001/** 002 * Licensed to the Apache Software Foundation (ASF) under one 003 * or more contributor license agreements. See the NOTICE file 004 * distributed with this work for additional information 005 * regarding copyright ownership. The ASF licenses this file 006 * to you under the Apache License, Version 2.0 (the 007 * "License"); you may not use this file except in compliance 008 * with the License. You may obtain a copy of the License at 009 * 010 * http://www.apache.org/licenses/LICENSE-2.0 011 * 012 * Unless required by applicable law or agreed to in writing, software 013 * distributed under the License is distributed on an "AS IS" BASIS, 014 * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. 015 * See the License for the specific language governing permissions and 016 * limitations under the License. 017 */ 018 019package org.apache.hadoop.hbase.chaos.actions; 020 021import org.apache.hadoop.hbase.HBaseTestingUtility; 022import org.apache.hadoop.hbase.TableName; 023import org.apache.hadoop.hbase.client.Admin; 024import org.slf4j.Logger; 025import org.slf4j.LoggerFactory; 026 027/** 028* Action that tries to flush a table. 029*/ 030public class FlushTableAction extends Action { 031 private static final Logger LOG = 032 LoggerFactory.getLogger(FlushTableAction.class); 033 private final long sleepTime; 034 private final TableName tableName; 035 036 public FlushTableAction(TableName tableName) { 037 this(-1, tableName); 038 } 039 040 public FlushTableAction(int sleepTime, TableName tableName) { 041 this.sleepTime = sleepTime; 042 this.tableName = tableName; 043 } 044 045 @Override 046 public void perform() throws Exception { 047 HBaseTestingUtility util = context.getHBaseIntegrationTestingUtility(); 048 Admin admin = util.getAdmin(); 049 050 // Don't try the flush if we're stopping 051 if (context.isStopping()) { 052 return; 053 } 054 055 LOG.info("Performing action: Flush table " + tableName); 056 try { 057 admin.flush(tableName); 058 } catch (Exception ex) { 059 LOG.warn("Flush failed, might be caused by other chaos: " + ex.getMessage()); 060 } 061 if (sleepTime > 0) { 062 Thread.sleep(sleepTime); 063 } 064 } 065}