Is it possible to use ForEachShard and pipeline together ?

[bibicu123]

In case of ClusterClient is it possible to use pipelines and ForEachShard together?
I am having trouble figuring out how.

To give you more context:

we have a pipeline where we call:
keys aaa*
keys bbb*
keys ccc*

So we should be able to call the pipeline ForEachShard in order to get all keys

[elena-kolevska]

Pipelines are always bound to a single shard because they exist on top of different connections, so it's not possible to reuse the same pipeline for multiple shards (to make this more obvious... imagine the shards on different physical servers). Also, if you're using this in production, I would advise against using KEYS since it is a blocking command. Instead, you should use SCAN.