我正在尝试在cloudera集群上使用hbase。hbase已启动并正在运行，没有出现错误，但是，当我尝试进入hbase shell并创建新表时：

create 'test', 'cf1'

我收到以下错误：

Table Namespace Manager not ready yet

cloudera manager不会发出有关hbase群集运行状况的问题的信号。无论如何，如果我在cloudera manager上查看hbase日志，我会发现很多错误，如以下所示：

Can't open after 24 attempts and 310225ms  for hdfs://hmaster:8020/hbase/WALs/slave8,60020,1416510428414-splitting/slave8%2C60020%2C1416510428414.1416510442205

或：

Caught throwable while processing event M_SERVER_SHUTDOWN
java.io.IOException: failed log splitting for slave8,60020,1416510428414, will retry
    at org.apache.hadoop.hbase.master.handler.ServerShutdownHandler.resubmit(ServerShutdownHandler.java:330)
    at org.apache.hadoop.hbase.master.handler.ServerShutdownHandler.process(ServerShutdownHandler.java:210)
    at org.apache.hadoop.hbase.executor.EventHandler.run(EventHandler.java:128)
    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: error or interrupted while splitting logs in [hdfs://hmaster:8020/hbase/WALs/slave8,60020,1416510428414-splitting] Task = installed = 1 done = 0 error = 1
    at org.apache.hadoop.hbase.master.SplitLogManager.splitLogDistributed(SplitLogManager.java:360)
    at org.apache.hadoop.hbase.master.MasterFileSystem.splitLog(MasterFileSystem.java:416)
    at org.apache.hadoop.hbase.master.MasterFileSystem.splitLog(MasterFileSystem.java:390)
    at org.apache.hadoop.hbase.master.MasterFileSystem.splitLog(MasterFileSystem.java:288)
    at org.apache.hadoop.hbase.master.handler.ServerShutdownHandler.process(ServerShutdownHandler.java:203)
    ... 4 more

我的群集有什么问题？