Re: Problems with ImageIO
I saw this problem while loading a TGA reader. I was able to first resolve
the problem by disabling JreMemoryLeakPreventionListener, but a better
solution seems to be to put a static initializer in my webapp code that
forces the container to re-scan for reader implementations once the webapp
classloader is up. For example:
static {
ImageIO.scanForPlugins();
}
, and was able to resolve it by calling
Thad Humphries-2 wrote:
I believe I'm seeing the same problem that Simone (msg #210515) is having
(this after running Tomcat for YEARS without a hitch).
I use JAI and JAI-IMAGE I/O in various servlets. I'm running Java 1.5.17
without the JAI or JAI-IMAGE I/O installed. I've put jai_codec.jar,
jai_core.jar, and jai_imageio.jar in my application's WEB-INF/lib
directory.
My application runs without a hitch on Tomcat 6.0.14 on a Linux server
(and
has run fine for over a year). I have also run it on a Macintosh with
Tomcat 6.0.20.
Today I installed Tomcat 6.0.26 on Linux and tried running my webapp.
Under
this version of Tomcat, IteratorImageReader returned by
ImageIO.getImageReadersByFormatName(tiff) returns false for hasNext().
What gives?
Are you seeing this, Simone?
--
Hell hath no limits, nor is circumscrib'd In one self-place; but where we
are is hell, And where hell is, there must we ever be --Christopher
Marlowe, 'Doctor Faustus' (v, 121-24)
--
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Problems with ImageIO
I believe I'm seeing the same problem that Simone (msg #210515) is having (this after running Tomcat for YEARS without a hitch). I use JAI and JAI-IMAGE I/O in various servlets. I'm running Java 1.5.17 without the JAI or JAI-IMAGE I/O installed. I've put jai_codec.jar, jai_core.jar, and jai_imageio.jar in my application's WEB-INF/lib directory. My application runs without a hitch on Tomcat 6.0.14 on a Linux server (and has run fine for over a year). I have also run it on a Macintosh with Tomcat 6.0.20. Today I installed Tomcat 6.0.26 on Linux and tried running my webapp. Under this version of Tomcat, IteratorImageReader returned by ImageIO.getImageReadersByFormatName(tiff) returns false for hasNext(). What gives? Are you seeing this, Simone? -- Hell hath no limits, nor is circumscrib'd In one self-place; but where we are is hell, And where hell is, there must we ever be --Christopher Marlowe, 'Doctor Faustus' (v, 121-24)
Re: Problems with ImageIO
On 07/04/2010 19:38, Thad Humphries wrote: I believe I'm seeing the same problem that Simone (msg #210515) is having (this after running Tomcat for YEARS without a hitch). I use JAI and JAI-IMAGE I/O in various servlets. I'm running Java 1.5.17 without the JAI or JAI-IMAGE I/O installed. I've put jai_codec.jar, jai_core.jar, and jai_imageio.jar in my application's WEB-INF/lib directory. My application runs without a hitch on Tomcat 6.0.14 on a Linux server (and has run fine for over a year). I have also run it on a Macintosh with Tomcat 6.0.20. Today I installed Tomcat 6.0.26 on Linux and tried running my webapp. Under this version of Tomcat, IteratorImageReader returned by ImageIO.getImageReadersByFormatName(tiff) returns false for hasNext(). What gives? JreLeakPreventionListener ? Mark - To unsubscribe, e-mail: users-unsubscr...@tomcat.apache.org For additional commands, e-mail: users-h...@tomcat.apache.org
Re: Problems with ImageIO
JreLeakPreventionListener ? I'm sorry, I don't follow. Is there a monitor I can run? If you mean the Find leaks button in the Manager webpage ( http://localhost:8080/manager/html/findleaks), no, none are found. On Wed, Apr 7, 2010 at 3:24 PM, Mark Thomas ma...@apache.org wrote: On 07/04/2010 19:38, Thad Humphries wrote: I believe I'm seeing the same problem that Simone (msg #210515) is having (this after running Tomcat for YEARS without a hitch). I use JAI and JAI-IMAGE I/O in various servlets. I'm running Java 1.5.17 without the JAI or JAI-IMAGE I/O installed. I've put jai_codec.jar, jai_core.jar, and jai_imageio.jar in my application's WEB-INF/lib directory. My application runs without a hitch on Tomcat 6.0.14 on a Linux server (and has run fine for over a year). I have also run it on a Macintosh with Tomcat 6.0.20. Today I installed Tomcat 6.0.26 on Linux and tried running my webapp. Under this version of Tomcat, IteratorImageReader returned by ImageIO.getImageReadersByFormatName(tiff) returns false for hasNext(). What gives? JreLeakPreventionListener ? Mark - To unsubscribe, e-mail: users-unsubscr...@tomcat.apache.org For additional commands, e-mail: users-h...@tomcat.apache.org -- Hell hath no limits, nor is circumscrib'd In one self-place; but where we are is hell, And where hell is, there must we ever be --Christopher Marlowe, 'Doctor Faustus' (v, 121-24)
Re: Problems with ImageIO
On Apr 7, 2010, at 1:38 PM, Thad Humphries wrote: Today I installed Tomcat 6.0.26 on Linux and tried running my webapp. Under this version of Tomcat, IteratorImageReader returned by ImageIO.getImageReadersByFormatName(tiff) returns false for hasNext(). I had a similar problem (though it's maybe not even related) setting up a new Tomcat server on a fresh Ubuntu Linux install. We also use tif images and I had to install a couple extra ImageMagick packages, as well as something in JAI to get it to recognize .tif as a format. Until I did that, I could not process tiff images. Jon Brisbin Portal Webmaster NPC International, Inc. - To unsubscribe, e-mail: users-unsubscr...@tomcat.apache.org For additional commands, e-mail: users-h...@tomcat.apache.org
RE: Problems with ImageIO
From: Thad Humphries [mailto:thad.humphr...@gmail.com] Subject: Re: Problems with ImageIO JreLeakPreventionListener ? I believe Mark was suggesting that you try disabling the JreMemoryLeakPreventionListener in conf/server.xml, just in case it was interfering with the JAI registration. - Chuck THIS COMMUNICATION MAY CONTAIN CONFIDENTIAL AND/OR OTHERWISE PROPRIETARY MATERIAL and is thus for use only by the intended recipient. If you received this in error, please contact the sender and delete the e-mail and its attachments from all computers. - To unsubscribe, e-mail: users-unsubscr...@tomcat.apache.org For additional commands, e-mail: users-h...@tomcat.apache.org
Re: Problems with ImageIO
Ah! Gotcha. Thanks, Chuck, Mark. That fixed it. (Sorry for being so dense. Since Tomcat moved from v3.2 to v4, it's been about the most trouble-free app I use. I haven't fussed with configuration in YEARS.) On Wed, Apr 7, 2010 at 3:48 PM, Caldarale, Charles R chuck.caldar...@unisys.com wrote: From: Thad Humphries [mailto:thad.humphr...@gmail.com] Subject: Re: Problems with ImageIO JreLeakPreventionListener ? I believe Mark was suggesting that you try disabling the JreMemoryLeakPreventionListener in conf/server.xml, just in case it was interfering with the JAI registration. - Chuck THIS COMMUNICATION MAY CONTAIN CONFIDENTIAL AND/OR OTHERWISE PROPRIETARY MATERIAL and is thus for use only by the intended recipient. If you received this in error, please contact the sender and delete the e-mail and its attachments from all computers. - To unsubscribe, e-mail: users-unsubscr...@tomcat.apache.org For additional commands, e-mail: users-h...@tomcat.apache.org -- Hell hath no limits, nor is circumscrib'd In one self-place; but where we are is hell, And where hell is, there must we ever be --Christopher Marlowe, 'Doctor Faustus' (v, 121-24)
RE: Problems with ImageIO
From: Thad Humphries [mailto:thad.humphr...@gmail.com] Subject: Re: Problems with ImageIO Thanks, Chuck, Mark. That fixed it. There are several attributes that can be toggled on and off in the listener; you could try those one by one, rather than disabling everything. I suspect it's this one: appContextProtection. Doc is near the bottom of this page: http://tomcat.apache.org/tomcat-6.0-doc/config/listeners.html - Chuck THIS COMMUNICATION MAY CONTAIN CONFIDENTIAL AND/OR OTHERWISE PROPRIETARY MATERIAL and is thus for use only by the intended recipient. If you received this in error, please contact the sender and delete the e-mail and its attachments from all computers. - To unsubscribe, e-mail: users-unsubscr...@tomcat.apache.org For additional commands, e-mail: users-h...@tomcat.apache.org
Re: Problems with ImageIO
Chuck, Setting the JreMemoryLeakPreventionListener attribute appContextProtection=false also fixes the problem. My read of documentation makes me think (1) This leak situation may arise when I use stop or reload on my webapp. (2) It can also be prevented by placing my JAI and JAI-IMAGE I/O jars in CATALINA_HOME/lib or JAVA_HOME/jre/lib/ext vs my WEB-INF/lib. Is this read correct? Regarding #2, javax.imageio.ImageIO is part of the JDK, but the readers for TIFF are loaded from jai_imageio.jar I prefer to keep the jars in my WEB-INF/lib as it's less intrusive to the server manager. --Thad On Wed, Apr 7, 2010 at 4:05 PM, Caldarale, Charles R chuck.caldar...@unisys.com wrote: From: Thad Humphries [mailto:thad.humphr...@gmail.com] Subject: Re: Problems with ImageIO Thanks, Chuck, Mark. That fixed it. There are several attributes that can be toggled on and off in the listener; you could try those one by one, rather than disabling everything. I suspect it's this one: appContextProtection. Doc is near the bottom of this page: http://tomcat.apache.org/tomcat-6.0-doc/config/listeners.html - Chuck THIS COMMUNICATION MAY CONTAIN CONFIDENTIAL AND/OR OTHERWISE PROPRIETARY MATERIAL and is thus for use only by the intended recipient. If you received this in error, please contact the sender and delete the e-mail and its attachments from all computers. - To unsubscribe, e-mail: users-unsubscr...@tomcat.apache.org For additional commands, e-mail: users-h...@tomcat.apache.org -- Hell hath no limits, nor is circumscrib'd In one self-place; but where we are is hell, And where hell is, there must we ever be --Christopher Marlowe, 'Doctor Faustus' (v, 121-24)
RE: Problems with ImageIO
From: Thad Humphries [mailto:thad.humphr...@gmail.com] Subject: Re: Problems with ImageIO (1) This leak situation may arise when I use stop or reload on my webapp. Correct. The JRE keeps a global imageio registry with a reference to a webapp-specific class, resulting in a slow PermGen memory leak. (2) It can also be prevented by placing my JAI and JAI-IMAGE I/O jars in CATALINA_HOME/lib or JAVA_HOME/jre/lib/ext vs my WEB-INF/lib. Also correct, since the classes will now be loaded by a global classloader, rather than a webapp-specific one. I prefer to keep the jars in my WEB-INF/lib as it's less intrusive to the server manager. Which includes being easier for anyone installing your webapp. Unfortunately, you have to pick one poison or the other, since Sun mostly ignored their servlet-spec-required isolation of webapps when designing the numerous global registries. I suppose you might try a ServletContextListener that deregisters the JAI classes when your webapp is being shut down. - Chuck THIS COMMUNICATION MAY CONTAIN CONFIDENTIAL AND/OR OTHERWISE PROPRIETARY MATERIAL and is thus for use only by the intended recipient. If you received this in error, please contact the sender and delete the e-mail and its attachments from all computers. - To unsubscribe, e-mail: users-unsubscr...@tomcat.apache.org For additional commands, e-mail: users-h...@tomcat.apache.org
Re: Problems with ImageIO custom service providers with Tomcat = 6.0.24
Ciao Mark, thanks for your answer. The short explanation is the one I gave It looks like that ImageIO additional service providers are not loaded anymore at runtime via the standard jar META-INF/services mechanism. Longer explanation is as follows. ImageIO allows to define additional readers/writers by means of the javax ServiceRegistry/IIORegistry mechanism: this mechanism basically requires that we put complete classnames for the service strategies we have defined for a certain interface inside a text file whose name is the complete classname of the interface, e.g. javax.imageio.spi.ImageInputStreamSpi. Does this make sense? Simone. --- Ing. Simone Giannecchini GeoSolutions S.A.S. Founder - Software Engineer Via Carignoni 51 55041 Camaiore (LU) Italy phone: +39 0584983027 fax: +39 0584983027 mob:+39 333 8128928 http://www.geo-solutions.it http://geo-solutions.blogspot.com/ http://www.linkedin.com/in/simonegiannecchini http://twitter.com/simogeo --- On Tue, Mar 30, 2010 at 1:31 AM, Mark Thomas ma...@apache.org wrote: On 30/03/2010 00:21, Simone Giannecchini wrote: Ciao, long story short, in an OS geospatial project that we maintain we are experiencing problems when deploying on Tomcat = 6.0.24 due to the latest permgen fixes ( I guess). Define problems. What? When? It looks like that ImageIO additional service providers are not loaded anymore at runtime via the standard jar META-INF/services mechanism. Any hints for putting together a workaround? How about some hints on what problem you are seeing. Mark - To unsubscribe, e-mail: users-unsubscr...@tomcat.apache.org For additional commands, e-mail: users-h...@tomcat.apache.org - To unsubscribe, e-mail: users-unsubscr...@tomcat.apache.org For additional commands, e-mail: users-h...@tomcat.apache.org
Re: Problems with ImageIO custom service providers with Tomcat = 6.0.24
On 30/03/2010 08:03, Simone Giannecchini wrote: Ciao Mark, thanks for your answer. The short explanation is the one I gave It looks like that ImageIO additional service providers are not loaded anymore at runtime via the standard jar META-INF/services mechanism. Longer explanation is as follows. ImageIO allows to define additional readers/writers by means of the javax ServiceRegistry/IIORegistry mechanism: this mechanism basically requires that we put complete classnames for the service strategies we have defined for a certain interface inside a text file whose name is the complete classname of the interface, e.g. javax.imageio.spi.ImageInputStreamSpi. Does this make sense? That makes sense but doesn't tell me anything I didn't already know. Still no info on when you see this issue. All the time? Just on reload? Randomly? Still no info on where these JARs are located. In a WAR, in CATALINA_HOME/lib, somewhere else? Mark - To unsubscribe, e-mail: users-unsubscr...@tomcat.apache.org For additional commands, e-mail: users-h...@tomcat.apache.org
Re: Problems with ImageIO custom service providers with Tomcat = 6.0.24
On Tue, Mar 30, 2010 at 9:41 AM, Mark Thomas ma...@apache.org wrote: On 30/03/2010 08:03, Simone Giannecchini wrote: Ciao Mark, thanks for your answer. The short explanation is the one I gave It looks like that ImageIO additional service providers are not loaded anymore at runtime via the standard jar META-INF/services mechanism. Longer explanation is as follows. ImageIO allows to define additional readers/writers by means of the javax ServiceRegistry/IIORegistry mechanism: this mechanism basically requires that we put complete classnames for the service strategies we have defined for a certain interface inside a text file whose name is the complete classname of the interface, e.g. javax.imageio.spi.ImageInputStreamSpi. Does this make sense? That makes sense but doesn't tell me anything I didn't already know. Still no info on when you see this issue. All the time? Just on reload? Randomly? The webapp I am talking about is a GeoSpatial server called GeoServer. At startup my own SPI implementations are not registered anymore in the IIORegistry. Still no info on where these JARs are located. In a WAR, in CATALINA_HOME/lib, somewhere else? Libs are inside WEB-INF/lib of GeoServer WAR. Thx, Simone. Mark - To unsubscribe, e-mail: users-unsubscr...@tomcat.apache.org For additional commands, e-mail: users-h...@tomcat.apache.org - To unsubscribe, e-mail: users-unsubscr...@tomcat.apache.org For additional commands, e-mail: users-h...@tomcat.apache.org
Problems with ImageIO custom service providers with Tomcat = 6.0.24
Ciao, long story short, in an OS geospatial project that we maintain we are experiencing problems when deploying on Tomcat = 6.0.24 due to the latest permgen fixes ( I guess). It looks like that ImageIO additional service providers are not loaded anymore at runtime via the standard jar META-INF/services mechanism. Any hints for putting together a workaround? Ciao, Simone. --- Ing. Simone Giannecchini GeoSolutions S.A.S. Founder - Software Engineer Via Carignoni 51 55041 Camaiore (LU) Italy phone: +39 0584983027 fax: +39 0584983027 mob:+39 333 8128928 http://www.geo-solutions.it http://geo-solutions.blogspot.com/ http://www.linkedin.com/in/simonegiannecchini http://twitter.com/simogeo --- - To unsubscribe, e-mail: users-unsubscr...@tomcat.apache.org For additional commands, e-mail: users-h...@tomcat.apache.org
Re: Problems with ImageIO custom service providers with Tomcat = 6.0.24
On 30/03/2010 00:21, Simone Giannecchini wrote: Ciao, long story short, in an OS geospatial project that we maintain we are experiencing problems when deploying on Tomcat = 6.0.24 due to the latest permgen fixes ( I guess). Define problems. What? When? It looks like that ImageIO additional service providers are not loaded anymore at runtime via the standard jar META-INF/services mechanism. Any hints for putting together a workaround? How about some hints on what problem you are seeing. Mark - To unsubscribe, e-mail: users-unsubscr...@tomcat.apache.org For additional commands, e-mail: users-h...@tomcat.apache.org
