[syslog-ng] Need help to send Datetime in BSON ISODATE to MongoDB?

[Balazs Scheidler]

This documentation
https://www.mongodb.com/docs/manual/reference/bson-types/#date shows that
mongodb needs a 64 bit integer value to George l represent datetime, which
is the number of milliseconds since the epoch.

You will need to tell syslog-ng to encode this value as an integer.

pair("datetime" int64("${S_UNIXTIME}${S_MSEC}"))


Please note the int64 type hint


On Sun, Aug 6, 2023, 20:52 Ibrahim Al Mahfooz <ibrahim.nezar at sevennet.net>
wrote:

> Hello Evan,
>
> Thanks for your response,
>
>> If you change your datetime to be compsed of the epoc and the
>> milliseconds it should work.
>>
>> pair("datetime" "${S_UNIXTIME}${S_MSEC}")
>>
>> I made the change but didn't work, got same log error, also you can see
> the datetime is UNIX+MSEC is reflected in the datetime pair but
> [2023-08-06T21:38:53.717614] Outgoing message to MongoDB destination;
> message='datetime=1691347133717 host=10.36.0.6 portaction=initial
> portstatus=assigned privateip=10.34.102.175 publicip=98.75.22.22
> publicportrange=9048~10047 ', driver='d_mongodb_ttl#0'
> [2023-08-06T21:38:53.718564] Failed to insert into MongoDB;
> time_reopen='10', reason='\'datetime\' must be present and contain a valid
> BSON UTC datetime value', driver='d_mongodb_ttl#0'
>
> From what I understand from MongoDB, BSON format is mandatory, and MongoDB
> expectation is this binary format only, if syslog-ng is not capable of
> sending such format, most probably things will not work out.
>
> Do you have a working MongoDB Time-Series setup with syslog-ng before?
>
> Best regards
>
>
> On Sun, 6 Aug 2023 at 18:04, Ibrahim Al Mahfooz <
> ibrahim.nezar at sevennet.net> wrote:
>
>> Hello,
>>
>> I have integration working fine between syslog-ng v3.38 and MongoDB v6. I
>> am working to enable MongoDB Time-Series Collections on a testing DB for
>> the purpose of having better efficiency and improved queries over time.
>>
>> I created the DB and collection, tested it by Mongo Compass client, then
>> I tried to send the data from syslog-ng but it didn't work. MongoDB is
>> throwing the following error:
>> "17:12:57. 483 | [2023-08-06T17:12:57.355549] Failed to insert into
>> MongoDB; time_reopen='10', reason='\'datetime\' must be present and contain
>> a valid BSON UTC datetime value', driver='d_mongodb_ttl#0"
>>
>> My understanding is that it is a must to send the time/date to MongoDB
>> with Time Series enabled DB a BSON format Date. Any suggestions?
>>
>> *Below is the mongoDB destination config:*
>>
>> destination d_mongodb_ttl {
>>         mongodb(
>>         uri("mongodb://192.168.1.19:27017/syslog-ng_ttl")
>>         collection("logs")
>>         value-pairs(
>>         scope("selected-macros")
>>         exclude("SOURCEIP")
>>         exclude("TAGS")
>>         pair("datetime" "${S_ISODATE}")
>>         pair("privateip" "${privateip}")
>>         pair("publicip" "${publicip}")
>>         pair("publicportrange" "${publicportrange}")
>>         pair("portaction" "${AI}")
>>         pair("portstatus" "${AL}")
>>         pair("host" "${HOST}"))
>>         );
>> };
>>
>>
>> Appreciate your help
>>
>>
>>
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