Several times of large gc, then will be disconnected, this is why?

Elastic Stack Elasticsearch
1

logs as follows:
[2019-01-17T23:08:19,097][INFO ][o.e.m.j.JvmGcMonitorService] [node-142] [gc][101523] overhead, spent [322ms] collecting in the last [1s]
[2019-01-17T23:08:26,107][INFO ][o.e.m.j.JvmGcMonitorService] [node-142] [gc][101530] overhead, spent [370ms] collecting in the last [1s]
[2019-01-17T23:08:34,109][INFO ][o.e.m.j.JvmGcMonitorService] [node-142] [gc][101538] overhead, spent [259ms] collecting in the last [1s]
[2019-01-17T23:10:15,126][INFO ][o.e.d.z.ZenDiscovery ] [node-142] master_left [{node-141}{3kWs-rFaR_yZVZOpRp1BFA}{nFj2LpDWS6qNIeEUKzpBLA}{192.168.30.141}{192.168.30.141:2810}], reason [failed to ping, tried [3] times, each with maximum [1m] timeout]
[2019-01-17T23:10:15,127][WARN ][o.e.d.z.ZenDiscovery ] [node-142] master left (reason = failed to ping, tried [3] times, each with maximum [1m] timeout), current nodes: nodes:
{node-143}{gIvN8KNiQsmY2Lsy20Expg}{TUXpFaUnRTKAa5Asdf19gA}{192.168.30.143}{192.168.30.143:2810}
{node-141}{3kWs-rFaR_yZVZOpRp1BFA}{nFj2LpDWS6qNIeEUKzpBLA}{192.168.30.141}{192.168.30.141:2810}, master
{node-142}{aYMFcfn3RvKDVfgncxC8cQ}{yodrtCrKSaWcVI49NE9dCg}{192.168.30.142}{192.168.30.142:2810}, local

several times of disconnection likes that, before disconnection there will be some gc logs(3-5 times).

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