elasticsearch - If a shard goes down, then, after re-allocating that shard, will data residing in that shard be retrievable -

i have manually allocated 3 primary shards particular node in elasticsearch. replicas of these shards reside in different nodes. now, let's say, primary shard number 2 goes down (for example, due overflow of data) without node on residing going down. possible retrieve data residing on particular shard, after manually re-allocate different node? if yes, how?

yes.

once node primary shard number 2 goes down replica shard on other node upgraded primary shard - allowing retrieve data. see here:

coping failure (es definitive guide)