Index falling behind after minor version upgrade

Good morning,

I recently updated minor version from 7.3.1 to 7.3.2 and found that my 2 busiest indexes (index rate 7K e/s) are falling behind by 10 to 20 minutes. They were up to date before the upgrade and I was happily indexing more than 25000 e/s at times.

Data / Ingest Nodes: X6
4 vCPU, 30GB Memory, 20GB assigned to JVM and host attached storage.

I am also seeing frequent GC at times:

{"type": "server", "timestamp": "2019-10-22T07:47:36,422+0000", "level": "INFO", "component": "o.e.m.j.JvmGcMonitorService", "": "Name", "": "Node", "cluster.uuid": "ID", "": "Id", "message": "[gc][1101913] overhead, spent [265ms] collecting in the last [1s]" }

I checked the hot thread output but do not understand all of it. The output is almost 1000 lines long so I placed it in a git repo.

If you need more info please let me know any assistance would be really appreciated at this point.

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