【发布时间】：2016-03-02 08:19:22
【问题描述】：
cassandra 不适用于我的虚拟机。
cqlsh
Connection error: ('Unable to connect to any servers', {'127.0.0.1': error(111, "Tried connecting to [('127.0.0.1', 9042)]. Last error: Connection refused")})
当我使用命令时：
cassandra
......
INFO 07:55:31 Enqueuing flush of local: 578 (0%) on-heap, 0 (0%) off-heap
INFO 07:55:31 Writing Memtable-local@2014850649(0.081KiB serialized bytes, 4 ops, 0%/0% of on/off-heap limit)
INFO 07:55:31 Completed flushing /var/lib/cassandra/data/system/local-7ad54392bcdd35a684174e047860b377/tmp-la-305-big-Data.db (0.000KiB) for commitlog position ReplayPosition(segmentId=1448697324414, position=105487)
INFO 07:55:31 Enqueuing flush of local: 51468 (0%) on-heap, 0 (0%) off-heap
INFO 07:55:31 Writing Memtable-local@280469114(8.354KiB serialized bytes, 259 ops, 0%/0% of on/off-heap limit)
INFO 07:55:31 Completed flushing /var/lib/cassandra/data/system/local-7ad54392bcdd35a684174e047860b377/tmp-la-306-big-Data.db (0.000KiB) for commitlog position ReplayPosition(segmentId=1448697324414, position=117466)
INFO 07:55:32 Node localhost/127.0.0.1 state jump to normal
INFO 07:55:32 Compacted (64dd8610-95a5-11e5-af1d-a752adc4283f) 4 sstables to [/var/lib/cassandra/data/system/compaction_history-b4dbb7b4dc493fb5b3bfce6e434832ca/la-91-big,] to level=0. 20,658 bytes to 20,029 (~96% of original) in 2,376ms = 0.008039MB/s. 0 total partitions merged to 225. Partition merge counts were {1:225, }
那么cqlsh就可以工作了：
cqlsh
Connected to Test Cluster at 127.0.0.1:9042.
[cqlsh 5.0.1 | Cassandra 2.2.1 | CQL spec 3.3.0 | Native protocol v4]
Use HELP for help.
cqlsh>
但几分钟后，cqlsh 已关闭：
cqlsh
Connection error: ('Unable to connect to any servers', {'127.0.0.1': error(111, "Tried connecting to [('127.0.0.1', 9042)]. Last error: Connection refused")})
任何人都可以帮助我！提前致谢！
【问题讨论】：
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服务器上的日志文件可能会告诉您您需要了解的内容。
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@Raedwald 在日志文件中没有发现错误