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For expensive operations we implement a server side controlled polling background jobs mechanism called „Long Polling“.
Let’s take for example the zipping of a folder. If the user wants to download the zip of a large folder, it requires a lot of time to prepare the zip file.
To maximize user feedback possibility the initial request will complete successfully and start a background job. The request will also provide a url where the client can poll for the result.
Furthermore the polling requests are not immediatly returned by the server but are delayed depending on how often the jobs has already been polled for.
For some polling jobs it is also not possible to start multiple instances. For example there can only be one running zip job.
See the table below for a explanation on which jobs can be started multiple times at once.
Overview for all Polling Jobs:
|Name||Description||Mulitple startable at once|
|Copy Job||Copy a folder or file somewhere else in the tree.||false|
|Move Job||Move a folder or file somewhere else in the tree.||true|
|Remove Job||Remove a folder or file from the trash.||true|
|Restore Job||Restore a folder or file from the trash.||false|
|Rights Job||Changing rights (read, write, delete) for roles.||false|
|Search Job||Search for a folder or file inside the tree.||false|
|Trash Job||Get the content of the user’s trash.||false|
|Zip Job||Creating a zip file for a folder, file or gallery.||false|