| /** |
| * |
| * 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.hadoop.hbase.exceptions; |
| |
| import java.net.ConnectException; |
| |
| import org.apache.hadoop.hbase.ServerName; |
| import org.apache.yetus.audience.InterfaceAudience; |
| |
| /** |
| * Thrown when the client believes that we are trying to communicate to has |
| * been repeatedly unresponsive for a while. |
| * |
| * On receiving such an exception. The ConnectionManager will skip all |
| * retries and fast fail the operation. |
| * @deprecated since 2.3.0, and will be removed in 4.0.0. |
| */ |
| @Deprecated |
| @InterfaceAudience.Public |
| public class PreemptiveFastFailException extends ConnectException { |
| private static final long serialVersionUID = 7129103682617007177L; |
| private long failureCount, timeOfFirstFailureMilliSec, timeOfLatestAttemptMilliSec; |
| |
| // If set, we guarantee that no modifications went to server |
| private boolean guaranteedClientSideOnly; |
| |
| /** |
| * @param count num of consecutive failures |
| * @param timeOfFirstFailureMilliSec when first failure happened |
| * @param timeOfLatestAttemptMilliSec when last attempt happened |
| * @param serverName server we failed to connect to |
| */ |
| public PreemptiveFastFailException(long count, long timeOfFirstFailureMilliSec, |
| long timeOfLatestAttemptMilliSec, ServerName serverName) { |
| super("Exception happened " + count + " times. to" + serverName); |
| this.failureCount = count; |
| this.timeOfFirstFailureMilliSec = timeOfFirstFailureMilliSec; |
| this.timeOfLatestAttemptMilliSec = timeOfLatestAttemptMilliSec; |
| } |
| |
| /** |
| * @param count num of consecutive failures |
| * @param timeOfFirstFailureMilliSec when first failure happened |
| * @param timeOfLatestAttemptMilliSec when last attempt happened |
| * @param serverName server we failed to connect to |
| * @param guaranteedClientSideOnly if true, guarantees that no mutations |
| * have been applied on the server |
| */ |
| public PreemptiveFastFailException(long count, long timeOfFirstFailureMilliSec, |
| long timeOfLatestAttemptMilliSec, ServerName serverName, |
| boolean guaranteedClientSideOnly) { |
| super("Exception happened " + count + " times. to" + serverName); |
| this.failureCount = count; |
| this.timeOfFirstFailureMilliSec = timeOfFirstFailureMilliSec; |
| this.timeOfLatestAttemptMilliSec = timeOfLatestAttemptMilliSec; |
| this.guaranteedClientSideOnly = guaranteedClientSideOnly; |
| } |
| |
| /** |
| * @return time of the fist failure |
| */ |
| public long getFirstFailureAt() { |
| return timeOfFirstFailureMilliSec; |
| } |
| |
| /** |
| * @return time of the latest attempt |
| */ |
| public long getLastAttemptAt() { |
| return timeOfLatestAttemptMilliSec; |
| } |
| |
| /** |
| * @return failure count |
| */ |
| public long getFailureCount() { |
| return failureCount; |
| } |
| |
| /** |
| * @return true if operation was attempted by server, false otherwise. |
| */ |
| public boolean wasOperationAttemptedByServer() { |
| return false; |
| } |
| |
| /** |
| * @return true if we know no mutation made it to the server, false otherwise. |
| */ |
| public boolean isGuaranteedClientSideOnly() { |
| return guaranteedClientSideOnly; |
| } |
| } |