We have a web application running under heavy load and we hold frequently used data in couchbase for performance purposes.We have a cluster with six nodes and we are dealing with a fantastic problem these days.We detected excessive CPU usage on one of our servers and got a dump.When we examine this dump file, there is a thread that is hanging for 30 minutes.It seems like this couchbase is trying to get vbucket.Any ideas?
00000100b184aff0 000007feed4191e9 System.Security.Cryptography.HashAlgorithm.ComputeHash(Byte[])
00000100b184b030 000007fe8f983167 Couchbase.Core.Buckets.VBucketKeyMapper.GetIndex(System.String)
00000100b184b0a0 000007fe8f983253 Couchbase.Core.Buckets.VBucketKeyMapper.MapKey(System.String)
00000100b184b0f0 000007fe8f9839d8 Couchbase.Core.Buckets.VBucketKeyMapper.MapKey(System.String, UInt32)
00000100b184b120 000007fe8f9835aa Couchbase.Core.Buckets.CouchbaseRequestExecuter.SendWithRetry[[System.__Canon, mscorlib]](Couchbase.IO.Operations.IOperation`1)
00000100b184b190 000007fe8f9bc680 Couchbase.CouchbaseBucket.Upsert[[System.__Canon, mscorlib]](Couchbase.IDocument`1)