public class DeadNodeDetector
extends org.apache.hadoop.util.Daemon
Thread.UncaughtExceptionHandler
Modifier and Type | Field and Description |
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static org.slf4j.Logger |
LOG |
MAX_PRIORITY, MIN_PRIORITY, NORM_PRIORITY
Constructor and Description |
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DeadNodeDetector(String name,
org.apache.hadoop.conf.Configuration conf) |
Modifier and Type | Method and Description |
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void |
addNodeToDetect(org.apache.hadoop.hdfs.DFSInputStream dfsInputStream,
org.apache.hadoop.hdfs.protocol.DatanodeInfo datanodeInfo)
Add datanode to suspectNodes and suspectAndDeadNodes.
|
Set<org.apache.hadoop.hdfs.protocol.DatanodeInfo> |
clearAndGetDetectedDeadNodes()
Remove dead node which is not used by any DFSInputStream from deadNodes.
|
org.apache.hadoop.hdfs.DeadNodeDetector.UniqueQueue<org.apache.hadoop.hdfs.protocol.DatanodeInfo> |
getDeadNodesProbeQueue() |
org.apache.hadoop.hdfs.DeadNodeDetector.UniqueQueue<org.apache.hadoop.hdfs.protocol.DatanodeInfo> |
getSuspectNodesProbeQueue() |
boolean |
isDeadNode(org.apache.hadoop.hdfs.protocol.DatanodeInfo datanodeInfo) |
void |
removeNodeFromDeadNodeDetector(org.apache.hadoop.hdfs.DFSInputStream dfsInputStream,
org.apache.hadoop.hdfs.protocol.DatanodeInfo datanodeInfo)
Remove suspect and dead node from suspectAndDeadNodes#dfsInputStream and
local deadNodes.
|
void |
run() |
void |
shutdown()
Shutdown all the threads.
|
activeCount, checkAccess, clone, countStackFrames, currentThread, destroy, dumpStack, enumerate, getAllStackTraces, getContextClassLoader, getDefaultUncaughtExceptionHandler, getId, getName, getPriority, getStackTrace, getState, getThreadGroup, getUncaughtExceptionHandler, holdsLock, interrupt, interrupted, isAlive, isDaemon, isInterrupted, join, join, join, resume, setContextClassLoader, setDaemon, setDefaultUncaughtExceptionHandler, setName, setPriority, setUncaughtExceptionHandler, sleep, sleep, start, stop, stop, suspend, toString, yield
public DeadNodeDetector(String name, org.apache.hadoop.conf.Configuration conf)
public void shutdown()
public boolean isDeadNode(org.apache.hadoop.hdfs.protocol.DatanodeInfo datanodeInfo)
public org.apache.hadoop.hdfs.DeadNodeDetector.UniqueQueue<org.apache.hadoop.hdfs.protocol.DatanodeInfo> getDeadNodesProbeQueue()
public org.apache.hadoop.hdfs.DeadNodeDetector.UniqueQueue<org.apache.hadoop.hdfs.protocol.DatanodeInfo> getSuspectNodesProbeQueue()
public void addNodeToDetect(org.apache.hadoop.hdfs.DFSInputStream dfsInputStream, org.apache.hadoop.hdfs.protocol.DatanodeInfo datanodeInfo)
public Set<org.apache.hadoop.hdfs.protocol.DatanodeInfo> clearAndGetDetectedDeadNodes()
public void removeNodeFromDeadNodeDetector(org.apache.hadoop.hdfs.DFSInputStream dfsInputStream, org.apache.hadoop.hdfs.protocol.DatanodeInfo datanodeInfo)
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