我通常使用python HappyBase API来调用Hbase thrift服务，每天节省大约100 GB的数据。但我发现节俭服务很容易崩溃，几乎每天都会崩溃一次。我查看了以下异常，但我没有找到任何合理的信息:( Hbase版本为1.2（Cloudera 5.7），Happybase版本为0.9）
ERROR org.apache.hadoop.hbase.thrift.TBoundedThreadPoolServer: Error occurred during processing of message.
java.lang.NullPointerException
at org.apache.hadoop.hbase.thrift.ThriftServerRunner$HBaseHandler.mutateRowsTs(ThriftServerRunner.java:1312)
at org.apache.hadoop.hbase.thrift.ThriftServerRunner$HBaseHandler.mutateRows(ThriftServerRunner.java:1301)
at sun.reflect.GeneratedMethodAccessor1.invoke(Unknown Source)
at sun.reflect.DelegatingMethodAccessorImpl.invoke(DelegatingMethodAccessorImpl.java:43)
at java.lang.reflect.Method.invoke(Method.java:606)
at org.apache.hadoop.hbase.thrift.HbaseHandlerMetricsProxy.invoke(HbaseHandlerMetricsProxy.java:67)
at com.sun.proxy.$Proxy14.mutateRows(Unknown Source)
at org.apache.hadoop.hbase.thrift.generated.Hbase$Processor$mutateRows.getResult(Hbase.java:4390)
at org.apache.hadoop.hbase.thrift.generated.Hbase$Processor$mutateRows.getResult(Hbase.java:4374)
at org.apache.thrift.ProcessFunction.process(ProcessFunction.java:39)
at org.apache.thrift.TBaseProcessor.process(TBaseProcessor.java:39)
at org.apache.hadoop.hbase.thrift.TBoundedThreadPoolServer$ClientConnnection.run(TBoundedThreadPoolServer.java:289)
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)