Re: Services semaphore attribute
I'm pretty sure I documented this as part of the service engine guide in confluence. I don't have a link handy. Regards Scott On 17/06/2010, at 7:30 PM, Jacques Le Roux wrote: Hi Chirag, I think you are looking to use the wait value of the semaphore attribute. Beware of the timeout though... You may combine with the other semaphore attributes if needed xs:attribute name=semaphore-wait-seconds type=xs:int default=300/ xs:attribute name=semaphore-sleep type=xs:int default=500/ HTH Jacques Please use rather the user MLfor such questions, thanks... - Original Message - From: Chirag Manocha To: jacques.le.r...@les7arts.com Sent: Thursday, June 17, 2010 9:11 AM Subject: Services semaphore attribute Hi Jacques, Can you please tell me about semaphore attribute of service tag. The scenario is when I am getting multiple request(request is calling a service) then I want the service to be called in sequence rather than parallel, If you can provide some links to documentation that will be help, Thanks and Regards -- Chirag Manocha +91-98735-47457 smime.p7s Description: S/MIME cryptographic signature
Re: Services semaphore attribute
Right, https://cwiki.apache.org/confluence/display/OFBTECH/Service+Engine+Guide Simply type semaphore in the search box Jacopo implemented in the OFBiz main page Jacques Scott Gray wrote: I'm pretty sure I documented this as part of the service engine guide in confluence. I don't have a link handy. Regards Scott On 17/06/2010, at 7:30 PM, Jacques Le Roux wrote: Hi Chirag, I think you are looking to use the wait value of the semaphore attribute. Beware of the timeout though... You may combine with the other semaphore attributes if needed xs:attribute name=semaphore-wait-seconds type=xs:int default=300/ xs:attribute name=semaphore-sleep type=xs:int default=500/ HTH Jacques Please use rather the user MLfor such questions, thanks... - Original Message - From: Chirag Manocha To: jacques.le.r...@les7arts.com Sent: Thursday, June 17, 2010 9:11 AM Subject: Services semaphore attribute Hi Jacques, Can you please tell me about semaphore attribute of service tag. The scenario is when I am getting multiple request(request is calling a service) then I want the service to be called in sequence rather than parallel, If you can provide some links to documentation that will be help, Thanks and Regards -- Chirag Manocha +91-98735-47457
Re: Services semaphore attribute
Thanks Jacques, Scott. I saw the entity ServiceSemaphore. Why the primary key of this entity is serviceName ? Like In my case when 10 requests come simultaneously, there is a service event in request. Now service needs to be called sequentially. Now when I use the semaphore attribute i.e. semaphore=wait, It gives exception:- Message: SQL Exception while executing the following:INSERT INTO public.SERVICE_SEMAPHORE (SERVICE_NAME, LOCK_THREAD, LOCK_TIME, LAST_UPDATED_STAMP, LAST_UPDATE D_TX_STAMP, CREATED_STAMP, CREATED_TX_STAMP) VALUES (?, ?, ?, ?, ?, ?, ?) (ERROR: duplicate key value violates unique constraint pk_service_semaphore) Regards -- Chirag Manocha Emforium Pvt. Ltd. Contact :- +91-98735-47457, +91-98263-19099 Please don't print this Email unless you really need to - this will preserve trees on planet earth. - Original Message - From: Jacques Le Roux jacques.le.r...@les7arts.com To: user@ofbiz.apache.org Sent: Thursday, June 17, 2010 1:25:34 PM Subject: Re: Services semaphore attribute Right, https://cwiki.apache.org/confluence/display/OFBTECH/Service+Engine+Guide Simply type semaphore in the search box Jacopo implemented in the OFBiz main page Jacques Scott Gray wrote: I'm pretty sure I documented this as part of the service engine guide in confluence. I don't have a link handy. Regards Scott On 17/06/2010, at 7:30 PM, Jacques Le Roux wrote: Hi Chirag, I think you are looking to use the wait value of the semaphore attribute. Beware of the timeout though... You may combine with the other semaphore attributes if needed xs:attribute name=semaphore-wait-seconds type=xs:int default=300/ xs:attribute name=semaphore-sleep type=xs:int default=500/ HTH Jacques Please use rather the user MLfor such questions, thanks... - Original Message - From: Chirag Manocha To: jacques.le.r...@les7arts.com Sent: Thursday, June 17, 2010 9:11 AM Subject: Services semaphore attribute Hi Jacques, Can you please tell me about semaphore attribute of service tag. The scenario is when I am getting multiple request(request is calling a service) then I want the service to be called in sequence rather than parallel, If you can provide some links to documentation that will be help, Thanks and Regards -- Chirag Manocha +91-98735-47457
Re: Services semaphore attribute
There could be a bug in the code, the entity definition is correct because an entry gets put in that table when a semaphore service is begun and then removed when it completes. The presence of a record in the entity is the indicator that the semaphore service is being run so any subsequent calls need to wait. Obviously it shouldn't be trying to add another row for the same service, it should instead be waiting until the row is removed so that it can write a fresh row and begin the next service call in queue. Regards Scott HotWax Media http://www.hotwaxmedia.com On 17/06/2010, at 9:23 PM, Chirag Manocha wrote: Thanks Jacques, Scott. I saw the entity ServiceSemaphore. Why the primary key of this entity is serviceName ? Like In my case when 10 requests come simultaneously, there is a service event in request. Now service needs to be called sequentially. Now when I use the semaphore attribute i.e. semaphore=wait, It gives exception:- Message: SQL Exception while executing the following:INSERT INTO public.SERVICE_SEMAPHORE (SERVICE_NAME, LOCK_THREAD, LOCK_TIME, LAST_UPDATED_STAMP, LAST_UPDATE D_TX_STAMP, CREATED_STAMP, CREATED_TX_STAMP) VALUES (?, ?, ?, ?, ?, ?, ?) (ERROR: duplicate key value violates unique constraint pk_service_semaphore) Regards -- Chirag Manocha Emforium Pvt. Ltd. Contact :- +91-98735-47457, +91-98263-19099 Please don't print this Email unless you really need to - this will preserve trees on planet earth. - Original Message - From: Jacques Le Roux jacques.le.r...@les7arts.com To: user@ofbiz.apache.org Sent: Thursday, June 17, 2010 1:25:34 PM Subject: Re: Services semaphore attribute Right, https://cwiki.apache.org/confluence/display/OFBTECH/Service+Engine+Guide Simply type semaphore in the search box Jacopo implemented in the OFBiz main page Jacques Scott Gray wrote: I'm pretty sure I documented this as part of the service engine guide in confluence. I don't have a link handy. Regards Scott On 17/06/2010, at 7:30 PM, Jacques Le Roux wrote: Hi Chirag, I think you are looking to use the wait value of the semaphore attribute. Beware of the timeout though... You may combine with the other semaphore attributes if needed xs:attribute name=semaphore-wait-seconds type=xs:int default=300/ xs:attribute name=semaphore-sleep type=xs:int default=500/ HTH Jacques Please use rather the user MLfor such questions, thanks... - Original Message - From: Chirag Manocha To: jacques.le.r...@les7arts.com Sent: Thursday, June 17, 2010 9:11 AM Subject: Services semaphore attribute Hi Jacques, Can you please tell me about semaphore attribute of service tag. The scenario is when I am getting multiple request(request is calling a service) then I want the service to be called in sequence rather than parallel, If you can provide some links to documentation that will be help, Thanks and Regards -- Chirag Manocha +91-98735-47457 smime.p7s Description: S/MIME cryptographic signature
Re: Services semaphore attribute
Which code ? Framework ? While searching on topic I found this http://ofbiz.markmail.org/search/?q=Semaphore#query:Semaphore%20list%3Aorg.apache.ofbiz.user+page:3+mid:ai2oszstroga6fpx+state:results Jacques, How did u resolve that ? :-) Regards -- Chirag Manocha Emforium Pvt. Ltd. Contact :- +91-98735-47457, +91-98263-19099 Please don't print this Email unless you really need to - this will preserve trees on planet earth. - Original Message - From: Scott Gray scott.g...@hotwaxmedia.com To: user@ofbiz.apache.org Sent: Thursday, June 17, 2010 3:11:44 PM Subject: Re: Services semaphore attribute There could be a bug in the code, the entity definition is correct because an entry gets put in that table when a semaphore service is begun and then removed when it completes. The presence of a record in the entity is the indicator that the semaphore service is being run so any subsequent calls need to wait. Obviously it shouldn't be trying to add another row for the same service, it should instead be waiting until the row is removed so that it can write a fresh row and begin the next service call in queue. Regards Scott HotWax Media http://www.hotwaxmedia.com On 17/06/2010, at 9:23 PM, Chirag Manocha wrote: Thanks Jacques, Scott. I saw the entity ServiceSemaphore. Why the primary key of this entity is serviceName ? Like In my case when 10 requests come simultaneously, there is a service event in request. Now service needs to be called sequentially. Now when I use the semaphore attribute i.e. semaphore=wait, It gives exception:- Message: SQL Exception while executing the following:INSERT INTO public.SERVICE_SEMAPHORE (SERVICE_NAME, LOCK_THREAD, LOCK_TIME, LAST_UPDATED_STAMP, LAST_UPDATE D_TX_STAMP, CREATED_STAMP, CREATED_TX_STAMP) VALUES (?, ?, ?, ?, ?, ?, ?) (ERROR: duplicate key value violates unique constraint pk_service_semaphore) Regards -- Chirag Manocha Emforium Pvt. Ltd. Contact :- +91-98735-47457, +91-98263-19099 Please don't print this Email unless you really need to - this will preserve trees on planet earth. - Original Message - From: Jacques Le Roux jacques.le.r...@les7arts.com To: user@ofbiz.apache.org Sent: Thursday, June 17, 2010 1:25:34 PM Subject: Re: Services semaphore attribute Right, https://cwiki.apache.org/confluence/display/OFBTECH/Service+Engine+Guide Simply type semaphore in the search box Jacopo implemented in the OFBiz main page Jacques Scott Gray wrote: I'm pretty sure I documented this as part of the service engine guide in confluence. I don't have a link handy. Regards Scott On 17/06/2010, at 7:30 PM, Jacques Le Roux wrote: Hi Chirag, I think you are looking to use the wait value of the semaphore attribute. Beware of the timeout though... You may combine with the other semaphore attributes if needed xs:attribute name=semaphore-wait-seconds type=xs:int default=300/ xs:attribute name=semaphore-sleep type=xs:int default=500/ HTH Jacques Please use rather the user MLfor such questions, thanks... - Original Message - From: Chirag Manocha To: jacques.le.r...@les7arts.com Sent: Thursday, June 17, 2010 9:11 AM Subject: Services semaphore attribute Hi Jacques, Can you please tell me about semaphore attribute of service tag. The scenario is when I am getting multiple request(request is calling a service) then I want the service to be called in sequence rather than parallel, If you can provide some links to documentation that will be help, Thanks and Regards -- Chirag Manocha +91-98735-47457
Re: Services semaphore attribute
Ha, that's why you asked me directly. I can't remember clearly but I guess I did not resolve it, else I'd have put a word about it. Also IIRW I did not cross that again Jacques From: Chirag Manocha cmano...@emforium.com Which code ? Framework ? While searching on topic I found this http://ofbiz.markmail.org/search/?q=Semaphore#query:Semaphore%20list%3Aorg.apache.ofbiz.user+page:3+mid:ai2oszstroga6fpx+state:results Jacques, How did u resolve that ? :-) Regards -- Chirag Manocha Emforium Pvt. Ltd. Contact :- +91-98735-47457, +91-98263-19099 Please don't print this Email unless you really need to - this will preserve trees on planet earth. - Original Message - From: Scott Gray scott.g...@hotwaxmedia.com To: user@ofbiz.apache.org Sent: Thursday, June 17, 2010 3:11:44 PM Subject: Re: Services semaphore attribute There could be a bug in the code, the entity definition is correct because an entry gets put in that table when a semaphore service is begun and then removed when it completes. The presence of a record in the entity is the indicator that the semaphore service is being run so any subsequent calls need to wait. Obviously it shouldn't be trying to add another row for the same service, it should instead be waiting until the row is removed so that it can write a fresh row and begin the next service call in queue. Regards Scott HotWax Media http://www.hotwaxmedia.com On 17/06/2010, at 9:23 PM, Chirag Manocha wrote: Thanks Jacques, Scott. I saw the entity ServiceSemaphore. Why the primary key of this entity is serviceName ? Like In my case when 10 requests come simultaneously, there is a service event in request. Now service needs to be called sequentially. Now when I use the semaphore attribute i.e. semaphore=wait, It gives exception:- Message: SQL Exception while executing the following:INSERT INTO public.SERVICE_SEMAPHORE (SERVICE_NAME, LOCK_THREAD, LOCK_TIME, LAST_UPDATED_STAMP, LAST_UPDATE D_TX_STAMP, CREATED_STAMP, CREATED_TX_STAMP) VALUES (?, ?, ?, ?, ?, ?, ?) (ERROR: duplicate key value violates unique constraint pk_service_semaphore) Regards -- Chirag Manocha Emforium Pvt. Ltd. Contact :- +91-98735-47457, +91-98263-19099 Please don't print this Email unless you really need to - this will preserve trees on planet earth. - Original Message - From: Jacques Le Roux jacques.le.r...@les7arts.com To: user@ofbiz.apache.org Sent: Thursday, June 17, 2010 1:25:34 PM Subject: Re: Services semaphore attribute Right, https://cwiki.apache.org/confluence/display/OFBTECH/Service+Engine+Guide Simply type semaphore in the search box Jacopo implemented in the OFBiz main page Jacques Scott Gray wrote: I'm pretty sure I documented this as part of the service engine guide in confluence. I don't have a link handy. Regards Scott On 17/06/2010, at 7:30 PM, Jacques Le Roux wrote: Hi Chirag, I think you are looking to use the wait value of the semaphore attribute. Beware of the timeout though... You may combine with the other semaphore attributes if needed xs:attribute name=semaphore-wait-seconds type=xs:int default=300/ xs:attribute name=semaphore-sleep type=xs:int default=500/ HTH Jacques Please use rather the user MLfor such questions, thanks... - Original Message - From: Chirag Manocha To: jacques.le.r...@les7arts.com Sent: Thursday, June 17, 2010 9:11 AM Subject: Services semaphore attribute Hi Jacques, Can you please tell me about semaphore attribute of service tag. The scenario is when I am getting multiple request(request is calling a service) then I want the service to be called in sequence rather than parallel, If you can provide some links to documentation that will be help, Thanks and Regards -- Chirag Manocha +91-98735-47457
Re: Services semaphore attribute
Yes framework, or more specifically the code in the service engine that handles the semaphore services. Regards Scott On 17/06/2010, at 10:02 PM, Chirag Manocha wrote: Which code ? Framework ? While searching on topic I found this http://ofbiz.markmail.org/search/?q=Semaphore#query:Semaphore%20list%3Aorg.apache.ofbiz.user+page:3+mid:ai2oszstroga6fpx+state:results Jacques, How did u resolve that ? :-) Regards -- Chirag Manocha Emforium Pvt. Ltd. Contact :- +91-98735-47457, +91-98263-19099 Please don't print this Email unless you really need to - this will preserve trees on planet earth. - Original Message - From: Scott Gray scott.g...@hotwaxmedia.com To: user@ofbiz.apache.org Sent: Thursday, June 17, 2010 3:11:44 PM Subject: Re: Services semaphore attribute There could be a bug in the code, the entity definition is correct because an entry gets put in that table when a semaphore service is begun and then removed when it completes. The presence of a record in the entity is the indicator that the semaphore service is being run so any subsequent calls need to wait. Obviously it shouldn't be trying to add another row for the same service, it should instead be waiting until the row is removed so that it can write a fresh row and begin the next service call in queue. Regards Scott HotWax Media http://www.hotwaxmedia.com On 17/06/2010, at 9:23 PM, Chirag Manocha wrote: Thanks Jacques, Scott. I saw the entity ServiceSemaphore. Why the primary key of this entity is serviceName ? Like In my case when 10 requests come simultaneously, there is a service event in request. Now service needs to be called sequentially. Now when I use the semaphore attribute i.e. semaphore=wait, It gives exception:- Message: SQL Exception while executing the following:INSERT INTO public.SERVICE_SEMAPHORE (SERVICE_NAME, LOCK_THREAD, LOCK_TIME, LAST_UPDATED_STAMP, LAST_UPDATE D_TX_STAMP, CREATED_STAMP, CREATED_TX_STAMP) VALUES (?, ?, ?, ?, ?, ?, ?) (ERROR: duplicate key value violates unique constraint pk_service_semaphore) Regards -- Chirag Manocha Emforium Pvt. Ltd. Contact :- +91-98735-47457, +91-98263-19099 Please don't print this Email unless you really need to - this will preserve trees on planet earth. - Original Message - From: Jacques Le Roux jacques.le.r...@les7arts.com To: user@ofbiz.apache.org Sent: Thursday, June 17, 2010 1:25:34 PM Subject: Re: Services semaphore attribute Right, https://cwiki.apache.org/confluence/display/OFBTECH/Service+Engine+Guide Simply type semaphore in the search box Jacopo implemented in the OFBiz main page Jacques Scott Gray wrote: I'm pretty sure I documented this as part of the service engine guide in confluence. I don't have a link handy. Regards Scott On 17/06/2010, at 7:30 PM, Jacques Le Roux wrote: Hi Chirag, I think you are looking to use the wait value of the semaphore attribute. Beware of the timeout though... You may combine with the other semaphore attributes if needed xs:attribute name=semaphore-wait-seconds type=xs:int default=300/ xs:attribute name=semaphore-sleep type=xs:int default=500/ HTH Jacques Please use rather the user MLfor such questions, thanks... - Original Message - From: Chirag Manocha To: jacques.le.r...@les7arts.com Sent: Thursday, June 17, 2010 9:11 AM Subject: Services semaphore attribute Hi Jacques, Can you please tell me about semaphore attribute of service tag. The scenario is when I am getting multiple request(request is calling a service) then I want the service to be called in sequence rather than parallel, If you can provide some links to documentation that will be help, Thanks and Regards -- Chirag Manocha +91-98735-47457 smime.p7s Description: S/MIME cryptographic signature
