Re: Cron-schedule not working

[Asanka Sanjaya]

Hi Josef,
Good suggestion. I will try it out and update the thread.

On Wed, Jan 2, 2019 at 2:40 PM  wrote:

> Hi Asanka
>
>
>
> For a CRON which runs once a day at 7 AM I use this pattern “0 0 7 * * ?”.
> So I don’t see any reason why your CRON doesn’t work. Can you try with an
> example like 1 AM instead of midnight and see what’s happening?
>
>
>
> Cheers Josef
>
>
>
>
>
> *From: *Asanka Sanjaya 
> *Reply-To: *"users@nifi.apache.org" 
> *Date: *Wednesday, 2 January 2019 at 07:01
> *To: *"users@nifi.apache.org" 
> *Subject: *Re: Cron-schedule not working
>
>
>
> Hi All,
>
>
>
> Does anybody else have any idea regarding this?
>
>
>
> On Tue, Jan 1, 2019 at 7:26 PM Chad Woodhead 
> wrote:
>
> Hi Asanka,
>
>
>
> Yes you are correct, my mistake. NiFi uses the Quartz Cron and not the
> Linux cron.
>
>
>
> Every day at midnight is: 0 0 0 * * ?
>
>
>
> My apologies.
>
>
>
> -Chad
>
>
> On Jan 1, 2019, at 1:55 AM, Asanka Sanjaya  wrote:
>
> Hi Chad,
>
>
>
> The nifi docs say that the expression should start with seconds and not
> with minutes.  https://nifi.apache.org/docs/nifi-docs/html/user-guide.html
>
>
>
> [image: image.png]
>
>
>
> This is the example that they have given:
>
> The string 0 0 13 * * ? indicates that you want to schedule the processor
> to run at 1:00 PM every day.
>
>
>
> It seems like nifi cron expressions are quite different.
>
>
>
>
>
> On Tue, Jan 1, 2019 at 11:58 AM Asanka Sanjaya  wrote:
>
> Thanks Chad!
>
>
>
> On Mon, Dec 31, 2018 at 6:22 PM Chad Woodhead 
> wrote:
>
> Hi Asanka,
>
>
>
> The cron expression for every night at midnight is: 0 0 * * *
>
>
>
> 0 0 0 * * is not a valid cron expression as the 3rd field (day of month)
> cannot be a 0.
>
>
>
> Here is an online cron editor that can help build your cron expressions:
> https://crontab.guru/
>
>
>
> Also here is simple cron tester to see the next n iterations of your cron
> expression: http://cron.schlitt.info/
>
>
>
> -Chad
>
>
>
> On Dec 31, 2018, at 2:04 AM, Asanka Sanjaya  wrote:
>
>
>
> Hello,
>
>
>
> I use a cron-driven processor to start the workflow and the expression is:
>
>
>
> 0 0 0 * * ?
>
>
>
> I expect the processor to run each day at 00:00 hours. But it runs each
> hour instead.
>
>
>
> Processor configuration:
>
> 
>
>
>
>
>
> Flow:
>
>
>
> 
>
>
>
> What could be the possible reasons for this?
>
>
>
>
>
> --
>
> *Thanks,*
>
> *Asanka Sanjaya Herath*
>
> *Senior Software Engineer | Zone24x7*
>
>
>
>
>
>
> --
>
> *Thanks,*
>
> *Asanka Sanjaya Herath*
>
> *Senior Software Engineer **|** Zone24x7*
>
>
>
>
> --
>
> *Thanks,*
>
> *Asanka Sanjaya Herath*
>
> *Senior Software Engineer **|** Zone24x7*
>
>
>
>
> --
>
> *Thanks,*
>
> *Asanka Sanjaya Herath*
>
> *Senior Software Engineer **|** Zone24x7*
>


-- 

*Thanks,*

Asanka Sanjaya Herath

Senior Software Engineer | Zone24x7

Re: Cron-schedule not working

[Josef.Zahner1]

Hi Asanka

For a CRON which runs once a day at 7 AM I use this pattern “0 0 7 * * ?”. So I 
don’t see any reason why your CRON doesn’t work. Can you try with an example 
like 1 AM instead of midnight and see what’s happening?

Cheers Josef


From: Asanka Sanjaya 
Reply-To: "users@nifi.apache.org" 
Date: Wednesday, 2 January 2019 at 07:01
To: "users@nifi.apache.org" 
Subject: Re: Cron-schedule not working

Hi All,

Does anybody else have any idea regarding this?

On Tue, Jan 1, 2019 at 7:26 PM Chad Woodhead 
mailto:chadwoodh...@gmail.com>> wrote:
Hi Asanka,

Yes you are correct, my mistake. NiFi uses the Quartz Cron and not the Linux 
cron.

Every day at midnight is: 0 0 0 * * ?


My apologies.

-Chad

On Jan 1, 2019, at 1:55 AM, Asanka Sanjaya 
mailto:angal...@gmail.com>> wrote:
Hi Chad,

The nifi docs say that the expression should start with seconds and not with 
minutes.  https://nifi.apache.org/docs/nifi-docs/html/user-guide.html

[image.png]

This is the example that they have given:
The string 0 0 13 * * ? indicates that you want to schedule the processor to 
run at 1:00 PM every day.


It seems like nifi cron expressions are quite different.


On Tue, Jan 1, 2019 at 11:58 AM Asanka Sanjaya 
mailto:angal...@gmail.com>> wrote:
Thanks Chad!

On Mon, Dec 31, 2018 at 6:22 PM Chad Woodhead 
mailto:chadwoodh...@gmail.com>> wrote:
Hi Asanka,

The cron expression for every night at midnight is: 0 0 * * *

0 0 0 * * is not a valid cron expression as the 3rd field (day of month) cannot 
be a 0.

Here is an online cron editor that can help build your cron expressions: 
https://crontab.guru/

Also here is simple cron tester to see the next n iterations of your cron 
expression: http://cron.schlitt.info/

-Chad


On Dec 31, 2018, at 2:04 AM, Asanka Sanjaya 
mailto:angal...@gmail.com>> wrote:

Hello,

I use a cron-driven processor to start the workflow and the expression is:

0 0 0 * * ?

I expect the processor to run each day at 00:00 hours. But it runs each hour 
instead.

Processor configuration:



Flow:



What could be the possible reasons for this?


--
Thanks,
Asanka Sanjaya Herath
Senior Software Engineer | Zone24x7



--
Thanks,

Asanka Sanjaya Herath

Senior Software Engineer | Zone24x7


--
Thanks,

Asanka Sanjaya Herath

Senior Software Engineer | Zone24x7


--
Thanks,

Asanka Sanjaya Herath

Senior Software Engineer | Zone24x7


smime.p7s
Description: S/MIME Cryptographic Signature

Re: Cron-schedule not working

[Asanka Sanjaya]

Hi All,

Does anybody else have any idea regarding this?

On Tue, Jan 1, 2019 at 7:26 PM Chad Woodhead  wrote:

> Hi Asanka,
>
> Yes you are correct, my mistake. NiFi uses the Quartz Cron and not the
> Linux cron.
>
> Every day at midnight is: 0 0 0 * * ?
>
> My apologies.
>
> -Chad
>
> On Jan 1, 2019, at 1:55 AM, Asanka Sanjaya  wrote:
>
> Hi Chad,
>
> The nifi docs say that the expression should start with seconds and not
> with minutes.  https://nifi.apache.org/docs/nifi-docs/html/user-guide.html
>
> [image: image.png]
>
> This is the example that they have given:
> The string 0 0 13 * * ? indicates that you want to schedule the processor
> to run at 1:00 PM every day.
>
> It seems like nifi cron expressions are quite different.
>
>
> On Tue, Jan 1, 2019 at 11:58 AM Asanka Sanjaya  wrote:
>
>> Thanks Chad!
>>
>> On Mon, Dec 31, 2018 at 6:22 PM Chad Woodhead 
>> wrote:
>>
>>> Hi Asanka,
>>>
>>> The cron expression for every night at midnight is: 0 0 * * *
>>>
>>> 0 0 0 * * is not a valid cron expression as the 3rd field (day of month)
>>> cannot be a 0.
>>>
>>> Here is an online cron editor that can help build your cron expressions:
>>> https://crontab.guru/
>>>
>>> Also here is simple cron tester to see the next n iterations of your
>>> cron expression: http://cron.schlitt.info/
>>>
>>> -Chad
>>>
>>> On Dec 31, 2018, at 2:04 AM, Asanka Sanjaya  wrote:
>>>
>>> Hello,
>>>
>>> I use a cron-driven processor to start the workflow and the expression
>>> is:
>>>
>>> 0 0 0 * * ?
>>>
>>> I expect the processor to run each day at 00:00 hours. But it runs each
>>> hour instead.
>>>
>>> Processor configuration:
>>> 
>>>
>>>
>>> Flow:
>>>
>>> 
>>>
>>> What could be the possible reasons for this?
>>>
>>>
>>> --
>>>
>>> *Thanks,*
>>> Asanka Sanjaya Herath
>>> Senior Software Engineer | Zone24x7
>>>
>>>
>>>
>>
>> --
>>
>> *Thanks,*
>>
>> Asanka Sanjaya Herath
>>
>> Senior Software Engineer | Zone24x7
>>
>
>
> --
>
> *Thanks,*
>
> Asanka Sanjaya Herath
>
> Senior Software Engineer | Zone24x7
>
>

-- 

*Thanks,*

Asanka Sanjaya Herath

Senior Software Engineer | Zone24x7

Re: Cron-schedule not working

[Chad Woodhead]

Hi Asanka,

Yes you are correct, my mistake. NiFi uses the Quartz Cron and not the Linux 
cron.

Every day at midnight is: 0 0 0 * * ?

My apologies.

-Chad

> On Jan 1, 2019, at 1:55 AM, Asanka Sanjaya  wrote:
> 
> Hi Chad,
> 
> The nifi docs say that the expression should start with seconds and not with 
> minutes.  https://nifi.apache.org/docs/nifi-docs/html/user-guide.html
> 
> 
> 
> This is the example that they have given: 
> The string 0 0 13 * * ? indicates that you want to schedule the processor to 
> run at 1:00 PM every day.
> 
> It seems like nifi cron expressions are quite different.
> 
> 
>> On Tue, Jan 1, 2019 at 11:58 AM Asanka Sanjaya  wrote:
>> Thanks Chad! 
>> 
>>> On Mon, Dec 31, 2018 at 6:22 PM Chad Woodhead  
>>> wrote:
>>> Hi Asanka,
>>> 
>>> The cron expression for every night at midnight is: 0 0 * * *
>>> 
>>> 0 0 0 * * is not a valid cron expression as the 3rd field (day of month) 
>>> cannot be a 0. 
>>> 
>>> Here is an online cron editor that can help build your cron expressions: 
>>> https://crontab.guru/ 
>>> 
>>> Also here is simple cron tester to see the next n iterations of your cron 
>>> expression: http://cron.schlitt.info/
>>> 
>>> -Chad
>>> 
 On Dec 31, 2018, at 2:04 AM, Asanka Sanjaya  wrote:
 
 Hello,
 
 I use a cron-driven processor to start the workflow and the expression is:
 
 0 0 0 * * ?
 
 I expect the processor to run each day at 00:00 hours. But it runs each 
 hour instead. 
 
 Processor configuration:
 
 
 
 Flow:
 
 
 
 What could be the possible reasons for this?
 
 
 -- 
 Thanks,
 Asanka Sanjaya Herath
 Senior Software Engineer | Zone24x7
>>> 
>> 
>> 
>> -- 
>> Thanks,
>> Asanka Sanjaya Herath
>> Senior Software Engineer | Zone24x7
> 
> 
> -- 
> Thanks,
> Asanka Sanjaya Herath
> Senior Software Engineer | Zone24x7

Re: Cron-schedule not working

[Asanka Sanjaya]

Hi Chad,

The nifi docs say that the expression should start with seconds and not
with minutes.  https://nifi.apache.org/docs/nifi-docs/html/user-guide.html

[image: image.png]

This is the example that they have given:
The string 0 0 13 * * ? indicates that you want to schedule the processor
to run at 1:00 PM every day.

It seems like nifi cron expressions are quite different.


On Tue, Jan 1, 2019 at 11:58 AM Asanka Sanjaya  wrote:

> Thanks Chad!
>
> On Mon, Dec 31, 2018 at 6:22 PM Chad Woodhead 
> wrote:
>
>> Hi Asanka,
>>
>> The cron expression for every night at midnight is: 0 0 * * *
>>
>> 0 0 0 * * is not a valid cron expression as the 3rd field (day of month)
>> cannot be a 0.
>>
>> Here is an online cron editor that can help build your cron expressions:
>> https://crontab.guru/
>>
>> Also here is simple cron tester to see the next n iterations of your cron
>> expression: http://cron.schlitt.info/
>>
>> -Chad
>>
>> On Dec 31, 2018, at 2:04 AM, Asanka Sanjaya  wrote:
>>
>> Hello,
>>
>> I use a cron-driven processor to start the workflow and the expression is:
>>
>> 0 0 0 * * ?
>>
>> I expect the processor to run each day at 00:00 hours. But it runs each
>> hour instead.
>>
>> Processor configuration:
>> 
>>
>>
>> Flow:
>>
>> 
>>
>> What could be the possible reasons for this?
>>
>>
>> --
>>
>> *Thanks,*
>> Asanka Sanjaya Herath
>> Senior Software Engineer | Zone24x7
>>
>>
>>
>
> --
>
> *Thanks,*
>
> Asanka Sanjaya Herath
>
> Senior Software Engineer | Zone24x7
>


-- 

*Thanks,*

Asanka Sanjaya Herath

Senior Software Engineer | Zone24x7

Re: Cron-schedule not working

[Asanka Sanjaya]

Thanks Chad!

On Mon, Dec 31, 2018 at 6:22 PM Chad Woodhead 
wrote:

> Hi Asanka,
>
> The cron expression for every night at midnight is: 0 0 * * *
>
> 0 0 0 * * is not a valid cron expression as the 3rd field (day of month)
> cannot be a 0.
>
> Here is an online cron editor that can help build your cron expressions:
> https://crontab.guru/
>
> Also here is simple cron tester to see the next n iterations of your cron
> expression: http://cron.schlitt.info/
>
> -Chad
>
> On Dec 31, 2018, at 2:04 AM, Asanka Sanjaya  wrote:
>
> Hello,
>
> I use a cron-driven processor to start the workflow and the expression is:
>
> 0 0 0 * * ?
>
> I expect the processor to run each day at 00:00 hours. But it runs each
> hour instead.
>
> Processor configuration:
> 
>
>
> Flow:
>
> 
>
> What could be the possible reasons for this?
>
>
> --
>
> *Thanks,*
> Asanka Sanjaya Herath
> Senior Software Engineer | Zone24x7
>
>
>

-- 

*Thanks,*

Asanka Sanjaya Herath

Senior Software Engineer | Zone24x7

Re: Cron-schedule not working

[Chad Woodhead]

Hi Asanka,

The cron expression for every night at midnight is: 0 0 * * *

0 0 0 * * is not a valid cron expression as the 3rd field (day of month) cannot 
be a 0. 

Here is an online cron editor that can help build your cron expressions: 
https://crontab.guru/  

Also here is simple cron tester to see the next n iterations of your cron 
expression: http://cron.schlitt.info/ 

-Chad

> On Dec 31, 2018, at 2:04 AM, Asanka Sanjaya  wrote:
> 
> Hello,
> 
> I use a cron-driven processor to start the workflow and the expression is:
> 
> 0 0 0 * * ?
> 
> I expect the processor to run each day at 00:00 hours. But it runs each hour 
> instead. 
> 
> Processor configuration:
> 
> 
> 
> Flow:
> 
> 
> 
> What could be the possible reasons for this?
> 
> 
> -- 
> Thanks,
> Asanka Sanjaya Herath
> Senior Software Engineer | Zone24x7

Cron-schedule not working

[Asanka Sanjaya]

Hello,

I use a cron-driven processor to start the workflow and the expression is:

0 0 0 * * ?

I expect the processor to run each day at 00:00 hours. But it runs each
hour instead.

Processor configuration:
[image: image.png]


Flow:

[image: image.png]

What could be the possible reasons for this?


-- 

*Thanks,*

Asanka Sanjaya Herath

Senior Software Engineer | Zone24x7