| /* |
| * Licensed to the Apache Software Foundation (ASF) under one |
| * or more contributor license agreements. See the NOTICE file |
| * distributed with this work for additional information |
| * regarding copyright ownership. The ASF licenses this file |
| * to you under the Apache License, Version 2.0 (the |
| * "License"); you may not use this file except in compliance |
| * with the License. You may obtain a copy of the License at |
| * |
| * http://www.apache.org/licenses/LICENSE-2.0 |
| * |
| * Unless required by applicable law or agreed to in writing, |
| * software distributed under the License is distributed on an |
| * "AS IS" BASIS, WITHOUT WARRANTIES OR CONDITIONS OF ANY |
| * KIND, either express or implied. See the License for the |
| * specific language governing permissions and limitations |
| * under the License. |
| */ |
| package org.apache.accumulo.server.util; |
| |
| import java.security.SecureRandom; |
| import java.util.Iterator; |
| import java.util.Properties; |
| import java.util.Random; |
| |
| import org.apache.accumulo.core.cli.ClientOpts; |
| import org.apache.accumulo.core.client.Accumulo; |
| import org.apache.accumulo.core.client.AccumuloClient; |
| import org.apache.accumulo.core.client.BatchWriter; |
| import org.apache.accumulo.core.conf.ClientProperty; |
| import org.apache.accumulo.core.data.Mutation; |
| import org.apache.accumulo.core.data.Value; |
| import org.apache.hadoop.io.Text; |
| import org.apache.htrace.TraceScope; |
| import org.slf4j.Logger; |
| import org.slf4j.LoggerFactory; |
| |
| import com.beust.jcommander.Parameter; |
| |
| public class RandomWriter { |
| |
| private static int num_columns_per_row = 1; |
| private static int num_payload_bytes = 1024; |
| private static final Logger log = LoggerFactory.getLogger(RandomWriter.class); |
| |
| public static class RandomMutationGenerator implements Iterable<Mutation>, Iterator<Mutation> { |
| private long max_mutations; |
| private int mutations_so_far = 0; |
| private Random r = new SecureRandom(); |
| private static final Logger log = LoggerFactory.getLogger(RandomMutationGenerator.class); |
| |
| public RandomMutationGenerator(long num_mutations) { |
| max_mutations = num_mutations; |
| } |
| |
| @Override |
| public boolean hasNext() { |
| return mutations_so_far < max_mutations; |
| } |
| |
| @Override |
| public Mutation next() { |
| Text row_value = |
| new Text(Long.toString(((r.nextLong() & 0x7fffffffffffffffL) / 177) % 100000000000L)); |
| Mutation m = new Mutation(row_value); |
| for (int column = 0; column < num_columns_per_row; column++) { |
| Text column_fam = new Text("col_fam"); |
| byte[] bytes = new byte[num_payload_bytes]; |
| r.nextBytes(bytes); |
| m.put(column_fam, new Text("" + column), new Value(bytes)); |
| } |
| mutations_so_far++; |
| if (mutations_so_far % 1000000 == 0) { |
| log.info("Created {} mutations so far", mutations_so_far); |
| } |
| return m; |
| } |
| |
| @Override |
| public void remove() { |
| mutations_so_far++; |
| } |
| |
| @Override |
| public Iterator<Mutation> iterator() { |
| return this; |
| } |
| } |
| |
| static class Opts extends ClientOpts { |
| @Parameter(names = "--count", description = "number of mutations to write", required = true) |
| long count; |
| @Parameter(names = "--table", description = "table to use") |
| String tableName = "test_write_table"; |
| } |
| |
| public static void main(String[] args) throws Exception { |
| Opts opts = new Opts(); |
| opts.principal = "root"; |
| try (TraceScope clientSpan = opts.parseArgsAndTrace(RandomWriter.class.getName(), args)) { |
| long start = System.currentTimeMillis(); |
| Properties clientProps = opts.getClientProps(); |
| String principal = ClientProperty.AUTH_PRINCIPAL.getValue(clientProps); |
| log.info("starting at {} for user {}", start, principal); |
| try (AccumuloClient accumuloClient = Accumulo.newClient().from(clientProps).build(); |
| BatchWriter bw = accumuloClient.createBatchWriter(opts.tableName)) { |
| log.info("Writing {} mutations...", opts.count); |
| bw.addMutations(new RandomMutationGenerator(opts.count)); |
| } catch (Exception e) { |
| log.error("{}", e.getMessage(), e); |
| throw e; |
| } |
| long stop = System.currentTimeMillis(); |
| |
| log.info("stopping at {}", stop); |
| log.info("elapsed: {}", (((double) stop - (double) start) / 1000.0)); |
| } |
| } |
| |
| } |