題記の通りです。 fluent-plugin-elasticsearch 1.9.3からElasticsearch 5.3に書き込んでから下記のようなエラーがたまに出てるのに気付きました。 Could not push log to Elasticsearch: {...{"index"=>{"_index"=>"hoge-2017.03.31", "_type"=>"fluentd", "_id"=>"...", "status"=>429, "error"=>{"type"=>"es_rejected_execution_exception", "reason"=>"rejected execution of org.elasticsearch.transport.TransportService$7@1aa442ab on EsThreadPoolExecutor[bulk, que
![es_rejected_execution_exceptionが出たのでthread_pool.bulk.queue_sizeを増やした - wyukawa's diary](https://cdn-ak-scissors.b.st-hatena.com/image/square/c4e79ef1ebf6428d2577425de8c017c3c27dc5aa/height=288;version=1;width=512/https%3A%2F%2Fimages-fe.ssl-images-amazon.com%2Fimages%2FI%2F41qvuYsFPBL._SL160_.jpg)