NETIO HMG 3.0.0

[Vanguarda]

Hello Friends,
Thanks a lot. I just tested with Netio. It works fine. I like it Now, will it works on index file (.CDX) file also?
With best regards.
Sudip

Hello my friends,

Sorry, once again my delay to response.

About NETIO. YES it work fine with CDX.


My best regards,

[Roberto Lopez]

Someone please help me out. I've offloaded all versions of hmg, then downloaded and installed hmg3 test 9. I'm then compiling from the IDE the project in C:\hmg\SAMPLES\NETIO.02\HmgNetIOServer. It compiles ok but evry time i run it i get the message "can't run server". I'm i missing something? Kindly assist

Regards
Gilbert

That sample should be built with multi-threading support.

Please build from command line with /mt switch.

Regards,

Roberto.

[karweru]

Thank you very much Master. Thank you Grigory. Everything runs fine now.

[sudip]

Hello Roberto, Grigory,
Thanks a lot
It's working

Can anyone please tell me what's the main difference between LetoDB and NetIO? I am really very much interested about NetIO

Thanks in advance.

With best regards.
Sudip

[gfilatov]

...
Can anyone please tell me what's the main difference between LetoDB and NetIO? I am really very much interested about NetIO

Thanks in advance.

Hello Sudip,

Take a look for answers from the author of the NetIO library.
I hope that helps

On Tue, 01 Sep 2009, Ernad Husremovic wrote:

Hi,

> Hello hb community.
> A few days ago, we started porting our clipper solutions to LETODB RDD.
> Today I read about new Przemek great contribution: NETIO RDD.

To clarify. It's not RDD but only alternative RDD IO API library so
it allows to switch transport layer in all RDDs which uses hb_file*()
interface.

> Reading Changelog, NETIO is also good candidate for our default RDD.
> Our main goal is to provide multiplatform (linux, windows) solution

NETIO RDD resolves the problem with sharing database files between
different OS-es so it can be usefull in such cases.

> which is not vulnerable
> to data corruption caused by direct file access.

But here it will not help you in noticeable way.
It's not client server solution for database and index file processing.
They are still updated by the local station not the server so station
crash may leave index not fully updated.
NETIO replaces only transport layer.

> In some earlier conversation, Przemek wrote:
> > BTW it's not exactly client/server solution like in ADS or NETRDD if I finish it.
> I would like to hear community comments about the optimal choice of (opensource) RDDs in the client/server arena.

For sure full server side table and index processing is much better solution.
ADS and LETO are such servers. I haven't used any of them so I cannot say
too much about them. ADS is commercial project with very good user opinion.
LETO is opensource project but I do not know user experience about using it
in larger installations. I also cannot say too much about its internals
and if it's safe or not to use it with Harbour multithread programs.

best regards,
Przemek

[sudip]

Thanks a lot Grigory
Now it is clearer to me
With best regards.
Sudip

[karweru]

Hello Friends,

I have the following error:

" Error DbfNtx/1004 Create error: net:c:\hmgproject\demo\class.dbf (Dos error 123)"

When i run the following code:

FUNCTION test()
local aStru:={{"Name","C",20,0},{"Age","n",4,0}}
NETIO_CONNECT("127.0.0.1", 2941) //connects ok
dbCreate("net:c:\hmgproject\demo\class.dbf",aStru,rddsetdefault())
return Nil

The idea is to test how to create a dbf on a remote pc using NetIo. When i replace the DbCreate() line with the line
dbCreate("c:\hmgproject\demo\class.dbf",aStru,rddsetdefault()), the file creates correctly, but the idea of a remote pc is lost

Does NetIo support the dbCreate() function or am i missing something?

Kindly assist.

[Vanguarda]

Hi my friend Gilbert,

I´ll make some tests about it now.


Regards,

[Vanguarda]

Hello Friends,

I have the following error:

" Error DbfNtx/1004 Create error: net:c:\hmgproject\demo\class.dbf (Dos error 123)"

When i run the following code:

FUNCTION test()
local aStru:={{"Name","C",20,0},{"Age","n",4,0}}
NETIO_CONNECT("127.0.0.1", 2941) //connects ok
dbCreate("net:c:\hmgproject\demo\class.dbf",aStru,rddsetdefault())
return Nil

The idea is to test how to create a dbf on a remote pc using NetIo. When i replace the DbCreate() line with the line
dbCreate("c:\hmgproject\demo\class.dbf",aStru,rddsetdefault()), the file creates correctly, but the idea of a remote pc is lost

Does NetIo support the dbCreate() function or am i missing something?

Kindly assist.

Hi friend,

You are right, it don´t work with me too.

I´m still testing.

My best regards,

[karweru]

Hi Vanguarda,

I posted this querry to the Harbour forum and from Teo's answer, it would appear the real limitation is with the dbCreate() function other than NetIo. DbCreate() apparently does not create directories but assumes their pre-existance. This largely impedes real-life deployment of a netIo server because one would have to pre-create the required directories on the pc running the server. However i find it a very attractive alternative.

Warm regards,
Karweru.