对于线程池如果优化？怎么提高查询并发量？

{
"_nodes": {
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"failed": 0
},
"cluster_name": "motoband5.4",
"nodes": {
"jsd1Mb1STbmj9UVUXMJeAQ": {
"name": "es5.4-1",
"transport_address": "10.163.43.123:9303",
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"roles": [
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],
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},
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},
"listener": {
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},
"index": {
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},
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},
"generic": {
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},
"warmer": {
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"queue_size": -1
},
"search": {
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},
"flush": {
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},
"fetch_shard_store": {
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},
"management": {
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},
"get": {
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},
"bulk": {
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},
"snapshot": {
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}
}
}
}
}