thrift out of memory

本文讨论了在使用 Java IO 实现时遇到的问题,导致无法通过 telnet 连接到 thrift 服务的端口。主要原因是 Java IO 实现存在 bug,不支持 telnet 功能。

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不能telnet thrift 服务的端口,因为java io 实现 有 bug,不支持 telnet 
hive> select '2025-07-04' dt, count(*) user_churn_count > from dws_user_user_login_td > where dt = '2025-07-04' > and login_last_date <= date_sub('2025-07-04', 6); 40542 [0d7b2f63-06b7-4d2b-835b-fc4e5bf848ea main] WARN org.apache.hadoop.hive.ql.session.SessionState - METASTORE_FILTER_HOOK will be ignored, since hive.security.authorization.manager is set to instance of HiveAuthorizerFactory. %40544 [0d7b2f63-06b7-4d2b-835b-fc4e5bf848ea main] WARN org.apache.hadoop.hive.metastore.ObjectStore - datanucleus.autoStartMechanismMode is set to unsupported value null . Setting it to value: ignored %40556 [0d7b2f63-06b7-4d2b-835b-fc4e5bf848ea main] WARN org.apache.hadoop.hive.metastore.ObjectStore - datanucleus.autoStartMechanismMode is set to unsupported value null . Setting it to value: ignored %42406 [0d7b2f63-06b7-4d2b-835b-fc4e5bf848ea main] WARN org.apache.hadoop.hive.ql.Driver - Hive-on-MR is deprecated in Hive 2 and may not be available in the future versions. Consider using a different execution engine (i.e. spark, tez) or using Hive 1.X releases. %Query ID = root_20250709153825_051fb62b-b7e5-4c17-a94f-874bdf465b83 Total jobs = 1 Launching Job 1 out of 1 Number of reduce tasks determined at compile time: 1 In order to change the average load for a reducer (in bytes): set hive.exec.reducers.bytes.per.reducer=<number> In order to limit the maximum number of reducers: set hive.exec.reducers.max=<number> In order to set a constant number of reducers: set mapreduce.job.reduces=<number>运行不结束
07-10
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