PouchDB Database Detected Unknown Error

Question

I get a "Database with unknown error" message when replicating data from couchDB database. It starts to replicate, downloads several documents, and then some documents cannot be played. I can’t tell you exactly why this is happening.

CustomPouchError {status: 500, name: "unknown_error", message: "The database encountered an unknown error", error: true, result: Object}

Answer 1

There could be many reasons:

• CORS issues due to not being enabled on the server side: https://pouchdb.com/getting-started.html#enabling_cors
• if the uploaded documents are too large, there may be timeout problems: in this case, you can set the timeout on the couchDB configuration and on the client side during db replication ( https://pouchdb.com/api.html#replication )
• many other:)

But my final solution used the retry option in replication ( https://pouchdb.com/api.html#replication ), forcing me to retry in the event of a failure

PouchDB.replicate(localDB, baseRemoteDB, { live: true, retry: true, timeout: false } ) 

As a result, replication is suspended every two documents (instead of stopping with an unknown error), and it resumes after a few moments, starting from the first new document. Response time can also be set using the snooze function (see previous document)