我有两个节点Cassandra（3.10）集群。我正在尝试将Mysql数据迁移到Cassandra。一切都运行正常，但现在转移1.5 TB数据后，我尝试登录集群 -
cqlsh 192.168.22.231
我收到以下错误：
Connection error: ('Unable to connect to any servers', {'192.168.22.229': ReadFailure('Error from server: code=1300 [Replica(s) failed to execute read] message="Operation failed - received 0 responses and 1 failures" info={\'failures\': 1, \'received_responses\': 0, \'required_responses\': 1, \'consistency\': \'ONE\'}',)})
迁移仍在继续 Nodetool状态正常：
nodetool status
Datacenter: dc1
===============
Status=Up/Down
|/ State=Normal/Leaving/Joining/Moving
-- Address Load Tokens Owns (effective) Host ID Rack
UN 192.168.22.229 1.49 TiB 256 100.0% 335fc3a2-c21f-44ad-a937-487ba457c2fa rack1
UN 192.168.22.231 1.63 TiB 256 100.0% a5eaf96c-eaf9-4e2e-bd6b-6186ce944cd0 rack1
我在system.log文件中找不到多少 -
WARN [CompactionExecutor:1235] 2017-07-24 09:18:36,909 BigTableWriter.java:211 - Writing large partition system/size_estimates:compare_prices (148.685MiB) to sstable /var/lib/cassandra/data/system/size_estimates-618f817b005f3678b8a453f3930b8e86/mc-86529-big-Data.db
WARN [CompactionExecutor:1237] 2017-07-24 09:18:41,057 BigTableWriter.java:211 - Writing large partition system/size_estimates:compare_prices (304.941MiB) to sstable /var/lib/cassandra/data/system/size_estimates-618f817b005f3678b8a453f3930b8e86/mc-86524-big-Data.db
INFO [Service Thread] 2017-07-24 09:19:13,717 GCInspector.java:284 - ConcurrentMarkSweep GC in 288ms. CMS Old Gen: 6914586928 -> 7048104592; Par Eden Space: 912792 -> 279263336; Par Survivor Space: 39217480 -> 22677312
WARN [CompactionExecutor:1235] 2017-07-24 09:19:21,054 BigTableWriter.java:211 - Writing large partition system/size_estimates:compare_prices (304.983MiB) to sstable /var/lib/cassandra/data/system/size_estimates-618f817b005f3678b8a453f3930b8e86/mc-86532-big-Data.db
INFO [GossipTasks:1] 2017-07-24 09:19:39,143 Gossiper.java:1035 - InetAddress /192.168.22.229 is now DOWN
INFO [HANDSHAKE-/192.168.22.229] 2017-07-24 09:19:40,144 OutboundTcpConnection.java:510 - Handshaking version with /192.168.22.229
INFO [RequestResponseStage-1] 2017-07-24 09:19:40,707 Gossiper.java:1020 - InetAddress /192.168.22.229 is now UP
INFO [RequestResponseStage-2] 2017-07-24 09:19:40,707 Gossiper.java:1020 - InetAddress /192.168.22.229 is now UP
INFO [RequestResponseStage-3] 2017-07-24 09:19:40,708 Gossiper.java:1020 - InetAddress /192.168.22.229 is now UP
INFO [HANDSHAKE-/192.168.22.229] 2017-07-24 09:19:40,713 OutboundTcpConnection.java:510 - Handshaking version with /192.168.22.229
INFO [Service Thread] 2017-07-24 09:19:56,535 GCInspector.java:284 - ConcurrentMarkSweep GC in 368ms. CMS Old Gen: 6912138512 -> 7064530672; Code Cache: 53907904 -> 53912512; Par Eden Space: 346891848 -> 410552160; Par Survivor Space: 22163952 -> 56682672
INFO [Service Thread] 2017-07-24 09:20:11,484 GCInspector.java:284 - ConcurrentMarkSweep GC in 290ms. CMS Old Gen: 7101380632 -> 7024862456; Par Eden Space: 1766944 -> 325018648; Par Survivor Space: 74151808 -> 45360640
INFO [Service Thread] 2017-07-24 09:20:27,528 GCInspector.java:284 - ConcurrentMarkSweep GC in 286ms. CMS Old Gen: 7063164264 -> 6923704424; Par Eden Space: 4215840 -> 423685008; Par Survivor Space: 51589440 -> 42734824
任何纠正这个问题的想法都会很明显。
答案 0 :(得分：1)
在本地运行cqlsh有效吗？
确保防火墙中已打开端口9042。
此外，您可以尝试运行：
cqlsh --connect-timeout = 60 --request-timeout = 60