当我尝试修复键空间时遇到一个问题：
myuser@host-1:~$ nodetool repair -pr mykeyspace
[2014-11-07 13:33:10,132] Starting repair command #13, repairing 1 ranges for keyspace mykeyspace
[2014-11-07 13:33:20,668] Repair session 3baeeb40-667a-11e4-a6e9-3562b4c30e9e for range (-3651079129967449,-2] failed with error java.io.IOException: Failed during snapshot creation.
[2014-11-07 13:33:20,668] Repair command #13 finished
当我查看system.log它时host-1，它说：
ERROR [RepairJobTask:1] 2014-11-07 13:33:20,665 RepairJob.java (line 125) Error occurred during snapshot phase
java.lang.RuntimeException: Could not create snapshot at /X.X.X.33
at org.apache.cassandra.repair.SnapshotTask$SnapshotCallback.onFailure(SnapshotTask.java:81)
at org.apache.cassandra.net.MessagingService$5$1.run(MessagingService.java:344)
at java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:471)
at java.util.concurrent.FutureTask.run(FutureTask.java:262)
at java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1145)
at java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:615)
at java.lang.Thread.run(Thread.java:745)
ERROR [AntiEntropySessions:12] 2014-11-07 13:33:20,666 RepairSession.java (line 288) [repair #3baeeb40-667a-11e4-a6e9-3562b4c30e9e] session completed with the following error
java.io.IOException: Failed during snapshot creation.
at org.apache.cassandra.repair.RepairSession.failedSnapshot(RepairSession.java:323)
at org.apache.cassandra.repair.RepairJob$2.onFailure(RepairJob.java:126)
at com.google.common.util.concurrent.Futures$4.run(Futures.java:1160)
at java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1145)
at java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:615)
at java.lang.Thread.run(Thread.java:745)
ERROR [AntiEntropySessions:12] 2014-11-07 13:33:20,667 CassandraDaemon.java (line 199) Exception in thread Thread[AntiEntropySessions:12,5,RMI Runtime]
java.lang.RuntimeException: java.io.IOException: Failed during snapshot creation.
at com.google.common.base.Throwables.propagate(Throwables.java:160)
at org.apache.cassandra.utils.WrappedRunnable.run(WrappedRunnable.java:32)
at java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:471)
at java.util.concurrent.FutureTask.run(FutureTask.java:262)
at java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1145)
at java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:615)
at java.lang.Thread.run(Thread.java:745)
Caused by: java.io.IOException: Failed during snapshot creation.
at org.apache.cassandra.repair.RepairSession.failedSnapshot(RepairSession.java:323)
at org.apache.cassandra.repair.RepairJob$2.onFailure(RepairJob.java:126)
at com.google.common.util.concurrent.Futures$4.run(Futures.java:1160)
... 3 more
ERROR [Thread-1607] 2014-11-07 13:33:20,668 StorageService.java (line 2599) Repair session 3baeeb40-667a-11e4-a6e9-3562b4c30e9e for range (-3651079129967449,-2] failed with error java.io.IOException: Failed during snapshot creation.
java.util.concurrent.ExecutionException: java.lang.RuntimeException: java.io.IOException: Failed during snapshot creation.
at java.util.concurrent.FutureTask.report(FutureTask.java:122)
at java.util.concurrent.FutureTask.get(FutureTask.java:188)
at org.apache.cassandra.service.StorageService$4.runMayThrow(StorageService.java:2591)
at org.apache.cassandra.utils.WrappedRunnable.run(WrappedRunnable.java:28)
at java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:471)
at java.util.concurrent.FutureTask.run(FutureTask.java:262)
at java.lang.Thread.run(Thread.java:745)
Caused by: java.lang.RuntimeException: java.io.IOException: Failed during snapshot creation.
at com.google.common.base.Throwables.propagate(Throwables.java:160)
at org.apache.cassandra.utils.WrappedRunnable.run(WrappedRunnable.java:32)
at java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:471)
at java.util.concurrent.FutureTask.run(FutureTask.java:262)
at java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1145)
at java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:615)
... 1 more
Caused by: java.io.IOException: Failed during snapshot creation.
at org.apache.cassandra.repair.RepairSession.failedSnapshot(RepairSession.java:323)
at org.apache.cassandra.repair.RepairJob$2.onFailure(RepairJob.java:126)
at com.google.common.util.concurrent.Futures$4.run(Futures.java:1160)
... 3 more
当我查看日志时，X.X.X.33我没有看到任何日志错误。
谁能给我指明正确的方向？
答案1
nodetool snapshot mykeyspace已修复。我发布了手册X.X.X.33并设法在日志中找到了更好的错误。结果发现我丢失了一个数据文件，可能是因为删除表并创建它的速度比该架构更改在整个集群中传播的速度更快。重新启动 Cassandra 节点（以便它发现文件丢失）并截断了表。