Asp Forum - Remote Object time out - microsoft.public.dotnet.framework.remoting

Gaetano Lazzo

7/15/2004 11:31:00 AM

Hi,
I've created a 3-tier application using .net remoting. In the server there
is an 3-tier console that activates an object, the 'CampusDataAccessLoader'
that is a SAO, and is a singleton,i.e., there is only one instance of it.
The 'CampusDataAccessLoader' is a kind of 'class factory', i.e. it is used
to create another object which is referenced by the clients as a transparent
proxy
Every client connects to the 'DataAccessLoader' object, and obtains a
'DataAccess' object through a method of the CampusDataAccessLoader, let's
say

BinaryClientFormatterSinkProvider clientProvider new
BinaryClientFormatterSinkProvider();
IDictionary props = new Hashtable();
props["port"]=8989;
props["name"]= System.Guid.NewGuid.ToString();
TcpChannel chan = new TcpChannel(props, clientProvider, null);
ChannelServices.RegisterChannel(chan);
CampusDataAccessLoader Loader = (CampusDataAccessLoader)
Activator.GetObject(

typeof(CampusDataAccessLoader),"tcp://...remoteserver:8989/CampusDataAccessL
oader)
DataAccess DA = Loader.GetDataAccess(myuserid, mypassword) //---->DA is the
object used in the client to access the DataBase!

Well, everything is working well, but if the client user does not use
DataAccess' methods for some minutes, it seems that the remote DataAcces
object is disconnected... I suppose it's a time out problem.

I've tried adding
<lifetime

leaseTime="60M"

sponsorshpTimeOut="60M"

renewOnCallTime = "60M"

leaseManagerPollTime="10M"

/>

to the server config (attached), but it has no effect....
In the server machine I can query, through the CampusDataAccessLoader
methods, all the object created (remotely) by the clients, and they are
still alive!! It's the client that has lost the connection with the
DataAccess (DA) object!!
Can some one explain me how to fix this problem?

Many thanks in advance,
Nino

begin 666 CampusDataAccessLoader.exe.config
M/&-O;F9I9W5R871I;VX^#0H@(" \<WES=&5M+G)U;G1I;64N<F5M;W1I;F<^
M#0H@(" @(" \87!P;&EC871I;VX^#0H@(" @(" @(" \<V5R=FEC93X-"B @
M(" @(" @(" @(#QW96QL:VYO=VX@#0H@(" @(" @(" @(" @("!M;V1E/2)3
M:6YG;&5T;VXB( T*(" @(" @(" @(" @(" @='EP93TB;65T86-A;7!U<VQI
M8G)A<GDN0V%M<'5S1&%T84%C8V5S<TQO861E<BP@;65T86-A;7!U<VQI8G)A
M<GDB( T*(" @(" @(" @(" @(" @;V)J96-T57)I/2)#86UP=7-$871A06-C
M97-S3&]A9&5R+G)E;2(-"B @(" @(" @(" @("\^#0H@(" @(" @(" \+W-E
M<G9I8V4^#0H@(" @(" @(" \8VAA;FYE;',^#0H@(" @(" @(" @(" \8VAA
M;FYE;"!R968](G1C<"(@<&]R=#TB.#DX.2(O/@T*(" @(" @(" @/"]C:&%N
M;F5L<SX)(" @#0H)(" @/&QI9F5T:6UE( T*"0EL96%S951I;64](C8P32(-
M"@D)<W!O;G-O<G-H<%1I;65/=70](C8P32(-"@D)<F5N97=/;D-A;&Q4:6UE
M(#T@(C8P32(-"@D);&5A<V5-86YA9V5R4&]L;%1I;64](C$P32(-"@D@(" O
M/@T*(" @(" @/"]A<'!L:6-A=&EO;CX-"B @(#PO<WES=&5M+G)U;G1I;64N
;<F5M;W1I;F<^#0H\+V-O;F9I9W5R871I;VX^
`
end

3 Answers

Sunny

7/15/2004 2:24:00 PM

Hi,

the best way is to implement client side sponsors for your CAOs. That
way, if for some reason the client dies without proper releasing of the
object, the object will be freed.
Or you may override InitializeLifetimeService method in your CAO and set
the right timeouts.

Sunny

In article <uMKwo8laEHA.3508@TK2MSFTNGP09.phx.gbl>, bedlaz@tin.it
says...
> Hi,
> I''ve created a 3-tier application using .net remoting. In the server there
> is an 3-tier console that activates an object, the ''CampusDataAccessLoader''
> that is a SAO, and is a singleton,i.e., there is only one instance of it.
> The ''CampusDataAccessLoader'' is a kind of ''class factory'', i.e. it is used
> to create another object which is referenced by the clients as a transparent
> proxy
> Every client connects to the ''DataAccessLoader'' object, and obtains a
> ''DataAccess'' object through a method of the CampusDataAccessLoader, let''s
> say
>
> BinaryClientFormatterSinkProvider clientProvider new
> BinaryClientFormatterSinkProvider();
> IDictionary props = new Hashtable();
> props["port"]=8989;
> props["name"]= System.Guid.NewGuid.ToString();
> TcpChannel chan = new TcpChannel(props, clientProvider, null);
> ChannelServices.RegisterChannel(chan);
> CampusDataAccessLoader Loader = (CampusDataAccessLoader)
> Activator.GetObject(
>
> typeof(CampusDataAccessLoader),"tcp://...remoteserver:8989/CampusDataAccessL
> oader)
> DataAccess DA = Loader.GetDataAccess(myuserid, mypassword) //---->DA is the
> object used in the client to access the DataBase!
>
> Well, everything is working well, but if the client user does not use
> DataAccess'' methods for some minutes, it seems that the remote DataAcces
> object is disconnected... I suppose it''s a time out problem.
>
> I''ve tried adding
> <lifetime
>
> leaseTime="60M"
>
> sponsorshpTimeOut="60M"
>
> renewOnCallTime = "60M"
>
> leaseManagerPollTime="10M"
>
> />
>
> to the server config (attached), but it has no effect....
> In the server machine I can query, through the CampusDataAccessLoader
> methods, all the object created (remotely) by the clients, and they are
> still alive!! It''s the client that has lost the connection with the
> DataAccess (DA) object!!
> Can some one explain me how to fix this problem?
>
>
> Many thanks in advance,
> Nino
>
>
>
>
>
> begin 666 CampusDataAccessLoader.exe.config
> M/&-O;F9I9W5R871I;VX^#0H@(" \<WES=&5M+G)U;G1I;64N<F5M;W1I;F<^
> M#0H@(" @(" \87!P;&EC871I;VX^#0H@(" @(" @(" \<V5R=FEC93X-"B @
> M(" @(" @(" @(#QW96QL:VYO=VX@#0H@(" @(" @(" @(" @("!M;V1E/2)3
> M:6YG;&5T;VXB( T*(" @(" @(" @(" @(" @=''EP93TB;65T86-A;7!U<VQI
> M8G)A<GDN0V%M<''5S1&%T84%C8V5S<TQO861E<BP@;65T86-A;7!U<VQI8G)A
> M<GDB( T*(" @(" @(" @(" @(" @;V)J96-T57)I/2)#86UP=7-$871A06-C
> M97-S3&]A9&5R+G)E;2(-"B @(" @(" @(" @("\^#0H@(" @(" @(" \+W-E
> M<G9I8V4^#0H@(" @(" @(" \8VAA;FYE;'',^#0H@(" @(" @(" @(" \8VAA
> M;FYE;"!R968](G1C<"(@<&]R=#TB.#DX.2(O/@T*(" @(" @(" @/"]C:&%N
> M;F5L<SX)(" @#0H)(" @/&QI9F5T:6UE( T*"0EL96%S951I;64](C8P32(-
> M"@D)<W!O;G-O<G-H<%1I;65/=70](C8P32(-"@D)<F5N97=/;D-A;&Q4:6UE
> M(#T@(C8P32(-"@D);&5A<V5-86YA9V5R4&]L;%1I;64](C$P32(-"@D@(" O
> M/@T*(" @(" @/"]A<''!L:6-A=&EO;CX-"B @(#PO<WES=&5M+G)U;G1I;64N
> ;<F5M;W1I;F<^#0H\+V-O;F9I9W5R871I;VX^
> `
> end
>
>

Allen Anderson

7/15/2004 9:12:00 PM

this article has some more information about leases and sponsors you
might want to check out.

http://msdn.microsoft.com/library/default.asp?url=/library/en-us/dndotnet/html/introre...

watch for word wrap.

Cheers,
Allen Anderson
http://www.glacialcomp...
mailto: allen@put my website base here.com

On Thu, 15 Jul 2004 13:30:54 +0200, "Gaetano Lazzo" <bedlaz@tin.it>
wrote:

>Hi,
>I''ve created a 3-tier application using .net remoting. In the server there
>is an 3-tier console that activates an object, the ''CampusDataAccessLoader''
>that is a SAO, and is a singleton,i.e., there is only one instance of it.
>The ''CampusDataAccessLoader'' is a kind of ''class factory'', i.e. it is used
>to create another object which is referenced by the clients as a transparent
>proxy
>Every client connects to the ''DataAccessLoader'' object, and obtains a
>''DataAccess'' object through a method of the CampusDataAccessLoader, let''s
>say
>
>BinaryClientFormatterSinkProvider clientProvider new
>BinaryClientFormatterSinkProvider();
>IDictionary props = new Hashtable();
>props["port"]=8989;
>props["name"]= System.Guid.NewGuid.ToString();
>TcpChannel chan = new TcpChannel(props, clientProvider, null);
>ChannelServices.RegisterChannel(chan);
>CampusDataAccessLoader Loader = (CampusDataAccessLoader)
>Activator.GetObject(
>
>typeof(CampusDataAccessLoader),"tcp://...remoteserver:8989/CampusDataAccessL
>oader)
>DataAccess DA = Loader.GetDataAccess(myuserid, mypassword) //---->DA is the
>object used in the client to access the DataBase!
>
>Well, everything is working well, but if the client user does not use
>DataAccess'' methods for some minutes, it seems that the remote DataAcces
>object is disconnected... I suppose it''s a time out problem.
>
>I''ve tried adding
><lifetime
>
>leaseTime="60M"
>
>sponsorshpTimeOut="60M"
>
>renewOnCallTime = "60M"
>
>leaseManagerPollTime="10M"
>
>/>
>
>to the server config (attached), but it has no effect....
>In the server machine I can query, through the CampusDataAccessLoader
>methods, all the object created (remotely) by the clients, and they are
>still alive!! It''s the client that has lost the connection with the
>DataAccess (DA) object!!
>Can some one explain me how to fix this problem?
>
>
>Many thanks in advance,
>Nino
>
>
>
>

Gaetano Lazzo

7/15/2004 10:22:00 PM

I ovveridden InitializeLifetimeService og the DataAccess class and it
worked!
Many thanks to all!
Nino
"Sunny" <sunny@newsgroups.nospam> wrote in message
news:Oi6MgdnaEHA.1656@TK2MSFTNGP09.phx.gbl...
> Hi,
>
> the best way is to implement client side sponsors for your CAOs. That
> way, if for some reason the client dies without proper releasing of the
> object, the object will be freed.
> Or you may override InitializeLifetimeService method in your CAO and set
> the right timeouts.
>
> Sunny
>
>
> In article <uMKwo8laEHA.3508@TK2MSFTNGP09.phx.gbl>, bedlaz@tin.it
> says...
> > Hi,
> > I''ve created a 3-tier application using .net remoting. In the server
there
> > is an 3-tier console that activates an object, the
''CampusDataAccessLoader''
> > that is a SAO, and is a singleton,i.e., there is only one instance of
it.
> > The ''CampusDataAccessLoader'' is a kind of ''class factory'', i.e. it is
used
> > to create another object which is referenced by the clients as a
transparent
> > proxy
> > Every client connects to the ''DataAccessLoader'' object, and obtains a
> > ''DataAccess'' object through a method of the CampusDataAccessLoader,
let''s
> > say
> >
> > BinaryClientFormatterSinkProvider clientProvider new
> > BinaryClientFormatterSinkProvider();
> > IDictionary props = new Hashtable();
> > props["port"]=8989;
> > props["name"]= System.Guid.NewGuid.ToString();
> > TcpChannel chan = new TcpChannel(props, clientProvider, null);
> > ChannelServices.RegisterChannel(chan);
> > CampusDataAccessLoader Loader = (CampusDataAccessLoader)
> > Activator.GetObject(
> >
> >
typeof(CampusDataAccessLoader),"tcp://...remoteserver:8989/CampusDataAccessL
> > oader)
> > DataAccess DA = Loader.GetDataAccess(myuserid, mypassword) //---->DA is
the
> > object used in the client to access the DataBase!
> >
> > Well, everything is working well, but if the client user does not use
> > DataAccess'' methods for some minutes, it seems that the remote DataAcces
> > object is disconnected... I suppose it''s a time out problem.
> >
> > I''ve tried adding
> > <lifetime
> >
> > leaseTime="60M"
> >
> > sponsorshpTimeOut="60M"
> >
> > renewOnCallTime = "60M"
> >
> > leaseManagerPollTime="10M"
> >
> > />
> >
> > to the server config (attached), but it has no effect....
> > In the server machine I can query, through the CampusDataAccessLoader
> > methods, all the object created (remotely) by the clients, and they are
> > still alive!! It''s the client that has lost the connection with the
> > DataAccess (DA) object!!
> > Can some one explain me how to fix this problem?
> >
> >
> > Many thanks in advance,
> > Nino
> >
> >
> >
> >
> >
> > begin 666 CampusDataAccessLoader.exe.config
> > M/&-O;F9I9W5R871I;VX^#0H@(" \<WES=&5M+G)U;G1I;64N<F5M;W1I;F<^
> > M#0H@(" @(" \87!P;&EC871I;VX^#0H@(" @(" @(" \<V5R=FEC93X-"B @
> > M(" @(" @(" @(#QW96QL:VYO=VX@#0H@(" @(" @(" @(" @("!M;V1E/2)3
> > M:6YG;&5T;VXB( T*(" @(" @(" @(" @(" @=''EP93TB;65T86-A;7!U<VQI
> > M8G)A<GDN0V%M<''5S1&%T84%C8V5S<TQO861E<BP@;65T86-A;7!U<VQI8G)A
> > M<GDB( T*(" @(" @(" @(" @(" @;V)J96-T57)I/2)#86UP=7-$871A06-C
> > M97-S3&]A9&5R+G)E;2(-"B @(" @(" @(" @("\^#0H@(" @(" @(" \+W-E
> > M<G9I8V4^#0H@(" @(" @(" \8VAA;FYE;'',^#0H@(" @(" @(" @(" \8VAA
> > M;FYE;"!R968](G1C<"(@<&]R=#TB.#DX.2(O/@T*(" @(" @(" @/"]C:&%N
> > M;F5L<SX)(" @#0H)(" @/&QI9F5T:6UE( T*"0EL96%S951I;64](C8P32(-
> > M"@D)<W!O;G-O<G-H<%1I;65/=70](C8P32(-"@D)<F5N97=/;D-A;&Q4:6UE
> > M(#T@(C8P32(-"@D);&5A<V5-86YA9V5R4&]L;%1I;64](C$P32(-"@D@(" O
> > M/@T*(" @(" @/"]A<''!L:6-A=&EO;CX-"B @(#PO<WES=&5M+G)U;G1I;64N
> > ;<F5M;W1I;F<^#0H\+V-O;F9I9W5R871I;VX^
> > `
> > end
> >
> >

microsoft.public.dotnet.framework.remoting

Remote Object time out

Gaetano Lazzo

Sunny

Allen Anderson

Gaetano Lazzo

x Login to ForumsZone