Java Code Examples for org.apache.hadoop.hbase.client.Delete#deleteFamily()

The following examples show how to use org.apache.hadoop.hbase.client.Delete#deleteFamily() . You can vote up the ones you like or vote down the ones you don't like, and go to the original project or source file by following the links above each example. You may check out the related API usage on the sidebar.
Example 1
Source File: HBaseLogDeleter.java    From Eagle with Apache License 2.0 4 votes vote down vote up
private Delete createDelete(byte[] row) throws IOException{
	Delete delete = new Delete(row);
	delete.deleteFamily(columnFamily.getBytes());
	return delete;
}
 
Example 2
Source File: HBaseLogDeleter.java    From eagle with Apache License 2.0 4 votes vote down vote up
private Delete createDelete(byte[] row) throws IOException {
    Delete delete = new Delete(row);
    delete.deleteFamily(columnFamily.getBytes());
    return delete;
}
 
Example 3
Source File: TransactionalRegion.java    From hbase-secondary-index with GNU General Public License v3.0 4 votes vote down vote up
protected void doReconstructionLog(final Path oldCoreLogFile, final long minSeqId, final long maxSeqId,
        final Progressable reporter) throws UnsupportedEncodingException, IOException {

    Path trxPath = new Path(oldCoreLogFile.getParent(), THLog.HREGION_OLD_THLOGFILE_NAME);

    // We can ignore doing anything with the Trx Log table, it is
    // not-transactional.
    if (super.getTableDesc().getNameAsString().equals(HBaseBackedTransactionLogger.TABLE_NAME)) {
        return;
    }

    THLogRecoveryManager recoveryManager = new THLogRecoveryManager(this);
    Map<Long, WALEdit> commitedTransactionsById = recoveryManager.getCommitsFromLog(trxPath, minSeqId, reporter);

    if (commitedTransactionsById != null && commitedTransactionsById.size() > 0) {
        LOG.debug("found " + commitedTransactionsById.size() + " COMMITED transactions to recover.");

        for (Entry<Long, WALEdit> entry : commitedTransactionsById.entrySet()) {
            LOG.debug("Writing " + entry.getValue().size() + " updates for transaction " + entry.getKey());
            WALEdit b = entry.getValue();

            for (KeyValue kv : b.getKeyValues()) {
                // FIXME need to convert these into puts and deletes. Not sure this is
                // the write way.
                // Could probably combine multiple KV's into single put/delete.
                // Also timestamps?
                if (kv.getType() == KeyValue.Type.Put.getCode()) {
                    Put put = new Put();
                    put.add(kv);
                    super.put(put);
                } else if (kv.isDelete()) {
                    Delete del = new Delete(kv.getRow());
                    if (kv.isDeleteFamily()) {
                        del.deleteFamily(kv.getFamily());
                    } else if (kv.isDeleteType()) {
                        del.deleteColumn(kv.getFamily(), kv.getQualifier());
                    }
                }

            }

        }

        LOG.debug("Flushing cache"); // We must trigger a cache flush,
        // otherwise we will would ignore the log on subsequent failure
        if (!super.flushcache()) {
            LOG.warn("Did not flush cache");
        }
    }
}
 
Example 4
Source File: HBaseUtils.java    From bigdata-tutorial with Apache License 2.0 3 votes vote down vote up
/**
 * delete a row column family by rowkey
 *
 * @param table
 * @param rowKey
 * @throws Exception
 */
public static void deleteFamily(HTableInterface table, String rowKey, String family) throws Exception {
	Delete delete = new Delete(Bytes.toBytes(rowKey));
	delete.deleteFamily(Bytes.toBytes(family));
	table.delete(delete);
	LOGGER.info(">>>> HBase Delete {} data with key = {}, columnFamily = {}.", new String(table.getTableName()), rowKey, family);
}
 
Example 5
Source File: HBaseDMLHandler.java    From bigdata-tutorial with Apache License 2.0 3 votes vote down vote up
/**
 * delete a row identified by rowkey
 *
 * @param tableName
 * @param rowKey
 * @throws Exception
 */
public void deleteFamily(String tableName, String rowKey, String family) throws Exception {
	HTableInterface htable = getTable(tableName);
	Delete delete = new Delete(Bytes.toBytes(rowKey));
	delete.deleteFamily(Bytes.toBytes(family));
	htable.delete(delete);
}