How to use Mnesia Database from C/C++/Java ?
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How to use Mnesia Database from C/C++/Java ?
 
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Dear All, I am completely novice to Erlang, though have been working into telecom domain for quite some time. I have some of my applications like SMSC and others which need temporary data-storage written in C. Till date, i have been using relational databases like ‘MySQL/Oracle’ for temporary storage purpose. Because of performance constraints i need to shift this temporary storage to some in-memory database.
From initial overview, ‘MNESIA’ seems to be perfect replacement for my scenario. Have installed the same and tried to access the same from ‘Erlang’ , thankfully , have got the success in doing the same. Now, my problem is , i don’t want to change the core of my application which is already encoded in ‘C’ , so need to access ‘Mnesia DB’ from ‘C’. As per my findings, there are no ODBC drivers available for Mnesia. So, think need to have some kind of external interface to ‘Erlang’ like ‘Erl_Interface’ which i can use from ‘C’ program to interact with ‘Mnesia DB’. I just want to know if someone has worked on such kind of architecture ? If yes, can u please share your valuable experiences ? If no, how feasible and reliable does it seem to you ? Waiting for your valuable inputs. Thanks and Regards, Amritpal Singh This message and its attachments contain confidential information and may also contain legally privileged information. This message is intended solely for the named addressee. If you are not the addressee indicated in this message (or authorized to receive for addressee), you may not copy or deliver any part of this message or its attachments to anyone or use any part of this message or its attachments. Rather, you should permanently delete this message and its attachments (and all copies) from your system and kindly notify the sender by reply e-mail. Any content of this message and its attachments that does not relate to the official business of Cellebrum.com Pvt Ltd or its affiliates and/or subsidiaries must be taken not to have been sent or endorsed by any of them. Opinions and information in this email that do not relate to the official business of Cellebrum.com Pvt Ltd, shall be understood as neither given nor endorsed by Cellebrum.com Pvt Ltd. Any action/proceeding/opportunity upon the contents of this email taken by not intended addressee shall attract liabilities both criminal and civil against such addressee. Email communications are not private and no warranty is made that e-mail communications are timely, secure or free from computer virus or other defect. _______________________________________________ erlang-questions mailing list [hidden email] http://www.erlang.org/mailman/listinfo/erlang-questions |
Re: How to use Mnesia Database from C/C++/Java ?
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* Amritpal Singh <[hidden email]> wrote:
> Now, my problem is , i don't want to change the core of my application whic= > h is already encoded in 'C' , so need to access 'Mnesia DB' from 'C'. > As per my findings, there are no ODBC drivers available for Mnesia. > So, think need to have some kind of external interface to 'Erlang' like 'Er= > l_Interface' which i can use from 'C' program to interact with 'Mnesia DB'. If you have used sql before to store your temporary data, whats about sqlite? Just open an sqlite db with name ":memory:" and it creates an complete in-memory db easily accessible from your c program. cu, michael -- It's already too late! _______________________________________________ erlang-questions mailing list [hidden email] http://www.erlang.org/mailman/listinfo/erlang-questions |
Re: How to use Mnesia Database from C/C++/Java ?
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In reply to this post by Amritpal Singh-2
There is/used to be, something called Mnesia Session for doing exactly this.
I do not however see the documentation for it in the latest release, tehre is something here http://www.erlang.org/documentation/doc-5.0.1/lib/mnesia_session-1.1.3/doc/html/part_frame.html But if that is the latest I am not sure. --Søren -- Søren Hilmer, M.Sc., M.Crypt. wideTrail Phone: +45 25481225 Pilevænget 41 Email: [hidden email] DK-8961 Allingåbro Web: www.widetrail.dk On Mon, January 21, 2008 08:52, Amritpal Singh wrote: > Dear All, > > I am completely novice to Erlang, though have been working into telecom > domain for quite some time. > I have some of my applications like SMSC and others which need temporary > data-storage written in C. > Till date, i have been using relational databases like 'MySQL/Oracle' for > temporary storage purpose. Because of performance constraints i need to > shift this temporary storage to some in-memory database. >>From initial overview, 'MNESIA' seems to be perfect replacement for my >> scenario. > Have installed the same and tried to access the same from 'Erlang' , > thankfully , have got the success in doing the same. > > Now, my problem is , i don't want to change the core of my application > which is already encoded in 'C' , so need to access 'Mnesia DB' from 'C'. > As per my findings, there are no ODBC drivers available for Mnesia. > So, think need to have some kind of external interface to 'Erlang' like > 'Erl_Interface' which i can use from 'C' program to interact with 'Mnesia > DB'. > > I just want to know if someone has worked on such kind of architecture ? > If yes, can u please share your valuable experiences ? > If no, how feasible and reliable does it seem to you ? > > Waiting for your valuable inputs. > > Thanks and Regards, > Amritpal Singh > > ________________________________ > This message and its attachments contain confidential information and may > also contain legally privileged information. This message is intended > solely for the named addressee. If you are not the addressee indicated in > this message (or authorized to receive for addressee), you may not copy or > deliver any part of this message or its attachments to anyone or use any > part of this message or its attachments. Rather, you should permanently > delete this message and its attachments (and all copies) from your system > and kindly notify the sender by reply e-mail. Any content of this message > and its attachments that does not relate to the official business of > Cellebrum.com Pvt Ltd or its affiliates and/or subsidiaries must be taken > not to have been sent or endorsed by any of them. Opinions and information > in this email that do not relate to the official business of Cellebrum.com > Pvt Ltd, shall be understood as neither given nor endorsed by > Cellebrum.com Pvt Ltd. Any action/proceeding/opportunity upon the contents > of this email taken by not intended addressee shall attract liabilities > both criminal and civil against such addressee. > > Email communications are not private and no warranty is made that e-mail > communications are timely, secure or free from computer virus or other > defect. > _______________________________________________ > erlang-questions mailing list > [hidden email] > http://www.erlang.org/mailman/listinfo/erlang-questions _______________________________________________ erlang-questions mailing list [hidden email] http://www.erlang.org/mailman/listinfo/erlang-questions |
Re: How to use Mnesia Database from C/C++/Java ?
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Søren Hilmer <[hidden email]> wrote:
sh> There is/used to be, something called Mnesia Session for doing sh> exactly this. I think it's been deprecated. The bad news Amritpal will have to implement an interface from scrach. The good news is that it isn't difficult, and there are plenty of protocols to choose from. Mnesia Session used CORBA, which I wouldn't recommend. You could do also the same structured-data things as the old Mnesia Session CORBA via the Sun RPC library that's in Jungerl. Using a simple/RESTful GET/POST/DELETE interface using HTTP is quite simple. Using SOAP wouldn't be much harder, though why you'd want to get XML involved is an excellent question. Also, I've seen least one "memcached" server implementation in Erlang (I forget the author's name but not the language: Japanese). Even easier would be to have your C code use the Erlang term format (see http://www.erlang.org/doc/apps/erl_interface/part_erl_interface_frame.html). At my current employer, the whole Erlang "thing" was new enough that the client team didn't want to use an Erlang-specific wire format, in the event the Erlang experiment failed. So we rolled our own little text, TCP-based protocol. {shrug} I don't know if this list posting contains anything new, but if it's helpful, great. http://www.nabble.com/Mnesia-td10106072.html -Scott _______________________________________________ erlang-questions mailing list [hidden email] http://www.erlang.org/mailman/listinfo/erlang-questions |
Re: How to use Mnesia Database from C/C++/Java ?
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In reply to this post by Michael Gebetsroither
On Jan 21, 2008 5:55 PM, Michael Gebetsroither <[hidden email]> wrote: * Amritpal Singh <[hidden email]> wrote: Indeed SQLite usage would be very close to MySQL. Also BerkeleyDB storage (or memcacheddb) would be very close to mnesia (I have no clue at all on BDB distribution capabilities). Could someone explain where a C binding to Mnesia is really different? is it in for distribution aspect? thanks ludo
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Re: How to use Mnesia Database from C/C++/Java ?
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In reply to this post by Scott Lystig Fritchie
Hello! Yes, Mnesia Session is no longer supported (R12B). Since Mnesia Session was based on dirty operations, you're better of defining an API that maps to the data model. A step by step example you can find here: http://www.erlang.org/doc/apps/orber/ch_idl_to_erlang_mapping.html#6 Or you can use Jinterface and/or Erl_interface, but CORBA makes it easy to hook in another backend due to the number of available language bindings: http://www.puder.org/corba/matrix/ As mentioned there are more alternatives (HTTP, SNMP etc), which is why it's hard to tell which solution would be the best choice for you. /Niclas On Mon, 21 Jan 2008, Scott Lystig Fritchie wrote: > Søren Hilmer <[hidden email]> wrote: > > sh> There is/used to be, something called Mnesia Session for doing > sh> exactly this. > > I think it's been deprecated. > > The bad news Amritpal will have to implement an interface from scrach. > The good news is that it isn't difficult, and there are plenty of > protocols to choose from. Mnesia Session used CORBA, which I wouldn't > recommend. You could do also the same structured-data things as the old > Mnesia Session CORBA via the Sun RPC library that's in Jungerl. > > Using a simple/RESTful GET/POST/DELETE interface using HTTP is quite > simple. Using SOAP wouldn't be much harder, though why you'd want to > get XML involved is an excellent question. Also, I've seen least one > "memcached" server implementation in Erlang (I forget the author's name > but not the language: Japanese). > > Even easier would be to have your C code use the Erlang term format (see > http://www.erlang.org/doc/apps/erl_interface/part_erl_interface_frame.html). > At my current employer, the whole Erlang "thing" was new enough that the > client team didn't want to use an Erlang-specific wire format, in the > event the Erlang experiment failed. So we rolled our own little text, > TCP-based protocol. {shrug} > > I don't know if this list posting contains anything new, but if it's > helpful, great. http://www.nabble.com/Mnesia-td10106072.html > > -Scott > _______________________________________________ > erlang-questions mailing list > [hidden email] > http://www.erlang.org/mailman/listinfo/erlang-questions > _______________________________________________ erlang-questions mailing list [hidden email] http://www.erlang.org/mailman/listinfo/erlang-questions |
Re: How to use Mnesia Database from C/C++/Java ?
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Dear All,
Thanks a lot for sharing your valuable inputs, would decide on this further and discuss with you all. Regards, Amritpal Singh -----Original Message----- From: [hidden email] [mailto:[hidden email]] On Behalf Of Niclas Eklund Sent: 22 January 2008 14:33 To: Scott Lystig Fritchie Cc: [hidden email] Subject: Re: [erlang-questions] How to use Mnesia Database from C/C++/Java ? Hello! Yes, Mnesia Session is no longer supported (R12B). Since Mnesia Session was based on dirty operations, you're better of defining an API that maps to the data model. A step by step example you can find here: http://www.erlang.org/doc/apps/orber/ch_idl_to_erlang_mapping.html#6 Or you can use Jinterface and/or Erl_interface, but CORBA makes it easy to hook in another backend due to the number of available language bindings: http://www.puder.org/corba/matrix/ As mentioned there are more alternatives (HTTP, SNMP etc), which is why it's hard to tell which solution would be the best choice for you. /Niclas On Mon, 21 Jan 2008, Scott Lystig Fritchie wrote: > Søren Hilmer <[hidden email]> wrote: > > sh> There is/used to be, something called Mnesia Session for doing > sh> exactly this. > > I think it's been deprecated. > > The bad news Amritpal will have to implement an interface from scrach. > The good news is that it isn't difficult, and there are plenty of > protocols to choose from. Mnesia Session used CORBA, which I wouldn't > recommend. You could do also the same structured-data things as the old > Mnesia Session CORBA via the Sun RPC library that's in Jungerl. > > Using a simple/RESTful GET/POST/DELETE interface using HTTP is quite > simple. Using SOAP wouldn't be much harder, though why you'd want to > get XML involved is an excellent question. Also, I've seen least one > "memcached" server implementation in Erlang (I forget the author's name > but not the language: Japanese). > > Even easier would be to have your C code use the Erlang term format (see > > At my current employer, the whole Erlang "thing" was new enough that the > client team didn't want to use an Erlang-specific wire format, in the > event the Erlang experiment failed. So we rolled our own little text, > TCP-based protocol. {shrug} > > I don't know if this list posting contains anything new, but if it's > helpful, great. http://www.nabble.com/Mnesia-td10106072.html > > -Scott > _______________________________________________ > erlang-questions mailing list > [hidden email] > http://www.erlang.org/mailman/listinfo/erlang-questions > _______________________________________________ erlang-questions mailing list [hidden email] http://www.erlang.org/mailman/listinfo/erlang-questions This message and its attachments contain confidential information and may also contain legally privileged information. This message is intended solely for the named addressee. If you are not the addressee indicated in this message (or authorized to receive for addressee), you may not copy or deliver any part of this message or its attachments to anyone or use any part of this message or its attachments. Rather, you should permanently delete this message and its attachments (and all copies) from your system and kindly notify the sender by reply e-mail. Any content of this message and its attachments that does not relate to the official business of Cellebrum.com Pvt Ltd or its affiliates and/or subsidiaries must be taken not to have been sent or endorsed by any of them. Opinions and information in this email that do not relate to the official business of Cellebrum.com Pvt Ltd, shall be understood as neither given nor endorsed by Cellebrum.com Pvt Ltd. Any action/proceeding/opportunity upon the contents of this email taken by not intended addressee shall attract liabilities both criminal and civil against such addressee. Email communications are not private and no warranty is made that e-mail communications are timely, secure or free from computer virus or other defect. _______________________________________________ erlang-questions mailing list [hidden email] http://www.erlang.org/mailman/listinfo/erlang-questions |
Re: How to use Mnesia Database from C/C++/Java ?
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In reply to this post by Amritpal Singh-2
Amritpal Singh wrote:
> > Dear All, > > I am completely novice to Erlang, though have been working into > telecom domain for quite some time. > > I have some of my applications like SMSC and others which need > temporary data-storage written in C. > > Till date, i have been using relational databases like ‘MySQL/Oracle’ > for temporary storage purpose. Because of performance constraints i > need to shift this temporary storage to some in-memory database. > > From initial overview, ‘MNESIA’ seems to be perfect replacement for my > scenario. > > Have installed the same and tried to access the same from ‘Erlang’ , > thankfully , have got the success in doing the same. > > Now, my problem is , i don’t want to change the core of my application > which is already encoded in ‘C’ , so need to access ‘Mnesia DB’ from ‘C’. > > As per my findings, there are no ODBC drivers available for Mnesia. > > So, think need to have some kind of external interface to ‘Erlang’ > like ‘Erl_Interface’ which i can use from ‘C’ program to interact with > ‘Mnesia DB’. > > I just want to know if someone has worked on such kind of architecture ? > > If yes, can u please share your valuable experiences ? > > If no, how feasible and reliable does it seem to you ? > > Waiting for your valuable inputs. > > Thanks and Regards, > > Amritpal Singh > > > ------------------------------------------------------------------------ > This message and its attachments contain confidential information and > may also contain legally privileged information. This message is > intended solely for the named addressee. If you are not the addressee > indicated in this message (or authorized to receive for addressee), > you may not copy or deliver any part of this message or its > attachments to anyone or use any part of this message or its > attachments. Rather, you should permanently delete this message and > its attachments (and all copies) from your system and kindly notify > the sender by reply e-mail. Any content of this message and its > attachments that does not relate to the official business of > Cellebrum.com Pvt Ltd or its affiliates and/or subsidiaries must be > taken not to have been sent or endorsed by any of them. Opinions and > information in this email that do not relate to the official business > of Cellebrum.com Pvt Ltd, shall be understood as neither given nor > endorsed by Cellebrum.com Pvt Ltd. Any action/proceeding/opportunity > upon the contents of this email taken by not intended addressee shall > attract liabilities both criminal and civil against such addressee. > > Email communications are not private and no warranty is made that > e-mail communications are timely, secure or free from computer virus > or other defect. > ------------------------------------------------------------------------ > > _______________________________________________ > erlang-questions mailing list > [hidden email] > http://www.erlang.org/mailman/listinfo/erlang-questions Have you had a chance to look at couchdb - http://incubator.apache.org/couchdb It should work with any language, primarily because it has a ReST interface. Maybe this could help? Kiran _______________________________________________ erlang-questions mailing list [hidden email] http://www.erlang.org/mailman/listinfo/erlang-questions |
Re: How to use Mnesia Database from C/C++/Java ?
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I can't found mnesia_session in R12B documentation. Is it obsoleted?
On Thu, Mar 27, 2008 at 9:57 AM, Kiran Subbaraman <[hidden email]> wrote: Amritpal Singh wrote: -- --Hynek (Pichi) Vychodil _______________________________________________ erlang-questions mailing list [hidden email] http://www.erlang.org/mailman/listinfo/erlang-questions |
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It was removed in the latest release, wasn't it?
On Mar 27, 2008, at 6:04 AM, Hynek Vychodil wrote: > I can't found mnesia_session in R12B documentation. Is it obsoleted? > > On Thu, Mar 27, 2008 at 9:57 AM, Kiran Subbaraman > <[hidden email]> wrote: > Amritpal Singh wrote: > > > > Dear All, > > > > I am completely novice to Erlang, though have been working into > > telecom domain for quite some time. > > > > I have some of my applications like SMSC and others which need > > temporary data-storage written in C. > > > > Till date, i have been using relational databases like 'MySQL/ > Oracle' > > for temporary storage purpose. Because of performance constraints i > > need to shift this temporary storage to some in-memory database. > > > > From initial overview, 'MNESIA' seems to be perfect replacement > for my > > scenario. > > > > Have installed the same and tried to access the same from 'Erlang' , > > thankfully , have got the success in doing the same. > > > > Now, my problem is , i don't want to change the core of my > application > > which is already encoded in 'C' , so need to access 'Mnesia DB' > from 'C'. > > > > As per my findings, there are no ODBC drivers available for Mnesia. > > > > So, think need to have some kind of external interface to 'Erlang' > > like 'Erl_Interface' which i can use from 'C' program to interact > with > > 'Mnesia DB'. > > > > I just want to know if someone has worked on such kind of > architecture ? > > > > If yes, can u please share your valuable experiences ? > > > > If no, how feasible and reliable does it seem to you ? > > > > Waiting for your valuable inputs. > > > > Thanks and Regards, > > > > Amritpal Singh > > > > > > > ---------------------------------------------------------------------- > -- > > This message and its attachments contain confidential information > and > > may also contain legally privileged information. This message is > > intended solely for the named addressee. If you are not the > addressee > > indicated in this message (or authorized to receive for addressee), > > you may not copy or deliver any part of this message or its > > attachments to anyone or use any part of this message or its > > attachments. Rather, you should permanently delete this message and > > its attachments (and all copies) from your system and kindly notify > > the sender by reply e-mail. Any content of this message and its > > attachments that does not relate to the official business of > > Cellebrum.com Pvt Ltd or its affiliates and/or subsidiaries must be > > taken not to have been sent or endorsed by any of them. Opinions and > > information in this email that do not relate to the official > business > > of Cellebrum.com Pvt Ltd, shall be understood as neither given nor > > endorsed by Cellebrum.com Pvt Ltd. Any action/proceeding/opportunity > > upon the contents of this email taken by not intended addressee > shall > > attract liabilities both criminal and civil against such addressee. > > > > Email communications are not private and no warranty is made that > > e-mail communications are timely, secure or free from computer virus > > or other defect. > > > ---------------------------------------------------------------------- > -- > > > > _______________________________________________ > > erlang-questions mailing list > > [hidden email] > > http://www.erlang.org/mailman/listinfo/erlang-questions > Amritpal, > Have you had a chance to look at couchdb - > http://incubator.apache.org/couchdb > It should work with any language, primarily because it has a ReST > interface. > Maybe this could help? > Kiran > > _______________________________________________ > erlang-questions mailing list > [hidden email] > http://www.erlang.org/mailman/listinfo/erlang-questions > > > > -- > --Hynek (Pichi) Vychodil > _______________________________________________ > erlang-questions mailing list > [hidden email] > http://www.erlang.org/mailman/listinfo/erlang-questions _______________________________________________ erlang-questions mailing list [hidden email] http://www.erlang.org/mailman/listinfo/erlang-questions |
Re: How to use Mnesia Database from C/C++/Java ?
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looks like
On Thu, Mar 27, 2008 at 6:10 PM, <[hidden email]> wrote: It was removed in the latest release, wasn't it? -- --Hynek (Pichi) Vychodil _______________________________________________ erlang-questions mailing list [hidden email] http://www.erlang.org/mailman/listinfo/erlang-questions |
Re: How to use Mnesia Database from C/C++/Java ?
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Hi, yes the last version of it was on R11-B5. Regards, looks like
Be a better friend, newshound, and know-it-all with Yahoo! Mobile. Try it now. _______________________________________________ erlang-questions mailing list [hidden email] http://www.erlang.org/mailman/listinfo/erlang-questions |
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Was it replaced by something else?
On Mar 27, 2008, at 2:17 PM, ayman abolfadl wrote: > Hi, > > yes the last version of it was on R11-B5. > > Regards, > > Ayman Abolfadl > > Hynek Vychodil <[hidden email]> wrote: > looks like > > On Thu, Mar 27, 2008 at 6:10 PM, <[hidden email]> wrote: > It was removed in the latest release, wasn't it? > > On Mar 27, 2008, at 6:04 AM, Hynek Vychodil wrote: > > I can't found mnesia_session in R12B documentation. Is it obsoleted? > > > > On Thu, Mar 27, 2008 at 9:57 AM, Kiran Subbaraman > > <[hidden email]> wrote: > > Amritpal Singh wrote: > > > > > > Dear All, > > > > > > I am completely novice to Erlang, though have been working into > > > telecom domain for quite some time. > > > > > > I have some of my applications like SMSC and others which need > > > temporary data-storage written in C. > > > > > > Till date, i have been using relational databases like 'MySQL/ > > Oracle' > > > for temporary storage purpose. Because of performance > constraints i > > > need to shift this temporary storage to some in-memory database. > > > > > > From initial overview, 'MNESIA' seems to be perfect replacement > > for my > > > scenario. > > > > > > Have installed the same and tried to access the same from > 'Erlang' , > > > thankfully , have got the success in doing the same. > > > > > > Now, my problem is , i don't want to change the core of my > > application > > > which is already encoded in 'C' , so need to access 'Mnesia DB' > > from 'C'. > > > > > > As per my findings, there are no ODBC drivers available for > Mnesia. > > > > > > So, think need to have some kind of external interface to 'Erlang' > > > like 'Erl_Interface' which i can use from 'C' program to interact > > with > > > 'Mnesia DB'. > > > > > > I just want to know if someone has worked on such kind of > > architecture ? > > > > > > If yes, can u please share your valuable experiences ? > > > > > > If no, how feasible and reliable does it seem to you ? > > > > > > Waiting for your valuable inputs. > > > > > > Thanks and Regards, > > > > > > Amritpal Singh > > > > > > > > > > > > ---------------------------------------------------------------------- > > -- > > > This message and its attachments contain confidential information > > and > > > may also contain legally privileged information. This message is > > > intended solely for the named addressee. If you are not the > > addressee > > > indicated in this message (or authorized to receive for > addressee), > > > you may not copy or deliver any part of this message or its > > > attachments to anyone or use any part of this message or its > > > attachments. Rather, you should permanently delete this message > and > > > its attachments (and all copies) from your system and kindly > notify > > > the sender by reply e-mail. Any content of this message and its > > > attachments that does not relate to the official business of > > > Cellebrum.com Pvt Ltd or its affiliates and/or subsidiaries > must be > > > taken not to have been sent or endorsed by any of them. > Opinions and > > > information in this email that do not relate to the official > > business > > > of Cellebrum.com Pvt Ltd, shall be understood as neither given nor > > > endorsed by Cellebrum.com Pvt Ltd. Any action/proceeding/ > opportunity > > > upon the contents of this email taken by not intended addressee > > shall > > > attract liabilities both criminal and civil against such > addressee. > > > > > > Email communications are not private and no warranty is made that > > > e-mail communications are timely, secure or free from computer > virus > > > or other defect. > > > > > > ---------------------------------------------------------------------- > > -- > > > > > > _______________________________________________ > > > erlang-questions mailing list > > > [hidden email] > > > http://www.erlang.org/mailman/listinfo/erlang-questions > > Amritpal, > > Have you had a chance to look at couchdb - > > http://incubator.apache.org/couchdb > > It should work with any language, primarily because it has a ReST > > interface. > > Maybe this could help? > > Kiran > > > > _______________________________________________ > > erlang-questions mailing list > > [hidden email] > > http://www.erlang.org/mailman/listinfo/erlang-questions > > > > > > > > -- > > --Hynek (Pichi) Vychodil > > _______________________________________________ > > erlang-questions mailing list > > [hidden email] > > http://www.erlang.org/mailman/listinfo/erlang-questions > > > > > -- > --Hynek (Pichi) Vychodil > _______________________________________________ > erlang-questions mailing list > [hidden email] > http://www.erlang.org/mailman/listinfo/erlang-questions > > Be a better friend, newshound, and know-it-all with Yahoo! Mobile. > Try it now. > _______________________________________________ > erlang-questions mailing list > [hidden email] > http://www.erlang.org/mailman/listinfo/erlang-questions _______________________________________________ erlang-questions mailing list [hidden email] http://www.erlang.org/mailman/listinfo/erlang-questions |
Re: How to use Mnesia Database from C/C++/Java ?
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Mnesia session was only good as an example of how to write a corba/ei/java interface to
mnesia, to get a good interface/api you would need to write your own tailor made one anyway (application and data specific), so we decided to remove some of the dead meat in erlang/OTP. You can still compile and maintain it for R12 and it should work. /Dan [hidden email] wrote: > Was it replaced by something else? > > On Mar 27, 2008, at 2:17 PM, ayman abolfadl wrote: >> Hi, >> >> yes the last version of it was on R11-B5. >> >> Regards, >> >> Ayman Abolfadl >> >> Hynek Vychodil <[hidden email]> wrote: >> looks like >> >> On Thu, Mar 27, 2008 at 6:10 PM, <[hidden email]> wrote: >> It was removed in the latest release, wasn't it? >> >> On Mar 27, 2008, at 6:04 AM, Hynek Vychodil wrote: >>> I can't found mnesia_session in R12B documentation. Is it obsoleted? >>> >>> On Thu, Mar 27, 2008 at 9:57 AM, Kiran Subbaraman >>> <[hidden email]> wrote: >>> Amritpal Singh wrote: >>>> Dear All, >>>> >>>> I am completely novice to Erlang, though have been working into >>>> telecom domain for quite some time. >>>> >>>> I have some of my applications like SMSC and others which need >>>> temporary data-storage written in C. >>>> >>>> Till date, i have been using relational databases like 'MySQL/ >>> Oracle' >>>> for temporary storage purpose. Because of performance >> constraints i >>>> need to shift this temporary storage to some in-memory database. >>>> >>>> From initial overview, 'MNESIA' seems to be perfect replacement >>> for my >>>> scenario. >>>> >>>> Have installed the same and tried to access the same from >> 'Erlang' , >>>> thankfully , have got the success in doing the same. >>>> >>>> Now, my problem is , i don't want to change the core of my >>> application >>>> which is already encoded in 'C' , so need to access 'Mnesia DB' >>> from 'C'. >>>> As per my findings, there are no ODBC drivers available for >> Mnesia. >>>> So, think need to have some kind of external interface to 'Erlang' >>>> like 'Erl_Interface' which i can use from 'C' program to interact >>> with >>>> 'Mnesia DB'. >>>> >>>> I just want to know if someone has worked on such kind of >>> architecture ? >>>> If yes, can u please share your valuable experiences ? >>>> >>>> If no, how feasible and reliable does it seem to you ? >>>> >>>> Waiting for your valuable inputs. >>>> >>>> Thanks and Regards, >>>> >>>> Amritpal Singh >>>> >>>> >>>> >>> >> ---------------------------------------------------------------------- >>> -- >>>> This message and its attachments contain confidential information >>> and >>>> may also contain legally privileged information. This message is >>>> intended solely for the named addressee. If you are not the >>> addressee >>>> indicated in this message (or authorized to receive for >> addressee), >>>> you may not copy or deliver any part of this message or its >>>> attachments to anyone or use any part of this message or its >>>> attachments. Rather, you should permanently delete this message >> and >>>> its attachments (and all copies) from your system and kindly >> notify >>>> the sender by reply e-mail. Any content of this message and its >>>> attachments that does not relate to the official business of >>>> Cellebrum.com Pvt Ltd or its affiliates and/or subsidiaries >> must be >>>> taken not to have been sent or endorsed by any of them. >> Opinions and >>>> information in this email that do not relate to the official >>> business >>>> of Cellebrum.com Pvt Ltd, shall be understood as neither given nor >>>> endorsed by Cellebrum.com Pvt Ltd. Any action/proceeding/ >> opportunity >>>> upon the contents of this email taken by not intended addressee >>> shall >>>> attract liabilities both criminal and civil against such >> addressee. >>>> Email communications are not private and no warranty is made that >>>> e-mail communications are timely, secure or free from computer >> virus >>>> or other defect. >>>> >>> >> ---------------------------------------------------------------------- >>> -- >>>> _______________________________________________ >>>> erlang-questions mailing list >>>> [hidden email] >>>> http://www.erlang.org/mailman/listinfo/erlang-questions >>> Amritpal, >>> Have you had a chance to look at couchdb - >>> http://incubator.apache.org/couchdb >>> It should work with any language, primarily because it has a ReST >>> interface. >>> Maybe this could help? >>> Kiran >>> >>> _______________________________________________ >>> erlang-questions mailing list >>> [hidden email] >>> http://www.erlang.org/mailman/listinfo/erlang-questions >>> >>> >>> >>> -- >>> --Hynek (Pichi) Vychodil >>> _______________________________________________ >>> erlang-questions mailing list >>> [hidden email] >>> http://www.erlang.org/mailman/listinfo/erlang-questions >> >> >> >> -- >> --Hynek (Pichi) Vychodil >> _______________________________________________ >> erlang-questions mailing list >> [hidden email] >> http://www.erlang.org/mailman/listinfo/erlang-questions >> >> Be a better friend, newshound, and know-it-all with Yahoo! Mobile. >> Try it now. >> _______________________________________________ >> erlang-questions mailing list >> [hidden email] >> http://www.erlang.org/mailman/listinfo/erlang-questions > > _______________________________________________ > erlang-questions mailing list > [hidden email] > http://www.erlang.org/mailman/listinfo/erlang-questions > erlang-questions mailing list [hidden email] http://www.erlang.org/mailman/listinfo/erlang-questions |
Re: How to use Mnesia Database from C/C++/Java ?
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In reply to this post by Kiran Subbaraman-2
or if you need something in memory try sqlite
On 3/27/08, Kiran Subbaraman <[hidden email]> wrote: > Amritpal Singh wrote: > > > > Dear All, > > > > I am completely novice to Erlang, though have been working into > > telecom domain for quite some time. > > > > I have some of my applications like SMSC and others which need > > temporary data-storage written in C. > > > > Till date, i have been using relational databases like 'MySQL/Oracle' > > for temporary storage purpose. Because of performance constraints i > > need to shift this temporary storage to some in-memory database. > > > > From initial overview, 'MNESIA' seems to be perfect replacement for my > > scenario. > > > > Have installed the same and tried to access the same from 'Erlang' , > > thankfully , have got the success in doing the same. > > > > Now, my problem is , i don't want to change the core of my application > > which is already encoded in 'C' , so need to access 'Mnesia DB' from 'C'. > > > > As per my findings, there are no ODBC drivers available for Mnesia. > > > > So, think need to have some kind of external interface to 'Erlang' > > like 'Erl_Interface' which i can use from 'C' program to interact with > > 'Mnesia DB'. > > > > I just want to know if someone has worked on such kind of architecture ? > > > > If yes, can u please share your valuable experiences ? > > > > If no, how feasible and reliable does it seem to you ? > > > > Waiting for your valuable inputs. > > > > Thanks and Regards, > > > > Amritpal Singh > > > > > > ------------------------------------------------------------------------ > > This message and its attachments contain confidential information and > > may also contain legally privileged information. This message is > > intended solely for the named addressee. If you are not the addressee > > indicated in this message (or authorized to receive for addressee), > > you may not copy or deliver any part of this message or its > > attachments to anyone or use any part of this message or its > > attachments. Rather, you should permanently delete this message and > > its attachments (and all copies) from your system and kindly notify > > the sender by reply e-mail. Any content of this message and its > > attachments that does not relate to the official business of > > Cellebrum.com Pvt Ltd or its affiliates and/or subsidiaries must be > > taken not to have been sent or endorsed by any of them. Opinions and > > information in this email that do not relate to the official business > > of Cellebrum.com Pvt Ltd, shall be understood as neither given nor > > endorsed by Cellebrum.com Pvt Ltd. Any action/proceeding/opportunity > > upon the contents of this email taken by not intended addressee shall > > attract liabilities both criminal and civil against such addressee. > > > > Email communications are not private and no warranty is made that > > e-mail communications are timely, secure or free from computer virus > > or other defect. > > ------------------------------------------------------------------------ > > > > _______________________________________________ > > erlang-questions mailing list > > [hidden email] > > http://www.erlang.org/mailman/listinfo/erlang-questions > Amritpal, > Have you had a chance to look at couchdb - > http://incubator.apache.org/couchdb > It should work with any language, primarily because it has a ReST interface. > Maybe this could help? > Kiran > > _______________________________________________ > erlang-questions mailing list > [hidden email] > http://www.erlang.org/mailman/listinfo/erlang-questions > erlang-questions mailing list [hidden email] http://www.erlang.org/mailman/listinfo/erlang-questions |
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In reply to this post by Amritpal Singh-2
Basically a SMSC has many hardware and its associated software modules. An advanced smsc has for example database modules, operation and maintenance modules, smpp agent modules, sm query modules, charging modules each being run by software/application. You can check out one of the example of such advanced smsc architecture to learn more in details.
See here: SMSC Hardware , SMSC Software , SMSC Server , SMPP Server you can also contact me for details |
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