异常或错误导致运行中止：无法启动 EmbeddedCassandra[name='cassandra-2', version='3.11.6']

Question

我在单元测试 (Scalatest) 中使用 embedded-cassandra。当我尝试运行所有测试用例作为批处理时，出现错误

An exception or error caused a run to abort: Unable to start EmbeddedCassandra[name='cassandra-2', version='3.11.6']
...
Caused by: java.io.IOException: 'WindowsCassandraNode[pid='-1', exitValue='0']' is not alive. Please see logs for more details
    Java HotSpot(TM) 64-Bit Server VM warning: Cannot open file C:\Users\manuc\AppData\Local\Temp\apache-cassandra-3.11.6-5333812070060739596/logs/gc.log due to No such file or directory
...
ava.net.BindException: Address already in use: JVM_Bind
        java.net.BindException: Address already in use: JVM_Bind
    ERROR [main] 2020-09-17 06:27:11,872 CassandraDaemon.java:774 - Port already in use: 7199; nested exception is:

我可能做错了什么？正如跟踪所说 cassandra-2，Cassandra 的另一个实例似乎已经运行ning？难道测试是同时进行的运行ning 吗？运行在Intellij/Scalatest中串行测试的方法是什么？

这个答案提到 Scalatest 会运行并行执行，这可能会导致端口冲突问题。有没有办法避免 embedded-cassandra 或运行系列中的端口冲突？ - How to run tests in a class sequentially in ScalaTest?

Answer 1

您可以尝试使用随机端口来解决您的问题：

EmbeddedCassandraFactory cassandraFactory = new EmbeddedCassandraFactory();
cassandraFactory.setPort(0);
cassandraFactory.setSslPort(0); // if SSL client options enabled
cassandraFactory.setRpcPort(0);
cassandraFactory.setJmxLocalPort(0);
cassandraFactory.setStoragePort(0);
cassandraFactory.setSslStoragePort(0); // // if SSL server options enabled

异常或错误导致运行中止：无法启动 EmbeddedCassandra[name='cassandra-2', version='3.11.6']

An exception or error caused a run to abort: Unable to start EmbeddedCassandra[name='cassandra-2', version='3.11.6']

scalatest

cassandra-3.0

embedded-cassandra

异常或错误导致 运行 中止：无法启动 EmbeddedCassandra[name='cassandra-2', version='3.11.6']

An exception or error caused a run to abort: Unable to start EmbeddedCassandra[name='cassandra-2', version='3.11.6']

scalatest

cassandra-3.0

embedded-cassandra

异常或错误导致运行中止：无法启动 EmbeddedCassandra[name='cassandra-2', version='3.11.6']