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HDFS-14923. Remove dead code from HealthMonitor. Contributed by Fei Hui. 

Signed-off-by: Wei-Chiu Chuang <weichiu@apache.org>
(cherry picked from commit 7be5508d9b)
(cherry picked from commit 54d3e212bf)
This commit is contained in:
Fei Hui 2019-10-25 15:05:31 -07:00 committed by Wei-Chiu Chuang
parent 44ca2fe4db
commit 287fab6346
1 changed files with 1 additions and 13 deletions
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14
hadoop-common-project/hadoop-common/src/main/java/org/apache/hadoop/ha/HealthMonitor.java
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@ -134,19 +134,11 @@ public class HealthMonitor {
public void addCallback(Callback cb) { public void addCallback(Callback cb) {
this.callbacks.add(cb); this.callbacks.add(cb);
} }
public void removeCallback(Callback cb) {
callbacks.remove(cb);
}
public synchronized void addServiceStateCallback(ServiceStateCallback cb) { public synchronized void addServiceStateCallback(ServiceStateCallback cb) {
this.serviceStateCallbacks.add(cb); this.serviceStateCallbacks.add(cb);
} }
public synchronized void removeServiceStateCallback(ServiceStateCallback cb) {
serviceStateCallbacks.remove(cb);
}
public void shutdown() { public void shutdown() {
LOG.info("Stopping HealthMonitor thread"); LOG.info("Stopping HealthMonitor thread");
shouldRun = false; shouldRun = false;
@ -258,11 +250,7 @@ public class HealthMonitor {
synchronized State getHealthState() { synchronized State getHealthState() {
return state; return state;
} }
synchronized HAServiceStatus getLastServiceStatus() {
return lastServiceState;
}
boolean isAlive() { boolean isAlive() {
return daemon.isAlive(); return daemon.isAlive();
} }