无法启动Cassandra(CentOS7上的单节点群集) [英] Can't start Cassandra (Single-Node Cluster on CentOS7)
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问题描述
我想用一个非常简单的单节点集群来启动Cassandra, 但我做不到.
I would like to start Cassandra with a very simple single-node cluster, but I can't do it.
我遵循了
基本上
- 在VirtualBox上构建新的CentOS 7虚拟机.
- 安装了JDK,将其放在/usr/local/下,并创建了路径.
- 安装Apache Cassandra,将其放在/root/下,为lib和日志制作目录,并为Cassandra授予写权限.
最后,当我以root用户身份跑到下面时,
At the end, when I ran below as root user,
# sh ~/cassandra/bin/cassandra
出现以下消息.
Running Cassandra as root user or group is not recommended - please start Cassandra using a different system user.
If you really want to force running Cassandra as root, use -R command line option.
所以,我跑了
# sh ~/cassandra/bin/cassandra -R
然后,我在下面收到了消息.
Then, I got the message below.
# [0.000s][warning][gc] -Xloggc is deprecated. Will use -Xlog:gc:/root/cassandra/bin/../logs/gc.log instead.
intx ThreadPriorityPolicy=42 is outside the allowed range [ 0 ... 1 ]
Improperly specified VM option 'ThreadPriorityPolicy=42'
Error: Could not create the Java Virtual Machine.
Error: A fatal exception has occurred. Program will exit.
问题似乎与JVM有关, 但是我对它的原因和解决方案一无所知.
It seems the issue is related to JVM, but I have no clue regarding its cause and solution.
如果您有解决此问题的想法,请告诉我.
Please let me know if you have ideas of how to solve this issue.
我的环境如下:
- Windows 10
- VirtualBox 5.1.28
- CentOS-7-x86_64-Minimal-1611
- jdk-9.0.1
- apache-cassandra-3.11.1
推荐答案
正如undefined_variable所注释的那样,Java 8(而不是9)工作得很好.谢谢大家的帮助.
As undefined_variable commented, Java 8, instead of 9, worked just fine. Thanks everyone for trying to help.
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