RE: File access error on Windows Server 2019 after upgrading to Tomcat 8.5.45

2020-06-10 Thread jonmcalexander 
Thank you!


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Asst Vice President

Middleware Product Engineering
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-Original Message-
From: Mark Thomas  
Sent: Wednesday, June 10, 2020 10:59 AM
To: users@tomcat.apache.org
Subject: Re: File access error on Windows Server 2019 after upgrading to Tomcat 
8.5.45

On 09/06/2020 17:22, jonmcalexan...@wellsfargo.com.INVALID wrote:
> Mark,
> 
> Was the change with 8.5.44 implemented when you run the service.bat file?

It should be. The change was made in Commons Daemon (the .exe files) so it 
should apply however you install the service.

Mark


> 
> Thanks,
> 
> 
> Dream * Excel * Explore * Inspire
> Jon McAlexander
> Asst Vice President
> 
> Middleware Product Engineering
> Enterprise CIO | Platform Services | Middleware | Infrastructure 
> Solutions
> 
> 8080 Cobblestone Rd | Urbandale, IA 50322
> MAC: F4469-010
> Tel 515-988-2508 | Cell 515-988-2508
> 
> jonmcalexan...@wellsfargo.com
> 
> 
> This message may contain confidential and/or privileged information. If you 
> are not the addressee or authorized to receive this for the addressee, you 
> must not use, copy, disclose, or take any action based on this message or any 
> information herein. If you have received this message in error, please advise 
> the sender immediately by reply e-mail and delete this message. Thank you for 
> your cooperation.
> 
> 
> -Original Message-
> From: Mark Thomas 
> Sent: Tuesday, June 9, 2020 8:46 AM
> To: users@tomcat.apache.org
> Subject: Re: File access error on Windows Server 2019 after upgrading 
> to Tomcat 8.5.45
> 
> On 08/06/2020 22:54, BOSECKER Nancy wrote:
>> I've been tasked with upgrading Tomcat from 8.5.41, but have run into a 
>> problem that begins with release 8.5.45. Hopefully someone here can help.
> 
> What was the last version where this worked? 8.5.43? I ask as 8.5.44 was not 
> formally released.
> 
>> I have a servlet that tries to update a file that was previously written by 
>> a separate servlet. Prior to 8.5.45, this works as expected and the file is 
>> updated.
>>
>> In 8.5.45, I get the Java error: File not Found exception - Access is 
>> denied. The file exists and is readable, but must be being held onto by some 
>> unknown process. I've tried Windows process manager and resource manager, 
>> but neither of these can tell me what is holding the file handle. I can open 
>> the file in an editor with no error. I can also delete the file without any 
>> error.
>>
>> Note that the error occurs on Windows Server 2019. When I run the same code 
>> on Windows 10 there is no error.
> 
> This might be related to the user Tomcat is running under. As of 8.5.44 the 
> default user is LocalService rather than LocalSystem. LocalService has fewer 
> privileges.
> 
> Mark
> 
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Re: File access error on Windows Server 2019 after upgrading to Tomcat 8.5.45

2020-06-10 Thread Mark Thomas 
On 09/06/2020 17:22, jonmcalexan...@wellsfargo.com.INVALID wrote:
> Mark,
> 
> Was the change with 8.5.44 implemented when you run the service.bat file?

It should be. The change was made in Commons Daemon (the .exe files) so
it should apply however you install the service.

Mark


> 
> Thanks,
> 
> 
> Dream * Excel * Explore * Inspire
> Jon McAlexander
> Asst Vice President
> 
> Middleware Product Engineering
> Enterprise CIO | Platform Services | Middleware | Infrastructure Solutions
> 
> 8080 Cobblestone Rd | Urbandale, IA 50322
> MAC: F4469-010
> Tel 515-988-2508 | Cell 515-988-2508
> 
> jonmcalexan...@wellsfargo.com
> 
> 
> This message may contain confidential and/or privileged information. If you 
> are not the addressee or authorized to receive this for the addressee, you 
> must not use, copy, disclose, or take any action based on this message or any 
> information herein. If you have received this message in error, please advise 
> the sender immediately by reply e-mail and delete this message. Thank you for 
> your cooperation.
> 
> 
> -Original Message-
> From: Mark Thomas  
> Sent: Tuesday, June 9, 2020 8:46 AM
> To: users@tomcat.apache.org
> Subject: Re: File access error on Windows Server 2019 after upgrading to 
> Tomcat 8.5.45
> 
> On 08/06/2020 22:54, BOSECKER Nancy wrote:
>> I've been tasked with upgrading Tomcat from 8.5.41, but have run into a 
>> problem that begins with release 8.5.45. Hopefully someone here can help.
> 
> What was the last version where this worked? 8.5.43? I ask as 8.5.44 was not 
> formally released.
> 
>> I have a servlet that tries to update a file that was previously written by 
>> a separate servlet. Prior to 8.5.45, this works as expected and the file is 
>> updated.
>>
>> In 8.5.45, I get the Java error: File not Found exception - Access is 
>> denied. The file exists and is readable, but must be being held onto by some 
>> unknown process. I've tried Windows process manager and resource manager, 
>> but neither of these can tell me what is holding the file handle. I can open 
>> the file in an editor with no error. I can also delete the file without any 
>> error.
>>
>> Note that the error occurs on Windows Server 2019. When I run the same code 
>> on Windows 10 there is no error.
> 
> This might be related to the user Tomcat is running under. As of 8.5.44 the 
> default user is LocalService rather than LocalSystem. LocalService has fewer 
> privileges.
> 
> Mark
> 
> -
> To unsubscribe, e-mail: users-unsubscr...@tomcat.apache.org
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> 
> 
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Re: File access error on Windows Server 2019 after upgrading to Tomcat 8.5.45

2020-06-09 Thread Bill Stewart 
On Tue, Jun 9, 2020 at 9:56 AM calder wrote:

> A bit off-topic, but wanted to jump in and clear this up, as the Java
> error messages are somewhat misleading.

Thanks for the clarification.

Regards

Bill

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RE: File access error on Windows Server 2019 after upgrading to Tomcat 8.5.45

2020-06-09 Thread jonmcalexander 
Mark,

Was the change with 8.5.44 implemented when you run the service.bat file?

Thanks,


Dream * Excel * Explore * Inspire
Jon McAlexander
Asst Vice President

Middleware Product Engineering
Enterprise CIO | Platform Services | Middleware | Infrastructure Solutions

8080 Cobblestone Rd | Urbandale, IA 50322
MAC: F4469-010
Tel 515-988-2508 | Cell 515-988-2508

jonmcalexan...@wellsfargo.com


This message may contain confidential and/or privileged information. If you are 
not the addressee or authorized to receive this for the addressee, you must not 
use, copy, disclose, or take any action based on this message or any 
information herein. If you have received this message in error, please advise 
the sender immediately by reply e-mail and delete this message. Thank you for 
your cooperation.


-Original Message-
From: Mark Thomas  
Sent: Tuesday, June 9, 2020 8:46 AM
To: users@tomcat.apache.org
Subject: Re: File access error on Windows Server 2019 after upgrading to Tomcat 
8.5.45

On 08/06/2020 22:54, BOSECKER Nancy wrote:
> I've been tasked with upgrading Tomcat from 8.5.41, but have run into a 
> problem that begins with release 8.5.45. Hopefully someone here can help.

What was the last version where this worked? 8.5.43? I ask as 8.5.44 was not 
formally released.

> I have a servlet that tries to update a file that was previously written by a 
> separate servlet. Prior to 8.5.45, this works as expected and the file is 
> updated.
> 
> In 8.5.45, I get the Java error: File not Found exception - Access is denied. 
> The file exists and is readable, but must be being held onto by some unknown 
> process. I've tried Windows process manager and resource manager, but neither 
> of these can tell me what is holding the file handle. I can open the file in 
> an editor with no error. I can also delete the file without any error.
> 
> Note that the error occurs on Windows Server 2019. When I run the same code 
> on Windows 10 there is no error.

This might be related to the user Tomcat is running under. As of 8.5.44 the 
default user is LocalService rather than LocalSystem. LocalService has fewer 
privileges.

Mark

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RE: File access error on Windows Server 2019 after upgrading to Tomcat 8.5.45

2020-06-09 Thread BOSECKER Nancy 
> I've been tasked with upgrading Tomcat from 8.5.41, but have run into a 
> problem that begins with release 8.5.45. Hopefully someone here can help.
>>What was the last version where this worked? 8.5.43? I ask as 8.5.44 was not 
>>formally released.

8.5.43 worked, 8.5.45 does not.

>>This might be related to the user Tomcat is running under. As of 8.5.44 the 
>>default user is LocalService rather than LocalSystem. LocalService has fewer 
>>privileges.

Great, I didn't realize this changed, and it seems likely to be my problem. 
Thank you very much!

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RE: File access error on Windows Server 2019 after upgrading to Tomcat 8.5.45

2020-06-09 Thread BOSECKER Nancy 

>> Also, "file not found" is not the same as "access denied". You should
>> post the exact error line(s) from your log.

>A bit off-topic, but wanted to jump in and clear this up, as the Java error 
>messages are somewhat misleading.
>If I write a class to open a read-only file with java.io.FileOutputStream, I 
>will see this stack trace

>calder@stimpy:~/bin> ./jdk180-221/bin/java AccessDenied
>java.io.FileNotFoundException: tester.txt (Permission denied)
at java.io.FileOutputStream.open0(Native Method) ...
>calder@stimpy:~/bin> ls -l tester.txt
>-r--r--r-- 1 calder users 0 Jun  9 10:12 tester.txt

>FileOutputStream ctors and methods throw the FileNotFoundException and the 
>more specific error [in this case] is "Permission denied".
>So yea, it's confusing.

>If you check the source code for FileNotFoundException, we even see a comment 
>related to this [quote] This exception will be thrown by the {@link 
>FileInputStream}, {@link  FileOutputStream}, and {@link RandomAccessFile} 
>constructors when a file  with the >specified pathname does not exist.  It 
>will also be thrown by these  constructors if the file does exist but for some 
>reason is inaccessible, for  example when an attempt is made to open a 
>read-only file for writing.
>[/quote]

I agree it is confusing. In my case, the error thrown from Java 'new 
FileOutputStream(file)' is:
java.io.FileNotFoundException:  (Access is denied)

Since the file exists and is readable (per Java checks), I assumed the 'for 
some reason is inaccessible' meant the file was opened somewhere else. But it 
seems it may actually be the default Tomcat user having less privileges.
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Re: File access error on Windows Server 2019 after upgrading to Tomcat 8.5.45

2020-06-09 Thread calder 
On Tue, Jun 9, 2020 at 8:08 AM Bill Stewart  wrote:
[ snip ]
> Also, "file not found" is not the same as "access denied". You should
> post the exact error line(s) from your log.

A bit off-topic, but wanted to jump in and clear this up, as the Java
error messages are somewhat misleading.
If I write a class to open a read-only file with
java.io.FileOutputStream, I will see this stack trace

calder@stimpy:~/bin> ./jdk180-221/bin/java AccessDenied
java.io.FileNotFoundException: tester.txt (Permission denied)
at java.io.FileOutputStream.open0(Native Method)
...
calder@stimpy:~/bin> ls -l tester.txt
-r--r--r-- 1 calder users 0 Jun  9 10:12 tester.txt

FileOutputStream ctors and methods throw the FileNotFoundException and
the more specific error [in this case] is "Permission denied".
So yea, it's confusing.

If you check the source code for FileNotFoundException, we even see a
comment related to this
[quote]
This exception will be thrown by the {@link FileInputStream}, {@link
 FileOutputStream}, and {@link RandomAccessFile} constructors when a file
 with the specified pathname does not exist.  It will also be thrown by these
 constructors if the file does exist but for some reason is inaccessible, for
 example when an attempt is made to open a read-only file for writing.
[/quote]

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Re: File access error on Windows Server 2019 after upgrading to Tomcat 8.5.45

2020-06-09 Thread Mark Thomas 
On 08/06/2020 22:54, BOSECKER Nancy wrote:
> I've been tasked with upgrading Tomcat from 8.5.41, but have run into a 
> problem that begins with release 8.5.45. Hopefully someone here can help.

What was the last version where this worked? 8.5.43? I ask as 8.5.44 was
not formally released.

> I have a servlet that tries to update a file that was previously written by a 
> separate servlet. Prior to 8.5.45, this works as expected and the file is 
> updated.
> 
> In 8.5.45, I get the Java error: File not Found exception - Access is denied. 
> The file exists and is readable, but must be being held onto by some unknown 
> process. I've tried Windows process manager and resource manager, but neither 
> of these can tell me what is holding the file handle. I can open the file in 
> an editor with no error. I can also delete the file without any error.
> 
> Note that the error occurs on Windows Server 2019. When I run the same code 
> on Windows 10 there is no error.

This might be related to the user Tomcat is running under. As of 8.5.44
the default user is LocalService rather than LocalSystem. LocalService
has fewer privileges.

Mark

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Re: File access error on Windows Server 2019 after upgrading to Tomcat 8.5.45

2020-06-09 Thread Bill Stewart 
On Mon, Jun 8, 2020 at 3:54 PM BOSECKER Nancy wrote:

> In 8.5.45, I get the Java error: File not Found exception -
> Access is denied. The file exists and is readable, but must be
> being held onto by some unknown process. I've tried Windows
> process manager and resource manager, but neither of these can
> tell me what is holding the file handle. I can open the file in
> an editor with no error. I can also delete the file without any
> error.

Your assumption that the file is being held open by an unknown process
may not be correct.

The ability to write/update/delete files is based on the account being
used to run Tomcat.

Also, "file not found" is not the same as "access denied". You should
post the exact error line(s) from your log.

Bill

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