我正在尝试启动cassandra，所以我做到了
sudo ./cassandra
我遇到过这个
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problem on starting cassandra链接上提到的内容，我更改了/ etc / hosts文件。
然后启动过程被卡住了：
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
此后没有执行其他行。任何人都可以帮忙告诉我为什么会发生这种情况。
答案 0 :(得分：1)
我想在这句话之后
INFO 22:27:14,493 Node localhost/127.0.0.1 state jump to normal
您的服务器正常运行，验证执行jps并检查CassandraDaemon是否正在运行。
答案 1 :(得分：1)
我得到同样的错误..
你只需要在命令提示符下执行命令
hostname localhost（或运行cassandra的主机名）
相信它会解决你的问题