org.apache.hadoop.hbase.exceptions.PreemptiveFastFailException Maven / Gradle / Ivy
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* distributed with this work for additional information
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* 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
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*/
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;
}
/** Returns time of the fist failure */
public long getFirstFailureAt() {
return timeOfFirstFailureMilliSec;
}
/** Returns time of the latest attempt */
public long getLastAttemptAt() {
return timeOfLatestAttemptMilliSec;
}
/** Returns failure count */
public long getFailureCount() {
return failureCount;
}
/** Returns true if operation was attempted by server, false otherwise. */
public boolean wasOperationAttemptedByServer() {
return false;
}
/** Returns true if we know no mutation made it to the server, false otherwise. */
public boolean isGuaranteedClientSideOnly() {
return guaranteedClientSideOnly;
}
}