[Pljava-dev] Problem with PLJava on production machine

Hello,

I am working with PLJava on my development machine fine (win 7).

But when I try to install a jar on the production machine:
select sqlj.install_jar('file:///tmp/tmengine.jar','tmengine',true)

I always get a java.lang.NullPointerException error

This happens for all jars, even the helloworld example.

Creating and executing this function works fine:

CREATE FUNCTION getsysprop(VARCHAR)
RETURNS VARCHAR
AS 'java.lang.System.getProperty'
LANGUAGE java;

SELECT getsysprop('user.home');

This executes correctly and gives me the right result.

Any idea what might be causing this?
Machine runs Centos 5 - 32bit
DB is postgres 8.4
JRE 1.6

Or any suggestions on how I can get more debug info?

Thanks,
Bart

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Hi Bart,

when it comes to strange errors with CentOS or RHEL my fist suggestion is to check whether SELinux is set to Enforce or not (use 'getenforce' to find out).
If it is set to 'Enforcing' I suggest you try it again after setting 'setenforce Permissive'. It probably will work afterwards, also check file permissions.

Regards,
Wolfgang

.........................................................................................................................................
WOLFGANG RIESE
ITE

HH, Raum 415
Tel.: +49 (0)40 42834-240
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> -----Urspr?ngliche Nachricht-----
> Von: pljava-dev-bounces at pgfoundry.org [mailto:pljava-dev-
> bounces at pgfoundry.org] Im Auftrag von bartdeman
> Gesendet: Freitag, 11. M?rz 2011 09:39
> An: pljava-dev at pgfoundry.org
> Betreff: [Pljava-dev] Problem with PLJava on production machine
>
> Hello,
>
> I am working with PLJava on my development machine fine (win 7).
>
> But when I try to install a jar on the production machine:
> select sqlj.install_jar('file:///tmp/tmengine.jar','tmengine',true)
>
> I always get a java.lang.NullPointerException error
>
> This happens for all jars, even the helloworld example.
>
> Creating and executing this function works fine:
>
> CREATE FUNCTION getsysprop(VARCHAR)
> RETURNS VARCHAR
> AS 'java.lang.System.getProperty'
> LANGUAGE java;
>
> SELECT getsysprop('user.home');
>
> This executes correctly and gives me the right result.
>
> Any idea what might be causing this?
> Machine runs Centos 5 - 32bit
> DB is postgres 8.4
> JRE 1.6
>
> Or any suggestions on how I can get more debug info?
>
> Thanks,
> Bart
>
>
>
>
>
>
>
> --
> View this message in context:
> http://postgresql.1045698.n5.nabble.com/Problem-with-PLJava-on-production-
> machine-tp3424689p3424689.html
> Sent from the PL/Java mailing list archive at Nabble.com.
> _______________________________________________
> Pljava-dev mailing list
> Pljava-dev at pgfoundry.org
> http://pgfoundry.org/mailman/listinfo/pljava-dev

On 03/11/11 1:10 AM, Riese Wolfgang wrote:
> Hi Bart,
>
> when it comes to strange errors with CentOS or RHEL my fist suggestion is to check whether SELinux is set to Enforce or not (use 'getenforce' to find out).
> If it is set to 'Enforcing' I suggest you try it again after setting 'setenforce Permissive'. It probably will work afterwards, also check file permissions.

I'd check file permissions FIRST. the POSTGRES process has to have
access to your jar files.

Hello,

Thanks for the quick answers already.

For the permissions: I checked that already and tried out several things:
chmod 777 of file and folder, and chown postgres/chgrp postgres for the jar
files.
But unfortunately the same error remains.

For selinux: this should be disabled:
getenforce returns 'Disabled'

Any more suggestions?

Thanks a lot,
Bart

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On 03/11/11 2:10 AM, bartdeman wrote:
> Hello,
>
> Thanks for the quick answers already.
>
> For the permissions: I checked that already and tried out several things:
> chmod 777 of file and folder, and chown postgres/chgrp postgres for the jar
> files.
> But unfortunately the same error remains.

are all folders above the folder containing this file o:rx ?

btw, it doesn't have to be and shouldn't be 777. 755 or 775 at most.

John R Pierce wrote:
>
>
>
> are all folders above the folder containing this file o:rx ?
>
>

yes they are.

Another thing I tried is installing the jar in a db on my dev machine, and
then dumping the db and restoring it on the production machine.
When executing any of the functions in the jar, I get the same
NullPointerException.

Can I somehow increase the verbosity of the output?

Thanks,
Bart

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i found some more detailed error logging, maybe that helps:

debijloke2 2011-03-11 14:20:33.257 CET DEBUG: JavaVM created
debijloke2 2011-03-11 14:20:33.257 CET DEBUG: Getting Backend class
pljava.jar
debijloke2 2011-03-11 14:20:33.326 CET DEBUG: Backend class was there
debijloke2 2011-03-11 14:20:33.507 CET DEBUG: 11 Mar 11 14:20:33
org.postgresql.pljava.internal.Backend Using SecurityManager for trusted
language
debijloke2 2011-03-11 14:20:33.528 CET DEBUG: className =
'org.postgresql.pljava.management.Commands', methodName = 'installJar',
parameters = 'null', returnType = 'null'
debijloke2 2011-03-11 14:20:33.528 CET DEBUG: 11 Mar 11 14:20:33
org.postgresql.pljava.sqlj.Loader Creating typeMappings for schema sqlj
debijloke2 2011-03-11 14:20:33.540 CET DEBUG: Loading class
org.postgresql.pljava.management.Commands
debijloke2 2011-03-11 14:20:33.541 CET DEBUG: Obtaining method
org.postgresql.pljava.management.Commands.installJar
(Ljava/lang/String;Ljava/lang/String;Z)V
java.lang.NullPointerException
at org.postgresql.pljava.internal.Tuple.getObject(Tuple.java:37)
at
org.postgresql.pljava.jdbc.SPIResultSet.getObjectValue(SPIResultSet.java:185)
at
org.postgresql.pljava.jdbc.ObjectResultSet.getNumber(ObjectResultSet.java:403)
at
org.postgresql.pljava.jdbc.ObjectResultSet.getInt(ObjectResultSet.java:152)
at
org.postgresql.pljava.management.Commands.getJarId(Commands.java:903)
at
org.postgresql.pljava.management.Commands.getJarId(Commands.java:935)
at
org.postgresql.pljava.management.Commands.installJar(Commands.java:977)
at
org.postgresql.pljava.management.Commands.installJar(Commands.java:534)
debijloke2 2011-03-11 14:20:33.544 CET ERROR:
java.lang.NullPointerException
debijloke2 2011-03-11 14:20:33.544 CET STATEMENT: select
sqlj.install_jar('file:///tmp/testZE.jar','test',false);

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ok, finally got it working!

it seems the binary from the download site did not work on my system. (i
used pljava-i686-pc-linux-gnu-pg8.4-1.4.2.tar.gz)

I have built my own binary from source, and that one works perfect.

thanks a lot for the help!

regards,
Bart

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Hi,

Sorry about the delayed reply.

On Sat, 12 Mar 2011 21:29:21 -0000, bartdeman
<bart.de.man at ticketmatic.com> wrote:

> ok, finally got it working!
>
> it seems the binary from the download site did not work on my system. (i
> used pljava-i686-pc-linux-gnu-pg8.4-1.4.2.tar.gz)
>
> I have built my own binary from source, and that one works perfect.

Thank you, that may actually be helpful. The official binaries are built
on Ubuntu (32bit) and Debian (64bit).

I'll see if I can get a hold of a RHEL/Centos system to test it myself in
the not too distant future.

--
Johann Oskarsson http://www.2ndquadrant.com/ |[]
PostgreSQL Development, 24x7 Support, Training and Services --+--
|
Blog: http://my.opera.com/myrkraverk/blog/

Sorry to intrude on your discussion...

Is the 64-bit verson of PL/Java for Windows 64-bit or for Postgres 64-bit.

I tried getting the 32-bit version of PL/Java to run on Windows 64-bit
with a 32-bit version of Postgres, but could not get that to work
because the loader kept trying to link the 32-bit DLLs against 64-bit
Windows libraries.

I need to be able to run PL/Java on both 32-bit Windows and 64-bit Windows.

Cheers, Eric

On 2011-04-15 4:31 PM, Johann 'Myrkraverk' Oskarsson wrote:
> Hi,
>
> Sorry about the delayed reply.
>
> On Sat, 12 Mar 2011 21:29:21 -0000, bartdeman
> <bart.de.man at ticketmatic.com> wrote:
>
>> ok, finally got it working!
>>
>> it seems the binary from the download site did not work on my system. (i
>> used pljava-i686-pc-linux-gnu-pg8.4-1.4.2.tar.gz)
>>
>> I have built my own binary from source, and that one works perfect.
>
> Thank you, that may actually be helpful. The official binaries are
> built on Ubuntu (32bit) and Debian (64bit).
>
> I'll see if I can get a hold of a RHEL/Centos system to test it myself
> in the not too distant future.
>
>

On Fri, 15 Apr 2011 23:41:12 -0000, Eric Kolotyluk
<eric.kolotyluk at gmail.com> wrote:

> Sorry to intrude on your discussion...
>
> Is the 64-bit verson of PL/Java for Windows 64-bit or for Postgres
> 64-bit.

When (if?) I build 64bit binaries, it will be for a 64bit Postgres server.

> I tried getting the 32-bit version of PL/Java to run on Windows 64-bit
> with a 32-bit version of Postgres, but could not get that to work
> because the loader kept trying to link the 32-bit DLLs against 64-bit
> Windows libraries.

Windows libraries? Are you sure it was not just a 64 bit JRE in your path
it was linking against?

Can you be explicit about which libraries?

> I need to be able to run PL/Java on both 32-bit Windows and 64-bit
> Windows.

Yes. Unfortunately, I do not have access to a machine capable of running
64bit Windows so I can't test it at the moment.

A question: Does it matter whether Windows binaries are distributed in a
tar.gz file or the traditional .zip? I'm only asking because the build
system makes a .tar.gz file.

--
Johann Oskarsson http://www.2ndquadrant.com/ |[]
PostgreSQL Development, 24x7 Support, Training and Services --+--
|
Blog: http://my.opera.com/myrkraverk/blog/

Below...

On 2011-04-15 4:52 PM, Johann 'Myrkraverk' Oskarsson wrote:
> On Fri, 15 Apr 2011 23:41:12 -0000, Eric Kolotyluk
> <eric.kolotyluk at gmail.com> wrote:
>
>> Sorry to intrude on your discussion...
>>
>> Is the 64-bit verson of PL/Java for Windows 64-bit or for Postgres
>> 64-bit.
>
> When (if?) I build 64bit binaries, it will be for a 64bit Postgres
> server.
>
>> I tried getting the 32-bit version of PL/Java to run on Windows
>> 64-bit with a 32-bit version of Postgres, but could not get that to
>> work because the loader kept trying to link the 32-bit DLLs against
>> 64-bit Windows libraries.
>
> Windows libraries? Are you sure it was not just a 64 bit JRE in your
> path it was linking against?
Well, I used a tool called PE Explorer to explore the PL/Java DLL, and
it showed that Windows was trying to link against 64 bit system libraries.

I do have both 64-bit and 32-bit Java on my machine, so I will try to
check for that next time.

>
> Can you be explicit about which libraries?
>
>> I need to be able to run PL/Java on both 32-bit Windows and 64-bit
>> Windows.
>
> Yes. Unfortunately, I do not have access to a machine capable of
> running 64bit Windows so I can't test it at the moment.
I have lots of machines running 64-bit windows if that helps :-)
>
>
> A question: Does it matter whether Windows binaries are distributed
> in a tar.gz file or the traditional .zip? I'm only asking because the
> build system makes a .tar.gz file.
>
I have 7-zip, which seems to be able to open most anything.

Cheers, Eric

I've got a 64 bit Windows 7 installation running 64 bit Postgres. I can confirm that the 32 bit PL/java doesn't load in that environment.

Regards

David JL Gradwell, M.A. (Cantab), F.B.C.S.
Chartered IT Professional
Head of Consulting
VocaLink
?
t: ?+44 (0)870 920 8516
m:+44 (0)7920 143 639
e: ?david.gradwell at vocalink.com
w: http://www.vocalink.com

-----Original Message-----
From: pljava-dev-bounces at pgfoundry.org [mailto:pljava-dev-bounces at pgfoundry.org] On Behalf Of Eric Kolotyluk
Sent: 16 April 2011 00:41
To: pljava-dev at pgfoundry.org
Subject: Re: [Pljava-dev] Problem with PLJava on production machine

Sorry to intrude on your discussion...

Is the 64-bit verson of PL/Java for Windows 64-bit or for Postgres 64-bit.

I tried getting the 32-bit version of PL/Java to run on Windows 64-bit
with a 32-bit version of Postgres, but could not get that to work
because the loader kept trying to link the 32-bit DLLs against 64-bit
Windows libraries.

I need to be able to run PL/Java on both 32-bit Windows and 64-bit Windows.

Cheers, Eric

On 2011-04-15 4:31 PM, Johann 'Myrkraverk' Oskarsson wrote:
> Hi,
>
> Sorry about the delayed reply.
>
> On Sat, 12 Mar 2011 21:29:21 -0000, bartdeman
> <bart.de.man at ticketmatic.com> wrote:
>
>> ok, finally got it working!
>>
>> it seems the binary from the download site did not work on my system. (i
>> used pljava-i686-pc-linux-gnu-pg8.4-1.4.2.tar.gz)
>>
>> I have built my own binary from source, and that one works perfect.
>
> Thank you, that may actually be helpful. The official binaries are
> built on Ubuntu (32bit) and Debian (64bit).
>
> I'll see if I can get a hold of a RHEL/Centos system to test it myself
> in the not too distant future.
>
>
_______________________________________________
Pljava-dev mailing list
Pljava-dev at pgfoundry.org
http://pgfoundry.org/mailman/listinfo/pljava-dev

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Hi David,

I don't understand the urge to load a 32-bit Java VM into a 64 bit process. Why would anyone like to do that? It doubt
that it will ever work. If you have a 64-bit Postgres, I'm fairly convinced you'll need a 64-bit PL/Java binary.

- thomas

On 2011-04-18 09:24, David Gradwell wrote:
> I've got a 64 bit Windows 7 installation running 64 bit Postgres. I can confirm that the 32 bit PL/java doesn't load in that environment.
>
> Regards
>
> David JL Gradwell, M.A. (Cantab), F.B.C.S.
> Chartered IT Professional
> Head of Consulting
> VocaLink
>
> t: +44 (0)870 920 8516
> m:+44 (0)7920 143 639
> e: david.gradwell at vocalink.com
> w: http://www.vocalink.com
>
> -----Original Message-----
> From: pljava-dev-bounces at pgfoundry.org [mailto:pljava-dev-bounces at pgfoundry.org] On Behalf Of Eric Kolotyluk
> Sent: 16 April 2011 00:41
> To: pljava-dev at pgfoundry.org
> Subject: Re: [Pljava-dev] Problem with PLJava on production machine
>
> Sorry to intrude on your discussion...
>
> Is the 64-bit verson of PL/Java for Windows 64-bit or for Postgres 64-bit.
>
> I tried getting the 32-bit version of PL/Java to run on Windows 64-bit
> with a 32-bit version of Postgres, but could not get that to work
> because the loader kept trying to link the 32-bit DLLs against 64-bit
> Windows libraries.
>
> I need to be able to run PL/Java on both 32-bit Windows and 64-bit Windows.
>
> Cheers, Eric
>
> On 2011-04-15 4:31 PM, Johann 'Myrkraverk' Oskarsson wrote:
>> Hi,
>>
>> Sorry about the delayed reply.
>>
>> On Sat, 12 Mar 2011 21:29:21 -0000, bartdeman
>> <bart.de.man at ticketmatic.com> wrote:
>>
>>> ok, finally got it working!
>>>
>>> it seems the binary from the download site did not work on my system. (i
>>> used pljava-i686-pc-linux-gnu-pg8.4-1.4.2.tar.gz)
>>>
>>> I have built my own binary from source, and that one works perfect.
>> Thank you, that may actually be helpful. The official binaries are
>> built on Ubuntu (32bit) and Debian (64bit).
>>
>> I'll see if I can get a hold of a RHEL/Centos system to test it myself
>> in the not too distant future.
>>
>>
> _______________________________________________
> Pljava-dev mailing list
> Pljava-dev at pgfoundry.org
> http://pgfoundry.org/mailman/listinfo/pljava-dev
>
>
>
>
> *****************************************************
> This email is issued by a VocaLink group company. It is confidential and intended for the exclusive use of the addressee only. You should not disclose its contents to any other person. If you are not the addressee (or responsible for delivery of the message to the addressee), please notify the originator immediately by return message and destroy the original message. The contents of this email will have no contractual effect unless it is otherwise agreed between a specific VocaLink group company and the recipient.
>
> The VocaLink group companies include, among others: VocaLink Limited (Company No 06119048, VAT No. 907 9619 87) which is registered in England and Wales at registered office Drake House, Homestead Road, Rickmansworth, WD3 1FX. United Kingdom, Voca Limited (Company no 1023742, VAT No. 907 9619 87) which is registered in England and Wales at registered office Drake House, Three Rivers Court, Homestead Road, Rickmansworth, Hertfordshire. WD3 1FX. United Kingdom, LINK Interchange Network Limited (Company No 3565766, VAT No. 907 9619 87) which is registered in England and Wales at registered office Arundel House, 1 Liverpool Gardens, Worthing, West Sussex, BN11 1SL and VocaLink Holdings Limited (Company No 06119036, VAT No. 907 9619 87) which is registered in England and Wales at registered office Drake House, Homestead Road, Rickmansworth, WD3 1FX. United Kingdom.
>
> The views and opinions expressed in this email may not reflect those of any member of the VocaLink group. This message and any attachments have been scanned for viruses prior to leaving the VocaLink group network; however, VocaLink does not guarantee the security of this message and will not be responsible for any damages arising as a result of any virus being passed on or arising from any alteration of this message by a third party. The VocaLink group may monitor emails sent to and from the VocaLink group network.
>
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Thomas,

I completely agree - I'm looking for a 64 bit PL/Java to test with 64 bit Windows 7 and 64 bit Postgres 9 !

Regards

David

David JL Gradwell, M.A. (Cantab), F.B.C.S.
Chartered IT Professional
Head of Consulting
VocaLink
?
t: ?+44 (0)870 920 8516
m:+44 (0)7920 143 639
e: ?david.gradwell at vocalink.com
w: http://www.vocalink.com

-----Original Message-----
From: pljava-dev-bounces at pgfoundry.org [mailto:pljava-dev-bounces at pgfoundry.org] On Behalf Of Thomas Hallgren
Sent: 18 April 2011 09:14
To: pljava-dev at pgfoundry.org
Subject: Re: [Pljava-dev] Problem with PLJava on production machine

Hi David,

I don't understand the urge to load a 32-bit Java VM into a 64 bit process. Why would anyone like to do that? It doubt
that it will ever work. If you have a 64-bit Postgres, I'm fairly convinced you'll need a 64-bit PL/Java binary.

- thomas

On 2011-04-18 09:24, David Gradwell wrote:
> I've got a 64 bit Windows 7 installation running 64 bit Postgres. I can confirm that the 32 bit PL/java doesn't load in that environment.
>
> Regards
>
> David JL Gradwell, M.A. (Cantab), F.B.C.S.
> Chartered IT Professional
> Head of Consulting
> VocaLink
>
> t: +44 (0)870 920 8516
> m:+44 (0)7920 143 639
> e: david.gradwell at vocalink.com
> w: http://www.vocalink.com
>
> -----Original Message-----
> From: pljava-dev-bounces at pgfoundry.org [mailto:pljava-dev-bounces at pgfoundry.org] On Behalf Of Eric Kolotyluk
> Sent: 16 April 2011 00:41
> To: pljava-dev at pgfoundry.org
> Subject: Re: [Pljava-dev] Problem with PLJava on production machine
>
> Sorry to intrude on your discussion...
>
> Is the 64-bit verson of PL/Java for Windows 64-bit or for Postgres 64-bit.
>
> I tried getting the 32-bit version of PL/Java to run on Windows 64-bit
> with a 32-bit version of Postgres, but could not get that to work
> because the loader kept trying to link the 32-bit DLLs against 64-bit
> Windows libraries.
>
> I need to be able to run PL/Java on both 32-bit Windows and 64-bit Windows.
>
> Cheers, Eric
>
> On 2011-04-15 4:31 PM, Johann 'Myrkraverk' Oskarsson wrote:
>> Hi,
>>
>> Sorry about the delayed reply.
>>
>> On Sat, 12 Mar 2011 21:29:21 -0000, bartdeman
>> <bart.de.man at ticketmatic.com> wrote:
>>
>>> ok, finally got it working!
>>>
>>> it seems the binary from the download site did not work on my system. (i
>>> used pljava-i686-pc-linux-gnu-pg8.4-1.4.2.tar.gz)
>>>
>>> I have built my own binary from source, and that one works perfect.
>> Thank you, that may actually be helpful. The official binaries are
>> built on Ubuntu (32bit) and Debian (64bit).
>>
>> I'll see if I can get a hold of a RHEL/Centos system to test it myself
>> in the not too distant future.
>>
>>
> _______________________________________________
> Pljava-dev mailing list
> Pljava-dev at pgfoundry.org
> http://pgfoundry.org/mailman/listinfo/pljava-dev
>
>
>
>
> *****************************************************
> This email is issued by a VocaLink group company. It is confidential and intended for the exclusive use of the addressee only. You should not disclose its contents to any other person. If you are not the addressee (or responsible for delivery of the message to the addressee), please notify the originator immediately by return message and destroy the original message. The contents of this email will have no contractual effect unless it is otherwise agreed between a specific VocaLink group company and the recipient.
>
> The VocaLink group companies include, among others: VocaLink Limited (Company No 06119048, VAT No. 907 9619 87) which is registered in England and Wales at registered office Drake House, Homestead Road, Rickmansworth, WD3 1FX. United Kingdom, Voca Limited (Company no 1023742, VAT No. 907 9619 87) which is registered in England and Wales at registered office Drake House, Three Rivers Court, Homestead Road, Rickmansworth, Hertfordshire. WD3 1FX. United Kingdom, LINK Interchange Network Limited (Company No 3565766, VAT No. 907 9619 87) which is registered in England and Wales at registered office Arundel House, 1 Liverpool Gardens, Worthing, West Sussex, BN11 1SL and VocaLink Holdings Limited (Company No 06119036, VAT No. 907 9619 87) which is registered in England and Wales at registered office Drake House, Homestead Road, Rickmansworth, WD3 1FX. United Kingdom.
>
> The views and opinions expressed in this email may not reflect those of any member of the VocaLink group. This message and any attachments have been scanned for viruses prior to leaving the VocaLink group network; however, VocaLink does not guarantee the security of this message and will not be responsible for any damages arising as a result of any virus being passed on or arising from any alteration of this message by a third party. The VocaLink group may monitor emails sent to and from the VocaLink group network.
>
> This message has been checked for all email viruses by MessageLabs.
> *************************************************************
> _______________________________________________
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