Re: [Firebird-devel] Transaction type
Ok, I have a patch with my changes, but I don't know if this list accepts attachments (102 kb). Or maybe there's some user space at SF for each account, I don't know. C. -- Live Security Virtual Conference Exclusive live event will cover all the ways today's security and threat landscape has changed and how IT managers can respond. Discussions will include endpoint security, mobile security and the latest in malware threats. http://www.accelacomm.com/jaw/sfrnl04242012/114/50122263/ Firebird-Devel mailing list, web interface at https://lists.sourceforge.net/lists/listinfo/firebird-devel
Re: [Firebird-devel] Transaction type
-Original Message- From: Alex Peshkoff [mailto:peshk...@mail.ru] Sent: Lunes, 16 de Abril de 2012 7:22 'Hard' limit can be reached only by gbak's attachment. I.e. with transaction ID use of ~0 as special condition should be OK. Certainly, check for 'hard' limit should be done taking that into an account. Ok, I would like to create a type. If typedef ULONG TxnType; is too awkward, suggest something better. Second, is the transaction type something exclusive to JRD? If yes, it can be defined in Jrd; if not, it will have to be defined in fb_types.h because I don't want to deal with circular dependencies. C. -- Better than sec? Nothing is better than sec when it comes to monitoring Big Data applications. Try Boundary one-second resolution app monitoring today. Free. http://p.sf.net/sfu/Boundary-dev2dev Firebird-Devel mailing list, web interface at https://lists.sourceforge.net/lists/listinfo/firebird-devel
Re: [Firebird-devel] Transaction type
17.04.2012 12:53, Claudio Valderrama C. wrote: Ok, I would like to create a type. If typedef ULONG TxnType; is too awkward, suggest something better. Because it is not a transaction itself, but only it's id, I would suggest tid_t... -- SY, SD. -- Better than sec? Nothing is better than sec when it comes to monitoring Big Data applications. Try Boundary one-second resolution app monitoring today. Free. http://p.sf.net/sfu/Boundary-dev2dev Firebird-Devel mailing list, web interface at https://lists.sourceforge.net/lists/listinfo/firebird-devel
Re: [Firebird-devel] Transaction type
Ok, I would like to create a type. If typedef ULONG TxnType; is too awkward, suggest something better. Don't name it TxnType, please. It is transaction *number* and not an isolation level, for example. We already have RecordNumber and PageNumber, let be consistent. Regards, Vlad -- Better than sec? Nothing is better than sec when it comes to monitoring Big Data applications. Try Boundary one-second resolution app monitoring today. Free. http://p.sf.net/sfu/Boundary-dev2dev Firebird-Devel mailing list, web interface at https://lists.sourceforge.net/lists/listinfo/firebird-devel
Re: [Firebird-devel] Transaction type
17.04.2012 14:53, Claudio Valderrama C. wrote: Ok, I would like to create a type. If typedef ULONG TxnType; is too awkward, suggest something better. TxnId or txn_id_t or something like that. Dmitry -- Better than sec? Nothing is better than sec when it comes to monitoring Big Data applications. Try Boundary one-second resolution app monitoring today. Free. http://p.sf.net/sfu/Boundary-dev2dev Firebird-Devel mailing list, web interface at https://lists.sourceforge.net/lists/listinfo/firebird-devel
Re: [Firebird-devel] Transaction type
On 04/17/12 14:53, Claudio Valderrama C. wrote: Second, is the transaction type something exclusive to JRD? If yes, it can be defined in Jrd; if not, it will have to be defined in fb_types.h because I don't want to deal with circular dependencies. It can get out from jrd in at least 2 cases - in system context variable and in monitoring tables. But this 2 do not require defining in fb_types.h. -- Better than sec? Nothing is better than sec when it comes to monitoring Big Data applications. Try Boundary one-second resolution app monitoring today. Free. http://p.sf.net/sfu/Boundary-dev2dev Firebird-Devel mailing list, web interface at https://lists.sourceforge.net/lists/listinfo/firebird-devel
Re: [Firebird-devel] Transaction type
17.04.2012 12:12, Alex Peshkoff wrote: It can get out from jrd in at least 2 cases - in system context variable and in monitoring tables. Also in the results of isc_transaction_info and isc_database_info. -- SY, SD. -- Better than sec? Nothing is better than sec when it comes to monitoring Big Data applications. Try Boundary one-second resolution app monitoring today. Free. http://p.sf.net/sfu/Boundary-dev2dev Firebird-Devel mailing list, web interface at https://lists.sourceforge.net/lists/listinfo/firebird-devel
Re: [Firebird-devel] Transaction type
17.04.2012 14:53, Claudio Valderrama C. wrote: Ok, I would like to create a type. If typedef ULONG TxnType; is too awkward, suggest something better. TxnId or txn_id_t or something like that. Look, currently we have SLONG tra_number; // transaction number compare it with TxnTypetra_number; or TxnIdtra_number; or TraNumber tra_number; Regards, Vlad PS I hope we will not going to rename tra_number ? -- Better than sec? Nothing is better than sec when it comes to monitoring Big Data applications. Try Boundary one-second resolution app monitoring today. Free. http://p.sf.net/sfu/Boundary-dev2dev Firebird-Devel mailing list, web interface at https://lists.sourceforge.net/lists/listinfo/firebird-devel
Re: [Firebird-devel] Transaction type
17.04.2012 14:20, Vlad Khorsun wrote: TraNumber tra_number; From another side, it's isc_info_tra_id in API, TRANSACTION_ID in context variables and MON$TRANSACTION_ID in the monitoring tables :-) As for me, both Id and Number are acceptable as suffixes. Just please don't make it TraType/TxnType. Dmitry -- Better than sec? Nothing is better than sec when it comes to monitoring Big Data applications. Try Boundary one-second resolution app monitoring today. Free. http://p.sf.net/sfu/Boundary-dev2dev Firebird-Devel mailing list, web interface at https://lists.sourceforge.net/lists/listinfo/firebird-devel
Re: [Firebird-devel] Transaction type
17.04.2012 14:20, Vlad Khorsun wrote: TraNumber tra_number; From another side, it's isc_info_tra_id in API, TRANSACTION_ID in context variables and MON$TRANSACTION_ID in the monitoring tables :-) This is another important point. There is user POV and user (public) data types, such as ISC_SLONG, ISC_QUAD, etc, and there is internal engine POV and engine data types and first is not necessary exactly matches second one. Lets not mix things more than absolutely needed. As for me, both Id and Number are acceptable as suffixes. Just please don't make it TraType/TxnType. I'm not insist in Number over ID but Number looks more consistent for me... Regards, Vlad -- Better than sec? Nothing is better than sec when it comes to monitoring Big Data applications. Try Boundary one-second resolution app monitoring today. Free. http://p.sf.net/sfu/Boundary-dev2dev Firebird-Devel mailing list, web interface at https://lists.sourceforge.net/lists/listinfo/firebird-devel
Re: [Firebird-devel] Transaction type
-Original Message- From: Vlad Khorsun [mailto:hv...@users.sourceforge.net] Sent: Martes, 17 de Abril de 2012 7:05 I'm not insist in Number over ID but Number looks more consistent for me... What a sensitive matter! :-) Ok, let's use TxnNumber or TraNumber; should I define it in JRD? As I see, this definition will be only useful for JRD, unless some of you insist that I put it in fb_types.h. Second, following the same reasoning, should I rename StreamType to StreamNumber, too? For historical inertia, I tend to use TSomething, but since we don't follow that convention, I preferred StreamType to TStream and I don't like full uppercase for types. C. -- Better than sec? Nothing is better than sec when it comes to monitoring Big Data applications. Try Boundary one-second resolution app monitoring today. Free. http://p.sf.net/sfu/Boundary-dev2dev Firebird-Devel mailing list, web interface at https://lists.sourceforge.net/lists/listinfo/firebird-devel
Re: [Firebird-devel] Transaction type
17.04.2012 16:34, Claudio Valderrama C. wrote: Ok, let's use TxnNumber or TraNumber; should I define it in JRD? As I see, this definition will be only useful for JRD, unless some of you insist that I put it in fb_types.h. JRD should be okay. Second, following the same reasoning, should I rename StreamType to StreamNumber, too? It sounds as a good idea ;-) Dmitry -- Better than sec? Nothing is better than sec when it comes to monitoring Big Data applications. Try Boundary one-second resolution app monitoring today. Free. http://p.sf.net/sfu/Boundary-dev2dev Firebird-Devel mailing list, web interface at https://lists.sourceforge.net/lists/listinfo/firebird-devel
Re: [Firebird-devel] Transaction type
-Original Message- From: Dmitry Yemanov [mailto:firebi...@yandex.ru] Sent: Martes, 17 de Abril de 2012 7:44 17.04.2012 16:34, Claudio Valderrama C. wrote: Ok, let's use TxnNumber or TraNumber; should I define it in JRD? As I see, this definition will be only useful for JRD, unless some of you insist that I put it in fb_types.h. JRD should be okay. Second, following the same reasoning, should I rename StreamType to StreamNumber, too? It sounds as a good idea ;-) Ok, it seems as if we can agree before the next quake hits my country. I'm getting bored of being shaken these days. http://earthquake.usgs.gov/earthquakes/?source=sitenav C. -- Better than sec? Nothing is better than sec when it comes to monitoring Big Data applications. Try Boundary one-second resolution app monitoring today. Free. http://p.sf.net/sfu/Boundary-dev2dev Firebird-Devel mailing list, web interface at https://lists.sourceforge.net/lists/listinfo/firebird-devel
Re: [Firebird-devel] Transaction type
On 04/15/12 13:50, Claudio Valderrama C. wrote: Those functions use -1 to indicate a special condition. It's nice to use ~0 as a special condition instead -1. -- For Developers, A Lot Can Happen In A Second. Boundary is the first to Know...and Tell You. Monitor Your Applications in Ultra-Fine Resolution. Try it FREE! http://p.sf.net/sfu/Boundary-d2dvs2 Firebird-Devel mailing list, web interface at https://lists.sourceforge.net/lists/listinfo/firebird-devel
Re: [Firebird-devel] Transaction type
-Original Message- From: Alex Peshkoff [mailto:peshk...@mail.ru] Sent: Lunes, 16 de Abril de 2012 3:00 On 04/15/12 13:50, Claudio Valderrama C. wrote: Those functions use -1 to indicate a special condition. It's nice to use ~0 as a special condition instead -1. The problem with those solutions is that they assume the max value cannot be reached normally. Are we sure in this case? C. -- For Developers, A Lot Can Happen In A Second. Boundary is the first to Know...and Tell You. Monitor Your Applications in Ultra-Fine Resolution. Try it FREE! http://p.sf.net/sfu/Boundary-d2dvs2 Firebird-Devel mailing list, web interface at https://lists.sourceforge.net/lists/listinfo/firebird-devel
Re: [Firebird-devel] Transaction type
On 04/16/12 12:55, Claudio Valderrama C. wrote: -Original Message- From: Alex Peshkoff [mailto:peshk...@mail.ru] Sent: Lunes, 16 de Abril de 2012 3:00 On 04/15/12 13:50, Claudio Valderrama C. wrote: Those functions use -1 to indicate a special condition. It's nice to use ~0 as a special condition instead -1. The problem with those solutions is that they assume the max value cannot be reached normally. Are we sure in this case? This depends upon our code checking the case when transaction ID is reaching it's upper limit. As far as I remember, currently we have a kind of 'soft' limit trying to stop with reserve about 8 or 16 transactions to make it possible to perform database's backup. 'Hard' limit can be reached only by gbak's attachment. I.e. with transaction ID use of ~0 as special condition should be OK. Certainly, check for 'hard' limit should be done taking that into an account. -- For Developers, A Lot Can Happen In A Second. Boundary is the first to Know...and Tell You. Monitor Your Applications in Ultra-Fine Resolution. Try it FREE! http://p.sf.net/sfu/Boundary-d2dvs2 Firebird-Devel mailing list, web interface at https://lists.sourceforge.net/lists/listinfo/firebird-devel
Re: [Firebird-devel] Transaction type
16.04.2012 13:21, Alex Peshkoff wrote: I.e. with transaction ID use of ~0 as special condition should be OK. Doesn't internal transaction have id 0? -- SY, SD. -- For Developers, A Lot Can Happen In A Second. Boundary is the first to Know...and Tell You. Monitor Your Applications in Ultra-Fine Resolution. Try it FREE! http://p.sf.net/sfu/Boundary-d2dvs2 Firebird-Devel mailing list, web interface at https://lists.sourceforge.net/lists/listinfo/firebird-devel
Re: [Firebird-devel] Transaction type
On 04/16/12 15:25, Dimitry Sibiryakov wrote: 16.04.2012 13:21, Alex Peshkoff wrote: I.e. with transaction ID use of ~0 as special condition should be OK. Doesn't internal transaction have id 0? Yes, system transaction has ID == 0. How is it related? -- For Developers, A Lot Can Happen In A Second. Boundary is the first to Know...and Tell You. Monitor Your Applications in Ultra-Fine Resolution. Try it FREE! http://p.sf.net/sfu/Boundary-d2dvs2 Firebird-Devel mailing list, web interface at https://lists.sourceforge.net/lists/listinfo/firebird-devel
Re: [Firebird-devel] Transaction type
-Original Message- From: Dimitry Sibiryakov [mailto:s...@ibphoenix.com] Sent: Lunes, 16 de Abril de 2012 7:25 16.04.2012 13:21, Alex Peshkoff wrote: I.e. with transaction ID use of ~0 as special condition should be OK. Doesn't internal transaction have id 0? Alex wrote ~0 instead of 0, did you notice it? C. -- For Developers, A Lot Can Happen In A Second. Boundary is the first to Know...and Tell You. Monitor Your Applications in Ultra-Fine Resolution. Try it FREE! http://p.sf.net/sfu/Boundary-d2dvs2 Firebird-Devel mailing list, web interface at https://lists.sourceforge.net/lists/listinfo/firebird-devel
Re: [Firebird-devel] Transaction type
16.04.2012 15:38, Dimitry Sibiryakov wrote: Not related if system transaction is never passed to these functions. 0 ~0 Dmitry -- For Developers, A Lot Can Happen In A Second. Boundary is the first to Know...and Tell You. Monitor Your Applications in Ultra-Fine Resolution. Try it FREE! http://p.sf.net/sfu/Boundary-d2dvs2 Firebird-Devel mailing list, web interface at https://lists.sourceforge.net/lists/listinfo/firebird-devel
Re: [Firebird-devel] Transaction type
16.04.2012 14:45, Claudio Valderrama C. wrote: Alex wrote ~0 instead of 0, did you notice it? Oops, my fault. :((( -- SY, SD. -- For Developers, A Lot Can Happen In A Second. Boundary is the first to Know...and Tell You. Monitor Your Applications in Ultra-Fine Resolution. Try it FREE! http://p.sf.net/sfu/Boundary-d2dvs2 Firebird-Devel mailing list, web interface at https://lists.sourceforge.net/lists/listinfo/firebird-devel
Re: [Firebird-devel] Transaction type
-Original Message- From: Dimitry Sibiryakov [mailto:s...@ibphoenix.com] Sent: Lunes, 16 de Abril de 2012 7:47 16.04.2012 14:45, Claudio Valderrama C. wrote: Alex wrote ~0 instead of 0, did you notice it? Oops, my fault. :((( The strange case of Mr ~ and its tricks, trying to fool people. (In the previous sentence, Jim would replace ~ by Bush.) C. -- For Developers, A Lot Can Happen In A Second. Boundary is the first to Know...and Tell You. Monitor Your Applications in Ultra-Fine Resolution. Try it FREE! http://p.sf.net/sfu/Boundary-d2dvs2 Firebird-Devel mailing list, web interface at https://lists.sourceforge.net/lists/listinfo/firebird-devel
Re: [Firebird-devel] Transaction type
-Original Message-
From: Dmitry Yemanov [mailto:firebi...@yandex.ru]
Sent: Sábado, 14 de Abril de 2012 1:26
Claudio,
Hello, for a long time I've been thinking in creating a
TxnType (or whatever
name) to hold the type of a transaction, so it could be changed for
experimentation in the future. This type would be ULONG for
now (although I
found some cases where we still use SLONG).
We have *a lot* of places where it's still SLONG. So I'd start with
making it globally unsigned.
Things get really interesting with code like this:
class RelationPages
{
public:
vcl*rel_pages; // vector of pointer page
numbers
SLONG rel_instance_id;// 0 or att_attachment_id or
tra_number
Attachment's id and related functions use SLONG and maybe they don't need
more, but the same var can contain tra id. And then
// global temporary relations attributes
RelationPages* getPages(thread_db* tdbb, SLONG tran = -1, bool allocPages =
true);
booldelPages(thread_db* tdbb, SLONG tran = -1,
RelationPages* aPages = 0);
Those functions use -1 to indicate a special condition.
I can attempt the change to unsigned, but I don't know if Firebird will
explode in flames.
;-)
C.
--
For Developers, A Lot Can Happen In A Second.
Boundary is the first to Know...and Tell You.
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Re: [Firebird-devel] Transaction type
Claudio, Hello, for a long time I've been thinking in creating a TxnType (or whatever name) to hold the type of a transaction, so it could be changed for experimentation in the future. This type would be ULONG for now (although I found some cases where we still use SLONG). We have *a lot* of places where it's still SLONG. So I'd start with making it globally unsigned. As for changing its type, this is still questionable. I'm playing with 64-bit IDs for a while and I'm not yet confident this is the preferred approach for the future. I'd prefer to keep it as ULONG until we really know what we're going to do. Dmitry -- For Developers, A Lot Can Happen In A Second. Boundary is the first to Know...and Tell You. Monitor Your Applications in Ultra-Fine Resolution. Try it FREE! http://p.sf.net/sfu/Boundary-d2dvs2 Firebird-Devel mailing list, web interface at https://lists.sourceforge.net/lists/listinfo/firebird-devel
