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Today's Topics:
1. Re: Duplicate SQL entries for every event (tosiara)
----------------------------------------------------------------------
Message: 1
Date: Fri, 13 Aug 2021 13:31:50 +0300
From: tosiara <[email protected]>
To: Motion discussion list <[email protected]>
Subject: Re: [Motion-user] Duplicate SQL entries for every event
Message-ID:
<cachtdwtate9lp_rwunxye1p0gwtaeoj9vk3icdbytbwpqg9...@mail.gmail.com>
Content-Type: text/plain; charset="UTF-8"
Could you send me your exact motion config and mysql command output:
"describe events;"
I will try to check
On Thu, Jul 29, 2021 at 8:45 PM Shawn Ashe <[email protected]> wrote:
>
> I would find a way to log it, at least it's a symptom you can give to the
> motion team, and maybe something will become obvious to you
>
> On Thu, Jul 29, 2021, 1:05 PM David Powell <[email protected]> wrote:
>>
>> It's the %v replaceable parameter in the insert statement. Motion generates
>> it internally.
>> dp
>>
>> On July 29, 2021 11:26:25 AM Shawn Ashe <[email protected]> wrote:
>>>
>>> is the event_number a counter,or based on time/etc?
>>>
>>> Could be the events are going off to fast and you are getting duplicate
>>> event numbers.
>>>
>>> On Thu, Jul 29, 2021 at 12:15 PM David Powell <[email protected]> wrote:
>>>>
>>>> Oh, I understand your question better now. The event number is generated
>>>> by Motion automatically.
>>>>
>>>> David
>>>>
>>>> On July 29, 2021 11:11:01 AM David Powell <[email protected]> wrote:
>>>>>
>>>>>
>>>>> My understanding is that event_number is there for this very purpose - to
>>>>> make each event unique. I can't imagine another reason to have it.
>>>>>
>>>>> David
>>>>>
>>>>> On July 29, 2021 10:46:33 AM [email protected] wrote:
>>>>>>
>>>>>> Hi.
>>>>>>
>>>>>>
>>>>>> Also; "The primary key for the events table is
>>>>>> server_number,event_number,event_date, and camera_number."
>>>>>>
>>>>>> So, can the server_number, event_number, event_date and camera_number be
>>>>>> the same twice?
>>>>>>
>>>>>> I'm guessing server_number for sure, camera_number too. Event date? Yeah
>>>>>> possible if it's two events in tight enough sequence and sloppy enough
>>>>>> datetime datatype.
>>>>>>
>>>>>> event_number? ... doesn't sound likely but... what do i know - how does
>>>>>> that get generated?
>>>>>>
>>>>>>
>>>>>> Why not use an auto_intrement for primary key and have a composite index
>>>>>> on those other columns instead?
>>>>>>
>>>>>>
>>>>>> //Lars
>>>>>>
>>>>>>
>>>>>>
>>>>>> On 2021-07-29 16:59, John L. Poole wrote:
>>>>>>
>>>>>> The error message you shared, e.g. trigger of a primary key constraint,
>>>>>> suggests an error in program design. If you have a table with unique
>>>>>> constraints, e.g. every entry must be unique, you don't try to insert
>>>>>> the same record twice.
>>>>>>
>>>>>> I recommend you file a bug so everything is documented well and then the
>>>>>> developers can determine why they are attempting to insert something
>>>>>> already present, or at least testing for presence before attempting to
>>>>>> insert a record that may already exist.
>>>>>>
>>>>>> On 7/29/2021 7:27 AM, David Powell wrote:
>>>>>>
>>>>>> This is the whole SQL section of motion.conf:
>>>>>>
>>>>>> ############################################################
>>>>>> # Database and SQL Configuration parameters
>>>>>> ############################################################
>>>>>>
>>>>>> # The type of database being used if any.
>>>>>> database_type mysql
>>>>>>
>>>>>> # Database name to use. For sqlite3, the full path and name.
>>>>>> database_dbname cameras
>>>>>>
>>>>>> # The host on which the database is located
>>>>>> database_host localhost
>>>>>>
>>>>>> # Port used by the database.
>>>>>> database_port 3306
>>>>>>
>>>>>> # User account name for database.
>>>>>> database_user <redacted>
>>>>>>
>>>>>> # User password for database.
>>>>>> database_password <redacted>
>>>>>>
>>>>>> # Database wait for unlock time
>>>>>> database_busy_timeout 5
>>>>>>
>>>>>> # Log to the database when creating motion triggered image file
>>>>>> sql_log_picture off
>>>>>>
>>>>>> # Log to the database when creating a snapshot image file
>>>>>> sql_log_snapshot off
>>>>>>
>>>>>> # Log to the database when creating motion triggered movie file
>>>>>> sql_log_movie on
>>>>>>
>>>>>> # Log to the database when creating timelapse movie file
>>>>>> sql_log_timelapse off
>>>>>>
>>>>>> # SQL query at event start. See motion_guide.html
>>>>>> ; sql_query_start value
>>>>>>
>>>>>> # SQL query at event stop. See motion_guide.html
>>>>>> sql_query_stop INSERT INTO events
>>>>>> (server_number,camera_number,event_number,event_date,video_length,filename)
>>>>>> VALUES (1,%t,%v,{ts '%C'},null,'%f');
>>>>>>
>>>>>> # SQL query string that is sent to the database. See motion_guide.html
>>>>>> ; sql_query
>>>>>>
>>>>>> I had the query in sql_query but I moved it to sql_query_stop. That
>>>>>> didn't help.
>>>>>>
>>>>>> David
>>>>>>
>>>>>>
>>>>>> On 7/29/21 8:17 AM, Damian via Motion-user wrote:
>>>>>>
>>>>>> The SQL statement in motion.conf is
>>>>>> INSERT INTO events
>>>>>> (server_number,camera_number,event_number,event_date,video_length,filename)
>>>>>> VALUES (1,%t,%v,{ts '%C'},null,'%f');
>>>>>>
>>>>>> The records /are/ there in the database, and I run a custom program to
>>>>>> extract them for displaying the snapshots and movies in a web page
>>>>>>
>>>>>>
>>>>>> Which sql_log_* statements are enabled?
>>>>>>
>>>>>>
>>>>>> _______________________________________________
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>>>>>> https://motion-project.github.io/
>>>>>>
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>>>>>>
>>>>>>
>>>>>>
>>>>>> _______________________________________________
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>>>>>>
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>>>>>>
>>>>>> --
>>>>>>
>>>>>> John Laurence Poole
>>>>>> 1566 Court ST NE
>>>>>> Salem OR 97301-4241
>>>>>> 707-812-1323 office
>>>>>>
>>>>>>
>>>>>>
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>>>>>>
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>>>>>
>>>>>
>>>>
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>>>
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>>
>>
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