Opinum usage limits

By accepting Opinum terms of use, all customers agree to abide by the limits below. These limits make it possible to guarantee the proper functioning of Opinum services. Over time, the list of limits will be detailed and updated to cover all Opinum services.

If you have a specific use case that you need Opinum to support beyond these limits, please contact our support team support@opinum.com.

Prerequisite

Browsers

Opinum DataHub supports the following browsers:

  • Chrome from version 70
  • Microsoft Edge from version from version 80
  • Firefox from version 60
  • Safari from version 13
  • Opera from version 50
Warning

For security reasons Opinum Data hub does not support any version of Internet Explorer, including all Windows 10 versions.

Mobile app

The mobile app is available for Android (6.0.0 and up) only. If you need a version of the mobile app for Iphone contact your account manager.

Upload limits

File size limits

The maximum upload file size is 1 megabyte, for all files except Opinum Standard Data File format, of any extension, uploaded by any method in Opinum.

The maximum upload file size is 20 megabytes, for Opinum Standard data File, uploaded by any method in Opinum.

Warning

Above this size Opinum can't guarantee than the file will be correctly ingested and processed.

FTP connections

A maximum of 1 000 connections per day are allowed on the FTP. Above 1 000 connections a warning will be sent to the client to decrease the number of connections under 1 000 per day. If the connections don't decrease after 48 hours, the access to the FTP will be suspended on the account, until the necessary is done.

Tip

If you need more than 1 000 connections per day, you should send your data by HTTP on the API. Learn more about Opinum API

FTP ingestion

The files uploaded on the FTP are ingested at the frequency of 1 file every 2 seconds. For example, if 1 000 files are uploaded at the same time, they will be ingested into Opisense in 33 minutes.

Warning

Any massive upload that exceeds the usual account data ingestion must be monitored by Opinum (e.g. history loading, account reset, etc.). A request must first be addressed to support@opinum.com.

Once your request is approved, the files must be uploaded on the FTP under those conditions:

  • A new folder named .toprocess should be created
  • The folder can contain a maximum of 100 000 files.
  • If more than 100 000 files are to be processed, then a second folder named .toprocess2 should be created at the root as well (especially no sub-folders).

Data limits

Data granularity

The minimum granularity for receiving a datapoint is 1 per minute.

Data calculation

The maximum duration of the computation of a calculated variable is 20 seconds.

Warning

If the calculation is so complex that it needs more than 20 seconds, the calculated variables may be deactivated by Opinum. Our support team will contact you to find a solution to compute your calculations in the respect of the system.

Datapoint upload (write)

The timestamp of datapoints must be between D-5 years and D+2 years. Datapointsoints outside this period are ignored.

The maximum number of datapoints -raw and calculated- which can be written (and therefore uploaded) is 2 per granularity (1 overwrite). For example, for a 15-minute variable, you may write one datapoint per 15 minutes twice.

Warning

If the number of writes is higher, data ingestion may be deactivated by Opinum. Our support team will contact you to check how your data may be ingested in the respect of the system.

Stored datapoints

The maximum number of datapoints (raw and calculated) which can be stored is 1 per granularity (i.e. no oversampling). For example, for a 15-minute variable, you may store one datapoint per 15 minutes.

Warning

If the number of stored datapoints is higher, data ingestion may be deactivated by Opinum. Our support team will contact you to check how your data may be ingested in the respect of the system.

Datapoints displayed in the UI

The data displayed in the UI is limited to a period of 5 years in the past and 2 years in the future. This limitation is also implemented in the data ingestion.