无法启动cassandra

Question

我正在尝试启动cassandra，所以我做了sudo ./cassandra

我遇到此Error: Exception thrown by the agent : java.net.MalformedURLException: Local host name unknown: java.net.UnknownHostException: node24.nise.local: node24.nise.local

所以我做了在启动cassandra链接时遇到的问题 ，我更改了/ etc / hosts文件。

然后，启动过程在此之后陷入了困境：

INFO 22:27:14,227 CFS(Keyspace='system', ColumnFamily='local') liveRatio is 33.904761904761905 (just-counted was 33.904761904761905).  calculation took 110ms for 3 cells

 INFO 22:27:14,260 Enqueuing flush of Memtable-local@726006040(84/840 serialized/live bytes, 4 ops)

 INFO 22:27:14,262 Writing Memtable-local@726006040(84/2848 serialized/live bytes, 4 ops)

 INFO 22:27:14,280 Completed flushing /var/lib/cassandra/data/system/local/system-local-jb-50-Data.db (116 bytes) for commitlog position ReplayPosition(segmentId=1401859631027, position=500327)

 WARN 22:27:14,327 setting live ratio to maximum of 64.0 instead of Infinity

 INFO 22:27:14,327 Enqueuing flush of Memtable-local@1689909512(10100/101000 serialized/live bytes, 259 ops)

 INFO 22:27:14,328 CFS(Keyspace='system', ColumnFamily='local') liveRatio is 64.0 (just-counted was 64.0).  calculation took 0ms for 0 cells

 INFO 22:27:14,350 Writing Memtable-local@1689909512(10100/101000 serialized/live bytes, 259 ops)

 INFO 22:27:14,386 Completed flushing /var/lib/cassandra/data/system/local/system-local-jb-51-Data.db (5278 bytes) for commitlog position ReplayPosition(segmentId=1401859631027, position=512328)

 INFO 22:27:14,493 Node localhost/127.0.0.1 state jump to normal

之后没有其他行被执行。 任何人都可以帮助让我知道为什么会这样。

Answer 1

我认为这句话之后

INFO 22:27:14,493 Node localhost/127.0.0.1 state jump to normal

您的服务器正常运行，以验证是否执行jps并检查CassandraDaemon是否正在运行。

Answer 2

我遇到了同样的错误..

你只需要在命令提示符下给命令

主机名localhost（或cassandra运行所在的主机名）

相信这会解决您的问题