[Geoserver-devel] Windows build server, almost there

Hi,
the windows build keeps on running once per hour to locate spurious failures,
as far as I could see during the last week we are down to two common failures:
a) XML security tests leaving files open, which cannot be cleaned up after (, e.g. http://winbuild.geo-solutions.it/jenkins/job/GeoServer-Master/org.geoserver$gs-main/1422/testReport/junit/org.geoserver.security.xml/XMLRoleServiceTest/testInsert/)
b) a rare failure that makes EPSG:4326 impossible to decode, with no information on how to debug it (no errors in the HSQL setup), and no way to reproduce it

a) happens every 10-20 builds, b) seems to happen every 20-50 builds

I was thinking to make the build server start sending hate mails in case of build failures once we fix a),
given than b) seems to be un-crackable and relatively rare.

What do you think?

Cheers
Andrea

···

==

GeoServer Professional Services from the experts! Visit
http://goo.gl/NWWaa2 for more information.

==

Ing. Andrea Aime

@geowolf
Technical Lead

GeoSolutions S.A.S.
Via Poggio alle Viti 1187
55054 Massarosa (LU)
Italy
phone: +39 0584 962313
fax: +39 0584 1660272
mob: +39 339 8844549

http://www.geo-solutions.it
http://twitter.com/geosolutions_it

AVVERTENZE AI SENSI DEL D.Lgs. 196/2003

Le informazioni contenute in questo messaggio di posta elettronica e/o nel/i file/s allegato/i sono da considerarsi strettamente riservate. Il loro utilizzo è consentito esclusivamente al destinatario del messaggio, per le finalità indicate nel messaggio stesso. Qualora riceviate questo messaggio senza esserne il destinatario, Vi preghiamo cortesemente di darcene notizia via e-mail e di procedere alla distruzione del messaggio stesso, cancellandolo dal Vostro sistema. Conservare il messaggio stesso, divulgarlo anche in parte, distribuirlo ad altri soggetti, copiarlo, od utilizzarlo per finalità diverse, costituisce comportamento contrario ai principi dettati dal D.Lgs. 196/2003.

The information in this message and/or attachments, is intended solely for the attention and use of the named addressee(s) and may be confidential or proprietary in nature or covered by the provisions of privacy act (Legislative Decree June, 30 2003, no.196 - Italy’s New Data Protection Code).Any use not in accord with its purpose, any disclosure, reproduction, copying, distribution, or either dissemination, either whole or partial, is strictly forbidden except previous formal approval of the named addressee(s). If you are not the intended recipient, please contact immediately the sender by telephone, fax or e-mail and delete the information in this message that has been received in error. The sender does not give any warranty or accept liability as the content, accuracy or completeness of sent messages and accepts no responsibility for changes made after they were sent or for other risks which arise as a result of e-mail transmission, viruses, etc.


+1
Regards,
Simone Giannecchini

GeoServer Professional Services from the experts! Visit
http://goo.gl/NWWaa2 for more information.

Ing. Simone Giannecchini
@simogeo
Founder/Director

GeoSolutions S.A.S.
Via Poggio alle Viti 1187
55054 Massarosa (LU)
Italy
phone: +39 0584 962313
fax: +39 0584 1660272
mob: +39 333 8128928

http://www.geo-solutions.it
http://twitter.com/geosolutions_it

-------------------------------------------------------
AVVERTENZE AI SENSI DEL D.Lgs. 196/2003
Le informazioni contenute in questo messaggio di posta elettronica e/o
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distribuirlo ad altri soggetti, copiarlo, od utilizzarlo per finalità
diverse, costituisce comportamento contrario ai principi dettati dal
D.Lgs. 196/2003.

The information in this message and/or attachments, is intended solely
for the attention and use of the named addressee(s) and may be
confidential or proprietary in nature or covered by the provisions of
privacy act (Legislative Decree June, 30 2003, no.196 - Italy's New
Data Protection Code).Any use not in accord with its purpose, any
disclosure, reproduction, copying, distribution, or either
dissemination, either whole or partial, is strictly forbidden except
previous formal approval of the named addressee(s). If you are not the
intended recipient, please contact immediately the sender by
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transmission, viruses, etc.

On Fri, Apr 24, 2015 at 8:26 AM, Andrea Aime
<andrea.aime@anonymised.com> wrote:

Hi,
the windows build keeps on running once per hour to locate spurious
failures,
as far as I could see during the last week we are down to two common
failures:
a) XML security tests leaving files open, which cannot be cleaned up after
(, e.g.
http://winbuild.geo-solutions.it/jenkins/job/GeoServer-Master/org.geoserver$gs-main/1422/testReport/junit/org.geoserver.security.xml/XMLRoleServiceTest/testInsert/)
b) a rare failure that makes EPSG:4326 impossible to decode, with no
information on how to debug it (no errors in the HSQL setup), and no way to
reproduce it

a) happens every 10-20 builds, b) seems to happen every 20-50 builds

I was thinking to make the build server start sending hate mails in case of
build failures once we fix a),
given than b) seems to be un-crackable and relatively rare.

What do you think?

Cheers
Andrea

--

GeoServer Professional Services from the experts! Visit
http://goo.gl/NWWaa2 for more information.

Ing. Andrea Aime
@geowolf
Technical Lead

GeoSolutions S.A.S.
Via Poggio alle Viti 1187
55054 Massarosa (LU)
Italy
phone: +39 0584 962313
fax: +39 0584 1660272
mob: +39 339 8844549

http://www.geo-solutions.it
http://twitter.com/geosolutions_it

AVVERTENZE AI SENSI DEL D.Lgs. 196/2003

Le informazioni contenute in questo messaggio di posta elettronica e/o nel/i
file/s allegato/i sono da considerarsi strettamente riservate. Il loro
utilizzo è consentito esclusivamente al destinatario del messaggio, per le
finalità indicate nel messaggio stesso. Qualora riceviate questo messaggio
senza esserne il destinatario, Vi preghiamo cortesemente di darcene notizia
via e-mail e di procedere alla distruzione del messaggio stesso,
cancellandolo dal Vostro sistema. Conservare il messaggio stesso, divulgarlo
anche in parte, distribuirlo ad altri soggetti, copiarlo, od utilizzarlo per
finalità diverse, costituisce comportamento contrario ai principi dettati
dal D.Lgs. 196/2003.

The information in this message and/or attachments, is intended solely for
the attention and use of the named addressee(s) and may be confidential or
proprietary in nature or covered by the provisions of privacy act
(Legislative Decree June, 30 2003, no.196 - Italy's New Data Protection
Code).Any use not in accord with its purpose, any disclosure, reproduction,
copying, distribution, or either dissemination, either whole or partial, is
strictly forbidden except previous formal approval of the named
addressee(s). If you are not the intended recipient, please contact
immediately the sender by telephone, fax or e-mail and delete the
information in this message that has been received in error. The sender does
not give any warranty or accept liability as the content, accuracy or
completeness of sent messages and accepts no responsibility for changes
made after they were sent or for other risks which arise as a result of
e-mail transmission, viruses, etc.

-------------------------------------------------------

------------------------------------------------------------------------------
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Widest out-of-the-box monitoring support with 50+ applications
Performance metrics, stats and reports that give you Actionable Insights
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+1
Unfortunately there is no Windows around me for investigations.

Cheers
Christian

···

On Fri, Apr 24, 2015 at 9:30 AM, Simone Giannecchini <simone.giannecchini@anonymised.com> wrote:

+1
Regards,
Simone Giannecchini

GeoServer Professional Services from the experts! Visit
http://goo.gl/NWWaa2 for more information.

Ing. Simone Giannecchini
@simogeo
Founder/Director

GeoSolutions S.A.S.
Via Poggio alle Viti 1187
55054 Massarosa (LU)
Italy
phone: +39 0584 962313
fax: +39 0584 1660272
mob: +39 333 8128928

http://www.geo-solutions.it
http://twitter.com/geosolutions_it


AVVERTENZE AI SENSI DEL D.Lgs. 196/2003
Le informazioni contenute in questo messaggio di posta elettronica e/o
nel/i file/s allegato/i sono da considerarsi strettamente riservate.
Il loro utilizzo è consentito esclusivamente al destinatario del
messaggio, per le finalità indicate nel messaggio stesso. Qualora
riceviate questo messaggio senza esserne il destinatario, Vi preghiamo
cortesemente di darcene notizia via e-mail e di procedere alla
distruzione del messaggio stesso, cancellandolo dal Vostro sistema.
Conservare il messaggio stesso, divulgarlo anche in parte,
distribuirlo ad altri soggetti, copiarlo, od utilizzarlo per finalità
diverse, costituisce comportamento contrario ai principi dettati dal
D.Lgs. 196/2003.

The information in this message and/or attachments, is intended solely
for the attention and use of the named addressee(s) and may be
confidential or proprietary in nature or covered by the provisions of
privacy act (Legislative Decree June, 30 2003, no.196 - Italy’s New
Data Protection Code).Any use not in accord with its purpose, any
disclosure, reproduction, copying, distribution, or either
dissemination, either whole or partial, is strictly forbidden except
previous formal approval of the named addressee(s). If you are not the
intended recipient, please contact immediately the sender by
telephone, fax or e-mail and delete the information in this message
that has been received in error. The sender does not give any warranty
or accept liability as the content, accuracy or completeness of sent
messages and accepts no responsibility for changes made after they
were sent or for other risks which arise as a result of e-mail
transmission, viruses, etc.

On Fri, Apr 24, 2015 at 8:26 AM, Andrea Aime
<andrea.aime@anonymised.com> wrote:

Hi,
the windows build keeps on running once per hour to locate spurious
failures,
as far as I could see during the last week we are down to two common
failures:
a) XML security tests leaving files open, which cannot be cleaned up after
(, e.g.
http://winbuild.geo-solutions.it/jenkins/job/GeoServer-Master/org.geoserver$gs-main/1422/testReport/junit/org.geoserver.security.xml/XMLRoleServiceTest/testInsert/)
b) a rare failure that makes EPSG:4326 impossible to decode, with no
information on how to debug it (no errors in the HSQL setup), and no way to
reproduce it

a) happens every 10-20 builds, b) seems to happen every 20-50 builds

I was thinking to make the build server start sending hate mails in case of
build failures once we fix a),
given than b) seems to be un-crackable and relatively rare.

What do you think?

Cheers
Andrea

GeoServer Professional Services from the experts! Visit
http://goo.gl/NWWaa2 for more information.

Ing. Andrea Aime
@geowolf
Technical Lead

GeoSolutions S.A.S.
Via Poggio alle Viti 1187
55054 Massarosa (LU)
Italy
phone: +39 0584 962313
fax: +39 0584 1660272
mob: +39 339 8844549

http://www.geo-solutions.it
http://twitter.com/geosolutions_it

AVVERTENZE AI SENSI DEL D.Lgs. 196/2003

Le informazioni contenute in questo messaggio di posta elettronica e/o nel/i
file/s allegato/i sono da considerarsi strettamente riservate. Il loro
utilizzo è consentito esclusivamente al destinatario del messaggio, per le
finalità indicate nel messaggio stesso. Qualora riceviate questo messaggio
senza esserne il destinatario, Vi preghiamo cortesemente di darcene notizia
via e-mail e di procedere alla distruzione del messaggio stesso,
cancellandolo dal Vostro sistema. Conservare il messaggio stesso, divulgarlo
anche in parte, distribuirlo ad altri soggetti, copiarlo, od utilizzarlo per
finalità diverse, costituisce comportamento contrario ai principi dettati
dal D.Lgs. 196/2003.

The information in this message and/or attachments, is intended solely for
the attention and use of the named addressee(s) and may be confidential or
proprietary in nature or covered by the provisions of privacy act
(Legislative Decree June, 30 2003, no.196 - Italy’s New Data Protection
Code).Any use not in accord with its purpose, any disclosure, reproduction,
copying, distribution, or either dissemination, either whole or partial, is
strictly forbidden except previous formal approval of the named
addressee(s). If you are not the intended recipient, please contact
immediately the sender by telephone, fax or e-mail and delete the
information in this message that has been received in error. The sender does
not give any warranty or accept liability as the content, accuracy or
completeness of sent messages and accepts no responsibility for changes
made after they were sent or for other risks which arise as a result of
e-mail transmission, viruses, etc.



One dashboard for servers and applications across Physical-Virtual-Cloud
Widest out-of-the-box monitoring support with 50+ applications
Performance metrics, stats and reports that give you Actionable Insights
Deep dive visibility with transaction tracing using APM Insight.
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Widest out-of-the-box monitoring support with 50+ applications
Performance metrics, stats and reports that give you Actionable Insights
Deep dive visibility with transaction tracing using APM Insight.
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DI Christian Mueller MSc (GIS), MSc (IT-Security)
OSS Open Source Solutions GmbH

On Mon, Apr 27, 2015 at 2:41 PM, Christian Mueller <
christian.mueller@anonymised.com> wrote:

+1
Unfortunately there is no Windows around me for investigations.

Hi Christian,
the issue is difficult to reproduce but I have a hunch. The lock file is
always the same, however
I can see that during a test run several LockFile instances are getting
created, and eventually
garbage collected... when that happens, finalize() is called, which deletes
the file,
on a Windows server, if the deletion happens while another LockFile
instance tries to write
the file, we are bound to see the error in question... and this would also
explain the intermittence
of the error, it's driven by GC cycles.

Can the code be modified to avoid this randomness? I'd think LockFile
should be treated
as a resource like datastore and friends, and closed explicitly once not
used anymore.

Cheers
Andrea

--

GeoServer Professional Services from the experts! Visit
http://goo.gl/NWWaa2 for more information.

Ing. Andrea Aime
@geowolf
Technical Lead

GeoSolutions S.A.S.
Via Poggio alle Viti 1187
55054 Massarosa (LU)
Italy
phone: +39 0584 962313
fax: +39 0584 1660272
mob: +39 339 8844549

http://www.geo-solutions.it
http://twitter.com/geosolutions_it

*AVVERTENZE AI SENSI DEL D.Lgs. 196/2003*

Le informazioni contenute in questo messaggio di posta elettronica e/o
nel/i file/s allegato/i sono da considerarsi strettamente riservate. Il
loro utilizzo è consentito esclusivamente al destinatario del messaggio,
per le finalità indicate nel messaggio stesso. Qualora riceviate questo
messaggio senza esserne il destinatario, Vi preghiamo cortesemente di
darcene notizia via e-mail e di procedere alla distruzione del messaggio
stesso, cancellandolo dal Vostro sistema. Conservare il messaggio stesso,
divulgarlo anche in parte, distribuirlo ad altri soggetti, copiarlo, od
utilizzarlo per finalità diverse, costituisce comportamento contrario ai
principi dettati dal D.Lgs. 196/2003.

The information in this message and/or attachments, is intended solely for
the attention and use of the named addressee(s) and may be confidential or
proprietary in nature or covered by the provisions of privacy act
(Legislative Decree June, 30 2003, no.196 - Italy's New Data Protection
Code).Any use not in accord with its purpose, any disclosure, reproduction,
copying, distribution, or either dissemination, either whole or partial, is
strictly forbidden except previous formal approval of the named
addressee(s). If you are not the intended recipient, please contact
immediately the sender by telephone, fax or e-mail and delete the
information in this message that has been received in error. The sender
does not give any warranty or accept liability as the content, accuracy or
completeness of sent messages and accepts no responsibility for changes
made after they were sent or for other risks which arise as a result of
e-mail transmission, viruses, etc.

-------------------------------------------------------

Hi Andrea

XMLUserGroupStore and XMLRoleStore have a method releaseLock which should do the job.

As far as I can remember, org.geoserver.security.file.LockFile.finalize() is a safeguard.

Any idea where to call releaseLock to avoid this problem.

Cheers
Christian

···

On Mon, Apr 27, 2015 at 2:47 PM, Andrea Aime <andrea.aime@anonymised.com> wrote:

On Mon, Apr 27, 2015 at 2:41 PM, Christian Mueller <christian.mueller@anonymised.com> wrote:

+1
Unfortunately there is no Windows around me for investigations.

Hi Christian,
the issue is difficult to reproduce but I have a hunch. The lock file is always the same, however
I can see that during a test run several LockFile instances are getting created, and eventually
garbage collected… when that happens, finalize() is called, which deletes the file,
on a Windows server, if the deletion happens while another LockFile instance tries to write
the file, we are bound to see the error in question… and this would also explain the intermittence
of the error, it’s driven by GC cycles.

Can the code be modified to avoid this randomness? I’d think LockFile should be treated
as a resource like datastore and friends, and closed explicitly once not used anymore.

Cheers
Andrea

==

GeoServer Professional Services from the experts! Visit
http://goo.gl/NWWaa2 for more information.

==

Ing. Andrea Aime

@geowolf
Technical Lead

GeoSolutions S.A.S.
Via Poggio alle Viti 1187
55054 Massarosa (LU)
Italy
phone: +39 0584 962313
fax: +39 0584 1660272
mob: +39 339 8844549

http://www.geo-solutions.it
http://twitter.com/geosolutions_it

AVVERTENZE AI SENSI DEL D.Lgs. 196/2003

Le informazioni contenute in questo messaggio di posta elettronica e/o nel/i file/s allegato/i sono da considerarsi strettamente riservate. Il loro utilizzo è consentito esclusivamente al destinatario del messaggio, per le finalità indicate nel messaggio stesso. Qualora riceviate questo messaggio senza esserne il destinatario, Vi preghiamo cortesemente di darcene notizia via e-mail e di procedere alla distruzione del messaggio stesso, cancellandolo dal Vostro sistema. Conservare il messaggio stesso, divulgarlo anche in parte, distribuirlo ad altri soggetti, copiarlo, od utilizzarlo per finalità diverse, costituisce comportamento contrario ai principi dettati dal D.Lgs. 196/2003.

The information in this message and/or attachments, is intended solely for the attention and use of the named addressee(s) and may be confidential or proprietary in nature or covered by the provisions of privacy act (Legislative Decree June, 30 2003, no.196 - Italy’s New Data Protection Code).Any use not in accord with its purpose, any disclosure, reproduction, copying, distribution, or either dissemination, either whole or partial, is strictly forbidden except previous formal approval of the named addressee(s). If you are not the intended recipient, please contact immediately the sender by telephone, fax or e-mail and delete the information in this message that has been received in error. The sender does not give any warranty or accept liability as the content, accuracy or completeness of sent messages and accepts no responsibility for changes made after they were sent or for other risks which arise as a result of e-mail transmission, viruses, etc.


DI Christian Mueller MSc (GIS), MSc (IT-Security)
OSS Open Source Solutions GmbH

On Mon, Apr 27, 2015 at 3:14 PM, Christian Mueller <
christian.mueller@anonymised.com> wrote:

Hi Andrea

XMLUserGroupStore and XMLRoleStore have a method releaseLock which should
do the job.

As far as I can remember, org.geoserver.security.file.LockFile.finalize()
is a safeguard.

Any idea where to call releaseLock to avoid this problem.

Not yet, I'm not familiar with that portion of the code and how the
lifecycle of its objects is
managed... I was hoping you would suggest the right place.

Cheers
Andrea

--

GeoServer Professional Services from the experts! Visit
http://goo.gl/NWWaa2 for more information.

Ing. Andrea Aime
@geowolf
Technical Lead

GeoSolutions S.A.S.
Via Poggio alle Viti 1187
55054 Massarosa (LU)
Italy
phone: +39 0584 962313
fax: +39 0584 1660272
mob: +39 339 8844549

http://www.geo-solutions.it
http://twitter.com/geosolutions_it

*AVVERTENZE AI SENSI DEL D.Lgs. 196/2003*

Le informazioni contenute in questo messaggio di posta elettronica e/o
nel/i file/s allegato/i sono da considerarsi strettamente riservate. Il
loro utilizzo è consentito esclusivamente al destinatario del messaggio,
per le finalità indicate nel messaggio stesso. Qualora riceviate questo
messaggio senza esserne il destinatario, Vi preghiamo cortesemente di
darcene notizia via e-mail e di procedere alla distruzione del messaggio
stesso, cancellandolo dal Vostro sistema. Conservare il messaggio stesso,
divulgarlo anche in parte, distribuirlo ad altri soggetti, copiarlo, od
utilizzarlo per finalità diverse, costituisce comportamento contrario ai
principi dettati dal D.Lgs. 196/2003.

The information in this message and/or attachments, is intended solely for
the attention and use of the named addressee(s) and may be confidential or
proprietary in nature or covered by the provisions of privacy act
(Legislative Decree June, 30 2003, no.196 - Italy's New Data Protection
Code).Any use not in accord with its purpose, any disclosure, reproduction,
copying, distribution, or either dissemination, either whole or partial, is
strictly forbidden except previous formal approval of the named
addressee(s). If you are not the intended recipient, please contact
immediately the sender by telephone, fax or e-mail and delete the
information in this message that has been received in error. The sender
does not give any warranty or accept liability as the content, accuracy or
completeness of sent messages and accepts no responsibility for changes
made after they were sent or for other risks which arise as a result of
e-mail transmission, viruses, etc.

-------------------------------------------------------

On Mon, Apr 27, 2015 at 3:16 PM, Andrea Aime <andrea.aime@anonymised.com>
wrote:

On Mon, Apr 27, 2015 at 3:14 PM, Christian Mueller <
christian.mueller@anonymised.com> wrote:

Hi Andrea

XMLUserGroupStore and XMLRoleStore have a method releaseLock which should
do the job.

As far as I can remember, org.geoserver.security.file.LockFile.finalize()
is a safeguard.

Any idea where to call releaseLock to avoid this problem.

Not yet, I'm not familiar with that portion of the code and how the
lifecycle of its objects is
managed... I was hoping you would suggest the right place.

Wondering, as an alternative... should we just remove the finalize as a
quick fix?

Cheers
Andrea

--

GeoServer Professional Services from the experts! Visit
http://goo.gl/NWWaa2 for more information.

Ing. Andrea Aime
@geowolf
Technical Lead

GeoSolutions S.A.S.
Via Poggio alle Viti 1187
55054 Massarosa (LU)
Italy
phone: +39 0584 962313
fax: +39 0584 1660272
mob: +39 339 8844549

http://www.geo-solutions.it
http://twitter.com/geosolutions_it

*AVVERTENZE AI SENSI DEL D.Lgs. 196/2003*

Le informazioni contenute in questo messaggio di posta elettronica e/o
nel/i file/s allegato/i sono da considerarsi strettamente riservate. Il
loro utilizzo è consentito esclusivamente al destinatario del messaggio,
per le finalità indicate nel messaggio stesso. Qualora riceviate questo
messaggio senza esserne il destinatario, Vi preghiamo cortesemente di
darcene notizia via e-mail e di procedere alla distruzione del messaggio
stesso, cancellandolo dal Vostro sistema. Conservare il messaggio stesso,
divulgarlo anche in parte, distribuirlo ad altri soggetti, copiarlo, od
utilizzarlo per finalità diverse, costituisce comportamento contrario ai
principi dettati dal D.Lgs. 196/2003.

The information in this message and/or attachments, is intended solely for
the attention and use of the named addressee(s) and may be confidential or
proprietary in nature or covered by the provisions of privacy act
(Legislative Decree June, 30 2003, no.196 - Italy's New Data Protection
Code).Any use not in accord with its purpose, any disclosure, reproduction,
copying, distribution, or either dissemination, either whole or partial, is
strictly forbidden except previous formal approval of the named
addressee(s). If you are not the intended recipient, please contact
immediately the sender by telephone, fax or e-mail and delete the
information in this message that has been received in error. The sender
does not give any warranty or accept liability as the content, accuracy or
completeness of sent messages and accepts no responsibility for changes
made after they were sent or for other risks which arise as a result of
e-mail transmission, viruses, etc.

-------------------------------------------------------

Hi Andrea

Yep, please remove/comment the finalize method and lets have a look at the results.

Cheers
Christian

···

On Mon, Apr 27, 2015 at 7:14 PM, Andrea Aime <andrea.aime@anonymised.com> wrote:

On Mon, Apr 27, 2015 at 3:16 PM, Andrea Aime <andrea.aime@anonymised.com> wrote:

Wondering, as an alternative… should we just remove the finalize as a quick fix?

Cheers

Andrea

==

GeoServer Professional Services from the experts! Visit
http://goo.gl/NWWaa2 for more information.

==

Ing. Andrea Aime

@geowolf
Technical Lead

GeoSolutions S.A.S.
Via Poggio alle Viti 1187
55054 Massarosa (LU)
Italy
phone: +39 0584 962313
fax: +39 0584 1660272
mob: +39 339 8844549

http://www.geo-solutions.it
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On Mon, Apr 27, 2015 at 3:14 PM, Christian Mueller <christian.mueller@anonymised.com> wrote:

Hi Andrea

XMLUserGroupStore and XMLRoleStore have a method releaseLock which should do the job.

As far as I can remember, org.geoserver.security.file.LockFile.finalize() is a safeguard.

Any idea where to call releaseLock to avoid this problem.

Not yet, I’m not familiar with that portion of the code and how the lifecycle of its objects is
managed… I was hoping you would suggest the right place.

DI Christian Mueller MSc (GIS), MSc (IT-Security)
OSS Open Source Solutions GmbH