Re: Scheduled jobs weird behavior

[Michael Brohl]

Hi Giulio,

It seems you directly store the generated file to the ftp server, correct?

In such cases, we store the file to be transferred locally in an archive 
directory and then transfer it to the ftp server.


You'll see if the file was written and you have a backup in case there 
was something wrong with the ftp transfer.


Best regards,

Michael


Am 30.03.18 um 16:16 schrieb Giulio Speri - MpStyle Srl:

Hi Rishi,

thanks for the reply!

The api used for the ftp transfer are the apache FTP api, group
"commons-net" (version 3.5);
The code used to connect and store file via fftp is the following:

ftp = new FTPClient()
ftp.connect "xxx.yy.ww"
ftp.enterLocalPassiveMode()
ftp.login "username", "password"
ftp.changeWorkingDirectory "INPUT_DIRECTORY"
//put
InputStream file_put= new FileInputStream(directoryZip);
ftp.setFileType(FTP.BINARY_FILE_TYPE);
ftp.storeFile(zipName, file_put);
file_put.close()
ftp.logout()
ftp.disconnect()

Shouldn't Groovy automatically raise exception in case of errors?




2018-03-30 15:07 GMT+02:00 Rishi Solanki :


Giulio,

In addition to what Nicolas suggested please share or look into the
specific code which logs the files and export the orders at ftp locaion.
Probable cause for such error writer create the file at particular location
but could not push the data/file due to some reason but send no
exception/failure.

My guess problem should be related to pushing the exported data and logs to
ftp location and is giving success but not pushing. Kind of case when we
tell the writer object to write and close. Sometime writer.flush() is also
required.

Also if possible at your end then share the relevant code and api you are
using, to better understand the problem.

HTH!


Rishi Solanki
Sr Manager, Enterprise Software Development
HotWax Systems Pvt. Ltd.
Direct: +91-9893287847
http://www.hotwaxsystems.com
www.hotwax.co

On Fri, Mar 30, 2018 at 5:48 PM, Nicolas Malin 
wrote:


Hello Giulio,

On 30/03/2018 14:05, Giulio Speri - MpStyle Srl wrote:


Hi all,
[...] Now, here is the issue; sometimes (runtime in which happen seems
random), I
notice that:
- the service in the Job List screen, has the state of "Finished" (no
errors);
- No log file nor zip file is written;
- the flag on the OrderHeader entity has been set to "Y" (by default is
null this field);
- no error or exception found in ofbiz/error log files;

The Job Poller on the second instance of ofbiz is disabled
("poll-enable=false" in serviceengine.xml), so that all the scheduled

jobs

are run only on the first instance.

I am quite confused by this situation and I really don't know what and
where to look, to understand what happens.

Does anyone ever experienced a similar issue?


I worked several time with service engine and I interpreted your feedback
as follow :
* the service in the Job List screen, has the state of "Finished" -> Ok
for OFBiz the service return a success
* the flag on the OrderHeader entity has been set to "Y" (by default is
null this field); -> If your service run under transaction, no reason

that

your service correctly
* No log file nor zip file is written
   ** I see different case, if you are sure that your code works properly
check if you didn't manage some silent exception ( as
try{...}catch(Exception){ }) and is it's the case review you exception
management.
   ** Increase your code with more log with good log4j configuration for
track your service.
   ** Check if you haven't external element that can be delete your file

by

inadvertence
   ** a doubt, send an email with the generate file to your developer team
in // to the storage.
   ** no solution -> Use the remote debugger

I hope you can find a solution to your problem
Nicolas

Thanks in advance for your help.

Giulio










smime.p7s
Description: S/MIME Cryptographic Signature

Re: Scheduled jobs weird behavior

[Giulio Speri - MpStyle Srl]

Hi Rishi,

thanks for the reply!

The api used for the ftp transfer are the apache FTP api, group
"commons-net" (version 3.5);
The code used to connect and store file via fftp is the following:

ftp = new FTPClient()
ftp.connect "xxx.yy.ww"
ftp.enterLocalPassiveMode()
ftp.login "username", "password"
ftp.changeWorkingDirectory "INPUT_DIRECTORY"
//put
InputStream file_put= new FileInputStream(directoryZip);
ftp.setFileType(FTP.BINARY_FILE_TYPE);
ftp.storeFile(zipName, file_put);
file_put.close()
ftp.logout()
ftp.disconnect()

Shouldn't Groovy automatically raise exception in case of errors?




2018-03-30 15:07 GMT+02:00 Rishi Solanki :

> Giulio,
>
> In addition to what Nicolas suggested please share or look into the
> specific code which logs the files and export the orders at ftp locaion.
> Probable cause for such error writer create the file at particular location
> but could not push the data/file due to some reason but send no
> exception/failure.
>
> My guess problem should be related to pushing the exported data and logs to
> ftp location and is giving success but not pushing. Kind of case when we
> tell the writer object to write and close. Sometime writer.flush() is also
> required.
>
> Also if possible at your end then share the relevant code and api you are
> using, to better understand the problem.
>
> HTH!
>
>
> Rishi Solanki
> Sr Manager, Enterprise Software Development
> HotWax Systems Pvt. Ltd.
> Direct: +91-9893287847
> http://www.hotwaxsystems.com
> www.hotwax.co
>
> On Fri, Mar 30, 2018 at 5:48 PM, Nicolas Malin 
> wrote:
>
> > Hello Giulio,
> >
> > On 30/03/2018 14:05, Giulio Speri - MpStyle Srl wrote:
> >
> >> Hi all,
> >> [...] Now, here is the issue; sometimes (runtime in which happen seems
> >> random), I
> >> notice that:
> >> - the service in the Job List screen, has the state of "Finished" (no
> >> errors);
> >> - No log file nor zip file is written;
> >> - the flag on the OrderHeader entity has been set to "Y" (by default is
> >> null this field);
> >> - no error or exception found in ofbiz/error log files;
> >>
> >> The Job Poller on the second instance of ofbiz is disabled
> >> ("poll-enable=false" in serviceengine.xml), so that all the scheduled
> jobs
> >> are run only on the first instance.
> >>
> >> I am quite confused by this situation and I really don't know what and
> >> where to look, to understand what happens.
> >>
> >> Does anyone ever experienced a similar issue?
> >>
> > I worked several time with service engine and I interpreted your feedback
> > as follow :
> > * the service in the Job List screen, has the state of "Finished" -> Ok
> > for OFBiz the service return a success
> > * the flag on the OrderHeader entity has been set to "Y" (by default is
> > null this field); -> If your service run under transaction, no reason
> that
> > your service correctly
> > * No log file nor zip file is written
> >   ** I see different case, if you are sure that your code works properly
> > check if you didn't manage some silent exception ( as
> > try{...}catch(Exception){ }) and is it's the case review you exception
> > management.
> >   ** Increase your code with more log with good log4j configuration for
> > track your service.
> >   ** Check if you haven't external element that can be delete your file
> by
> > inadvertence
> >   ** a doubt, send an email with the generate file to your developer team
> > in // to the storage.
> >   ** no solution -> Use the remote debugger
> >
> > I hope you can find a solution to your problem
> > Nicolas
> >
> > Thanks in advance for your help.
> >>
> >> Giulio
> >>
> >>
> >
>



-- 
Giulio Speri


*Mp Styl**e Srl*
via Antonio Meucci, 37
41019 Limidi di Soliera (MO)
T 059/684916
M 334/3779851

www.mpstyle.it

Re: Chargebacks

[Paul Mandeltort]

It would just be a new payment issued from you to the customer.  This is better 
anyway as you’d want it to be in a separate account for returned payments/bad 
debts for your accountant to track.  

--P

> On Mar 30, 2018, at 7:40 AM,   
> wrote:
> 
> How does the system handle a charge back of a customer payment that has
> been confirmed?  Sometimes chargebacks don't happen until months after
> an invoice has been paid.  I noticed you no longer have the ability to
> void the payment after it has been confirmed.
> 
> Thanks,
> 
> James

Re: Scheduled jobs weird behavior

[Rishi Solanki]

Giulio,

In addition to what Nicolas suggested please share or look into the
specific code which logs the files and export the orders at ftp locaion.
Probable cause for such error writer create the file at particular location
but could not push the data/file due to some reason but send no
exception/failure.

My guess problem should be related to pushing the exported data and logs to
ftp location and is giving success but not pushing. Kind of case when we
tell the writer object to write and close. Sometime writer.flush() is also
required.

Also if possible at your end then share the relevant code and api you are
using, to better understand the problem.

HTH!


Rishi Solanki
Sr Manager, Enterprise Software Development
HotWax Systems Pvt. Ltd.
Direct: +91-9893287847
http://www.hotwaxsystems.com
www.hotwax.co

On Fri, Mar 30, 2018 at 5:48 PM, Nicolas Malin 
wrote:

> Hello Giulio,
>
> On 30/03/2018 14:05, Giulio Speri - MpStyle Srl wrote:
>
>> Hi all,
>> [...] Now, here is the issue; sometimes (runtime in which happen seems
>> random), I
>> notice that:
>> - the service in the Job List screen, has the state of "Finished" (no
>> errors);
>> - No log file nor zip file is written;
>> - the flag on the OrderHeader entity has been set to "Y" (by default is
>> null this field);
>> - no error or exception found in ofbiz/error log files;
>>
>> The Job Poller on the second instance of ofbiz is disabled
>> ("poll-enable=false" in serviceengine.xml), so that all the scheduled jobs
>> are run only on the first instance.
>>
>> I am quite confused by this situation and I really don't know what and
>> where to look, to understand what happens.
>>
>> Does anyone ever experienced a similar issue?
>>
> I worked several time with service engine and I interpreted your feedback
> as follow :
> * the service in the Job List screen, has the state of "Finished" -> Ok
> for OFBiz the service return a success
> * the flag on the OrderHeader entity has been set to "Y" (by default is
> null this field); -> If your service run under transaction, no reason that
> your service correctly
> * No log file nor zip file is written
>   ** I see different case, if you are sure that your code works properly
> check if you didn't manage some silent exception ( as
> try{...}catch(Exception){ }) and is it's the case review you exception
> management.
>   ** Increase your code with more log with good log4j configuration for
> track your service.
>   ** Check if you haven't external element that can be delete your file by
> inadvertence
>   ** a doubt, send an email with the generate file to your developer team
> in // to the storage.
>   ** no solution -> Use the remote debugger
>
> I hope you can find a solution to your problem
> Nicolas
>
> Thanks in advance for your help.
>>
>> Giulio
>>
>>
>

Re: Scheduled jobs weird behavior

[Giulio Speri - MpStyle Srl]

Hi Nicolas,

thanks for your quick answer.

The service is written in Groovy: this could lead to problems with
exceptions raising?
Do you suggest a Java solution to better manage exceptions?
Since I am one of the developer of the service I can directly work on the
code :) .



2018-03-30 14:18 GMT+02:00 Nicolas Malin :

> Hello Giulio,
>
> On 30/03/2018 14:05, Giulio Speri - MpStyle Srl wrote:
>
>> Hi all,
>> [...] Now, here is the issue; sometimes (runtime in which happen seems
>> random), I
>> notice that:
>> - the service in the Job List screen, has the state of "Finished" (no
>> errors);
>> - No log file nor zip file is written;
>> - the flag on the OrderHeader entity has been set to "Y" (by default is
>> null this field);
>> - no error or exception found in ofbiz/error log files;
>>
>> The Job Poller on the second instance of ofbiz is disabled
>> ("poll-enable=false" in serviceengine.xml), so that all the scheduled jobs
>> are run only on the first instance.
>>
>> I am quite confused by this situation and I really don't know what and
>> where to look, to understand what happens.
>>
>> Does anyone ever experienced a similar issue?
>>
> I worked several time with service engine and I interpreted your feedback
> as follow :
> * the service in the Job List screen, has the state of "Finished" -> Ok
> for OFBiz the service return a success
> * the flag on the OrderHeader entity has been set to "Y" (by default is
> null this field); -> If your service run under transaction, no reason that
> your service correctly
> * No log file nor zip file is written
>   ** I see different case, if you are sure that your code works properly
> check if you didn't manage some silent exception ( as
> try{...}catch(Exception){ }) and is it's the case review you exception
> management.
>   ** Increase your code with more log with good log4j configuration for
> track your service.
>   ** Check if you haven't external element that can be delete your file by
> inadvertence
>   ** a doubt, send an email with the generate file to your developer team
> in // to the storage.
>   ** no solution -> Use the remote debugger
>
> I hope you can find a solution to your problem
> Nicolas
>
> Thanks in advance for your help.
>>
>> Giulio
>>
>>
>


-- 
Giulio Speri


*Mp Styl**e Srl*
via Antonio Meucci, 37
41019 Limidi di Soliera (MO)
T 059/684916
M 334/3779851

www.mpstyle.it

Re: Scheduled jobs weird behavior

[Nicolas Malin]

Hello Giulio,

On 30/03/2018 14:05, Giulio Speri - MpStyle Srl wrote:

Hi all,
[...] Now, here is the issue; sometimes (runtime in which happen seems random), 
I
notice that:
- the service in the Job List screen, has the state of "Finished" (no
errors);
- No log file nor zip file is written;
- the flag on the OrderHeader entity has been set to "Y" (by default is
null this field);
- no error or exception found in ofbiz/error log files;

The Job Poller on the second instance of ofbiz is disabled
("poll-enable=false" in serviceengine.xml), so that all the scheduled jobs
are run only on the first instance.

I am quite confused by this situation and I really don't know what and
where to look, to understand what happens.

Does anyone ever experienced a similar issue?
I worked several time with service engine and I interpreted your 
feedback as follow :
* the service in the Job List screen, has the state of "Finished" -> Ok 
for OFBiz the service return a success
* the flag on the OrderHeader entity has been set to "Y" (by default is 
null this field); -> If your service run under transaction, no reason 
that your service correctly

* No log file nor zip file is written
  ** I see different case, if you are sure that your code works 
properly check if you didn't manage some silent exception ( as 
try{...}catch(Exception){ }) and is it's the case review you exception 
management.
  ** Increase your code with more log with good log4j configuration for 
track your service.
  ** Check if you haven't external element that can be delete your file 
by inadvertence
  ** a doubt, send an email with the generate file to your developer 
team in // to the storage.

  ** no solution -> Use the remote debugger

I hope you can find a solution to your problem
Nicolas

Thanks in advance for your help.

Giulio

Scheduled jobs weird behavior

[Giulio Speri - MpStyle Srl]

Hi all,

I write because I am facing strange behaviors with scheduled jobs and I am
running out of ideas about causes.

I have a two instances configuration of ofbiz running on two different
servers (hosted by a third party company); they handle two eCommerce site
on a multi-tenant environment.
OFBiz requests are served via an Apache Server that redirects them to one
of the two instances with a load balancer.
OFBiz version is 13.07.03.


The problem is this.

I have a service "exportOrders" the must run three times a day, in fixed
times (ex: 7, 11, 14), so I scheduled three different jobs, one for each
runtime (so job names will be something like : "ServiceName 0700",
"ServiceName 1100", "ServiceName 1400") that run the same service.
In short, the service reads ecommerce orders data, creates four text files
and zip them.
The result zip file is written in a "history" directory on the server and
then sent via ftp to a logistic company server.
To know if a certain order has been processed by this service, I added a
field "isExported" (type indicator) on OrderHeader entity, that is set to
"Y" at the end of the "exportOrders".
Within this service I also write a simple text file that logs operations
made for each execution of it (the file name is always different).

Now, here is the issue; sometimes (runtime in which happen seems random), I
notice that:
- the service in the Job List screen, has the state of "Finished" (no
errors);
- No log file nor zip file is written;
- the flag on the OrderHeader entity has been set to "Y" (by default is
null this field);
- no error or exception found in ofbiz/error log files;

The Job Poller on the second instance of ofbiz is disabled
("poll-enable=false" in serviceengine.xml), so that all the scheduled jobs
are run only on the first instance.

I am quite confused by this situation and I really don't know what and
where to look, to understand what happens.

Does anyone ever experienced a similar issue?
Thanks in advance for your help.

Giulio

-- 
Giulio Speri


*Mp Styl**e Srl*
via Antonio Meucci, 37
41019 Limidi di Soliera (MO)
T 059/684916
M 334/3779851 <(334)%20377-9851>

www.mpstyle.it

Chargebacks

[james]

How does the system handle a charge back of a customer payment that has
been confirmed?  Sometimes chargebacks don't happen until months after
an invoice has been paid.  I noticed you no longer have the ability to
void the payment after it has been confirmed.

Thanks,

James

Re: 答复: A major bug in OFBiz Manufacturing MRP function

[Jacopo Cappellato]

Dear Schumann,

thanks for the feedback and for your tests; please see my comment inline:

On Thu, Mar 29, 2018 at 5:14 PM, Schumann Ye 
wrote:

> [...]
> So after updating the column by "ALTER TABLE ofbiz.mrp_event change
> EVENT_DATE EVENT_DATE DATETIME(6); " and a reboot, MRP is running correctly.
>

OFBiz is configured to assign the DATETIME(3) to that field for MySQL [*];
I am wondering if 3 digits were not enough, even if it is weird because it
was not reported before. also in the error message that you have reported
the digits are not included at all so I am wondering if something went
wrong in the initialization of the database.
It would be useful if you could try to alter the table to use DATETIME(3)
instead of DATETIME(6) and test the MRP use case again. It would also be
useful to know how you setup the database; was it maybe copied from an
older version of OFBiz?

Kind regards,

Jacopo

[*]
https://svn.apache.org/repos/asf/ofbiz/ofbiz-framework/trunk/framework/entity/fieldtype/fieldtypemysql.xml

Re: Basic Q: Can ofbiz run in subdir and use HTTP auth?

[Jochen . Boutens]

Hello Shi, 

You are correct, the webserver (reverse proxy) in front of the ofbiz server wil 
validate the users credentials against ldap and send them in the header to the 
ofbiz server. 

What I don't yet understand is what the options are in ofbiz. Because I've 
deployed a number of systems this way, and there are many differend methods 
they handle it. 

On some systems, I have apache validating the credentials from the http header 
once more against ldap, then the application (ofbiz) just accepts that the 
credentials are validated and couples it to a local user that it creates on the 
fly. 

On some systems I have apache validating the credentials from the http header 
only to pass it to the application, where the application once more does it's 
own ldap validation and then couples it to a local user that it creates on the 
fly if needed. 

On other systems I don't need to configure basic auth on the webserver at all 
(own/nextcloud), the application just checks if the header is presend and logs 
the user in while validating the ldap credentials itself. etc. 

Sry for making it complicated, I'm just trying to understand how the process 
would actually work. 

On 2018/03/30 02:35:01, Shi Jinghai  wrote: 
> Hi Jochen,
> 
> Let's slow down.
> 
> For Q2, as you mentioned, you have a webserver deployed in front of OFBiz. If 
> so, the authn work is done in the webserver. The requests proxyed to OFBiz 
> are all authened. Right?
> 
> My puzzle is why you insist OFBiz has to validate against LDAP, for 
> authorization?
> 
> 
> -邮件原件-
> 发件人: Jochen.Boutens@ [mailto:finalbeta.net 
> jochen.bout...@finalbeta.net] 
> 发送时间: 2018年3月30日 1:52
> 收件人: user@ofbiz.apache.org
> 主题: Re: Basic Q: Can ofbiz run in subdir and use HTTP auth?
> 
> 
> Hello Shi, 
> 
> Thanks for your response. Q1 is clear. 
> 
> About your response to question 2. You seem to imply that LDAP + Basic auth 
> can be done. But I'm not sure what you are suggesting exaclty. 
> The Tomcat SSO you are talking about is this? ( 
> https://tomcat.apache.org/tomcat-8.0-doc/windows-auth-howto.html ) The only 
> refference it makes to Basic auth seems to be that it doesn't work and you 
> need SPNEGO. 
> Apero CAS and QAuth2 both require another server (something not in my setup) 
> right? 
> 
> To be clear, can ofbiz take the basic auth credentials from the header to 
> logon the user? (validating it against ldap, or trusting the servers 
> validation of the basic auth)
> 
> On 2018/03/29 08:44:07, Shi Jinghai  wrote: 
> > Q1: http://server/ofbiz/
> > Yes. It's a simple configuration for both Apache Httd and Nginx.
> > 
> > Q2: Http header basic authentication
> > Not sure whether Jacques has completed the new Tomcat SSO. If yes, then 
> > it's ready OOTB.
> > For this kind authentication, OFBiz also supports Apereo CAS (by LDAP 
> > plugin) and OAuth2 (by passport plugin).
> > 
> > Have fun,
> > 
> > -邮件原件-
> > 发件人: Jochen.Boutens@ [mailto:finalbeta.net 
> > jochen.bout...@finalbeta.net] 
> > 发送时间: 2018年3月29日 15:39
> > 收件人: user@ofbiz.apache.org
> > 主题: Basic Q: Can ofbiz run in subdir and use HTTP auth?
> > 
> > Hello, We are exploring functionality of several sollutions. Ofbiz seems to 
> > qualify for most tasks. 
> > 
> > I have two questions I would like to make sure before we begin testing: 
> > 
> > For integration into our systems we require the the solution to run under a 
> > subdirectory of the root of the webserver. (http://server/ofbiz/). 
> > ( The reason for this is that ofbiz will be reverse proxied and that 
> > http://reverseproxy/ is used for something else. A differend domain is not 
> > a option because of question two).
> > 
> > For integration into our systems we prefer that the application can use 
> > authentication data in the http header (Basic Authorization/Http 
> > authorization). Our reverse proxy sends the users (LDAP) credentials in the 
> > header allowing applications to automatically log the user in. 
> > 
> > Can these things be done with Ofbiz? 
> > 
> > Thanks for your responses. 
> > 
> > 
> > 
> 

Re: we attended a meetup at ShangHai China

[Pierre Smits]

My apologies, accidentally sent to the wrong user ML.


Best regards,

Pierre Smits

Apache Trafodion , Vice President
Apache Directory , PMC Member
Apache Incubator , committer
Apache OFBiz , contributor since 2008
Apache Steve , committer

On Fri, Mar 30, 2018 at 9:14 AM, Pierre Smits 
wrote:

> FYI,
>
> Follow-up posting to the private@
>
> Best regards,
>
> Pierre Smits
>
> Apache Trafodion , Vice President
> Apache Directory , PMC Member
> Apache Incubator , committer
> Apache OFBiz , contributor since 2008
> Apache Steve , committer
>
> -- Forwarded message --
> From: Liu, Ming (Ming) 
> Date: Fri, Mar 30, 2018 at 6:33 AM
> Subject: RE: we attended a meetup at ShangHai China
> To: "priv...@trafodion.apache.org" 
>
>
> Hi, Dave, and all,
>
>
>
> The meetup is at ShangHai China, hosted by DBAPlus community.
>
> There are 50+ people attended.
>
> 4 topics in the meetup.
>
> They will write something later, and I can copy some more details once
> they publish the news.
>
>
>
> Most of the audience (49 out of 50) never heard Trafodion, only one person
> know this project and even try to download and installed Trafodion. But
> give up later. Others never heard of it.
>
>
>
> Questions are most about how to manage/monitor this database system.
>
> And one question is why Hadoop can scale out to 1000 nodes but traditional
> MPP cannot scale out well, which I don’t have a good answer.
>
> Another question is how to compare with Kudu
>
>
>
> I mentioned this here, because in the past, we will add this into the
> poddling report, as TLP, I think we still need a report, and we can add
> this event in.
>
>
>
> thanks,
>
> Ming
>
>
>
>
>
> *From:* Dave Birdsall 
> *Sent:* Thursday, March 29, 2018 11:41 PM
> *To:* priv...@trafodion.apache.org
> *Subject:* RE: we attended a meetup at ShangHai China
>
>
>
> +1 Thanks for doing this, Ming.
>
>
>
> Perhaps you could send a summary of your meetup to this list? Were there
> many people in attendance? How was audience interest? What sorts of
> questions did the audience ask?
>
>
>
> *From:* Jacques Le Roux 
> *Sent:* Thursday, March 29, 2018 6:19 AM
> *To:* priv...@trafodion.apache.org
> *Subject:* Re: we attended a meetup at ShangHai China
>
>
>
> +1 sounds a good idea to me
>
> Jacques
>
>
>
> Le 29/03/2018 à 03:27, Liu, Ming (Ming) a écrit :
>
> Hi, all,
>
>
>
> There was a meetup hosted by DBAPlus community at ShangHai China, Liu Ming
> attended the meetup and gave a presentation to introduce the Apache
> Trafodion.
>
> I am thinking this event can be added to our report to Apache community?
> So if required, I can provide more details.
>
>
>
> Thanks
>
> Ming
>
>
>
>
>
>
>
>

Fwd: we attended a meetup at ShangHai China

[Pierre Smits]

FYI,

Follow-up posting to the private@

Best regards,

Pierre Smits

Apache Trafodion , Vice President
Apache Directory , PMC Member
Apache Incubator , committer
Apache OFBiz , contributor since 2008
Apache Steve , committer

-- Forwarded message --
From: Liu, Ming (Ming) 
Date: Fri, Mar 30, 2018 at 6:33 AM
Subject: RE: we attended a meetup at ShangHai China
To: "priv...@trafodion.apache.org" 


Hi, Dave, and all,



The meetup is at ShangHai China, hosted by DBAPlus community.

There are 50+ people attended.

4 topics in the meetup.

They will write something later, and I can copy some more details once they
publish the news.



Most of the audience (49 out of 50) never heard Trafodion, only one person
know this project and even try to download and installed Trafodion. But
give up later. Others never heard of it.



Questions are most about how to manage/monitor this database system.

And one question is why Hadoop can scale out to 1000 nodes but traditional
MPP cannot scale out well, which I don’t have a good answer.

Another question is how to compare with Kudu



I mentioned this here, because in the past, we will add this into the
poddling report, as TLP, I think we still need a report, and we can add
this event in.



thanks,

Ming





*From:* Dave Birdsall 
*Sent:* Thursday, March 29, 2018 11:41 PM
*To:* priv...@trafodion.apache.org
*Subject:* RE: we attended a meetup at ShangHai China



+1 Thanks for doing this, Ming.



Perhaps you could send a summary of your meetup to this list? Were there
many people in attendance? How was audience interest? What sorts of
questions did the audience ask?



*From:* Jacques Le Roux 
*Sent:* Thursday, March 29, 2018 6:19 AM
*To:* priv...@trafodion.apache.org
*Subject:* Re: we attended a meetup at ShangHai China



+1 sounds a good idea to me

Jacques



Le 29/03/2018 à 03:27, Liu, Ming (Ming) a écrit :

Hi, all,



There was a meetup hosted by DBAPlus community at ShangHai China, Liu Ming
attended the meetup and gave a presentation to introduce the Apache
Trafodion.

I am thinking this event can be added to our report to Apache community? So
if required, I can provide more details.



Thanks

Ming