Index scan timeout on query

[biozal]

This is a repeat of the question here:

Couchbase 6 Index scan timeout

Hi everybody, I’m working on a Couchbase 6 cluster with 5 nodes. I have a Bucket with 10M documents and 16GB ram quota. I perform an aggregation query using python sdk over an index. Usually I am able to extracts documents: Get 638605 documents in 90.60135912895203 seconds Sometimes I get: couchbase.exceptions.CouchbaseException: <RC=0xCD[LCB_ERR_INTERNAL_SERVER_FAILURE (205)], HTTP Request failed Index scan timed out - cause: Index scan timed out There is no way for me to improve index …