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Posted to users@tomcat.apache.org by Greg Huber <gr...@gmail.com> on 2023/11/04 11:03:36 UTC

Hello,

I am using the <Resources> and <PostResources> to run tomcat for 
debugging my app (and it is pretty awesome).  I am getting the cache 
warning limit, as it is 10mb, what effect would it have if I turned off 
the cache ie cachingAllowed="false" rather than having to increase the 
limit all the time?

Thanks.


Re:

Posted by Greg Huber <gr...@gmail.com>.
 >>  More precisely then, JARs and classes from WEB-INF/lib / 
WEB-INF/classes won't be cached but non-class resources in those 
locations will be.

This app, the cache starts to complain at approx 18mb.

If I calculate the size roughly (right click properties) of all the 
target/class folders = 21.97mb, and the target/classes/com folders = 
1.0648mb.

So the calculated size would be 20.9129 ie 21mb.

...I guess using post resources this way was not in the initial scope, 
but it works great (way better than the previous way).

Thanks Greg

On 07/11/2023 09:12, Mark Thomas wrote:
> On 07/11/2023 08:05, Greg Huber wrote:
>>  >> The "i.e. everything NOT under WEB-INF/lib or WEB-INF/classes" is 
>> irrespective of which resource collection it is in. So JARs >> from 
>> PostResources won't be cached.
>>
>> OK sorry missed the not.
>>
>> Although I am mapping in post resources to a maven project which has 
>> a resources folder that ends up in the target/classes folder.
>
> Ah. More precisely then, JARs and classes from WEB-INF/lib / 
> WEB-INF/classes won't be cached but non-class resources in those 
> locations will be.
>
> Mark
>
>> <PostResources
>> base="/home/devuser/git/mavenproject/myplugin/target/classes"
>> className="org.apache.catalina.webresources.DirResourceSet"
>>              webAppMount="/WEB-INF/classes" />
>>
>> ie
>>
>> /home/devuser/git/mavenproject/myplugin/src/main/resources/template/..
>>
>> WARNING: Unable to add the resource at 
>> [/WEB-INF/classes/template/js/jstree/jquery.hotkeys.min.js] to the 
>> cache for web application [/myapp] because there was insufficient 
>> free space available after evicting expired cache entries - consider 
>> increasing the maximum size of the cache
>> Nov 07, 2023 6:22:52 AM org.apache.catalina.webresources.Cache 
>> getResource
>>
>>
>> Checking the logs, it only complains about /WEB-INF/classes/
>>
>> I will test and calculate the size of all the target/classes folder 
>> which are mapped under /WEB-INF/classes in post resources.
>>
>> Cheers Greg
>>
>> On 06/11/2023 12:19, Mark Thomas wrote:
>>
>>> On 06/11/2023 10:57, Greg Huber wrote:
>>>>  >> The maximum useful size will be the total size of static 
>>>> resources (i.e. everything NOT under WEB-INF/lib or WEB-INF/classes).
>>>>
>>>> Since I have nothing in either of these, its all mapped in the 
>>>> PostResources,  I can just calculate the size of the jars, and add 
>>>> a bit for luck.  (ie 85mb +5mb).🙂
>>>
>>> The "i.e. everything NOT under WEB-INF/lib or WEB-INF/classes" is 
>>> irrespective of which resource collection it is in. So JARs from 
>>> PostResources won't be cached.
>>>
>>> Mark
>>>
>>>
>>>>
>>>> Thanks
>>>>
>>>> On 06/11/2023 09:43, Mark Thomas wrote:
>>>>> On 05/11/2023 17:23, Greg Huber wrote:
>>>>>> Thanks Mark and Chris.
>>>>>>
>>>>>>>> <PostResources
>>>>>>>> base="/home/devuser/git/myproject/target/classes"
>>>>>>>> className="org.apache.catalina.webresources.DirResourceSet"
>>>>>>>>               webAppMount="/WEB-INF/classes" />
>>>>>>
>>>>>> I have not noticed any slowness yet.
>>>>>>
>>>>>> There are alot of jars (approx 160), but the target/classes 
>>>>>> folder are my
>>>>>> app's classes that I am working on.  These can change (ie not 
>>>>>> static), so
>>>>>> may be better to switch it off.
>>>>>>
>>>>>> Is there anyway to calculate the size needed for the cache setting?
>>>>>
>>>>> The maximum useful size will be the total size of static resources 
>>>>> (i.e. everything NOT under WEB-INF/lib or WEB-INF/classes).
>>>>>
>>>>> The right size is going to be a trade-off between the cost of the 
>>>>> memory for the cache and the benefits the cache brings. Those 
>>>>> benefits are going to be application (and hardware) dependent.
>>>>>
>>>>> Mark
>>>>>
>>>>>
>>>>>>
>>>>>> Thanks Greg
>>>>>>
>>>>>>
>>>>>> On Sun, 5 Nov 2023 at 15:31, Christopher Schultz <
>>>>>> chris@christopherschultz.net> wrote:
>>>>>>
>>>>>>> Greg and Mark,
>>>>>>>
>>>>>>> On 11/5/23 09:31, Mark Thomas wrote:
>>>>>>>> On 05/11/2023 10:18, Greg Huber wrote:
>>>>>>>>> OK thanks, the docs mention "static resource cache" but I 
>>>>>>>>> could not
>>>>>>>>> find info on what it actually is.
>>>>>>>>
>>>>>>>> It caches the content of static resources in memory and uses 
>>>>>>>> that rather
>>>>>>>> than accessing disk.
>>>>>>>>
>>>>>>>>> I am loading maven jars and /target/classes.
>>>>>>>>>
>>>>>>>>> eg:
>>>>>>>>>
>>>>>>>>> <PostResources
>>>>>>>>> base="/home/devuser/git/myproject/tools/META-INF"
>>>>>>>>> className="org.apache.catalina.webresources.DirResourceSet"
>>>>>>>>> webAppMount="/WEB-INF/classes/META-INF" />
>>>>>>>>>
>>>>>>>>> <PostResources
>>>>>>>>> base="/home/devuser/git/myproject/target/classes"
>>>>>>>>> className="org.apache.catalina.webresources.DirResourceSet"
>>>>>>>>>               webAppMount="/WEB-INF/classes" />
>>>>>>>>>
>>>>>>>>> <PostResources
>>>>>>>>>
>>>>>>> base="/home/devuser/.m2/repository/commons-logging/commons-logging/1.2/commons-logging-1.2.jar" 
>>>>>>>
>>>>>>>>> className="org.apache.catalina.webresources.FileResourceSet"
>>>>>>>>> webAppMount="/WEB-INF/lib/commons-logging-1.2.jar" />
>>>>>>>>>
>>>>>>>>>
>>>>>>>>> As its purely for development guess it makes no difference?
>>>>>>>>
>>>>>>>> I doubt you'll notice if you disable it.
>>>>>>>
>>>>>>> +1
>>>>>>>
>>>>>>> Since you are using JAR files, the caching won't matter once the 
>>>>>>> classes
>>>>>>> themselves are loaded-into memory. So you may observe some slowness
>>>>>>> early in the lifetime of the web application after deployment, 
>>>>>>> but at
>>>>>>> long as your code, etc. isn't trying to re-scan JAR files all 
>>>>>>> the time,
>>>>>>> etc. then you should be fine.
>>>>>>>
>>>>>>> -chris
>>>>>>>
>>>>>>>>> On 05/11/2023 10:02, Mark Thomas wrote:
>>>>>>>>>> On 04/11/2023 11:03, Greg Huber wrote:
>>>>>>>>>>> Hello,
>>>>>>>>>>>
>>>>>>>>>>> I am using the <Resources> and <PostResources> to run tomcat 
>>>>>>>>>>> for
>>>>>>>>>>> debugging my app (and it is pretty awesome). I am getting 
>>>>>>>>>>> the cache
>>>>>>>>>>> warning limit, as it is 10mb, what effect would it have if I 
>>>>>>>>>>> turned
>>>>>>>>>>> off the cache ie cachingAllowed="false" rather than having to
>>>>>>>>>>> increase the limit all the time?
>>>>>>>>>>
>>>>>>>>>> This is one of those "it depends" questions. There are lots of
>>>>>>>>>> factors that will influence how effective the cache is. You 
>>>>>>>>>> could try
>>>>>>>>>> and reason what the impact would be but you will likely get a 
>>>>>>>>>> more
>>>>>>>>>> accurate answer, faster by just trying it and measuring the 
>>>>>>>>>> impact.
>>>>>>>>>>
>>>>>>>>>> Mark
>>>>>>>>>>
>>>>>>>>>> --------------------------------------------------------------------- 
>>>>>>>>>>
>>>>>>>>>> To unsubscribe, e-mail: users-unsubscribe@tomcat.apache.org
>>>>>>>>>> For additional commands, e-mail: users-help@tomcat.apache.org
>>>>>>>>>>
>>>>>>>>
>>>>>>>> --------------------------------------------------------------------- 
>>>>>>>>
>>>>>>>> To unsubscribe, e-mail: users-unsubscribe@tomcat.apache.org
>>>>>>>> For additional commands, e-mail: users-help@tomcat.apache.org
>>>>>>>>
>>>>>>>
>>>>>>> --------------------------------------------------------------------- 
>>>>>>>
>>>>>>> To unsubscribe, e-mail: users-unsubscribe@tomcat.apache.org
>>>>>>> For additional commands, e-mail: users-help@tomcat.apache.org
>>>>>>>
>>>>>>>
>>>>>>
>>>>>
>>>>> ---------------------------------------------------------------------
>>>>> To unsubscribe, e-mail: users-unsubscribe@tomcat.apache.org
>>>>> For additional commands, e-mail: users-help@tomcat.apache.org
>>>>>
>>>>
>>>> ---------------------------------------------------------------------
>>>> To unsubscribe, e-mail: users-unsubscribe@tomcat.apache.org
>>>> For additional commands, e-mail: users-help@tomcat.apache.org
>>>>
>>>
>>> ---------------------------------------------------------------------
>>> To unsubscribe, e-mail: users-unsubscribe@tomcat.apache.org
>>> For additional commands, e-mail: users-help@tomcat.apache.org
>>>
>
> ---------------------------------------------------------------------
> To unsubscribe, e-mail: users-unsubscribe@tomcat.apache.org
> For additional commands, e-mail: users-help@tomcat.apache.org
>

Re:

Posted by Mark Thomas <ma...@apache.org>.
On 07/11/2023 08:05, Greg Huber wrote:
>  >> The "i.e. everything NOT under WEB-INF/lib or WEB-INF/classes" is 
> irrespective of which resource collection it is in. So JARs >> from 
> PostResources won't be cached.
> 
> OK sorry missed the not.
> 
> Although I am mapping in post resources to a maven project which has a 
> resources folder that ends up in the target/classes folder.

Ah. More precisely then, JARs and classes from WEB-INF/lib / 
WEB-INF/classes won't be cached but non-class resources in those 
locations will be.

Mark

> <PostResources
> base="/home/devuser/git/mavenproject/myplugin/target/classes"
> className="org.apache.catalina.webresources.DirResourceSet"
>              webAppMount="/WEB-INF/classes" />
> 
> ie
> 
> /home/devuser/git/mavenproject/myplugin/src/main/resources/template/..
> 
> WARNING: Unable to add the resource at 
> [/WEB-INF/classes/template/js/jstree/jquery.hotkeys.min.js] to the cache 
> for web application [/myapp] because there was insufficient free space 
> available after evicting expired cache entries - consider increasing the 
> maximum size of the cache
> Nov 07, 2023 6:22:52 AM org.apache.catalina.webresources.Cache getResource
> 
> 
> Checking the logs, it only complains about /WEB-INF/classes/
> 
> I will test and calculate the size of all the target/classes folder 
> which are mapped under /WEB-INF/classes in post resources.
> 
> Cheers Greg
> 
> On 06/11/2023 12:19, Mark Thomas wrote:
> 
>> On 06/11/2023 10:57, Greg Huber wrote:
>>>  >> The maximum useful size will be the total size of static 
>>> resources (i.e. everything NOT under WEB-INF/lib or WEB-INF/classes).
>>>
>>> Since I have nothing in either of these, its all mapped in the 
>>> PostResources,  I can just calculate the size of the jars, and add a 
>>> bit for luck.  (ie 85mb +5mb).🙂
>>
>> The "i.e. everything NOT under WEB-INF/lib or WEB-INF/classes" is 
>> irrespective of which resource collection it is in. So JARs from 
>> PostResources won't be cached.
>>
>> Mark
>>
>>
>>>
>>> Thanks
>>>
>>> On 06/11/2023 09:43, Mark Thomas wrote:
>>>> On 05/11/2023 17:23, Greg Huber wrote:
>>>>> Thanks Mark and Chris.
>>>>>
>>>>>>> <PostResources
>>>>>>> base="/home/devuser/git/myproject/target/classes"
>>>>>>> className="org.apache.catalina.webresources.DirResourceSet"
>>>>>>>               webAppMount="/WEB-INF/classes" />
>>>>>
>>>>> I have not noticed any slowness yet.
>>>>>
>>>>> There are alot of jars (approx 160), but the target/classes folder 
>>>>> are my
>>>>> app's classes that I am working on.  These can change (ie not 
>>>>> static), so
>>>>> may be better to switch it off.
>>>>>
>>>>> Is there anyway to calculate the size needed for the cache setting?
>>>>
>>>> The maximum useful size will be the total size of static resources 
>>>> (i.e. everything NOT under WEB-INF/lib or WEB-INF/classes).
>>>>
>>>> The right size is going to be a trade-off between the cost of the 
>>>> memory for the cache and the benefits the cache brings. Those 
>>>> benefits are going to be application (and hardware) dependent.
>>>>
>>>> Mark
>>>>
>>>>
>>>>>
>>>>> Thanks Greg
>>>>>
>>>>>
>>>>> On Sun, 5 Nov 2023 at 15:31, Christopher Schultz <
>>>>> chris@christopherschultz.net> wrote:
>>>>>
>>>>>> Greg and Mark,
>>>>>>
>>>>>> On 11/5/23 09:31, Mark Thomas wrote:
>>>>>>> On 05/11/2023 10:18, Greg Huber wrote:
>>>>>>>> OK thanks, the docs mention "static resource cache" but I could not
>>>>>>>> find info on what it actually is.
>>>>>>>
>>>>>>> It caches the content of static resources in memory and uses that 
>>>>>>> rather
>>>>>>> than accessing disk.
>>>>>>>
>>>>>>>> I am loading maven jars and /target/classes.
>>>>>>>>
>>>>>>>> eg:
>>>>>>>>
>>>>>>>> <PostResources
>>>>>>>> base="/home/devuser/git/myproject/tools/META-INF"
>>>>>>>> className="org.apache.catalina.webresources.DirResourceSet"
>>>>>>>>               webAppMount="/WEB-INF/classes/META-INF" />
>>>>>>>>
>>>>>>>> <PostResources
>>>>>>>> base="/home/devuser/git/myproject/target/classes"
>>>>>>>> className="org.apache.catalina.webresources.DirResourceSet"
>>>>>>>>               webAppMount="/WEB-INF/classes" />
>>>>>>>>
>>>>>>>> <PostResources
>>>>>>>>
>>>>>> base="/home/devuser/.m2/repository/commons-logging/commons-logging/1.2/commons-logging-1.2.jar"
>>>>>>>> className="org.apache.catalina.webresources.FileResourceSet"
>>>>>>>> webAppMount="/WEB-INF/lib/commons-logging-1.2.jar" />
>>>>>>>>
>>>>>>>>
>>>>>>>> As its purely for development guess it makes no difference?
>>>>>>>
>>>>>>> I doubt you'll notice if you disable it.
>>>>>>
>>>>>> +1
>>>>>>
>>>>>> Since you are using JAR files, the caching won't matter once the 
>>>>>> classes
>>>>>> themselves are loaded-into memory. So you may observe some slowness
>>>>>> early in the lifetime of the web application after deployment, but at
>>>>>> long as your code, etc. isn't trying to re-scan JAR files all the 
>>>>>> time,
>>>>>> etc. then you should be fine.
>>>>>>
>>>>>> -chris
>>>>>>
>>>>>>>> On 05/11/2023 10:02, Mark Thomas wrote:
>>>>>>>>> On 04/11/2023 11:03, Greg Huber wrote:
>>>>>>>>>> Hello,
>>>>>>>>>>
>>>>>>>>>> I am using the <Resources> and <PostResources> to run tomcat for
>>>>>>>>>> debugging my app (and it is pretty awesome).  I am getting the 
>>>>>>>>>> cache
>>>>>>>>>> warning limit, as it is 10mb, what effect would it have if I 
>>>>>>>>>> turned
>>>>>>>>>> off the cache ie cachingAllowed="false" rather than having to
>>>>>>>>>> increase the limit all the time?
>>>>>>>>>
>>>>>>>>> This is one of those "it depends" questions. There are lots of
>>>>>>>>> factors that will influence how effective the cache is. You 
>>>>>>>>> could try
>>>>>>>>> and reason what the impact would be but you will likely get a more
>>>>>>>>> accurate answer, faster by just trying it and measuring the 
>>>>>>>>> impact.
>>>>>>>>>
>>>>>>>>> Mark
>>>>>>>>>
>>>>>>>>> ---------------------------------------------------------------------
>>>>>>>>> To unsubscribe, e-mail: users-unsubscribe@tomcat.apache.org
>>>>>>>>> For additional commands, e-mail: users-help@tomcat.apache.org
>>>>>>>>>
>>>>>>>
>>>>>>> ---------------------------------------------------------------------
>>>>>>> To unsubscribe, e-mail: users-unsubscribe@tomcat.apache.org
>>>>>>> For additional commands, e-mail: users-help@tomcat.apache.org
>>>>>>>
>>>>>>
>>>>>> ---------------------------------------------------------------------
>>>>>> To unsubscribe, e-mail: users-unsubscribe@tomcat.apache.org
>>>>>> For additional commands, e-mail: users-help@tomcat.apache.org
>>>>>>
>>>>>>
>>>>>
>>>>
>>>> ---------------------------------------------------------------------
>>>> To unsubscribe, e-mail: users-unsubscribe@tomcat.apache.org
>>>> For additional commands, e-mail: users-help@tomcat.apache.org
>>>>
>>>
>>> ---------------------------------------------------------------------
>>> To unsubscribe, e-mail: users-unsubscribe@tomcat.apache.org
>>> For additional commands, e-mail: users-help@tomcat.apache.org
>>>
>>
>> ---------------------------------------------------------------------
>> To unsubscribe, e-mail: users-unsubscribe@tomcat.apache.org
>> For additional commands, e-mail: users-help@tomcat.apache.org
>>

---------------------------------------------------------------------
To unsubscribe, e-mail: users-unsubscribe@tomcat.apache.org
For additional commands, e-mail: users-help@tomcat.apache.org


Re:

Posted by Greg Huber <gr...@gmail.com>.
 >> The "i.e. everything NOT under WEB-INF/lib or WEB-INF/classes" is 
irrespective of which resource collection it is in. So JARs >> from 
PostResources won't be cached.

OK sorry missed the not.

Although I am mapping in post resources to a maven project which has a 
resources folder that ends up in the target/classes folder.

<PostResources
base="/home/devuser/git/mavenproject/myplugin/target/classes"
className="org.apache.catalina.webresources.DirResourceSet"
             webAppMount="/WEB-INF/classes" />

ie

/home/devuser/git/mavenproject/myplugin/src/main/resources/template/..

WARNING: Unable to add the resource at 
[/WEB-INF/classes/template/js/jstree/jquery.hotkeys.min.js] to the cache 
for web application [/myapp] because there was insufficient free space 
available after evicting expired cache entries - consider increasing the 
maximum size of the cache
Nov 07, 2023 6:22:52 AM org.apache.catalina.webresources.Cache getResource


Checking the logs, it only complains about /WEB-INF/classes/

I will test and calculate the size of all the target/classes folder 
which are mapped under /WEB-INF/classes in post resources.

Cheers Greg

On 06/11/2023 12:19, Mark Thomas wrote:

> On 06/11/2023 10:57, Greg Huber wrote:
>>  >> The maximum useful size will be the total size of static 
>> resources (i.e. everything NOT under WEB-INF/lib or WEB-INF/classes).
>>
>> Since I have nothing in either of these, its all mapped in the 
>> PostResources,  I can just calculate the size of the jars, and add a 
>> bit for luck.  (ie 85mb +5mb).🙂
>
> The "i.e. everything NOT under WEB-INF/lib or WEB-INF/classes" is 
> irrespective of which resource collection it is in. So JARs from 
> PostResources won't be cached.
>
> Mark
>
>
>>
>> Thanks
>>
>> On 06/11/2023 09:43, Mark Thomas wrote:
>>> On 05/11/2023 17:23, Greg Huber wrote:
>>>> Thanks Mark and Chris.
>>>>
>>>>>> <PostResources
>>>>>> base="/home/devuser/git/myproject/target/classes"
>>>>>> className="org.apache.catalina.webresources.DirResourceSet"
>>>>>>               webAppMount="/WEB-INF/classes" />
>>>>
>>>> I have not noticed any slowness yet.
>>>>
>>>> There are alot of jars (approx 160), but the target/classes folder 
>>>> are my
>>>> app's classes that I am working on.  These can change (ie not 
>>>> static), so
>>>> may be better to switch it off.
>>>>
>>>> Is there anyway to calculate the size needed for the cache setting?
>>>
>>> The maximum useful size will be the total size of static resources 
>>> (i.e. everything NOT under WEB-INF/lib or WEB-INF/classes).
>>>
>>> The right size is going to be a trade-off between the cost of the 
>>> memory for the cache and the benefits the cache brings. Those 
>>> benefits are going to be application (and hardware) dependent.
>>>
>>> Mark
>>>
>>>
>>>>
>>>> Thanks Greg
>>>>
>>>>
>>>> On Sun, 5 Nov 2023 at 15:31, Christopher Schultz <
>>>> chris@christopherschultz.net> wrote:
>>>>
>>>>> Greg and Mark,
>>>>>
>>>>> On 11/5/23 09:31, Mark Thomas wrote:
>>>>>> On 05/11/2023 10:18, Greg Huber wrote:
>>>>>>> OK thanks, the docs mention "static resource cache" but I could not
>>>>>>> find info on what it actually is.
>>>>>>
>>>>>> It caches the content of static resources in memory and uses that 
>>>>>> rather
>>>>>> than accessing disk.
>>>>>>
>>>>>>> I am loading maven jars and /target/classes.
>>>>>>>
>>>>>>> eg:
>>>>>>>
>>>>>>> <PostResources
>>>>>>> base="/home/devuser/git/myproject/tools/META-INF"
>>>>>>> className="org.apache.catalina.webresources.DirResourceSet"
>>>>>>>               webAppMount="/WEB-INF/classes/META-INF" />
>>>>>>>
>>>>>>> <PostResources
>>>>>>> base="/home/devuser/git/myproject/target/classes"
>>>>>>> className="org.apache.catalina.webresources.DirResourceSet"
>>>>>>>               webAppMount="/WEB-INF/classes" />
>>>>>>>
>>>>>>> <PostResources
>>>>>>>
>>>>> base="/home/devuser/.m2/repository/commons-logging/commons-logging/1.2/commons-logging-1.2.jar" 
>>>>>
>>>>>>> className="org.apache.catalina.webresources.FileResourceSet"
>>>>>>> webAppMount="/WEB-INF/lib/commons-logging-1.2.jar" />
>>>>>>>
>>>>>>>
>>>>>>> As its purely for development guess it makes no difference?
>>>>>>
>>>>>> I doubt you'll notice if you disable it.
>>>>>
>>>>> +1
>>>>>
>>>>> Since you are using JAR files, the caching won't matter once the 
>>>>> classes
>>>>> themselves are loaded-into memory. So you may observe some slowness
>>>>> early in the lifetime of the web application after deployment, but at
>>>>> long as your code, etc. isn't trying to re-scan JAR files all the 
>>>>> time,
>>>>> etc. then you should be fine.
>>>>>
>>>>> -chris
>>>>>
>>>>>>> On 05/11/2023 10:02, Mark Thomas wrote:
>>>>>>>> On 04/11/2023 11:03, Greg Huber wrote:
>>>>>>>>> Hello,
>>>>>>>>>
>>>>>>>>> I am using the <Resources> and <PostResources> to run tomcat for
>>>>>>>>> debugging my app (and it is pretty awesome).  I am getting the 
>>>>>>>>> cache
>>>>>>>>> warning limit, as it is 10mb, what effect would it have if I 
>>>>>>>>> turned
>>>>>>>>> off the cache ie cachingAllowed="false" rather than having to
>>>>>>>>> increase the limit all the time?
>>>>>>>>
>>>>>>>> This is one of those "it depends" questions. There are lots of
>>>>>>>> factors that will influence how effective the cache is. You 
>>>>>>>> could try
>>>>>>>> and reason what the impact would be but you will likely get a more
>>>>>>>> accurate answer, faster by just trying it and measuring the 
>>>>>>>> impact.
>>>>>>>>
>>>>>>>> Mark
>>>>>>>>
>>>>>>>> --------------------------------------------------------------------- 
>>>>>>>>
>>>>>>>> To unsubscribe, e-mail: users-unsubscribe@tomcat.apache.org
>>>>>>>> For additional commands, e-mail: users-help@tomcat.apache.org
>>>>>>>>
>>>>>>
>>>>>> --------------------------------------------------------------------- 
>>>>>>
>>>>>> To unsubscribe, e-mail: users-unsubscribe@tomcat.apache.org
>>>>>> For additional commands, e-mail: users-help@tomcat.apache.org
>>>>>>
>>>>>
>>>>> ---------------------------------------------------------------------
>>>>> To unsubscribe, e-mail: users-unsubscribe@tomcat.apache.org
>>>>> For additional commands, e-mail: users-help@tomcat.apache.org
>>>>>
>>>>>
>>>>
>>>
>>> ---------------------------------------------------------------------
>>> To unsubscribe, e-mail: users-unsubscribe@tomcat.apache.org
>>> For additional commands, e-mail: users-help@tomcat.apache.org
>>>
>>
>> ---------------------------------------------------------------------
>> To unsubscribe, e-mail: users-unsubscribe@tomcat.apache.org
>> For additional commands, e-mail: users-help@tomcat.apache.org
>>
>
> ---------------------------------------------------------------------
> To unsubscribe, e-mail: users-unsubscribe@tomcat.apache.org
> For additional commands, e-mail: users-help@tomcat.apache.org
>

Re:

Posted by Mark Thomas <ma...@apache.org>.
On 06/11/2023 10:57, Greg Huber wrote:
>  >> The maximum useful size will be the total size of static resources 
> (i.e. everything NOT under WEB-INF/lib or WEB-INF/classes).
> 
> Since I have nothing in either of these, its all mapped in the 
> PostResources,  I can just calculate the size of the jars, and add a bit 
> for luck.  (ie 85mb +5mb).🙂

The "i.e. everything NOT under WEB-INF/lib or WEB-INF/classes" is 
irrespective of which resource collection it is in. So JARs from 
PostResources won't be cached.

Mark


> 
> Thanks
> 
> On 06/11/2023 09:43, Mark Thomas wrote:
>> On 05/11/2023 17:23, Greg Huber wrote:
>>> Thanks Mark and Chris.
>>>
>>>>> <PostResources
>>>>> base="/home/devuser/git/myproject/target/classes"
>>>>> className="org.apache.catalina.webresources.DirResourceSet"
>>>>>               webAppMount="/WEB-INF/classes" />
>>>
>>> I have not noticed any slowness yet.
>>>
>>> There are alot of jars (approx 160), but the target/classes folder 
>>> are my
>>> app's classes that I am working on.  These can change (ie not 
>>> static), so
>>> may be better to switch it off.
>>>
>>> Is there anyway to calculate the size needed for the cache setting?
>>
>> The maximum useful size will be the total size of static resources 
>> (i.e. everything NOT under WEB-INF/lib or WEB-INF/classes).
>>
>> The right size is going to be a trade-off between the cost of the 
>> memory for the cache and the benefits the cache brings. Those benefits 
>> are going to be application (and hardware) dependent.
>>
>> Mark
>>
>>
>>>
>>> Thanks Greg
>>>
>>>
>>> On Sun, 5 Nov 2023 at 15:31, Christopher Schultz <
>>> chris@christopherschultz.net> wrote:
>>>
>>>> Greg and Mark,
>>>>
>>>> On 11/5/23 09:31, Mark Thomas wrote:
>>>>> On 05/11/2023 10:18, Greg Huber wrote:
>>>>>> OK thanks, the docs mention "static resource cache" but I could not
>>>>>> find info on what it actually is.
>>>>>
>>>>> It caches the content of static resources in memory and uses that 
>>>>> rather
>>>>> than accessing disk.
>>>>>
>>>>>> I am loading maven jars and /target/classes.
>>>>>>
>>>>>> eg:
>>>>>>
>>>>>> <PostResources
>>>>>> base="/home/devuser/git/myproject/tools/META-INF"
>>>>>> className="org.apache.catalina.webresources.DirResourceSet"
>>>>>>               webAppMount="/WEB-INF/classes/META-INF" />
>>>>>>
>>>>>> <PostResources
>>>>>> base="/home/devuser/git/myproject/target/classes"
>>>>>> className="org.apache.catalina.webresources.DirResourceSet"
>>>>>>               webAppMount="/WEB-INF/classes" />
>>>>>>
>>>>>> <PostResources
>>>>>>
>>>> base="/home/devuser/.m2/repository/commons-logging/commons-logging/1.2/commons-logging-1.2.jar"
>>>>>> className="org.apache.catalina.webresources.FileResourceSet"
>>>>>> webAppMount="/WEB-INF/lib/commons-logging-1.2.jar" />
>>>>>>
>>>>>>
>>>>>> As its purely for development guess it makes no difference?
>>>>>
>>>>> I doubt you'll notice if you disable it.
>>>>
>>>> +1
>>>>
>>>> Since you are using JAR files, the caching won't matter once the 
>>>> classes
>>>> themselves are loaded-into memory. So you may observe some slowness
>>>> early in the lifetime of the web application after deployment, but at
>>>> long as your code, etc. isn't trying to re-scan JAR files all the time,
>>>> etc. then you should be fine.
>>>>
>>>> -chris
>>>>
>>>>>> On 05/11/2023 10:02, Mark Thomas wrote:
>>>>>>> On 04/11/2023 11:03, Greg Huber wrote:
>>>>>>>> Hello,
>>>>>>>>
>>>>>>>> I am using the <Resources> and <PostResources> to run tomcat for
>>>>>>>> debugging my app (and it is pretty awesome).  I am getting the 
>>>>>>>> cache
>>>>>>>> warning limit, as it is 10mb, what effect would it have if I turned
>>>>>>>> off the cache ie cachingAllowed="false" rather than having to
>>>>>>>> increase the limit all the time?
>>>>>>>
>>>>>>> This is one of those "it depends" questions. There are lots of
>>>>>>> factors that will influence how effective the cache is. You could 
>>>>>>> try
>>>>>>> and reason what the impact would be but you will likely get a more
>>>>>>> accurate answer, faster by just trying it and measuring the impact.
>>>>>>>
>>>>>>> Mark
>>>>>>>
>>>>>>> ---------------------------------------------------------------------
>>>>>>> To unsubscribe, e-mail: users-unsubscribe@tomcat.apache.org
>>>>>>> For additional commands, e-mail: users-help@tomcat.apache.org
>>>>>>>
>>>>>
>>>>> ---------------------------------------------------------------------
>>>>> To unsubscribe, e-mail: users-unsubscribe@tomcat.apache.org
>>>>> For additional commands, e-mail: users-help@tomcat.apache.org
>>>>>
>>>>
>>>> ---------------------------------------------------------------------
>>>> To unsubscribe, e-mail: users-unsubscribe@tomcat.apache.org
>>>> For additional commands, e-mail: users-help@tomcat.apache.org
>>>>
>>>>
>>>
>>
>> ---------------------------------------------------------------------
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Re:

Posted by Greg Huber <gr...@gmail.com>.
 >> The maximum useful size will be the total size of static resources 
(i.e. everything NOT under WEB-INF/lib or WEB-INF/classes).

Since I have nothing in either of these, its all mapped in the 
PostResources,  I can just calculate the size of the jars, and add a bit 
for luck.  (ie 85mb +5mb).🙂

Thanks

On 06/11/2023 09:43, Mark Thomas wrote:
> On 05/11/2023 17:23, Greg Huber wrote:
>> Thanks Mark and Chris.
>>
>>>> <PostResources
>>>> base="/home/devuser/git/myproject/target/classes"
>>>> className="org.apache.catalina.webresources.DirResourceSet"
>>>>               webAppMount="/WEB-INF/classes" />
>>
>> I have not noticed any slowness yet.
>>
>> There are alot of jars (approx 160), but the target/classes folder 
>> are my
>> app's classes that I am working on.  These can change (ie not 
>> static), so
>> may be better to switch it off.
>>
>> Is there anyway to calculate the size needed for the cache setting?
>
> The maximum useful size will be the total size of static resources 
> (i.e. everything NOT under WEB-INF/lib or WEB-INF/classes).
>
> The right size is going to be a trade-off between the cost of the 
> memory for the cache and the benefits the cache brings. Those benefits 
> are going to be application (and hardware) dependent.
>
> Mark
>
>
>>
>> Thanks Greg
>>
>>
>> On Sun, 5 Nov 2023 at 15:31, Christopher Schultz <
>> chris@christopherschultz.net> wrote:
>>
>>> Greg and Mark,
>>>
>>> On 11/5/23 09:31, Mark Thomas wrote:
>>>> On 05/11/2023 10:18, Greg Huber wrote:
>>>>> OK thanks, the docs mention "static resource cache" but I could not
>>>>> find info on what it actually is.
>>>>
>>>> It caches the content of static resources in memory and uses that 
>>>> rather
>>>> than accessing disk.
>>>>
>>>>> I am loading maven jars and /target/classes.
>>>>>
>>>>> eg:
>>>>>
>>>>> <PostResources
>>>>> base="/home/devuser/git/myproject/tools/META-INF"
>>>>> className="org.apache.catalina.webresources.DirResourceSet"
>>>>>               webAppMount="/WEB-INF/classes/META-INF" />
>>>>>
>>>>> <PostResources
>>>>> base="/home/devuser/git/myproject/target/classes"
>>>>> className="org.apache.catalina.webresources.DirResourceSet"
>>>>>               webAppMount="/WEB-INF/classes" />
>>>>>
>>>>> <PostResources
>>>>>
>>> base="/home/devuser/.m2/repository/commons-logging/commons-logging/1.2/commons-logging-1.2.jar" 
>>>
>>>>> className="org.apache.catalina.webresources.FileResourceSet"
>>>>> webAppMount="/WEB-INF/lib/commons-logging-1.2.jar" />
>>>>>
>>>>>
>>>>> As its purely for development guess it makes no difference?
>>>>
>>>> I doubt you'll notice if you disable it.
>>>
>>> +1
>>>
>>> Since you are using JAR files, the caching won't matter once the 
>>> classes
>>> themselves are loaded-into memory. So you may observe some slowness
>>> early in the lifetime of the web application after deployment, but at
>>> long as your code, etc. isn't trying to re-scan JAR files all the time,
>>> etc. then you should be fine.
>>>
>>> -chris
>>>
>>>>> On 05/11/2023 10:02, Mark Thomas wrote:
>>>>>> On 04/11/2023 11:03, Greg Huber wrote:
>>>>>>> Hello,
>>>>>>>
>>>>>>> I am using the <Resources> and <PostResources> to run tomcat for
>>>>>>> debugging my app (and it is pretty awesome).  I am getting the 
>>>>>>> cache
>>>>>>> warning limit, as it is 10mb, what effect would it have if I turned
>>>>>>> off the cache ie cachingAllowed="false" rather than having to
>>>>>>> increase the limit all the time?
>>>>>>
>>>>>> This is one of those "it depends" questions. There are lots of
>>>>>> factors that will influence how effective the cache is. You could 
>>>>>> try
>>>>>> and reason what the impact would be but you will likely get a more
>>>>>> accurate answer, faster by just trying it and measuring the impact.
>>>>>>
>>>>>> Mark
>>>>>>
>>>>>> --------------------------------------------------------------------- 
>>>>>>
>>>>>> To unsubscribe, e-mail: users-unsubscribe@tomcat.apache.org
>>>>>> For additional commands, e-mail: users-help@tomcat.apache.org
>>>>>>
>>>>
>>>> ---------------------------------------------------------------------
>>>> To unsubscribe, e-mail: users-unsubscribe@tomcat.apache.org
>>>> For additional commands, e-mail: users-help@tomcat.apache.org
>>>>
>>>
>>> ---------------------------------------------------------------------
>>> To unsubscribe, e-mail: users-unsubscribe@tomcat.apache.org
>>> For additional commands, e-mail: users-help@tomcat.apache.org
>>>
>>>
>>
>
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Re:

Posted by Suvendu Sekhar Mondal <su...@gmail.com>.
On Mon, Nov 6, 2023 at 3:15 PM Mark Thomas <ma...@apache.org> wrote:
>
> On 05/11/2023 17:23, Greg Huber wrote:
> > Thanks Mark and Chris.
> >
> >>> <PostResources
> >>>               base="/home/devuser/git/myproject/target/classes"
> >>> className="org.apache.catalina.webresources.DirResourceSet"
> >>>               webAppMount="/WEB-INF/classes" />
> >
> > I have not noticed any slowness yet.
> >
> > There are alot of jars (approx 160), but the target/classes folder are my
> > app's classes that I am working on.  These can change (ie not static), so
> > may be better to switch it off.
> >
> > Is there anyway to calculate the size needed for the cache setting?
>
> The maximum useful size will be the total size of static resources (i.e.
> everything NOT under WEB-INF/lib or WEB-INF/classes).
>
> The right size is going to be a trade-off between the cost of the memory
> for the cache and the benefits the cache brings. Those benefits are
> going to be application (and hardware) dependent.
>
> Mark

+1

You can also explore the combination of cacheTtl and cache size. By
default, TTL is 5 sec. If the cache is not full, a longer TTL means
better performance BUT if cache is getting filled up because of longer
TTL then tomcat will evict elements even before TTL elapsed. Again,
it's a bit tricky.

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Re:

Posted by Mark Thomas <ma...@apache.org>.
On 05/11/2023 17:23, Greg Huber wrote:
> Thanks Mark and Chris.
> 
>>> <PostResources
>>>               base="/home/devuser/git/myproject/target/classes"
>>> className="org.apache.catalina.webresources.DirResourceSet"
>>>               webAppMount="/WEB-INF/classes" />
> 
> I have not noticed any slowness yet.
> 
> There are alot of jars (approx 160), but the target/classes folder are my
> app's classes that I am working on.  These can change (ie not static), so
> may be better to switch it off.
> 
> Is there anyway to calculate the size needed for the cache setting?

The maximum useful size will be the total size of static resources (i.e. 
everything NOT under WEB-INF/lib or WEB-INF/classes).

The right size is going to be a trade-off between the cost of the memory 
for the cache and the benefits the cache brings. Those benefits are 
going to be application (and hardware) dependent.

Mark


> 
> Thanks Greg
> 
> 
> On Sun, 5 Nov 2023 at 15:31, Christopher Schultz <
> chris@christopherschultz.net> wrote:
> 
>> Greg and Mark,
>>
>> On 11/5/23 09:31, Mark Thomas wrote:
>>> On 05/11/2023 10:18, Greg Huber wrote:
>>>> OK thanks, the docs mention "static resource cache" but I could not
>>>> find info on what it actually is.
>>>
>>> It caches the content of static resources in memory and uses that rather
>>> than accessing disk.
>>>
>>>> I am loading maven jars and /target/classes.
>>>>
>>>> eg:
>>>>
>>>> <PostResources
>>>>               base="/home/devuser/git/myproject/tools/META-INF"
>>>> className="org.apache.catalina.webresources.DirResourceSet"
>>>>               webAppMount="/WEB-INF/classes/META-INF" />
>>>>
>>>> <PostResources
>>>>               base="/home/devuser/git/myproject/target/classes"
>>>> className="org.apache.catalina.webresources.DirResourceSet"
>>>>               webAppMount="/WEB-INF/classes" />
>>>>
>>>> <PostResources
>>>>
>> base="/home/devuser/.m2/repository/commons-logging/commons-logging/1.2/commons-logging-1.2.jar"
>>>> className="org.apache.catalina.webresources.FileResourceSet"
>>>>               webAppMount="/WEB-INF/lib/commons-logging-1.2.jar" />
>>>>
>>>>
>>>> As its purely for development guess it makes no difference?
>>>
>>> I doubt you'll notice if you disable it.
>>
>> +1
>>
>> Since you are using JAR files, the caching won't matter once the classes
>> themselves are loaded-into memory. So you may observe some slowness
>> early in the lifetime of the web application after deployment, but at
>> long as your code, etc. isn't trying to re-scan JAR files all the time,
>> etc. then you should be fine.
>>
>> -chris
>>
>>>> On 05/11/2023 10:02, Mark Thomas wrote:
>>>>> On 04/11/2023 11:03, Greg Huber wrote:
>>>>>> Hello,
>>>>>>
>>>>>> I am using the <Resources> and <PostResources> to run tomcat for
>>>>>> debugging my app (and it is pretty awesome).  I am getting the cache
>>>>>> warning limit, as it is 10mb, what effect would it have if I turned
>>>>>> off the cache ie cachingAllowed="false" rather than having to
>>>>>> increase the limit all the time?
>>>>>
>>>>> This is one of those "it depends" questions. There are lots of
>>>>> factors that will influence how effective the cache is. You could try
>>>>> and reason what the impact would be but you will likely get a more
>>>>> accurate answer, faster by just trying it and measuring the impact.
>>>>>
>>>>> Mark
>>>>>
>>>>> ---------------------------------------------------------------------
>>>>> To unsubscribe, e-mail: users-unsubscribe@tomcat.apache.org
>>>>> For additional commands, e-mail: users-help@tomcat.apache.org
>>>>>
>>>
>>> ---------------------------------------------------------------------
>>> To unsubscribe, e-mail: users-unsubscribe@tomcat.apache.org
>>> For additional commands, e-mail: users-help@tomcat.apache.org
>>>
>>
>> ---------------------------------------------------------------------
>> To unsubscribe, e-mail: users-unsubscribe@tomcat.apache.org
>> For additional commands, e-mail: users-help@tomcat.apache.org
>>
>>
> 

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Re:

Posted by Greg Huber <gr...@gmail.com>.
Thanks Mark and Chris.

>> <PostResources
>>              base="/home/devuser/git/myproject/target/classes"
>> className="org.apache.catalina.webresources.DirResourceSet"
>>              webAppMount="/WEB-INF/classes" />

I have not noticed any slowness yet.

There are alot of jars (approx 160), but the target/classes folder are my
app's classes that I am working on.  These can change (ie not static), so
may be better to switch it off.

Is there anyway to calculate the size needed for the cache setting?

Thanks Greg


On Sun, 5 Nov 2023 at 15:31, Christopher Schultz <
chris@christopherschultz.net> wrote:

> Greg and Mark,
>
> On 11/5/23 09:31, Mark Thomas wrote:
> > On 05/11/2023 10:18, Greg Huber wrote:
> >> OK thanks, the docs mention "static resource cache" but I could not
> >> find info on what it actually is.
> >
> > It caches the content of static resources in memory and uses that rather
> > than accessing disk.
> >
> >> I am loading maven jars and /target/classes.
> >>
> >> eg:
> >>
> >> <PostResources
> >>              base="/home/devuser/git/myproject/tools/META-INF"
> >> className="org.apache.catalina.webresources.DirResourceSet"
> >>              webAppMount="/WEB-INF/classes/META-INF" />
> >>
> >> <PostResources
> >>              base="/home/devuser/git/myproject/target/classes"
> >> className="org.apache.catalina.webresources.DirResourceSet"
> >>              webAppMount="/WEB-INF/classes" />
> >>
> >> <PostResources
> >>
> base="/home/devuser/.m2/repository/commons-logging/commons-logging/1.2/commons-logging-1.2.jar"
> >> className="org.apache.catalina.webresources.FileResourceSet"
> >>              webAppMount="/WEB-INF/lib/commons-logging-1.2.jar" />
> >>
> >>
> >> As its purely for development guess it makes no difference?
> >
> > I doubt you'll notice if you disable it.
>
> +1
>
> Since you are using JAR files, the caching won't matter once the classes
> themselves are loaded-into memory. So you may observe some slowness
> early in the lifetime of the web application after deployment, but at
> long as your code, etc. isn't trying to re-scan JAR files all the time,
> etc. then you should be fine.
>
> -chris
>
> >> On 05/11/2023 10:02, Mark Thomas wrote:
> >>> On 04/11/2023 11:03, Greg Huber wrote:
> >>>> Hello,
> >>>>
> >>>> I am using the <Resources> and <PostResources> to run tomcat for
> >>>> debugging my app (and it is pretty awesome).  I am getting the cache
> >>>> warning limit, as it is 10mb, what effect would it have if I turned
> >>>> off the cache ie cachingAllowed="false" rather than having to
> >>>> increase the limit all the time?
> >>>
> >>> This is one of those "it depends" questions. There are lots of
> >>> factors that will influence how effective the cache is. You could try
> >>> and reason what the impact would be but you will likely get a more
> >>> accurate answer, faster by just trying it and measuring the impact.
> >>>
> >>> Mark
> >>>
> >>> ---------------------------------------------------------------------
> >>> To unsubscribe, e-mail: users-unsubscribe@tomcat.apache.org
> >>> For additional commands, e-mail: users-help@tomcat.apache.org
> >>>
> >
> > ---------------------------------------------------------------------
> > To unsubscribe, e-mail: users-unsubscribe@tomcat.apache.org
> > For additional commands, e-mail: users-help@tomcat.apache.org
> >
>
> ---------------------------------------------------------------------
> To unsubscribe, e-mail: users-unsubscribe@tomcat.apache.org
> For additional commands, e-mail: users-help@tomcat.apache.org
>
>

Re:

Posted by Christopher Schultz <ch...@christopherschultz.net>.
Greg and Mark,

On 11/5/23 09:31, Mark Thomas wrote:
> On 05/11/2023 10:18, Greg Huber wrote:
>> OK thanks, the docs mention "static resource cache" but I could not 
>> find info on what it actually is.
> 
> It caches the content of static resources in memory and uses that rather 
> than accessing disk.
> 
>> I am loading maven jars and /target/classes.
>>
>> eg:
>>
>> <PostResources
>>              base="/home/devuser/git/myproject/tools/META-INF"
>> className="org.apache.catalina.webresources.DirResourceSet"
>>              webAppMount="/WEB-INF/classes/META-INF" />
>>
>> <PostResources
>>              base="/home/devuser/git/myproject/target/classes"
>> className="org.apache.catalina.webresources.DirResourceSet"
>>              webAppMount="/WEB-INF/classes" />
>>
>> <PostResources
>> base="/home/devuser/.m2/repository/commons-logging/commons-logging/1.2/commons-logging-1.2.jar"
>> className="org.apache.catalina.webresources.FileResourceSet"
>>              webAppMount="/WEB-INF/lib/commons-logging-1.2.jar" />
>>
>>
>> As its purely for development guess it makes no difference?
> 
> I doubt you'll notice if you disable it.

+1

Since you are using JAR files, the caching won't matter once the classes 
themselves are loaded-into memory. So you may observe some slowness 
early in the lifetime of the web application after deployment, but at 
long as your code, etc. isn't trying to re-scan JAR files all the time, 
etc. then you should be fine.

-chris

>> On 05/11/2023 10:02, Mark Thomas wrote:
>>> On 04/11/2023 11:03, Greg Huber wrote:
>>>> Hello,
>>>>
>>>> I am using the <Resources> and <PostResources> to run tomcat for 
>>>> debugging my app (and it is pretty awesome).  I am getting the cache 
>>>> warning limit, as it is 10mb, what effect would it have if I turned 
>>>> off the cache ie cachingAllowed="false" rather than having to 
>>>> increase the limit all the time?
>>>
>>> This is one of those "it depends" questions. There are lots of 
>>> factors that will influence how effective the cache is. You could try 
>>> and reason what the impact would be but you will likely get a more 
>>> accurate answer, faster by just trying it and measuring the impact.
>>>
>>> Mark
>>>
>>> ---------------------------------------------------------------------
>>> To unsubscribe, e-mail: users-unsubscribe@tomcat.apache.org
>>> For additional commands, e-mail: users-help@tomcat.apache.org
>>>
> 
> ---------------------------------------------------------------------
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> 

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Re:

Posted by Mark Thomas <ma...@apache.org>.
On 05/11/2023 10:18, Greg Huber wrote:
> OK thanks, the docs mention "static resource cache" but I could not find 
> info on what it actually is.

It caches the content of static resources in memory and uses that rather 
than accessing disk.

> I am loading maven jars and /target/classes.
> 
> eg:
> 
> <PostResources
>              base="/home/devuser/git/myproject/tools/META-INF"
> className="org.apache.catalina.webresources.DirResourceSet"
>              webAppMount="/WEB-INF/classes/META-INF" />
> 
> <PostResources
>              base="/home/devuser/git/myproject/target/classes"
> className="org.apache.catalina.webresources.DirResourceSet"
>              webAppMount="/WEB-INF/classes" />
> 
> <PostResources
> base="/home/devuser/.m2/repository/commons-logging/commons-logging/1.2/commons-logging-1.2.jar"
> className="org.apache.catalina.webresources.FileResourceSet"
>              webAppMount="/WEB-INF/lib/commons-logging-1.2.jar" />
> 
> 
> As its purely for development guess it makes no difference?

I doubt you'll notice if you disable it.

Mark

> 
> Cheers Greg
> 
> On 05/11/2023 10:02, Mark Thomas wrote:
>> On 04/11/2023 11:03, Greg Huber wrote:
>>> Hello,
>>>
>>> I am using the <Resources> and <PostResources> to run tomcat for 
>>> debugging my app (and it is pretty awesome).  I am getting the cache 
>>> warning limit, as it is 10mb, what effect would it have if I turned 
>>> off the cache ie cachingAllowed="false" rather than having to 
>>> increase the limit all the time?
>>
>> This is one of those "it depends" questions. There are lots of factors 
>> that will influence how effective the cache is. You could try and 
>> reason what the impact would be but you will likely get a more 
>> accurate answer, faster by just trying it and measuring the impact.
>>
>> Mark
>>
>> ---------------------------------------------------------------------
>> To unsubscribe, e-mail: users-unsubscribe@tomcat.apache.org
>> For additional commands, e-mail: users-help@tomcat.apache.org
>>

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Re:

Posted by Greg Huber <gr...@gmail.com>.
OK thanks, the docs mention "static resource cache" but I could not find 
info on what it actually is.

I am loading maven jars and /target/classes.

eg:

<PostResources
             base="/home/devuser/git/myproject/tools/META-INF"
className="org.apache.catalina.webresources.DirResourceSet"
             webAppMount="/WEB-INF/classes/META-INF" />

<PostResources
             base="/home/devuser/git/myproject/target/classes"
className="org.apache.catalina.webresources.DirResourceSet"
             webAppMount="/WEB-INF/classes" />

<PostResources
base="/home/devuser/.m2/repository/commons-logging/commons-logging/1.2/commons-logging-1.2.jar"
className="org.apache.catalina.webresources.FileResourceSet"
             webAppMount="/WEB-INF/lib/commons-logging-1.2.jar" />


As its purely for development guess it makes no difference?

Cheers Greg

On 05/11/2023 10:02, Mark Thomas wrote:
> On 04/11/2023 11:03, Greg Huber wrote:
>> Hello,
>>
>> I am using the <Resources> and <PostResources> to run tomcat for 
>> debugging my app (and it is pretty awesome).  I am getting the cache 
>> warning limit, as it is 10mb, what effect would it have if I turned 
>> off the cache ie cachingAllowed="false" rather than having to 
>> increase the limit all the time?
>
> This is one of those "it depends" questions. There are lots of factors 
> that will influence how effective the cache is. You could try and 
> reason what the impact would be but you will likely get a more 
> accurate answer, faster by just trying it and measuring the impact.
>
> Mark
>
> ---------------------------------------------------------------------
> To unsubscribe, e-mail: users-unsubscribe@tomcat.apache.org
> For additional commands, e-mail: users-help@tomcat.apache.org
>

Re:

Posted by Mark Thomas <ma...@apache.org>.
On 04/11/2023 11:03, Greg Huber wrote:
> Hello,
> 
> I am using the <Resources> and <PostResources> to run tomcat for 
> debugging my app (and it is pretty awesome).  I am getting the cache 
> warning limit, as it is 10mb, what effect would it have if I turned off 
> the cache ie cachingAllowed="false" rather than having to increase the 
> limit all the time?

This is one of those "it depends" questions. There are lots of factors 
that will influence how effective the cache is. You could try and reason 
what the impact would be but you will likely get a more accurate answer, 
faster by just trying it and measuring the impact.

Mark

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