Re: 20 Tips for Using Tomcat in Production
Thanks for this info,... How do I implement this tip? #18. Use the -server JVM option. This enables the server JVM, which JIT compiles bytecode much earlier, and with stronger optimizations. Startup and first calls will be slower due to JIT compilation taking more time, but subsequent ones will be faster. Karel In putting #1 into the JAVA_OPTS (which it appears that is the CATALINA_OPTS for our implementation), it doesn't appear to work, as Tomcat doesn't restart. It could be our version -- which is currently 5.0.30. please let me know if there are other steps we need to take here as well. thanks, Kim :-) On 8/21/07, Shane Witbeck [EMAIL PROTECTED] wrote: I thought my latest blog post would be of interest to the people on this list: http://www.digitalsanctum.com/2007/08/18/20-tips-for-using-tomcat-in-production/ - To start a new topic, e-mail: users@tomcat.apache.org To unsubscribe, e-mail: [EMAIL PROTECTED] For additional commands, e-mail: [EMAIL PROTECTED] - To start a new topic, e-mail: users@tomcat.apache.org To unsubscribe, e-mail: [EMAIL PROTECTED] For additional commands, e-mail: [EMAIL PROTECTED]
Re: Tomcat with 8 GB memory
So,... if I have 100s of users planned to hit the same Essbase application via Tomcat (5.0.28), do I need a 64 bit machine? And for us dummies, how do we set the heap and/or other performance-oriented settings? Karel -BEGIN PGP SIGNED MESSAGE- Hash: SHA1 David, David kerber wrote: Nelson, Tracy M. wrote: | From: Christopher Schultz [mailto:[EMAIL PROTECTED] | Sent: Friday, 27 July, 2007 18:25 | | First of all, no home user ever bought an 8-bit machine. Oh, I'll bet there are a ton of former Apple ][, TRS-80 and Commodore Apologies, Tracy. I was thinking of Intel chips, since that was where this abysmal thread had been going. You're right. There were home users of 8-bit general-purpose microprocessors. I used my Tandy-1000 for many years, until I sold it after buying my super fast 16MHz 80286 with 16MB of RAM. The Tandy-1000 did not have an 8-bit microprocessor. - -chris -BEGIN PGP SIGNATURE- Version: GnuPG v1.4.7 (MingW32) Comment: Using GnuPG with Mozilla - http://enigmail.mozdev.org iD8DBQFGrkZM9CaO5/Lv0PARAoY2AJ0etHOgjcxbu9vNg4Urjhsw5965UwCdFZ2d B8hgq1VBM4emfWenp7lTfDY= =jhAk -END PGP SIGNATURE- - To start a new topic, e-mail: users@tomcat.apache.org To unsubscribe, e-mail: [EMAIL PROTECTED] For additional commands, e-mail: [EMAIL PROTECTED] - To start a new topic, e-mail: users@tomcat.apache.org To unsubscribe, e-mail: [EMAIL PROTECTED] For additional commands, e-mail: [EMAIL PROTECTED]
Re: Tomcat with 8 GB memory
Thanks Ben. Depends on what the users are doing when they hit your application. If the are storing lots of data in the session then you'll need enough ram to hold all the expected data. If they are uploading files, i would imagine that you will need to have enough ram to hold the uploaded file before you stream it to disk or database. Although Tomcat might be smart? and store the uploaded files to disk, the tomcat guru's will have an answer to this. Saying all that is the Essbase app an inhouse app or a 3rd party one, if its 3rd party one then maybe they can give you some min requirements. To set the virtual machines heap size you can uses the -Xms -Xmx params. Go here [1] for info on the vm. The bottom line is, you need to understand what your app is going to do to work out what hardware your going to need. [1] http://java.sun.com/javase/technologies/hotspot/index.jsp On 7/30/07, Karel V Sedlacek [EMAIL PROTECTED] wrote: So,... if I have 100s of users planned to hit the same Essbase application via Tomcat (5.0.28), do I need a 64 bit machine? And for us dummies, how do we set the heap and/or other performance-oriented settings? Karel -BEGIN PGP SIGNED MESSAGE- Hash: SHA1 David, David kerber wrote: Nelson, Tracy M. wrote: | From: Christopher Schultz [mailto:[EMAIL PROTECTED] | Sent: Friday, 27 July, 2007 18:25 | | First of all, no home user ever bought an 8-bit machine. Oh, I'll bet there are a ton of former Apple ][, TRS-80 and Commodore Apologies, Tracy. I was thinking of Intel chips, since that was where this abysmal thread had been going. You're right. There were home users of 8-bit general-purpose microprocessors. I used my Tandy-1000 for many years, until I sold it after buying my super fast 16MHz 80286 with 16MB of RAM. The Tandy-1000 did not have an 8-bit microprocessor. - -chris -BEGIN PGP SIGNATURE- Version: GnuPG v1.4.7 (MingW32) Comment: Using GnuPG with Mozilla - http://enigmail.mozdev.org iD8DBQFGrkZM9CaO5/Lv0PARAoY2AJ0etHOgjcxbu9vNg4Urjhsw5965UwCdFZ2d B8hgq1VBM4emfWenp7lTfDY= =jhAk -END PGP SIGNATURE- - To start a new topic, e-mail: users@tomcat.apache.org To unsubscribe, e-mail: [EMAIL PROTECTED] For additional commands, e-mail: [EMAIL PROTECTED] - To start a new topic, e-mail: users@tomcat.apache.org To unsubscribe, e-mail: [EMAIL PROTECTED] For additional commands, e-mail: [EMAIL PROTECTED] - To start a new topic, e-mail: users@tomcat.apache.org To unsubscribe, e-mail: [EMAIL PROTECTED] For additional commands, e-mail: [EMAIL PROTECTED] - To start a new topic, e-mail: users@tomcat.apache.org To unsubscribe, e-mail: [EMAIL PROTECTED] For additional commands, e-mail: [EMAIL PROTECTED]
Re: Tomcat with 8 GB memory
Point taken,... thanks Hassan On 7/30/07, ben short [EMAIL PROTECTED] wrote: If they are uploading files, i would imagine that you will need to have enough ram to hold the uploaded file before you stream it to disk or database. Although Tomcat might be smart? and store the uploaded files to disk Nothing to do with Tomcat -- this is the application's responsibility. (Commons FileUpload is nicely configurable in this area, FWIW.) -- Hassan Schroeder [EMAIL PROTECTED] - To start a new topic, e-mail: users@tomcat.apache.org To unsubscribe, e-mail: [EMAIL PROTECTED] For additional commands, e-mail: [EMAIL PROTECTED] - To start a new topic, e-mail: users@tomcat.apache.org To unsubscribe, e-mail: [EMAIL PROTECTED] For additional commands, e-mail: [EMAIL PROTECTED]
Re: Logging all data sent to client
IllegalStateException if codegetOutputStream/code has
* already been called for this response
* @throws IOException if an input/output error occurs
*/
public PrintWriter getWriter() throws IOException
{
if (mWriter != null)
return (mWriter);
if (mStream != null)
throw new IllegalStateException(getOutputStream() has
already been called for this response);
mStream = createOutputStream();
mLogger.debug(mStream is set to + mStream + in
getOutputStream);
// HttpServletResponse.getCharacterEncoding() shouldn't return
null
// according the spec, so feel free to remove that if
mWriter = new PrintWriter(mStream);
return (mWriter);
}
}
LoggingServletOutputStream.java
class LoggingServletOutputStream extends ServletOutputStream
{
private Logger mLogger;
private HttpServletResponse mResponse;
private OutputStream mOutputStream;
private ByteArrayOutputStream mByteArrayOutputStream = new
ByteArrayOutputStream();
public LoggingServletOutputStream(HttpServletResponse response,
Logger logger) throws IOException
{
mResponse = response;
mOutputStream = mResponse.getOutputStream();
mLogger = logger;
}
public void write(int b) throws IOException
{
mByteArrayOutputStream.write(b);
mOutputStream.write(b);
}
@Override
public void write(byte b[]) throws IOException
{
mByteArrayOutputStream.write(b);
mOutputStream.write(b);
}
@Override
public void write(byte b[], int off, int len) throws IOException
{
mByteArrayOutputStream.write(b, off, len);
mOutputStream.write(b, off, len);
}
@Override
public void close() throws IOException
{
if ( mLogger.isDebugEnabled() )
{
float kBytes = mByteArrayOutputStream.size() / 1024f;
mLogger.debug(Writing + kBytes + kb ( +
mByteArrayOutputStream.size() + b) to the client.\n +
mByteArrayOutputStream.toString());
}
mByteArrayOutputStream = null;
mOutputStream.close();
}
@Override
public void flush() throws IOException
{
mOutputStream.flush();
}
}
web.xml Snippit..
filter
filter-nameLogging Filter/filter-name
filter-classcom.nexusalpha.journeycheck.presentation.debug.HttpServletResponseLoggingFilter/filter-class
/filter
filter-mapping
filter-nameLogging Filter/filter-name
url-pattern/*/url-pattern
/filter-mapping
On 7/24/07, ben short [EMAIL PROTECTED] wrote:
Yes sure.
On 7/24/07, Karel V Sedlacek [EMAIL PROTECTED] wrote:
Ben,
When you succeed at this would you pass along your code? We have
issues
with timeouts and it would be great to see what's being passed along
to
the client.
Karel
Cornell University
Yes from the CompressionServletResponseWrapper example I can see the
methods I need to override as you have pointed out.
On 7/24/07, Tim Funk [EMAIL PROTECTED] wrote:
Yes - but tomcat doesn't have that functionality out of the box -
you'd
need to write a filter which creates a HttpServletRequestWrapper
which
overrides getOutputStream() (or getWriter()) and then passes back a
wrapped OutStream or Writer which also logs to wherever when
print(int
i) is called.
-Tim
ben short wrote:
Hi Tim,
Thanks for that, but it only seems to log out the
request/response
headers. Is It possible to log everything sent to the client?
Ben
On 7/24/07, Tim Funk [EMAIL PROTECTED] wrote:
Look at the RequestDumperValve
-Tim
ben short wrote:
Hi,
I using Tomcat 6.0.13 and Spring 2.0.6. I have been involved
in
developing a website that products pages in various formats ,
such
as
www, xml, wap and pda. We are having some issues with wap and
pda,
but
cant ciew the html source thats being shown on the devices.
We can view the html source in firefox using a wap and pda
plugin,
but
the issues are not always the same or there at all.
What I would like to do is log all the data sent to the
client. I
have
been looking at encapsulating the HttpServletRequest and log
out
the
data to a log file.
-
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Re: Logging all data sent to client
Ben, When you succeed at this would you pass along your code? We have issues with timeouts and it would be great to see what's being passed along to the client. Karel Cornell University Yes from the CompressionServletResponseWrapper example I can see the methods I need to override as you have pointed out. On 7/24/07, Tim Funk [EMAIL PROTECTED] wrote: Yes - but tomcat doesn't have that functionality out of the box - you'd need to write a filter which creates a HttpServletRequestWrapper which overrides getOutputStream() (or getWriter()) and then passes back a wrapped OutStream or Writer which also logs to wherever when print(int i) is called. -Tim ben short wrote: Hi Tim, Thanks for that, but it only seems to log out the request/response headers. Is It possible to log everything sent to the client? Ben On 7/24/07, Tim Funk [EMAIL PROTECTED] wrote: Look at the RequestDumperValve -Tim ben short wrote: Hi, I using Tomcat 6.0.13 and Spring 2.0.6. I have been involved in developing a website that products pages in various formats , such as www, xml, wap and pda. We are having some issues with wap and pda, but cant ciew the html source thats being shown on the devices. We can view the html source in firefox using a wap and pda plugin, but the issues are not always the same or there at all. What I would like to do is log all the data sent to the client. I have been looking at encapsulating the HttpServletRequest and log out the data to a log file. - To start a new topic, e-mail: users@tomcat.apache.org To unsubscribe, e-mail: [EMAIL PROTECTED] For additional commands, e-mail: [EMAIL PROTECTED] - To start a new topic, e-mail: users@tomcat.apache.org To unsubscribe, e-mail: [EMAIL PROTECTED] For additional commands, e-mail: [EMAIL PROTECTED] - To start a new topic, e-mail: users@tomcat.apache.org To unsubscribe, e-mail: [EMAIL PROTECTED] For additional commands, e-mail: [EMAIL PROTECTED]
