python脚本报错问题解决: tSocket read 0 Bytes

任务调度执行在python脚本时经常会报错,错误日志中报错信息是 tSocket read 0 Bytes

之前在网上查了好多结果都不能解决,包括StackOverFlow上搜索也没有能解决的

只好脚本中不断写打印语句,判断是在哪里出了问题,最后定位是在读文件的地方,如图

    files = open('/home/ooxx/script/b_cb_tableinfo.txt', 'r');
    for i in files.readlines():
        if dacp_name in i :
            params = i.split(' ');
            break;
    #关闭文件,不再出现报错问题
    files.close()

其实只需在读文件后关闭就可以解决了,实属低级错误==!

这个脚本每天在固定时间段内被多个调度程序执行,不可避免的会出现并发现象,很有必要在使用后及时关闭

相关搜索,可以百度:Python File close()

beeline> !connect jdbc:hive2://node1:10000 Connecting to jdbc:hive2://node1:10000 Enter username for jdbc:hive2://node1:10000: hadoop Enter password for jdbc:hive2://node1:10000: 25/07/20 16:07:35 [main]: ERROR jdbc.HiveConnection: Error opening session org.apache.thrift.transport.TTransportException: null at org.apache.thrift.transport.TIOStreamTransport.read(TIOStreamTransport.java:132) ~[hive-exec-3.1.3.jar:3.1.3] at org.apache.thrift.transport.TTransport.readAll(TTransport.java:86) ~[hive-exec-3.1.3.jar:3.1.3] at org.apache.thrift.transport.TSaslTransport.readLength(TSaslTransport.java:376) ~[hive-exec-3.1.3.jar:3.1.3] at org.apache.thrift.transport.TSaslTransport.readFrame(TSaslTransport.java:453) ~[hive-exec-3.1.3.jar:3.1.3] at org.apache.thrift.transport.TSaslTransport.read(TSaslTransport.java:435) ~[hive-exec-3.1.3.jar:3.1.3] at org.apache.thrift.transport.TSaslClientTransport.read(TSaslClientTransport.java:37) ~[hive-exec-3.1.3.jar:3.1.3] at org.apache.thrift.transport.TTransport.readAll(TTransport.java:86) ~[hive-exec-3.1.3.jar:3.1.3] at org.apache.thrift.protocol.TBinaryProtocol.readAll(TBinaryProtocol.java:429) ~[hive-exec-3.1.3.jar:3.1.3] at org.apache.thrift.protocol.TBinaryProtocol.readI32(TBinaryProtocol.java:318) ~[hive-exec-3.1.3.jar:3.1.3] at org.apache.thrift.protocol.TBinaryProtocol.readMessageBegin(TBinaryProtocol.java:219) ~[hive-exec-3.1.3.jar:3.1.3] at org.apache.thrift.TServiceClient.receiveBase(TServiceClient.java:77) ~[hive-exec-3.1.3.jar:3.1.3] at org.apache.hive.service.rpc.thrift.TCLIService$Client.recv_OpenSession(TCLIService.java:176) ~[hive-exec-3.1.3.jar:3.1.3] at org.apache.hive.service.rpc.thrift.TCLIService$Client.OpenSession(TCLIService.java:163) ~[hive-exec-3.1.3.jar:3.1.3] at org.apache.hive.jdbc.HiveConnection.openSession(HiveConnection.java:728) [hive-jdbc-3.1.3.jar:3.1.3] at org.apache.hive.jdbc.HiveConnection.<init>(HiveConnection.java:232) [hive-jdbc-3.1.3.jar:3.1.3] at org.apache.hive.jdbc.HiveDriver.connect(HiveDriver.java:107) [hive-jdbc-3.1.3.jar:3.1.3] at java.sql.DriverManager.getConnection(DriverManager.java:664) [?:1.8.0_361] at java.sql.DriverManager.getConnection(DriverManager.java:208) [?:1.8.0_361] at org.apache.hive.beeline.DatabaseConnection.connect(DatabaseConnection.java:145) [hive-beeline-3.1.3.jar:3.1.3] at org.apache.hive.beeline.DatabaseConnection.getConnection(DatabaseConnection.java:209) [hive-beeline-3.1.3.jar:3.1.3] at org.apache.hive.beeline.Commands.connect(Commands.java:1641) [hive-beeline-3.1.3.jar:3.1.3] at org.apache.hive.beeline.Commands.connect(Commands.java:1536) [hive-beeline-3.1.3.jar:3.1.3] at sun.reflect.NativeMethodAccessorImpl.invoke0(Native Method) ~[?:1.8.0_361] at sun.reflect.NativeMethodAccessorImpl.invoke(NativeMethodAccessorImpl.java:62) ~[?:1.8.0_361] at sun.reflect.DelegatingMethodAccessorImpl.invoke(DelegatingMethodAccessorImpl.java:43) ~[?:1.8.0_361] at java.lang.reflect.Method.invoke(Method.java:498) ~[?:1.8.0_361] at org.apache.hive.beeline.ReflectiveCommandHandler.execute(ReflectiveCommandHandler.java:56) [hive-beeline-3.1.3.jar:3.1.3] at org.apache.hive.beeline.BeeLine.execCommandWithPrefix(BeeLine.java:1384) [hive-beeline-3.1.3.jar:3.1.3] at org.apache.hive.beeline.BeeLine.dispatch(BeeLine.java:1423) [hive-beeline-3.1.3.jar:3.1.3] at org.apache.hive.beeline.BeeLine.execute(BeeLine.java:1287) [hive-beeline-3.1.3.jar:3.1.3] at org.apache.hive.beeline.BeeLine.begin(BeeLine.java:1071) [hive-beeline-3.1.3.jar:3.1.3] at org.apache.hive.beeline.BeeLine.mainWithInputRedirection(BeeLine.java:538) [hive-beeline-3.1.3.jar:3.1.3] at org.apache.hive.beeline.BeeLine.main(BeeLine.java:520) [hive-beeline-3.1.3.jar:3.1.3] at sun.reflect.NativeMethodAccessorImpl.invoke0(Native Method) ~[?:1.8.0_361] at sun.reflect.NativeMethodAccessorImpl.invoke(NativeMethodAccessorImpl.java:62) ~[?:1.8.0_361] at sun.reflect.DelegatingMethodAccessorImpl.invoke(DelegatingMethodAccessorImpl.java:43) ~[?:1.8.0_361] at java.lang.reflect.Method.invoke(Method.java:498) ~[?:1.8.0_361] at org.apache.hadoop.util.RunJar.run(RunJar.java:330) [hadoop-common-3.4.0.jar:?] at org.apache.hadoop.util.RunJar.main(RunJar.java:245) [hadoop-common-3.4.0.jar:?] 25/07/20 16:07:35 [main]: WARN jdbc.HiveConnection: Failed to connect to node1:10000 Error: Could not open client transport with JDBC Uri: jdbc:hive2://node1:10000: Could not establish connection to jdbc:hive2://node1:10000: null (state=08S01,code=0) beeline> 这个怎么解决
最新发布
07-21
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