Hello Support Team We have upgraded Signoz to latest version

Question

Hello Support Team We have upgraded Signoz to latest version 0 12 0 but after that we are facing some issue with No data to display for any dashboards randomly if we refresh it multiple time then it will start to appear data but from other dashboards data will be showing as No data to display

Chintan Patel · Answer

After we refresh it it will showing the data

Chintan Patel · Answer

Can someone please help on this

Pranay · Answer

< Chintan Patel> Are you using ClickHouse queries in dashboards Once you start seeing that data does it get into `No Data` state again

Ankit Nayan · Answer

< Chintan Patel> what is the shardCount and replicaCount of clickhouse you are using `replicaCount` has to be 1 `v0 12 0` only supports multiple shards and not multiple replicas of clickhouse The data disappearing issue could be due to multiple replicas if configured

Chintan Patel · Answer

Yes < Ankit Nayan> We have made 2 replicas of ClickHouse

Chintan Patel · Answer

We made replica count to 1 and it is working fine

Chintan Patel · Answer

But question is there let s say somehow of one of the shard is crashed then how we can recover that shard data < Ankit Nayan>

Ankit Nayan · Answer

< Chintan Patel> replicas is the answer for that unless you backup clickhouse data We shall be releasing support for replication soon

Chintan Patel · Answer

okay thanks for the information < Ankit Nayan>