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Re: change process variable while process is running

by Richard O'Keefe

Code fragments are by definition incomplete. SharedQueue with a "d". On Sun, 28 Mar 2021 at 03:38, <mspgate(a)gmail.com> wrote: > thanks! I am now sure I am using the highest priority. > > one last question about this, maybe very newbie nut I would like to > understand things. > > so, in your code example for the Process using the ShareQueue and in my > running demo, the ShareQueues are not put between pipes ( | | ) before > declaration. I thought it was mandatory to have the pipes to declare > variables. what is the meaning of having them declare without pipes? >

March 29, 2021

Re: Connecting to a MongoDB Atlas Cluster

by Sanjay Minni

Stef, Just an addition to my previous mail on your query on protocol Per the MongoDB-atlas control panel the following connect protocol options are available. These come up when a database user is added thru Database Access option - SCRAM - X.509 Certificate - AWS IAM Hope this is the information you are looking for Sanjay Minni wrote > Thanks Stef, > > I really am not technically knowledgeable to answer that question > but all documentation is here > https://docs.atlas.mongodb.com/tutorial/connect-to-your-cluster/ > > however after the technicals, i sort of noted somewhere that A database > username and password is required in the connect string for a connect and > there could be a slight variation in AWS / Azure / GCP hosting (I am using > GCP but can change) > > Thanks for helping > > > StÃ©phane Ducasse wrote >> Hi >> >> what is the authentification protocol of this service? >> >> S >> >>> On 25 Mar 2021, at 15:12, Sanjay Minni < > >> sm@ > >> > wrote: >>> >>> Hi All, >>> >>> I really need some help here as I am unable to connect >>> Pharo to MongoDB Atlas Cluster service: http://cloud.mongodb.com. >>> (This service gives a free 500 MB MongoDB cluster on the cloud and >>> thereafter larger on subscription) >>> >>> I have got stuck in my application development. >>> >>> The connection is thru MongoDB (client) Drivers and the connection >>> string >>> typically is given as >>> 'mongodb+srv:// >> > <username> >> : >> > <password> >> @yyyy.xxxxx.mongodb.net/ >> > <mydefaultdatabase> >> ?retryWrites=true&w=majority" >>> >>> >>> Ques 1.: >>> >>> is MongoClient required ? >>> >>> though Atlas service is a cluster the manual for Atlas states >>> 'MongoDB drivers automatically attempt server selection following a >>> cluster election or failover event. By >>> default, the C driver immediately raises an error if its first attempt >>> to >>> select a server fails. ...' >>> >>> in any case MongoClient will probably fail in the following line at >>>>> initializeWith: >>> ... >>> initialUrlStrings := initialUrls collect: [:each | each asMongoUrl >>> asMongoUrlString ]. >>> >>> as >>> asMongoUrl will not work with the scheme 'mongodb+srv' >>> >>> >>> Ques 2: >>> >>> Can we directly connect thru class Mongo. However the specified connect >>> string above would not go thru >>> >>> >>> So can someone pls help on how to connect or work around this >>> >>> >>> >>> >>> >>> >>> Sanjay Minni wrote >>>> Hi >>>> >>>> can anyone pls help me with an example of connecting to a MongoDB Atlas >>>> cluster (their cloud service). >>>> >>>> My Atlas cluster replica set is at the urls >>>> yyyy-shard-00-00.xxxxx.mongodb.net:27017 >>>> yyyy-shard-00-01.xxxxx.mongodb.net:27017 >>>> yyyy-shard-00-02.xxxxx.mongodb.net:27017 >>>> >>>> The MongoDB Atlas website specifies the application connectstring as >>>> >>>> >>>> 'mongodb+srv:// >>>> >> > <username> >>>> : >>>> >> > <password> >>>> @yyyy.xxxxx.mongodb.net/ >>>> >> > <mydefaultdatabase> >>>> ?retryWrites=true&w=majority" >>>> >>>> I saw the doc / example on pharo-nosql/mongotalk but could not figure >>>> out >>>> in >>>> MongoClient - >>>> >>>> 1. how to get embed the username:password in the connectstring which i >>>> feel >>>> would be needed, >>>> 2. how to specify the default database >>>> 3. is it required to specify all three members while Mongo suggests a >>>> single >>>> part connect string which probably must be covering the cluster >>>> >>>> thanks >>>> >>>> >>>> >>>> >>>> ----- >>>> cheers, >>>> Sanjay >>>> -- >>>> Sent from: http://forum.world.st/Pharo-Smalltalk-Users-f1310670.html >>> >>> >>> >>> >>> >>> ----- >>> cheers, >>> Sanjay >>> -- >>> Sent from: http://forum.world.st/Pharo-Smalltalk-Users-f1310670.html >> >> -------------------------------------------- >> StÃ©phane Ducasse >> http://stephane.ducasse.free.fr / http://www.pharo.org >> 03 59 35 87 52 >> Assistant: Aurore Dalle >> FAX 03 59 57 78 50 >> TEL 03 59 35 86 16 >> S. Ducasse - Inria >> 40, avenue Halley, >> Parc Scientifique de la Haute Borne, BÃ¢t.A, Park Plaza >> Villeneuve d'Ascq 59650 >> France > > > > > > ----- > cheers, > Sanjay > -- > Sent from: http://forum.world.st/Pharo-Smalltalk-Users-f1310670.html ----- cheers, Sanjay -- Sent from: http://forum.world.st/Pharo-Smalltalk-Users-f1310670.html

March 29, 2021

Re: change process variable while process is running

by mspgate＠gmail.com

thanks! I am now sure I am using the highest priority. one last question about this, maybe very newbie nut I would like to understand things. so, in your code example for the Process using the ShareQueue and in my running demo, the ShareQueues are not put between pipes ( | | ) before declaration. I thought it was mandatory to have the pipes to declare variables. what is the meaning of having them declare without pipes?

March 27, 2021

Re: change process variable while process is running

by Richard O'Keefe

Open a Playground in Pharo. Enter the following text. (((ProcessorScheduler selectors) select: [:each | each endsWith: 'Priority']) collect: [:each | {Processor perform: each. each}]) sorted: [:x :y | x first <= y first] Select it, the ctrl-i or "Inspect It" from a menu). That gives you a list of the named priorities. >From that you will be able to answer your own question. On Fri, 26 Mar 2021 at 06:39, <mspgate(a)gmail.com> wrote: > this is what I was able to put together thanks to your advice Richard. > > https://www.youtube.com/watch?v=NFaR3ZQfOUU&feature=youtu.be > > I am further developing this research on Pharo as a tool for live coding. > I am sending many OSC messages and they sounds pretty on time if the > Process is forked at Processor timingPriority. > > is that the maximum priority? >

March 26, 2021

Re: Connecting to a MongoDB Atlas Cluster

by Sanjay Minni

I dont know how the Pharo Mongo Driver works but if connecting to Mongo Atlas would require a lot of exploring then could using the mongo C drivers thru uFFI or some other way be an alternative method to connect to Mongo Atlas https://docs.mongodb.com/drivers/c/ Regards Sanjay Minni wrote > Thanks Stef, > > I really am not technically knowledgeable to answer that question > but all documentation is here > https://docs.atlas.mongodb.com/tutorial/connect-to-your-cluster/ > > however after the technicals, i sort of noted somewhere that A database > username and password is required in the connect string for a connect and > there could be a slight variation in AWS / Azure / GCP hosting (I am using > GCP but can change) > > Thanks for helping > > > StÃ©phane Ducasse wrote >> Hi >> >> what is the authentification protocol of this service? >> >> S >> >>> On 25 Mar 2021, at 15:12, Sanjay Minni < > >> sm@ > >> > wrote: >>> >>> Hi All, >>> >>> I really need some help here as I am unable to connect >>> Pharo to MongoDB Atlas Cluster service: http://cloud.mongodb.com. >>> (This service gives a free 500 MB MongoDB cluster on the cloud and >>> thereafter larger on subscription) >>> >>> I have got stuck in my application development. >>> >>> The connection is thru MongoDB (client) Drivers and the connection >>> string >>> typically is given as >>> 'mongodb+srv:// >> > <username> >> : >> > <password> >> @yyyy.xxxxx.mongodb.net/ >> > <mydefaultdatabase> >> ?retryWrites=true&w=majority" >>> >>> >>> Ques 1.: >>> >>> is MongoClient required ? >>> >>> though Atlas service is a cluster the manual for Atlas states >>> 'MongoDB drivers automatically attempt server selection following a >>> cluster election or failover event. By >>> default, the C driver immediately raises an error if its first attempt >>> to >>> select a server fails. ...' >>> >>> in any case MongoClient will probably fail in the following line at >>>>> initializeWith: >>> ... >>> initialUrlStrings := initialUrls collect: [:each | each asMongoUrl >>> asMongoUrlString ]. >>> >>> as >>> asMongoUrl will not work with the scheme 'mongodb+srv' >>> >>> >>> Ques 2: >>> >>> Can we directly connect thru class Mongo. However the specified connect >>> string above would not go thru >>> >>> >>> So can someone pls help on how to connect or work around this >>> >>> >>> >>> >>> >>> >>> Sanjay Minni wrote >>>> Hi >>>> >>>> can anyone pls help me with an example of connecting to a MongoDB Atlas >>>> cluster (their cloud service). >>>> >>>> My Atlas cluster replica set is at the urls >>>> yyyy-shard-00-00.xxxxx.mongodb.net:27017 >>>> yyyy-shard-00-01.xxxxx.mongodb.net:27017 >>>> yyyy-shard-00-02.xxxxx.mongodb.net:27017 >>>> >>>> The MongoDB Atlas website specifies the application connectstring as >>>> >>>> >>>> 'mongodb+srv:// >>>> >> > <username> >>>> : >>>> >> > <password> >>>> @yyyy.xxxxx.mongodb.net/ >>>> >> > <mydefaultdatabase> >>>> ?retryWrites=true&w=majority" >>>> >>>> I saw the doc / example on pharo-nosql/mongotalk but could not figure >>>> out >>>> in >>>> MongoClient - >>>> >>>> 1. how to get embed the username:password in the connectstring which i >>>> feel >>>> would be needed, >>>> 2. how to specify the default database >>>> 3. is it required to specify all three members while Mongo suggests a >>>> single >>>> part connect string which probably must be covering the cluster >>>> >>>> thanks >>>> >>>> >>>> >>>> >>>> ----- >>>> cheers, >>>> Sanjay >>>> -- >>>> Sent from: http://forum.world.st/Pharo-Smalltalk-Users-f1310670.html >>> >>> >>> >>> >>> >>> ----- >>> cheers, >>> Sanjay >>> -- >>> Sent from: http://forum.world.st/Pharo-Smalltalk-Users-f1310670.html >> >> -------------------------------------------- >> StÃ©phane Ducasse >> http://stephane.ducasse.free.fr / http://www.pharo.org >> 03 59 35 87 52 >> Assistant: Aurore Dalle >> FAX 03 59 57 78 50 >> TEL 03 59 35 86 16 >> S. Ducasse - Inria >> 40, avenue Halley, >> Parc Scientifique de la Haute Borne, BÃ¢t.A, Park Plaza >> Villeneuve d'Ascq 59650 >> France > > > > > > ----- > cheers, > Sanjay > -- > Sent from: http://forum.world.st/Pharo-Smalltalk-Users-f1310670.html ----- cheers, Sanjay -- Sent from: http://forum.world.st/Pharo-Smalltalk-Users-f1310670.html

March 26, 2021

Re: change process variable while process is running

by mspgate＠gmail.com

this is what I was able to put together thanks to your advice Richard. https://www.youtube.com/watch?v=NFaR3ZQfOUU&feature=youtu.be I am further developing this research on Pharo as a tool for live coding. I am sending many OSC messages and they sounds pretty on time if the Process is forked at Processor timingPriority. is that the maximum priority?

March 25, 2021

Re: Connecting to a MongoDB Atlas Cluster

by David Pennington

March 25, 2021

Re: Connecting to a MongoDB Atlas Cluster

by Sanjay Minni

Thanks Stef, I really am not technically knowledgeable to answer that question but all documentation is here https://docs.atlas.mongodb.com/tutorial/connect-to-your-cluster/ however after the technicals, i sort of noted somewhere that A database username and password is required in the connect string for a connect and there could be a slight variation in AWS / Azure / GCP hosting (I am using GCP but can change) Thanks for helping StÃ©phane Ducasse wrote > Hi > > what is the authentification protocol of this service? > > S > >> On 25 Mar 2021, at 15:12, Sanjay Minni < > sm@ > > wrote: >> >> Hi All, >> >> I really need some help here as I am unable to connect >> Pharo to MongoDB Atlas Cluster service: http://cloud.mongodb.com. >> (This service gives a free 500 MB MongoDB cluster on the cloud and >> thereafter larger on subscription) >> >> I have got stuck in my application development. >> >> The connection is thru MongoDB (client) Drivers and the connection string >> typically is given as >> 'mongodb+srv:// > <username> > : > <password> > @yyyy.xxxxx.mongodb.net/ > <mydefaultdatabase> > ?retryWrites=true&w=majority" >> >> >> Ques 1.: >> >> is MongoClient required ? >> >> though Atlas service is a cluster the manual for Atlas states >> 'MongoDB drivers automatically attempt server selection following a >> cluster election or failover event. By >> default, the C driver immediately raises an error if its first attempt >> to >> select a server fails. ...' >> >> in any case MongoClient will probably fail in the following line at >>>> initializeWith: >> ... >> initialUrlStrings := initialUrls collect: [:each | each asMongoUrl >> asMongoUrlString ]. >> >> as >> asMongoUrl will not work with the scheme 'mongodb+srv' >> >> >> Ques 2: >> >> Can we directly connect thru class Mongo. However the specified connect >> string above would not go thru >> >> >> So can someone pls help on how to connect or work around this >> >> >> >> >> >> >> Sanjay Minni wrote >>> Hi >>> >>> can anyone pls help me with an example of connecting to a MongoDB Atlas >>> cluster (their cloud service). >>> >>> My Atlas cluster replica set is at the urls >>> yyyy-shard-00-00.xxxxx.mongodb.net:27017 >>> yyyy-shard-00-01.xxxxx.mongodb.net:27017 >>> yyyy-shard-00-02.xxxxx.mongodb.net:27017 >>> >>> The MongoDB Atlas website specifies the application connectstring as >>> >>> >>> 'mongodb+srv:// >>> > <username> >>> : >>> > <password> >>> @yyyy.xxxxx.mongodb.net/ >>> > <mydefaultdatabase> >>> ?retryWrites=true&w=majority" >>> >>> I saw the doc / example on pharo-nosql/mongotalk but could not figure >>> out >>> in >>> MongoClient - >>> >>> 1. how to get embed the username:password in the connectstring which i >>> feel >>> would be needed, >>> 2. how to specify the default database >>> 3. is it required to specify all three members while Mongo suggests a >>> single >>> part connect string which probably must be covering the cluster >>> >>> thanks >>> >>> >>> >>> >>> ----- >>> cheers, >>> Sanjay >>> -- >>> Sent from: http://forum.world.st/Pharo-Smalltalk-Users-f1310670.html >> >> >> >> >> >> ----- >> cheers, >> Sanjay >> -- >> Sent from: http://forum.world.st/Pharo-Smalltalk-Users-f1310670.html > > -------------------------------------------- > StÃ©phane Ducasse > http://stephane.ducasse.free.fr / http://www.pharo.org > 03 59 35 87 52 > Assistant: Aurore Dalle > FAX 03 59 57 78 50 > TEL 03 59 35 86 16 > S. Ducasse - Inria > 40, avenue Halley, > Parc Scientifique de la Haute Borne, BÃ¢t.A, Park Plaza > Villeneuve d'Ascq 59650 > France ----- cheers, Sanjay -- Sent from: http://forum.world.st/Pharo-Smalltalk-Users-f1310670.html

March 25, 2021

Re: Connecting to a MongoDB Atlas Cluster

by StÃ©phane Ducasse

Hi what is the authentification protocol of this service? S > On 25 Mar 2021, at 15:12, Sanjay Minni <sm(a)planage.com> wrote: > > Hi All, > > I really need some help here as I am unable to connect > Pharo to MongoDB Atlas Cluster service: http://cloud.mongodb.com. > (This service gives a free 500 MB MongoDB cluster on the cloud and > thereafter larger on subscription) > > I have got stuck in my application development. > > The connection is thru MongoDB (client) Drivers and the connection string > typically is given as > 'mongodb+srv://<username>:<password>@yyyy.xxxxx.mongodb.net/<mydefaultdatabase>?retryWrites=true&w=majority" > > > Ques 1.: > > is MongoClient required ? > > though Atlas service is a cluster the manual for Atlas states > 'MongoDB drivers automatically attempt server selection following a > cluster election or failover event. By > default, the C driver immediately raises an error if its first attempt to > select a server fails. ...' > > in any case MongoClient will probably fail in the following line at >>> initializeWith: > ... > initialUrlStrings := initialUrls collect: [:each | each asMongoUrl > asMongoUrlString ]. > > as > asMongoUrl will not work with the scheme 'mongodb+srv' > > > Ques 2: > > Can we directly connect thru class Mongo. However the specified connect > string above would not go thru > > > So can someone pls help on how to connect or work around this > > > > > > > Sanjay Minni wrote >> Hi >> >> can anyone pls help me with an example of connecting to a MongoDB Atlas >> cluster (their cloud service). >> >> My Atlas cluster replica set is at the urls >> yyyy-shard-00-00.xxxxx.mongodb.net:27017 >> yyyy-shard-00-01.xxxxx.mongodb.net:27017 >> yyyy-shard-00-02.xxxxx.mongodb.net:27017 >> >> The MongoDB Atlas website specifies the application connectstring as >> >> >> 'mongodb+srv:// >> <username> >> : >> <password> >> @yyyy.xxxxx.mongodb.net/ >> <mydefaultdatabase> >> ?retryWrites=true&w=majority" >> >> I saw the doc / example on pharo-nosql/mongotalk but could not figure out >> in >> MongoClient - >> >> 1. how to get embed the username:password in the connectstring which i >> feel >> would be needed, >> 2. how to specify the default database >> 3. is it required to specify all three members while Mongo suggests a >> single >> part connect string which probably must be covering the cluster >> >> thanks >> >> >> >> >> ----- >> cheers, >> Sanjay >> -- >> Sent from: http://forum.world.st/Pharo-Smalltalk-Users-f1310670.html > > > > > > ----- > cheers, > Sanjay > -- > Sent from: http://forum.world.st/Pharo-Smalltalk-Users-f1310670.html -------------------------------------------- StÃ©phane Ducasse http://stephane.ducasse.free.fr / http://www.pharo.org 03 59 35 87 52 Assistant: Aurore Dalle FAX 03 59 57 78 50 TEL 03 59 35 86 16 S. Ducasse - Inria 40, avenue Halley, Parc Scientifique de la Haute Borne, BÃ¢t.A, Park Plaza Villeneuve d'Ascq 59650 France

March 25, 2021

Re: Connecting to a MongoDB Atlas Cluster

by Sanjay Minni

Hi All, I really need some help here as I am unable to connect Pharo to MongoDB Atlas Cluster service: http://cloud.mongodb.com. (This service gives a free 500 MB MongoDB cluster on the cloud and thereafter larger on subscription) I have got stuck in my application development. The connection is thru MongoDB (client) Drivers and the connection string typically is given as 'mongodb+srv://<username>:<password>@yyyy.xxxxx.mongodb.net/<mydefaultdatabase>?retryWrites=true&w=majority" Ques 1.: is MongoClient required ? though Atlas service is a cluster the manual for Atlas states 'MongoDB drivers automatically attempt server selection following a cluster election or failover event. By default, the C driver immediately raises an error if its first attempt to select a server fails. ...' in any case MongoClient will probably fail in the following line at >>initializeWith: ... initialUrlStrings := initialUrls collect: [:each | each asMongoUrl asMongoUrlString ]. as asMongoUrl will not work with the scheme 'mongodb+srv' Ques 2: Can we directly connect thru class Mongo. However the specified connect string above would not go thru So can someone pls help on how to connect or work around this Sanjay Minni wrote > Hi > > can anyone pls help me with an example of connecting to a MongoDB Atlas > cluster (their cloud service). > > My Atlas cluster replica set is at the urls > yyyy-shard-00-00.xxxxx.mongodb.net:27017 > yyyy-shard-00-01.xxxxx.mongodb.net:27017 > yyyy-shard-00-02.xxxxx.mongodb.net:27017 > > The MongoDB Atlas website specifies the application connectstring as > > > 'mongodb+srv:// > <username> > : > <password> > @yyyy.xxxxx.mongodb.net/ > <mydefaultdatabase> > ?retryWrites=true&w=majority" > > I saw the doc / example on pharo-nosql/mongotalk but could not figure out > in > MongoClient - > > 1. how to get embed the username:password in the connectstring which i > feel > would be needed, > 2. how to specify the default database > 3. is it required to specify all three members while Mongo suggests a > single > part connect string which probably must be covering the cluster > > thanks > > > > > ----- > cheers, > Sanjay > -- > Sent from: http://forum.world.st/Pharo-Smalltalk-Users-f1310670.html ----- cheers, Sanjay -- Sent from: http://forum.world.st/Pharo-Smalltalk-Users-f1310670.html

March 25, 2021