HBase Thrift批量插入Hbase
时间: 2023-06-23 19:52:35 浏览: 129
HBase Thrift支持批量插入数据到HBase数据库,可以提高插入数据的效率。具体的实现方法如下:
1. 创建一个批量插入请求对象,例如:
```
import org.apache.hadoop.hbase.thrift.generated.*;
TTable tTable = new TTable();
tTable.setTableName("table_name");
TColumnValue tColumnValue1 = new TColumnValue();
tColumnValue1.setFamily("column_family1");
tColumnValue1.setQualifier("column1");
tColumnValue1.setValue("value1");
TColumnValue tColumnValue2 = new TColumnValue();
tColumnValue2.setFamily("column_family1");
tColumnValue2.setQualifier("column2");
tColumnValue2.setValue("value2");
TColumnValue tColumnValue3 = new TColumnValue();
tColumnValue3.setFamily("column_family2");
tColumnValue3.setQualifier("column3");
tColumnValue3.setValue("value3");
List<TMutation> tMutations = new ArrayList<TMutation>();
TMutation tMutation1 = new TMutation(TMutationType.PUT, tColumnValue1);
TMutation tMutation2 = new TMutation(TMutationType.PUT, tColumnValue2);
TMutation tMutation3 = new TMutation(TMutationType.PUT, tColumnValue3);
tMutations.add(tMutation1);
tMutations.add(tMutation2);
tMutations.add(tMutation3);
TBatchMutation tBatchMutation = new TBatchMutation();
tBatchMutation.setMutations(tMutations);
Map<ByteBuffer, TBatchMutation> mutationMap = new HashMap<ByteBuffer, TBatchMutation>();
mutationMap.put(ByteBuffer.wrap(Bytes.toBytes("row_key")), tBatchMutation);
```
2. 调用批量插入方法,例如:
```
client.batchMutate(mutationMap, new TDurability());
```
其中,`client`是HBase Thrift的客户端对象,`batchMutate`是批量插入方法,`mutationMap`是批量插入请求对象,`TDurability`是HBase支持的一种数据持久化方式,表示插入的数据需要持久化到磁盘上。
以上就是使用HBase Thrift批量插入数据到HBase数据库的方法。需要注意的是,批量插入的数据量不能过大,否则可能导致内存溢出或者网络传输问题。可以根据实际情况调整批量插入的数据量。
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