aarch64平台安装运行cassandra 2.2

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cassandra 2.2在arm64平台上安装运行的一些问题

增加JVM线程栈大小

编辑配置文件/etc/cassandra/conf/cassandra-env.sh

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# Per-thread stack size
JVM_OPTS="$JVM_OPTS -Xss512k"

Xss参数设置为512k
如果该参数设置过小，cassandra会拒绝启动，日志文件/var/log/cassandra/cassandra.log中会有错误信息：

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The stack size specified is too small, Specify at least 456k
Error: Could not create the Java Virtual Machine.
Error: A fatal exception has occurred. Program will exit.

替换JNA库/模块

cassandra 2.2自带的JNA为4.0.0版本，不支持aarch64架构
下载当前最新版本JNA 5.17.0，并进行替换

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$ wget https://repo1.maven.org/maven2/net/java/dev/jna/jna/5.17.0/jna-5.17.0.jar
$ sudo rm /usr/share/cassandra/lib/jna-4.0.0.jar
$ sudo cp jna-5.17.0.jar /usr/share/cassandra/lib/

修改cassandra服务sysv rc脚本

cassandra自动的服务脚本为sysv rc风格的，systemd可以兼容，但需要修改pid文件的路径

编辑脚本文件/etc/rc.d/init.d/cassandra，做如下修改：

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pid_file=/run/cassandra/cassandra.pid

也就是pid_file从/var/run目录修改为/run目录下，因为systemd现在默认使用/run目录来存储pid文件

如果不修改，会有以下错误：

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cassandra.service: New main PID 1221568 does not exist or is a zombie.
cassandra.service: Failed with result 'protocol'.
Failed to start LSB: distributed storage system for structured data.
/run/systemd/generator.late/cassandra.service:27: PIDFile= references a path below legacy directory /var/run/, updating /var/run/cassandracassandra.pid → /run/cassandra/cassandra.pid; please update the unit file accordingly.

启用cassandra服务

安装完成默认是没有启用服务的

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$ sudo systemctl is-enabled cassandra.service
cassandra.service is not a native service, redirecting to systemd-sysv-install.
Executing: /usr/lib/systemd/systemd-sysv-install is-enabled cassandra
disabled

启用服务

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$ sudo systemctl enable cassandra.service
cassandra.service is not a native service, redirecting to systemd-sysv-install.
Executing: /usr/lib/systemd/systemd-sysv-install enable cassandra

启动服务

正常启动服务就可以了

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$ sudo systemctl start cassandra.service

References:

[1]Cassandra 3.10 Could not initialize class com.sun.jna.Native

[2]Cassandra failed to run on Linux-aarch64