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As far as I know, in HBase, the key of the row can not be changed. But if you really need a row key rename function, the best thing to do is to copy all the data one row to another row in HBase using JAVA.
e.g. I have existing row with key “key1”, and I want to create a row with key “key2” copied from “key1” row. It is simple:
// lets say your already got the result from table.get(Bytes.toBytes("key1"))
Put put = new Put(Bytes.toBytes("key2"));
NavigableMap> familyQualifierMap = result.getNoVersionMap();
for (byte[] familyBytes : familyQualifierMap.keySet()) {
NavigableMap qualifierMap = familyQualifierMap.get(familyBytes);
for (byte[] qualifier : qualifierMap.keySet()) {
put.add(familyBytes, qualifier, qualifierMap.get(qualifier)); } }
table.put(put);
table.flushCommits();
table.close();
