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问答 2021-01-26 来自：开发者社区

flink sql 大量数据时 jvm heap飙升，直至taskmanager挂掉

环境信息 flink version: 1.11jdk version: 1.8.0_231 业务逻辑使用flink sql注册mysql表，然后进行查询，通过toAppendStream转换为流写入到kudu，发现在flink sql查询期间，由于执行计划中包含cast转换，数据没能达到下一步，一直停止在查询部分，此时 jvm heap极具上升，直到taskmanager oom。

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更新时间 2024-03-24 09:50:08

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