dlmarion commented on code in PR #295: URL: https://github.com/apache/accumulo-testing/pull/295#discussion_r2207214809
########## src/main/java/org/apache/accumulo/testing/continuous/CorruptEntry.java: ########## @@ -0,0 +1,69 @@ +/* + * 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 + * + * https://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.testing.continuous; + +import static java.nio.charset.StandardCharsets.UTF_8; + +import org.apache.accumulo.core.client.AccumuloClient; +import org.apache.accumulo.core.data.Key; +import org.apache.accumulo.core.data.Mutation; +import org.apache.accumulo.core.data.Range; +import org.apache.hadoop.io.Text; + +public class CorruptEntry { + public static void main(String[] args) throws Exception { + try (ContinuousEnv env = new ContinuousEnv(args); + AccumuloClient client = env.getAccumuloClient(); + var scanner = client.createScanner(env.getAccumuloTableName()); + var writer = client.createBatchWriter(env.getAccumuloTableName())) { + final long rowMin = env.getRowMin(); + + var startRow = ContinuousIngest.genRow(rowMin); + new Range(new Text(startRow), null); + scanner.setRange(new Range(new Text(startRow), null)); + var iter = scanner.iterator(); + if (iter.hasNext()) { + var entry = iter.next(); + byte[] val = entry.getValue().get(); + int offset = ContinuousWalk.getChecksumOffset(val); + if (offset >= 0) { + for (int i = 0; i < 8; i++) { + if (val[i + offset] == 'f' || val[i + offset] == 'F') { + // in the case of an f hex char, set the hex char to 0 + val[i + offset] = '0'; + + } else { + // increment the hex char in the checcksum + val[i + offset]++; + } + } + Key key = entry.getKey(); + Mutation m = new Mutation(key.getRow()); + m.at().family(key.getColumnFamily()).qualifier(key.getColumnQualifier()) + .visibility(key.getColumnVisibility()).put(val); + writer.addMutation(m); + writer.flush(); + System.out.println("Corrupted checksum value on key " + key); + } + } else { + System.out.println("No entry found after " + new String(startRow, UTF_8)); Review Comment: I wonder if this should be an exception instead of a println. It would be more obvious to the user running the command that it didn't work. ########## conf/accumulo-testing.properties: ########## @@ -44,18 +44,9 @@ test.ci.common.accumulo.num.tablets=20 # Format: a,b|a,b,c|c test.ci.common.auths= # Accumulo tserver properties to set when creating a table -test.ci.common.accumulo.server.props=\ Review Comment: Can we comment these lines instead of removing them? They serve as a good example on how to configure. When setting up a test cluster using the Terraform scripts, this repo gets cloned onto the test cluster for testing. Having these lines here as an example would mean that we don't have to look this up to do some testing. -- This is an automated message from the Apache Git Service. To respond to the message, please log on to GitHub and use the URL above to go to the specific comment. To unsubscribe, e-mail: notifications-unsubscr...@accumulo.apache.org For queries about this service, please contact Infrastructure at: us...@infra.apache.org
