the shared memory for child 4 [Wed Sep 08
Re: Apache AJP to 4 TCs
-BEGIN PGP SIGNED MESSAGE-
Hash: SHA1
Andrew,
On 9/9/2010 2:00 AM, Andrew Bruno wrote:
[Wed Sep 08 22:57:36 2010] [6912:6336] [debug] jk_worker.c (242):
creating worker loadbalancer
[Wed Sep 08 22:57:36 2010] [6912:6336] [debug] jk_worker.c (146):
about to create instance loadbalancer of lb
[Wed Sep 08 22:57:36 2010] [6912:6336] [debug] jk_worker.c (159):
about to validate and init loadbalancer
[Wed Sep 08 22:57:36 2010] [6912:6336] [error] jk_lb_worker.c (1536):
allocating lb sub worker record from shared memory
[Wed Sep 08 22:57:36 2010] [6912:6336] [error] jk_worker.c (163):
validate failed for loadbalancer
[Wed Sep 08 22:57:36 2010] [6912:6336] [error] jk_worker.c (262):
failed to create worker loadbalancer
D'oh. In your original post, did you include your entire
workers.properties file? Also, can you post all your Jk* directives you
have active in your httpd configuration?
The code that performs validation of the worker is found in
native/common/jk_lb_worker.c:
static int JK_METHOD validate(jk_worker_t *pThis,
jk_map_t *props,
jk_worker_env_t *we, jk_logger_t *l)
[Wed Sep 08 22:57:36 2010] [6912:6336] [error] jk_lb_worker.c (1536):
allocating lb sub worker record from shared memory
This occurs on line 1536 (in mod_jk 1.2.30), in this neighborhood:
1533 for (i = 0; i num_of_workers; i++) {
1534 p-lb_workers[i].s =
jk_shm_alloc_lb_sub_worker(p-p);
1535 if (p-lb_workers[i].s == NULL) {
1536 jk_log(l, JK_LOG_ERROR,
1537allocating lb sub worker record from
shared memory);
1538 JK_TRACE_EXIT(l);
1539 return JK_FALSE;
1540 }
1541 }
This looks like it might be a shared memory allocation error. Once you
get into the jk_shm and jk_pool code, there's no debug logging of any
kind :(
You might have to hack-in some debug logging if Rainer or Mladen can't
comment further. Are you comfortable compiling your own mod_jk? It looks
like compiling with DEBUG #defined to something will at least get you
jk_dump_pool calls when shared memory fails to be allocated.
- -chris
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j8cAoKEwnNKI5Rs8RsYb6yISFiuY5P9L
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Re: Apache AJP to 4 TCs
=org.apache.catalina.tribes.group.interceptors.MessageDispatch15Interceptor/
Interceptor
className=org.apache.catalina.tribes.group.interceptors.ThroughputInterceptor/
/Channel
Valve className=org.apache.catalina.ha.tcp.ReplicationValve
filter=.*\.gif;.*\.js;.*\.jpg;.*\.png;.*\.htm;.*\.html;.*\.css;.*\.txt;/
Deployer className=org.apache.catalina.ha.deploy.FarmWarDeployer
tempDir=${catalina.base}/temp-dir/
deployDir=${catalina.base}/webapps/
watchDir=${catalina.base}/watch-dir/
processDeployFrequency=4
watchEnabled=true/
ClusterListener
className=org.apache.catalina.ha.session.ClusterSessionListener/
/Cluster
Valve className=org.apache.catalina.valves.AccessLogValve
directory=logs
prefix=localhost_access_log. suffix=.txt pattern=common
resolveHosts=false/
/Host
/Engine
/Service
/Server
It's all pretty generic. This particular instance happens to be the one that
provides the other three with the web application, so I have
watcheEnabled=true for the Deployer. In general here's what you have to watch
out for when running all of this on one machine.
1. Change ports for everything
shutdown port
HTTP port (if used - I use it for management)
HTTPS port (if used)
AJP port
Receiver port in cluster (not strictly necessary since Tomcat will figure
this out)
2. Match jvmroute with names used in workers.properties
3. Match the AJP ports between server.xml and workers.properties
I run this using $CATALINA_HOME and $CATALINA_BASE (%CATALINA_HOME% and
%CATALINA_BASE% on Windows) plus cluster-startup.sh and a cluster-shutdown.sh
scripts.
I haven't tried this on Windows yet, so the issue may be with shared memory
allocation.
Take a close look at your workers.properties files and compare it to the one
above (which is based on the stock one provided with the tomcat-connectors
source package).
Hope this helps.
. . . . just my two cents.
/mde/
- Original Message
From: Christopher Schultz ch...@christopherschultz.net
To: Tomcat Users List users@tomcat.apache.org
Sent: Thu, September 9, 2010 11:15:14 AM
Subject: Re: Apache AJP to 4 TCs
-BEGIN PGP SIGNED MESSAGE-
Hash: SHA1
Andrew,
On 9/9/2010 2:00 AM, Andrew Bruno wrote:
[Wed Sep 08 22:57:36 2010] [6912:6336] [debug] jk_worker.c (242):
creating worker loadbalancer
[Wed Sep 08 22:57:36 2010] [6912:6336] [debug] jk_worker.c (146):
about to create instance loadbalancer of lb
[Wed Sep 08 22:57:36 2010] [6912:6336] [debug] jk_worker.c (159):
about to validate and init loadbalancer
[Wed Sep 08 22:57:36 2010] [6912:6336] [error] jk_lb_worker.c (1536):
allocating lb sub worker record from shared memory
[Wed Sep 08 22:57:36 2010] [6912:6336] [error] jk_worker.c (163):
validate failed for loadbalancer
[Wed Sep 08 22:57:36 2010] [6912:6336] [error] jk_worker.c (262):
failed to create worker loadbalancer
D'oh. In your original post, did you include your entire
workers.properties file? Also, can you post all your Jk* directives you
have active in your httpd configuration?
The code that performs validation of the worker is found in
native/common/jk_lb_worker.c:
static int JK_METHOD validate(jk_worker_t *pThis,
jk_map_t *props,
jk_worker_env_t *we, jk_logger_t *l)
[Wed Sep 08 22:57:36 2010] [6912:6336] [error] jk_lb_worker.c (1536):
allocating lb sub worker record from shared memory
This occurs on line 1536 (in mod_jk 1.2.30), in this neighborhood:
1533 for (i = 0; i num_of_workers; i++) {
1534 p-lb_workers[i].s =
jk_shm_alloc_lb_sub_worker(p-p);
1535 if (p-lb_workers[i].s == NULL) {
1536 jk_log(l, JK_LOG_ERROR,
1537allocating lb sub worker record from
shared
memory);
1538 JK_TRACE_EXIT(l);
1539 return JK_FALSE;
1540 }
1541 }
This looks like it might be a shared memory allocation error. Once you
get into the jk_shm and jk_pool code, there's no debug logging of any
kind :(
You might have to hack-in some debug logging if Rainer or Mladen can't
comment further. Are you comfortable compiling your own mod_jk? It looks
like compiling with DEBUG #defined to something will at least get you
jk_dump_pool calls when shared memory fails to be allocated.
- -chris
-
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Re: Apache AJP to 4 TCs
With 2 workers, the system has been working well for months. I now wanted to add an extra two workers, i.e. a total of 4 tomcats, and load balance across all 4. Is this possible? With respect to the worker names, a number works well. I have set the jvmRoute to be numbers too, and my app directs users to the respective worker using the MITM jsession followed by a dot followed by worker name discussed in forum a few months ago. i.e. https://app.somedomain.com/login.do;jsessionid=w.2 - forces it to use tomcat jvmRoute=2 e.g. Service name=Catalina Connector port=8019 protocol=AJP/1.3 redirectPort=443 address=206.188.29.148 / !-- You should set jvmRoute to support load-balancing redirect via AJP -- Engine name=Catalina defaultHost=localhost jvmRoute=1 Host name=localhost unpackWARs=false autoDeploy=false xmlValidation=false xmlNamespaceAware=false Also, what do mean by This can't work, since the loadbalancer has no idea what you mean by worker 3 and 4 .. worker.loadbalancer.balance_workers=1,2,3,4 1,2 works. 2,4 work, but if I add one more, e.g.1,2,4 apache fails to start. I defined all 4 workers. Does anyone have any hints or links, samples on how I can get Apache talking to more than 2 tomcat workers? It is possible, right? Regards Andrew On Tue, Sep 7, 2010 at 6:15 PM, Rainer Jung rainer.j...@kippdata.de wrote: See remarks inline. On 07.09.2010 10:01, Andrew Bruno wrote: Fair enough Pid, here it is: Windows 2008 R2 64 Bit Java(TM) SE Runtime Environment (build 1.6.0_17-b04) / Java HotSpot(TM) 64-Bit Server VM (build 14.3-b01, mixed mode) Tomcat 6.0.28 Apache 2.2.15 mod_jk-1.2.30-httpd-2.2.3.so AB On Tue, Sep 7, 2010 at 5:52 PM, Pidp...@pidster.com wrote: On 07/09/2010 08:44, Andrew Bruno wrote: Hello, I am trying to add two extra workers, totaling 4 workers, but Apache fails to restart. This worker file works: # List the workers name worker.list=1,2,loadbalancer If you only want to use workers 1 and 2 via the loadbalancer, you can remove them from worker.list and only keep the loadbalancer there. # # First worker # worker.1.host=206.xx.xxx.xxx worker.1.port=8019 worker.1.type=ajp13 worker.1.lbfactor=4 # # Second worker # worker.2.host=206.xx.xxx.xxx worker.2.port=8029 worker.2.type=ajp13 worker.2.lbfactor=5 Strange lbfactors ... # -- # Load Balancer worker # -- worker.loadbalancer.type=lb worker.loadbalancer.balance_workers=1,2,3,4 This can't work, since the loadbalancer has no idea what you mean by worker 3 and 4 ... BUT WHEN I change to: worker.list=1,2,3,4,loadbalancer Same comment as above concerning worker.list worker.1.host=206.xx..xx.xx worker.1.port=8019 worker.1.type=ajp13 worker.1.lbfactor=4 worker.2.host=206.xx..xx.xx worker.2.port=8029 worker.2.type=ajp13 worker.2.lbfactor=5 worker.3.host=206.xx..xx.xx worker.3.port=8039 worker.3.type=ajp13 worker.3.lbfactor=1 worker.4.host=206.xx.xx.xx worker.4.port=8049 worker.4.type=ajp13 worker.4.lbfactor=2 And there are connectors in the Tomcat configuration listening on those ports 8019, ..., 8049, right? worker.loadbalancer.type=lb worker.loadbalancer.balance_workers=1,2,3,4 I get these kind of errors, and Apache fails to start [Tue Sep 07 00:36:37 2010] [18324:16360] [error] jk_lb_worker.c (1536): allocating lb sub worker record from shared memory There's a problem creating the workers when trying to access shared memory. Could you please show us your complete mod_jk configuration, especially the Jk* directives for Apache? Do you have an JkShmSize set? Are there any info, warn or error messages during startup and before this failure? [Tue Sep 07 00:36:37 2010] [18324:16360] [error] jk_worker.c (163): validate failed for loadbalancer [Tue Sep 07 00:36:37 2010] [18324:16360] [error] jk_worker.c (262): failed to create worker loadbalancer [Tue Sep 07 00:38:03 2010] [16864:7456] [error] jk_ajp_common.c (2929): allocating ajp worker record from shared memory [Tue Sep 07 00:38:03 2010] [16864:7456] [error] jk_worker.c (151): factory for ajp13 failed for 2 [Tue Sep 07 00:38:03 2010] [16864:7456] [error] jk_lb_worker.c (1603): Failed creating worker 2 [Tue Sep 07 00:38:03 2010] [16864:7456] [error] jk_lb_worker.c (1651): NULL parameters [Tue Sep 07 00:38:03 2010] [16864:7456] [error] jk_worker.c (163): validate failed for loadbalancer [Tue Sep 07 00:38:03 2010] [16864:7456] [error] jk_worker.c (262): failed to create worker loadbalancer [Tue Sep 07 00:38:39 2010] [7272:16728] [error] jk_ajp_common.c (2929): allocating ajp worker record from shared memory [Tue Sep 07 00:38:39 2010] [7272:16728] [error] jk_worker.c (151): factory for ajp13 failed for 1 [Tue Sep 07 00:38:39 2010] [7272:16728] [error] jk_lb_worker.c (1603):
Re: Apache AJP to 4 TCs
And here is my JK info JkWorkersFile E:/products/thirdparty/apache-2.2.15-01/conf/workers.properties JkShmFile E:/products/thirdparty/apache-2.2.15-01/logs/mod_jk.shm JkLogFile E:/products/thirdparty/apache-2.2.15-01/logs/mod_jk.log JkLogLevelerror JkLogStampFormat [%a %b %d %H:%M:%S %Y] JkMount /* loadbalancer AB On Wed, Sep 8, 2010 at 11:06 PM, Andrew Bruno andrew.br...@gmail.com wrote: With 2 workers, the system has been working well for months. I now wanted to add an extra two workers, i.e. a total of 4 tomcats, and load balance across all 4. Is this possible? With respect to the worker names, a number works well. I have set the jvmRoute to be numbers too, and my app directs users to the respective worker using the MITM jsession followed by a dot followed by worker name discussed in forum a few months ago. i.e. https://app.somedomain.com/login.do;jsessionid=w.2 - forces it to use tomcat jvmRoute=2 e.g. Service name=Catalina Connector port=8019 protocol=AJP/1.3 redirectPort=443 address=206.188.29.148 / !-- You should set jvmRoute to support load-balancing redirect via AJP -- Engine name=Catalina defaultHost=localhost jvmRoute=1 Host name=localhost unpackWARs=false autoDeploy=false xmlValidation=false xmlNamespaceAware=false Also, what do mean by This can't work, since the loadbalancer has no idea what you mean by worker 3 and 4 .. worker.loadbalancer.balance_workers=1,2,3,4 1,2 works. 2,4 work, but if I add one more, e.g.1,2,4 apache fails to start. I defined all 4 workers. Does anyone have any hints or links, samples on how I can get Apache talking to more than 2 tomcat workers? It is possible, right? Regards Andrew On Tue, Sep 7, 2010 at 6:15 PM, Rainer Jung rainer.j...@kippdata.de wrote: See remarks inline. On 07.09.2010 10:01, Andrew Bruno wrote: Fair enough Pid, here it is: Windows 2008 R2 64 Bit Java(TM) SE Runtime Environment (build 1.6.0_17-b04) / Java HotSpot(TM) 64-Bit Server VM (build 14.3-b01, mixed mode) Tomcat 6.0.28 Apache 2.2.15 mod_jk-1.2.30-httpd-2.2.3.so AB On Tue, Sep 7, 2010 at 5:52 PM, Pidp...@pidster.com wrote: On 07/09/2010 08:44, Andrew Bruno wrote: Hello, I am trying to add two extra workers, totaling 4 workers, but Apache fails to restart. This worker file works: # List the workers name worker.list=1,2,loadbalancer If you only want to use workers 1 and 2 via the loadbalancer, you can remove them from worker.list and only keep the loadbalancer there. # # First worker # worker.1.host=206.xx.xxx.xxx worker.1.port=8019 worker.1.type=ajp13 worker.1.lbfactor=4 # # Second worker # worker.2.host=206.xx.xxx.xxx worker.2.port=8029 worker.2.type=ajp13 worker.2.lbfactor=5 Strange lbfactors ... # -- # Load Balancer worker # -- worker.loadbalancer.type=lb worker.loadbalancer.balance_workers=1,2,3,4 This can't work, since the loadbalancer has no idea what you mean by worker 3 and 4 ... BUT WHEN I change to: worker.list=1,2,3,4,loadbalancer Same comment as above concerning worker.list worker.1.host=206.xx..xx.xx worker.1.port=8019 worker.1.type=ajp13 worker.1.lbfactor=4 worker.2.host=206.xx..xx.xx worker.2.port=8029 worker.2.type=ajp13 worker.2.lbfactor=5 worker.3.host=206.xx..xx.xx worker.3.port=8039 worker.3.type=ajp13 worker.3.lbfactor=1 worker.4.host=206.xx.xx.xx worker.4.port=8049 worker.4.type=ajp13 worker.4.lbfactor=2 And there are connectors in the Tomcat configuration listening on those ports 8019, ..., 8049, right? worker.loadbalancer.type=lb worker.loadbalancer.balance_workers=1,2,3,4 I get these kind of errors, and Apache fails to start [Tue Sep 07 00:36:37 2010] [18324:16360] [error] jk_lb_worker.c (1536): allocating lb sub worker record from shared memory There's a problem creating the workers when trying to access shared memory. Could you please show us your complete mod_jk configuration, especially the Jk* directives for Apache? Do you have an JkShmSize set? Are there any info, warn or error messages during startup and before this failure? [Tue Sep 07 00:36:37 2010] [18324:16360] [error] jk_worker.c (163): validate failed for loadbalancer [Tue Sep 07 00:36:37 2010] [18324:16360] [error] jk_worker.c (262): failed to create worker loadbalancer [Tue Sep 07 00:38:03 2010] [16864:7456] [error] jk_ajp_common.c (2929): allocating ajp worker record from shared memory [Tue Sep 07 00:38:03 2010] [16864:7456] [error] jk_worker.c (151): factory for ajp13 failed for 2 [Tue Sep 07 00:38:03 2010] [16864:7456] [error] jk_lb_worker.c (1603): Failed creating worker 2 [Tue Sep 07 00:38:03 2010] [16864:7456] [error] jk_lb_worker.c (1651): NULL parameters [Tue Sep 07 00:38:03 2010] [16864:7456] [error] jk_worker.c (163): validate failed for
Re: Apache AJP to 4 TCs
-BEGIN PGP SIGNED MESSAGE- Hash: SHA1 Andrew, On 9/8/2010 9:10 AM, Andrew Bruno wrote: And here is my JK info Thanks. JkWorkersFile E:/products/thirdparty/apache-2.2.15-01/conf/workers.properties JkShmFile E:/products/thirdparty/apache-2.2.15-01/logs/mod_jk.shm JkLogFile E:/products/thirdparty/apache-2.2.15-01/logs/mod_jk.log JkLogLevelerror Try setting the above JkLogLevel to debug and sending the new (complete) mod_jk.log file that covers httpd startup. JkLogStampFormat [%a %b %d %H:%M:%S %Y] JkMount /* loadbalancer Since you're using httpd for load balancing, you might consider using it to serve static content rather than doing a (potentially) needless proxy operation for those files. Just a thought. I now wanted to add an extra two workers, i.e. a total of 4 tomcats, and load balance across all 4. Is this possible? Yes. With respect to the worker names, a number works well. I have set the jvmRoute to be numbers too, and my app directs users to the respective worker using the MITM jsession followed by a dot followed by worker name discussed in forum a few months ago. i.e. https://app.somedomain.com/login.do;jsessionid=w.2 - forces it to use tomcat jvmRoute=2 Good. Please send an updated log file, and we'll take a look. Thanks, - -chris -BEGIN PGP SIGNATURE- Version: GnuPG v1.4.10 (MingW32) Comment: Using GnuPG with Mozilla - http://enigmail.mozdev.org/ iEYEARECAAYFAkyHlX4ACgkQ9CaO5/Lv0PCQZwCcClTydhrc7vwozVrsrYfd0D9d 5u4AoKCOYPpaX0CoCxEI4vHK3SgEh/n9 =9R0Z -END PGP SIGNATURE- - To unsubscribe, e-mail: users-unsubscr...@tomcat.apache.org For additional commands, e-mail: users-h...@tomcat.apache.org
Apache AJP to 4 TCs
Hello, I am trying to add two extra workers, totaling 4 workers, but Apache fails to restart. This worker file works: # List the workers name worker.list=1,2,loadbalancer # # First worker # worker.1.host=206.xx.xxx.xxx worker.1.port=8019 worker.1.type=ajp13 worker.1.lbfactor=4 # # Second worker # worker.2.host=206.xx.xxx.xxx worker.2.port=8029 worker.2.type=ajp13 worker.2.lbfactor=5 # -- # Load Balancer worker # -- worker.loadbalancer.type=lb worker.loadbalancer.balance_workers=1,2,3,4 BUT WHEN I change to: worker.list=1,2,3,4,loadbalancer worker.1.host=206.xx..xx.xx worker.1.port=8019 worker.1.type=ajp13 worker.1.lbfactor=4 worker.2.host=206.xx..xx.xx worker.2.port=8029 worker.2.type=ajp13 worker.2.lbfactor=5 worker.3.host=206.xx..xx.xx worker.3.port=8039 worker.3.type=ajp13 worker.3.lbfactor=1 worker.4.host=206.xx.xx.xx worker.4.port=8049 worker.4.type=ajp13 worker.4.lbfactor=2 worker.loadbalancer.type=lb worker.loadbalancer.balance_workers=1,2,3,4 I get these kind of errors, and Apache fails to start [Tue Sep 07 00:36:37 2010] [18324:16360] [error] jk_lb_worker.c (1536): allocating lb sub worker record from shared memory [Tue Sep 07 00:36:37 2010] [18324:16360] [error] jk_worker.c (163): validate failed for loadbalancer [Tue Sep 07 00:36:37 2010] [18324:16360] [error] jk_worker.c (262): failed to create worker loadbalancer [Tue Sep 07 00:38:03 2010] [16864:7456] [error] jk_ajp_common.c (2929): allocating ajp worker record from shared memory [Tue Sep 07 00:38:03 2010] [16864:7456] [error] jk_worker.c (151): factory for ajp13 failed for 2 [Tue Sep 07 00:38:03 2010] [16864:7456] [error] jk_lb_worker.c (1603): Failed creating worker 2 [Tue Sep 07 00:38:03 2010] [16864:7456] [error] jk_lb_worker.c (1651): NULL parameters [Tue Sep 07 00:38:03 2010] [16864:7456] [error] jk_worker.c (163): validate failed for loadbalancer [Tue Sep 07 00:38:03 2010] [16864:7456] [error] jk_worker.c (262): failed to create worker loadbalancer [Tue Sep 07 00:38:39 2010] [7272:16728] [error] jk_ajp_common.c (2929): allocating ajp worker record from shared memory [Tue Sep 07 00:38:39 2010] [7272:16728] [error] jk_worker.c (151): factory for ajp13 failed for 1 [Tue Sep 07 00:38:39 2010] [7272:16728] [error] jk_lb_worker.c (1603): Failed creating worker 1 [Tue Sep 07 00:38:39 2010] [7272:16728] [error] jk_lb_worker.c (1651): NULL parameters [Tue Sep 07 00:38:39 2010] [7272:16728] [error] jk_worker.c (163): validate failed for loadbalancer [Tue Sep 07 00:38:39 2010] [7272:16728] [error] jk_worker.c (262): failed to create worker loadbalancer How do I allow Apache to communicate to 4 tomcats? Thanks Andrew - To unsubscribe, e-mail: users-unsubscr...@tomcat.apache.org For additional commands, e-mail: users-h...@tomcat.apache.org
Re: Apache AJP to 4 TCs
On 07/09/2010 08:44, Andrew Bruno wrote: Hello, I am trying to add two extra workers, totaling 4 workers, but Apache fails to restart. This worker file works: # List the workers name worker.list=1,2,loadbalancer # # First worker # worker.1.host=206.xx.xxx.xxx worker.1.port=8019 worker.1.type=ajp13 worker.1.lbfactor=4 # # Second worker # worker.2.host=206.xx.xxx.xxx worker.2.port=8029 worker.2.type=ajp13 worker.2.lbfactor=5 # -- # Load Balancer worker # -- worker.loadbalancer.type=lb worker.loadbalancer.balance_workers=1,2,3,4 BUT WHEN I change to: worker.list=1,2,3,4,loadbalancer worker.1.host=206.xx..xx.xx worker.1.port=8019 worker.1.type=ajp13 worker.1.lbfactor=4 worker.2.host=206.xx..xx.xx worker.2.port=8029 worker.2.type=ajp13 worker.2.lbfactor=5 worker.3.host=206.xx..xx.xx worker.3.port=8039 worker.3.type=ajp13 worker.3.lbfactor=1 worker.4.host=206.xx.xx.xx worker.4.port=8049 worker.4.type=ajp13 worker.4.lbfactor=2 worker.loadbalancer.type=lb worker.loadbalancer.balance_workers=1,2,3,4 I get these kind of errors, and Apache fails to start [Tue Sep 07 00:36:37 2010] [18324:16360] [error] jk_lb_worker.c (1536): allocating lb sub worker record from shared memory [Tue Sep 07 00:36:37 2010] [18324:16360] [error] jk_worker.c (163): validate failed for loadbalancer [Tue Sep 07 00:36:37 2010] [18324:16360] [error] jk_worker.c (262): failed to create worker loadbalancer [Tue Sep 07 00:38:03 2010] [16864:7456] [error] jk_ajp_common.c (2929): allocating ajp worker record from shared memory [Tue Sep 07 00:38:03 2010] [16864:7456] [error] jk_worker.c (151): factory for ajp13 failed for 2 [Tue Sep 07 00:38:03 2010] [16864:7456] [error] jk_lb_worker.c (1603): Failed creating worker 2 [Tue Sep 07 00:38:03 2010] [16864:7456] [error] jk_lb_worker.c (1651): NULL parameters [Tue Sep 07 00:38:03 2010] [16864:7456] [error] jk_worker.c (163): validate failed for loadbalancer [Tue Sep 07 00:38:03 2010] [16864:7456] [error] jk_worker.c (262): failed to create worker loadbalancer [Tue Sep 07 00:38:39 2010] [7272:16728] [error] jk_ajp_common.c (2929): allocating ajp worker record from shared memory [Tue Sep 07 00:38:39 2010] [7272:16728] [error] jk_worker.c (151): factory for ajp13 failed for 1 [Tue Sep 07 00:38:39 2010] [7272:16728] [error] jk_lb_worker.c (1603): Failed creating worker 1 [Tue Sep 07 00:38:39 2010] [7272:16728] [error] jk_lb_worker.c (1651): NULL parameters [Tue Sep 07 00:38:39 2010] [7272:16728] [error] jk_worker.c (163): validate failed for loadbalancer [Tue Sep 07 00:38:39 2010] [7272:16728] [error] jk_worker.c (262): failed to create worker loadbalancer How do I allow Apache to communicate to 4 tomcats? Exact HTTPD, Tomcat, mod_jk versions? p 0x62590808.asc Description: application/pgp-keys signature.asc Description: OpenPGP digital signature
Re: Apache AJP to 4 TCs
Fair enough Pid, here it is: Windows 2008 R2 64 Bit Java(TM) SE Runtime Environment (build 1.6.0_17-b04) / Java HotSpot(TM) 64-Bit Server VM (build 14.3-b01, mixed mode) Tomcat 6.0.28 Apache 2.2.15 mod_jk-1.2.30-httpd-2.2.3.so AB On Tue, Sep 7, 2010 at 5:52 PM, Pid p...@pidster.com wrote: On 07/09/2010 08:44, Andrew Bruno wrote: Hello, I am trying to add two extra workers, totaling 4 workers, but Apache fails to restart. This worker file works: # List the workers name worker.list=1,2,loadbalancer # # First worker # worker.1.host=206.xx.xxx.xxx worker.1.port=8019 worker.1.type=ajp13 worker.1.lbfactor=4 # # Second worker # worker.2.host=206.xx.xxx.xxx worker.2.port=8029 worker.2.type=ajp13 worker.2.lbfactor=5 # -- # Load Balancer worker # -- worker.loadbalancer.type=lb worker.loadbalancer.balance_workers=1,2,3,4 BUT WHEN I change to: worker.list=1,2,3,4,loadbalancer worker.1.host=206.xx..xx.xx worker.1.port=8019 worker.1.type=ajp13 worker.1.lbfactor=4 worker.2.host=206.xx..xx.xx worker.2.port=8029 worker.2.type=ajp13 worker.2.lbfactor=5 worker.3.host=206.xx..xx.xx worker.3.port=8039 worker.3.type=ajp13 worker.3.lbfactor=1 worker.4.host=206.xx.xx.xx worker.4.port=8049 worker.4.type=ajp13 worker.4.lbfactor=2 worker.loadbalancer.type=lb worker.loadbalancer.balance_workers=1,2,3,4 I get these kind of errors, and Apache fails to start [Tue Sep 07 00:36:37 2010] [18324:16360] [error] jk_lb_worker.c (1536): allocating lb sub worker record from shared memory [Tue Sep 07 00:36:37 2010] [18324:16360] [error] jk_worker.c (163): validate failed for loadbalancer [Tue Sep 07 00:36:37 2010] [18324:16360] [error] jk_worker.c (262): failed to create worker loadbalancer [Tue Sep 07 00:38:03 2010] [16864:7456] [error] jk_ajp_common.c (2929): allocating ajp worker record from shared memory [Tue Sep 07 00:38:03 2010] [16864:7456] [error] jk_worker.c (151): factory for ajp13 failed for 2 [Tue Sep 07 00:38:03 2010] [16864:7456] [error] jk_lb_worker.c (1603): Failed creating worker 2 [Tue Sep 07 00:38:03 2010] [16864:7456] [error] jk_lb_worker.c (1651): NULL parameters [Tue Sep 07 00:38:03 2010] [16864:7456] [error] jk_worker.c (163): validate failed for loadbalancer [Tue Sep 07 00:38:03 2010] [16864:7456] [error] jk_worker.c (262): failed to create worker loadbalancer [Tue Sep 07 00:38:39 2010] [7272:16728] [error] jk_ajp_common.c (2929): allocating ajp worker record from shared memory [Tue Sep 07 00:38:39 2010] [7272:16728] [error] jk_worker.c (151): factory for ajp13 failed for 1 [Tue Sep 07 00:38:39 2010] [7272:16728] [error] jk_lb_worker.c (1603): Failed creating worker 1 [Tue Sep 07 00:38:39 2010] [7272:16728] [error] jk_lb_worker.c (1651): NULL parameters [Tue Sep 07 00:38:39 2010] [7272:16728] [error] jk_worker.c (163): validate failed for loadbalancer [Tue Sep 07 00:38:39 2010] [7272:16728] [error] jk_worker.c (262): failed to create worker loadbalancer How do I allow Apache to communicate to 4 tomcats? Exact HTTPD, Tomcat, mod_jk versions? p - To unsubscribe, e-mail: users-unsubscr...@tomcat.apache.org For additional commands, e-mail: users-h...@tomcat.apache.org
Re: Apache AJP to 4 TCs
On 07/09/2010 09:01, Andrew Bruno wrote: Fair enough Pid, here it is: Windows 2008 R2 64 Bit Java(TM) SE Runtime Environment (build 1.6.0_17-b04) / Java HotSpot(TM) 64-Bit Server VM (build 14.3-b01, mixed mode) Tomcat 6.0.28 Apache 2.2.15 mod_jk-1.2.30-httpd-2.2.3.so So the most recent version of mod_jk has some sample config files in the distribution which, notably, use the 'template' method. You might consider reviewing those and starting over. Also, I'm not sure whether you can use a single number for a worker name - but I'd consider it more sensible to use a string based, longer name to avoid confusion when configuring the jvmRoute attribute in server.xml. p On Tue, Sep 7, 2010 at 5:52 PM, Pid p...@pidster.com wrote: On 07/09/2010 08:44, Andrew Bruno wrote: Hello, I am trying to add two extra workers, totaling 4 workers, but Apache fails to restart. This worker file works: # List the workers name worker.list=1,2,loadbalancer # # First worker # worker.1.host=206.xx.xxx.xxx worker.1.port=8019 worker.1.type=ajp13 worker.1.lbfactor=4 # # Second worker # worker.2.host=206.xx.xxx.xxx worker.2.port=8029 worker.2.type=ajp13 worker.2.lbfactor=5 # -- # Load Balancer worker # -- worker.loadbalancer.type=lb worker.loadbalancer.balance_workers=1,2,3,4 BUT WHEN I change to: worker.list=1,2,3,4,loadbalancer worker.1.host=206.xx..xx.xx worker.1.port=8019 worker.1.type=ajp13 worker.1.lbfactor=4 worker.2.host=206.xx..xx.xx worker.2.port=8029 worker.2.type=ajp13 worker.2.lbfactor=5 worker.3.host=206.xx..xx.xx worker.3.port=8039 worker.3.type=ajp13 worker.3.lbfactor=1 worker.4.host=206.xx.xx.xx worker.4.port=8049 worker.4.type=ajp13 worker.4.lbfactor=2 worker.loadbalancer.type=lb worker.loadbalancer.balance_workers=1,2,3,4 I get these kind of errors, and Apache fails to start [Tue Sep 07 00:36:37 2010] [18324:16360] [error] jk_lb_worker.c (1536): allocating lb sub worker record from shared memory [Tue Sep 07 00:36:37 2010] [18324:16360] [error] jk_worker.c (163): validate failed for loadbalancer [Tue Sep 07 00:36:37 2010] [18324:16360] [error] jk_worker.c (262): failed to create worker loadbalancer [Tue Sep 07 00:38:03 2010] [16864:7456] [error] jk_ajp_common.c (2929): allocating ajp worker record from shared memory [Tue Sep 07 00:38:03 2010] [16864:7456] [error] jk_worker.c (151): factory for ajp13 failed for 2 [Tue Sep 07 00:38:03 2010] [16864:7456] [error] jk_lb_worker.c (1603): Failed creating worker 2 [Tue Sep 07 00:38:03 2010] [16864:7456] [error] jk_lb_worker.c (1651): NULL parameters [Tue Sep 07 00:38:03 2010] [16864:7456] [error] jk_worker.c (163): validate failed for loadbalancer [Tue Sep 07 00:38:03 2010] [16864:7456] [error] jk_worker.c (262): failed to create worker loadbalancer [Tue Sep 07 00:38:39 2010] [7272:16728] [error] jk_ajp_common.c (2929): allocating ajp worker record from shared memory [Tue Sep 07 00:38:39 2010] [7272:16728] [error] jk_worker.c (151): factory for ajp13 failed for 1 [Tue Sep 07 00:38:39 2010] [7272:16728] [error] jk_lb_worker.c (1603): Failed creating worker 1 [Tue Sep 07 00:38:39 2010] [7272:16728] [error] jk_lb_worker.c (1651): NULL parameters [Tue Sep 07 00:38:39 2010] [7272:16728] [error] jk_worker.c (163): validate failed for loadbalancer [Tue Sep 07 00:38:39 2010] [7272:16728] [error] jk_worker.c (262): failed to create worker loadbalancer How do I allow Apache to communicate to 4 tomcats? Exact HTTPD, Tomcat, mod_jk versions? p - To unsubscribe, e-mail: users-unsubscr...@tomcat.apache.org For additional commands, e-mail: users-h...@tomcat.apache.org 0x62590808.asc Description: application/pgp-keys signature.asc Description: OpenPGP digital signature
Re: Apache AJP to 4 TCs
See remarks inline. On 07.09.2010 10:01, Andrew Bruno wrote: Fair enough Pid, here it is: Windows 2008 R2 64 Bit Java(TM) SE Runtime Environment (build 1.6.0_17-b04) / Java HotSpot(TM) 64-Bit Server VM (build 14.3-b01, mixed mode) Tomcat 6.0.28 Apache 2.2.15 mod_jk-1.2.30-httpd-2.2.3.so AB On Tue, Sep 7, 2010 at 5:52 PM, Pidp...@pidster.com wrote: On 07/09/2010 08:44, Andrew Bruno wrote: Hello, I am trying to add two extra workers, totaling 4 workers, but Apache fails to restart. This worker file works: # List the workers name worker.list=1,2,loadbalancer If you only want to use workers 1 and 2 via the loadbalancer, you can remove them from worker.list and only keep the loadbalancer there. # # First worker # worker.1.host=206.xx.xxx.xxx worker.1.port=8019 worker.1.type=ajp13 worker.1.lbfactor=4 # # Second worker # worker.2.host=206.xx.xxx.xxx worker.2.port=8029 worker.2.type=ajp13 worker.2.lbfactor=5 Strange lbfactors ... # -- # Load Balancer worker # -- worker.loadbalancer.type=lb worker.loadbalancer.balance_workers=1,2,3,4 This can't work, since the loadbalancer has no idea what you mean by worker 3 and 4 ... BUT WHEN I change to: worker.list=1,2,3,4,loadbalancer Same comment as above concerning worker.list worker.1.host=206.xx..xx.xx worker.1.port=8019 worker.1.type=ajp13 worker.1.lbfactor=4 worker.2.host=206.xx..xx.xx worker.2.port=8029 worker.2.type=ajp13 worker.2.lbfactor=5 worker.3.host=206.xx..xx.xx worker.3.port=8039 worker.3.type=ajp13 worker.3.lbfactor=1 worker.4.host=206.xx.xx.xx worker.4.port=8049 worker.4.type=ajp13 worker.4.lbfactor=2 And there are connectors in the Tomcat configuration listening on those ports 8019, ..., 8049, right? worker.loadbalancer.type=lb worker.loadbalancer.balance_workers=1,2,3,4 I get these kind of errors, and Apache fails to start [Tue Sep 07 00:36:37 2010] [18324:16360] [error] jk_lb_worker.c (1536): allocating lb sub worker record from shared memory There's a problem creating the workers when trying to access shared memory. Could you please show us your complete mod_jk configuration, especially the Jk* directives for Apache? Do you have an JkShmSize set? Are there any info, warn or error messages during startup and before this failure? [Tue Sep 07 00:36:37 2010] [18324:16360] [error] jk_worker.c (163): validate failed for loadbalancer [Tue Sep 07 00:36:37 2010] [18324:16360] [error] jk_worker.c (262): failed to create worker loadbalancer [Tue Sep 07 00:38:03 2010] [16864:7456] [error] jk_ajp_common.c (2929): allocating ajp worker record from shared memory [Tue Sep 07 00:38:03 2010] [16864:7456] [error] jk_worker.c (151): factory for ajp13 failed for 2 [Tue Sep 07 00:38:03 2010] [16864:7456] [error] jk_lb_worker.c (1603): Failed creating worker 2 [Tue Sep 07 00:38:03 2010] [16864:7456] [error] jk_lb_worker.c (1651): NULL parameters [Tue Sep 07 00:38:03 2010] [16864:7456] [error] jk_worker.c (163): validate failed for loadbalancer [Tue Sep 07 00:38:03 2010] [16864:7456] [error] jk_worker.c (262): failed to create worker loadbalancer [Tue Sep 07 00:38:39 2010] [7272:16728] [error] jk_ajp_common.c (2929): allocating ajp worker record from shared memory [Tue Sep 07 00:38:39 2010] [7272:16728] [error] jk_worker.c (151): factory for ajp13 failed for 1 [Tue Sep 07 00:38:39 2010] [7272:16728] [error] jk_lb_worker.c (1603): Failed creating worker 1 [Tue Sep 07 00:38:39 2010] [7272:16728] [error] jk_lb_worker.c (1651): NULL parameters [Tue Sep 07 00:38:39 2010] [7272:16728] [error] jk_worker.c (163): validate failed for loadbalancer [Tue Sep 07 00:38:39 2010] [7272:16728] [error] jk_worker.c (262): failed to create worker loadbalancer How do I allow Apache to communicate to 4 tomcats? Exact HTTPD, Tomcat, mod_jk versions? Regards, Rainer - To unsubscribe, e-mail: users-unsubscr...@tomcat.apache.org For additional commands, e-mail: users-h...@tomcat.apache.org
