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Forum Discussion
How long should I wait for /upload_session/finish_batch/check to complete?
In order to complete a batch it is necessary to call upload_session/finish_batch/check . The docs for this don't give any guidance on
How long to try calling this API for
How often to call...
Greg-DB
Dropbox Staff
Dropbox StaffThere isn't a guaranteed maximum time that one of these batch jobs may take. The processing time will depend on a few factors, such as how many files there are, etc., so it can vary.
Likewise, there isn't a best frequency for how often to poll these jobs. Once a second is fine. For larger batches, which may take longer given the larger amount of work to do, you could increase that a bit if you wish.
The 500 Internal Server Error indicates an issue on the Dropbox servers, so we'll have to look into that. For reference though, can you let me know if that's transient or if you can reliably reproduce that error, e.g., if you try again now? Thanks in advance!
> There isn't a guaranteed maximum time that one of these batch jobs may take. The processing time will depend on a few factors, such as how many files there are, etc., so it can vary.
There was only one file in the batch above so for it to take 2 minutes seems a long time. But then I have no idea what is going on behind the scenes!
> Likewise, there isn't a best frequency for how often to poll these jobs. Once a second is fine. For larger batches, which may take longer given the larger amount of work to do, you could increase that a bit if you wish.
OK.
> The 500 Internal Server Error indicates an issue on the Dropbox servers, so we'll have to look into that. For reference though, can you let me know if that's transient or if you can reliably reproduce that error, e.g., if you try again now?
I got that trace second hand from an rclone tester, but I believe it only happens quite rarely when doing a lot of transfers over a long time.
Thanks
- Greg-DB
ncw wrote:
I got that trace second hand from an rclone tester, but I believe it only happens quite rarely when doing a lot of transfers over a long time.
ncw Thanks! That seems to match what I can see on our side. It appears this was a transient availability issue.
ncw wrote:
Rclone retries this 10 times then gives up.
How quickly does Rclone perform these retries on a 500 like this? If it's in relatively quick succession, you may want to implement an exponential backoff to give the service more time to recover when this does occur.
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