12:12 p.m.
I upgraded Guvnor on the JBoss server by replacing the 5.0.1
drools-guvnor.war in /server/default/deploy with the drools-guvnor.war
for 5.1.1. Once we restarted the server, everything seemed to be
working fine with the 5.1.1 features. It wasn't until a couple weeks
later when we tried to connect that we started getting the failure
messages. The package in question is new since the upgrade.
How do I re-compile/re-package the binaries? I'm assuming this is
different from doing a "Save and validate configuration" or "Build
package" on the package screen.
Thanks and a Happy New Year to you as well!
John
Message: 2
Date: Tue, 4 Jan 2011 16:56:52 +0000
From: Michael Anstis <michael.anstis(a)gmail.com>
Subject: Re: [rules-users] KnowledgeAgent exception while trying to
deserialize KnowledgeDefinitionsPackage
To: Rules Users List <rules-users(a)lists.jboss.org>
Message-ID:
<AANLkTiktBPpALU68Ptbha=gVQ7OYDeMs1Eee+u+TmbFj(a)mail.gmail.com>
Content-Type: text/plain; charset="windows-1252"
Hi John,
AFAIK you need both client (i.e. your IDE) and server versions of Guvnor
to be the same.
If you are trying to load a package from an existing (5.0.1) Guvnor
repositoty I believe you will need to re-compile\re-package the binaries
as a number of SerialVersionIds changed.
It wasn't clear from your email whether this is what you have set-up.
Happy New Year!
Mike
2011/1/4 John Peterson <john.peterson.gv3k(a)statefarm.com>
This is sort of a repost of an error I?ve been getting, but I
thought
with the new year, I?d give it another shot.
I?ve been getting the following exception in my code:
[2010:12:361 09:12:910:debug] KnowledgeAgent rebuilding KnowledgeBase
using ChangeSet
[2010:12:361 09:12:972:exception]
***java.lang.RuntimeException*: KnowledgeAgent exception while trying
to deserialize KnowledgeDefinitionsPackage
atorg.drools.agent.impl.KnowledgeAgentImpl.createPackageFromResource(*
**
KnowledgeAgentImpl.java:664*)
atorg.drools.agent.impl.KnowledgeAgentImpl.addResourcesToKnowledgeBase
(*
**KnowledgeAgentImpl.java:889*)
at org.drools.agent.impl.KnowledgeAgentImpl.rebuildResources(***
KnowledgeAgentImpl.java:704*)
at org.drools.agent.impl.KnowledgeAgentImpl.buildKnowledgeBase(***
KnowledgeAgentImpl.java:584*)
at org.drools.agent.impl.KnowledgeAgentImpl.applyChangeSet(***
KnowledgeAgentImpl.java:185*)
at org.drools.agent.impl.KnowledgeAgentImpl.applyChangeSet(***
KnowledgeAgentImpl.java:168*)
at com.agencyawards2.RuleSessionProviderFactory.getSessionFactory(
***RuleSessionProviderFactory.java:95*)
at com.agencyawards2.RuleSessionProviderFactory.getProvider(***
RuleSessionProviderFactory.java:35*)
at com.agencyawards2.RunRules.runRules(***RunRules.java:27*)
at com.agencyawards2.DroolsTest.main(***DroolsTest.java:40*)
Caused by:*** java.io.StreamCorruptedException*: invalid stream
header:7061636B
at java.io.ObjectInputStream.readStreamHeader(Unknown Source)
at java.io.ObjectInputStream.<init>(Unknown Source)
at org.drools.common.DroolsObjectInputStream.<init>(***
DroolsObjectInputStream.java:71*)
at org.drools.core.util.DroolsStreamUtils.streamIn(***
DroolsStreamUtils.java:205*)
at org.drools.core.util.DroolsStreamUtils.streamIn(***
DroolsStreamUtils.java:174*)
atorg.drools.agent.impl.KnowledgeAgentImpl.createPackageFromResource(*
**
KnowledgeAgentImpl.java:653*)
... 9 more
I?m running Drools 5.1.1 on my workstation in Eclipse. When I run it
against Guvnor locally using version 5.1.1 installed as the ?Guvnor
Standalone? downloaded at the same time as Drools 5.1.1 was
downloadedfrom the
JBoss.org site, it works fine.
When I run it against the server, which was from the 5.0.1 ?Guvnor
Standalone? installation, but I updated the drools-guvnor.war file to
use the new 5.1.1 version, I get the error listed above. Based on my
research into the ?KnowledgeAgent exception while trying to
deserialize KnowledgeDefinitionsPackage? error, it seems to stem from
an incompatibility between versions of Drools.
Do I need to install the 5.1.1 Guvnor Standalone to my server to bring
the versions into synch, or am I experiencing some other sort of
problem?
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8:48 a.m.
New subject: KnowledgeAgent exception while trying to deserialize KnowledgeDefinitionsPackage
Hi John,
Hmmm.... one of these types of problem. Nice.
Firstly, the "re-compile\re-package" malarkey is the same as "Build
package"
on the package information screen (or whatever we want to call that too!)
I am suspicious that something somewhere else has not caused the problem: If
Guvnor 5.1.1 (presumably) worked OK for a couple of weeks following the
upgrade.....
Was this the first new package created with 5.1.1? Has the server been
restored for some reason (to a backup with 5.0.1)? Have any new packages
been successful?
Thanks,
Mike
On 4 January 2011 18:12, John Peterson <john.peterson.gv3k(a)statefarm.com>wrote:
I upgraded Guvnor on the JBoss server by replacing the 5.0.1
drools-guvnor.war in /server/default/deploy with the drools-guvnor.war
for 5.1.1. Once we restarted the server, everything seemed to be
working fine with the 5.1.1 features. It wasn't until a couple weeks
later when we tried to connect that we started getting the failure
messages. The package in question is new since the upgrade.
How do I re-compile/re-package the binaries? I'm assuming this is
different from doing a "Save and validate configuration" or "Build
package" on the package screen.
Thanks and a Happy New Year to you as well!
John
Message: 2
Date: Tue, 4 Jan 2011 16:56:52 +0000
From: Michael Anstis <michael.anstis(a)gmail.com>
Subject: Re: [rules-users] KnowledgeAgent exception while trying to
deserialize KnowledgeDefinitionsPackage
To: Rules Users List <rules-users(a)lists.jboss.org>
Message-ID:
<AANLkTiktBPpALU68Ptbha=gVQ7OYDeMs1Eee+u+TmbFj@mail.gmail.com<gVQ7OYDeMs1Eee%2Bu%2BTmbFj(a)mail.gmail.com>
>
Content-Type: text/plain; charset="windows-1252"
Hi John,
AFAIK you need both client (i.e. your IDE) and server versions of Guvnor
to be the same.
If you are trying to load a package from an existing (5.0.1) Guvnor
repositoty I believe you will need to re-compile\re-package the binaries
as a number of SerialVersionIds changed.
It wasn't clear from your email whether this is what you have set-up.
Happy New Year!
Mike
2011/1/4 John Peterson <john.peterson.gv3k(a)statefarm.com>
> This is sort of a repost of an error I?ve been getting, but I thought
> with the new year, I?d give it another shot.
>
> I?ve been getting the following exception in my code:
>
> [2010:12:361 09:12:910:debug] KnowledgeAgent rebuilding KnowledgeBase
> using ChangeSet
>
> [2010:12:361 09:12:972:exception]
>
> ***java.lang.RuntimeException*: KnowledgeAgent exception while trying
> to deserialize KnowledgeDefinitionsPackage
>
>
> atorg.drools.agent.impl.KnowledgeAgentImpl.createPackageFromResource(*
> **
> KnowledgeAgentImpl.java:664*)
>
>
> atorg.drools.agent.impl.KnowledgeAgentImpl.addResourcesToKnowledgeBase
> (*
> **KnowledgeAgentImpl.java:889*)
>
> at org.drools.agent.impl.KnowledgeAgentImpl.rebuildResources(***
> KnowledgeAgentImpl.java:704*)
>
> at org.drools.agent.impl.KnowledgeAgentImpl.buildKnowledgeBase(***
> KnowledgeAgentImpl.java:584*)
>
> at org.drools.agent.impl.KnowledgeAgentImpl.applyChangeSet(***
> KnowledgeAgentImpl.java:185*)
>
> at org.drools.agent.impl.KnowledgeAgentImpl.applyChangeSet(***
> KnowledgeAgentImpl.java:168*)
>
> at com.agencyawards2.RuleSessionProviderFactory.getSessionFactory(
> ***RuleSessionProviderFactory.java:95*)
>
> at com.agencyawards2.RuleSessionProviderFactory.getProvider(***
> RuleSessionProviderFactory.java:35*)
>
> at com.agencyawards2.RunRules.runRules(***RunRules.java:27*)
>
> at com.agencyawards2.DroolsTest.main(***DroolsTest.java:40*)
>
> Caused by:*** java.io.StreamCorruptedException*: invalid stream
> header:7061636B
>
> at java.io.ObjectInputStream.readStreamHeader(Unknown Source)
>
> at java.io.ObjectInputStream.<init>(Unknown Source)
>
> at org.drools.common.DroolsObjectInputStream.<init>(***
> DroolsObjectInputStream.java:71*)
>
> at org.drools.core.util.DroolsStreamUtils.streamIn(***
> DroolsStreamUtils.java:205*)
>
> at org.drools.core.util.DroolsStreamUtils.streamIn(***
> DroolsStreamUtils.java:174*)
>
>
> atorg.drools.agent.impl.KnowledgeAgentImpl.createPackageFromResource(*
> **
> KnowledgeAgentImpl.java:653*)
>
> ... 9 more
>
> I?m running Drools 5.1.1 on my workstation in Eclipse. When I run it
> against Guvnor locally using version 5.1.1 installed as the ?Guvnor
> Standalone? downloaded at the same time as Drools 5.1.1 was
downloadedfrom the JBoss.org site, it works fine.
>
> When I run it against the server, which was from the 5.0.1 ?Guvnor
> Standalone? installation, but I updated the drools-guvnor.war file to
> use the new 5.1.1 version, I get the error listed above. Based on my
> research into the ?KnowledgeAgent exception while trying to
> deserialize KnowledgeDefinitionsPackage? error, it seems to stem from
> an incompatibility between versions of Drools.
>
> Do I need to install the 5.1.1 Guvnor Standalone to my server to bring
> the versions into synch, or am I experiencing some other sort of
problem?
>
>
> _______________________________________________
> rules-users mailing list
> rules-users(a)lists.jboss.org
> https://lists.jboss.org/mailman/listinfo/rules-users
>
>
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