Exception in thread "main" java.lang.NoSuchMethodError: scala.Predef$.intWrapper(I)Lscala/runtime/Ri
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今天做kafka性能测试报了一个如下错误:
[lizhitao@mobile-mq09 kafka_2.10-0.8.1]$ bin/kafka-producer-perf-test.sh --messages 5000000 --message-size 5000 --batch-size 5000 --topics test-rep-one --threads 8 --broker-list mobile-esb03:9092,mobile-esb04:9092,mobile-esb05:9092
start.time, end.time, compression, message.size, batch.size, total.data.sent.in.MB, MB.sec, total.data.sent.in.nMsg, nMsg.sec
Exception in thread "main" java.lang.NoSuchMethodError: scala.Predef$.intWrapper(I)Lscala/runtime/RichInt;
at kafka.perf.ProducerPerformance$.main(ProducerPerformance.scala:56)
at kafka.perf.ProducerPerformance.main(ProducerPerformance.scala)
经过分析后,发现是kafka_2.x-0.8.1.x.jar与kafka-perf_2.x-0.8.1.x编译版本没有一一对应,因为scala发展比较快,而且高版本编译器不完全兼容低版本。所以2个jar要用同一个版本scala来编译。
不同版本编译如下:
图1:
图2:相同版本编译
运行结果:
- Exception in thread "main" java.lang.NoSuchMethodError: scala.Predef$.intWrapper(I)Lscala/runtime/Ri
- Exception in thread "main" java.lang.NoSuchMethodError: scala.Predef$.$conforms()Lscala/Predef$$less
- Exception in thread "main" java.lang.NoSuchMethodError: scala.Predef$.ArrowAssoc(Ljava/lang/Object;)
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