@Rakesh4 It looks like you're running to the limits what can be stored on these nodes. From the node stats I see
heap_used_percent: 93
store: {
size_in_bytes: 2116493376066
},
accounting: {
limit_size_in_bytes: 10624040960,
limit_size: "9.8gb",
estimated_size_in_bytes: 7462701306,
estimated_size: "6.9gb",
overhead: 1,
tripped: 0
},
which indicates that you're storing 2TB on this node, which has a 10GB heap. 6.9GB (see accounting breaker) is just to keep in-memory shard structures.
You should increase heap size or move towards using the frozen indices feature.