Question

在hbase shell中我可以

scan 't1', { LIMIT=>10, REVERSED => TRUE}

我可以看到最后10条记录加载到表中当我通过thrift在node.js中尝试逻辑上相同的函数时，返回的结果是前10个

thrift logs at trace level 
2014-12-30 21:23:31,652 TRACE org.apache.hadoop.hbase.client.ClientScanner: Scan table=t1, startRow=000000030000
2014-12-30 21:23:31,652 DEBUG org.apache.hadoop.ipc.RpcClient: Use SIMPLE authentication for service ClientService, sasl=false
2014-12-30 21:23:31,652 DEBUG org.apache.hadoop.ipc.RpcClient: Connecting to hdpnode1/127.0.0.1:60020
2014-12-30 21:23:31,653 DEBUG org.apache.hadoop.ipc.RpcClient: IPC Client (2037671159) connection to hdpnode1/127.0.0.1:60020 from hbase: starting, connections 1
2014-12-30 21:23:31,653 DEBUG org.apache.hadoop.ipc.RpcClient: IPC Client (2037671159) connection to hdpnode1/127.0.0.1:60020 from hbase: wrote request header call_id: 45 method_name: "Scan" request_param: true
2014-12-30 21:23:31,654 DEBUG org.apache.hadoop.ipc.RpcClient: IPC Client (2037671159) connection to hdpnode1/127.0.0.1:60020 from hbase: got response header call_id: 45, totalSize: 14 bytes
2014-12-30 21:23:31,654 TRACE org.apache.hadoop.ipc.RpcClient: Call: Scan, callTime: 2ms
2014-12-30 21:23:31,736 DEBUG org.apache.hadoop.hbase.thrift.ThriftServerRunner$HBaseHandler: scannerGetList: id=23
2014-12-30 21:23:31,737 DEBUG org.apache.hadoop.ipc.RpcClient: IPC Client (2037671159) connection to hdpnode1/127.0.0.1:60020 from hbase: wrote request header call_id: 46 method_name: "Scan" request_param: true
2014-12-30 21:23:31,738 DEBUG org.apache.hadoop.ipc.RpcClient: IPC Client (2037671159) connection to hdpnode1/127.0.0.1:60020 from hbase: got response header call_id: 46 cell_block_meta { length: 47600 }, totalSize: 47821 bytes
2014-12-30 21:23:31,738 TRACE org.apache.hadoop.ipc.RpcClient: Call: Scan, callTime: 2ms
2014-12-30 21:23:41,737 DEBUG org.apache.hadoop.ipc.RpcClient: IPC Client (2037671159) connection to hdpnode1/127.0.0.1:60020 from hbase: closed
2014-12-30 21:23:41,737 DEBUG org.apache.hadoop.ipc.RpcClient: IPC Client (2037671159) connection to hdpnode1/127.0.0.1:60020 from hbase: stopped, connections 0

问题是

我怎么知道我将正确的参数传递给thrift
thrift-nodejs支持它

我在

CDH 5.3
hbase 0.98.6

我试图通过thrift（node.js具体）扫描反转选项

Thrift设置为hsha并且每个CM应该是从https://thrift.apache.org/tutorial/nodejs编译的框架nodejs

以编程方式通过Thrift调用从HBase读取最后10条记录

0 个答案: