cassandra - 在 Cassandra 中设置节点间加密

Question

我是 Cassandra 的新手，希望在 Cassandra 1.2.8 中设置节点间加密。

我已经按照此处列出的步骤成功地为 keystore 和信任库创建了一个 key 对: http://docs.oracle.com/javase/6/docs/technotes/guides/security/jsse/JSSERefGuide.html#CreateKeystore

在 Cassandra.yaml 文件中，我已将服务器加密选项调整为以下内容:

server_encryption_options:
    internode_encryption: all
    keystore: conf/keystore
    keystore_password: password
    truststore: conf/truststore
    truststore_password: password

但是，当我启动 Cassandra 服务器时，我收到以下错误:

ERROR 18:49:20,883 Fatal configuration error
org.apache.cassandra.exceptions.ConfigurationException: Unable to create ssl socket
        at org.apache.cassandra.net.MessagingService.getServerSocket(MessagingService.java:410)
        at org.apache.cassandra.net.MessagingService.listen(MessagingService.java:390)
        at org.apache.cassandra.service.StorageService.joinTokenRing(StorageService.java:589)
        at org.apache.cassandra.service.StorageService.initServer(StorageService.java:554)
        at org.apache.cassandra.service.StorageService.initServer(StorageService.java:451)
        at org.apache.cassandra.service.CassandraDaemon.setup(CassandraDaemon.java:348)
        at org.apache.cassandra.service.CassandraDaemon.activate(CassandraDaemon.java:447)
        at org.apache.cassandra.service.CassandraDaemon.main(CassandraDaemon.java:490)
Caused by: java.io.IOException: Error creating the initializing the SSL Context
        at org.apache.cassandra.security.SSLFactory.createSSLContext(SSLFactory.java:124)
        at org.apache.cassandra.security.SSLFactory.getServerSocket(SSLFactory.java:53)
        at org.apache.cassandra.net.MessagingService.getServerSocket(MessagingService.java:406)
        ... 7 more
Caused by: java.io.FileNotFoundException: conf\truststore\dev (The system cannot find the path specified)
        at java.io.FileInputStream.open(Native Method)
        at java.io.FileInputStream.<init>(Unknown Source)
        at java.io.FileInputStream.<init>(Unknown Source)
        at org.apache.cassandra.security.SSLFactory.createSSLContext(SSLFactory.java:105)
        ... 9 more
Unable to create ssl socket
Fatal configuration error; unable to start server.  See log for stacktrace.
ERROR 18:49:20,887 Exception in thread Thread[StorageServiceShutdownHook,5,main]
java.lang.NullPointerException
        at org.apache.cassandra.service.StorageService.stopRPCServer(StorageService.java:321)
        at org.apache.cassandra.service.StorageService.shutdownClientServers(StorageService.java:370)
        at org.apache.cassandra.service.StorageService.access$000(StorageService.java:88)
        at org.apache.cassandra.service.StorageService$1.runMayThrow(StorageService.java:519)
        at org.apache.cassandra.utils.WrappedRunnable.run(WrappedRunnable.java:28)
        at java.lang.Thread.run(Unknown Source)

请注意，如果服务器加密选项设置回无，服务器运行不会出现问题。任何想法/指导将不胜感激。

Answer 1

仔细阅读异常:

Caused by: java.io.FileNotFoundException: conf\truststore\dev
(The system cannot find the path specified)

您已经创建了 key /信任库，但还没有将 cassandra 指向它们。在 cassandra.yaml 中，您需要启用 SSL，但您还需要指定这两个文件的路径。例如:

server_encryption_options:
    internode_encryption: all
    keystore: C:\some\location
    keystore_password: password
    truststore: C:\some\other\location
    truststore_password: password

还请记住提供 key /信任库密码，而不是 cassandra.yaml 中的示例。