HDFS-14336. Fix checkstyle for NameNodeMXBean. Contributed by Danny Becker.
This commit is contained in:
Inigo Goiri
parent
e40e2d6ad5
commit
4b7313e640
@ -35,58 +35,58 @@ public interface NameNodeMXBean {
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/**
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* Gets the version of Hadoop.
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*
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* @return the version
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* @return the version.
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*/
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public String getVersion();
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String getVersion();
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/**
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* Get the version of software running on the Namenode
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* @return a string representing the version
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* Get the version of software running on the Namenode.
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*
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* @return a string representing the version.
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*/
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public String getSoftwareVersion();
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String getSoftwareVersion();
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/**
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* Gets the used space by data nodes.
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*
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* @return the used space by data nodes
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* @return the used space by data nodes.
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*/
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public long getUsed();
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long getUsed();
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/**
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* Gets total non-used raw bytes.
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*
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* @return total non-used raw bytes
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* @return total non-used raw bytes.
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*/
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public long getFree();
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long getFree();
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/**
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* Gets total raw bytes including non-dfs used space.
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*
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* @return the total raw bytes including non-dfs used space
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* @return the total raw bytes including non-dfs used space.
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*/
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public long getTotal();
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long getTotal();
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/**
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* Gets capacity of the provided storage mounted, in bytes.
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*
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* @return the total raw bytes present in the provided storage.
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*/
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public long getProvidedCapacity();
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long getProvidedCapacity();
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/**
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* Gets the safemode status
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*
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* @return the safemode status
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* Gets the safemode status.
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*
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* @return the safemode status.
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*/
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public String getSafemode();
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String getSafemode();
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/**
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* Checks if upgrade is finalized.
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*
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* @return true, if upgrade is finalized
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* @return true, if upgrade is finalized.
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*/
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public boolean isUpgradeFinalized();
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boolean isUpgradeFinalized();
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/**
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* Gets the RollingUpgrade information.
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@ -94,73 +94,82 @@ public interface NameNodeMXBean {
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* @return Rolling upgrade information if an upgrade is in progress. Else
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* (e.g. if there is no upgrade or the upgrade is finalized), returns null.
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*/
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public RollingUpgradeInfo.Bean getRollingUpgradeStatus();
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RollingUpgradeInfo.Bean getRollingUpgradeStatus();
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/**
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* Gets total used space by data nodes for non DFS purposes such as storing
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* temporary files on the local file system
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* temporary files on the local file system.
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*
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* @return the non dfs space of the cluster
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* @return the non dfs space of the cluster.
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*/
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public long getNonDfsUsedSpace();
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long getNonDfsUsedSpace();
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/**
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* Gets the total used space by data nodes as percentage of total capacity
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* Gets the total used space by data nodes as percentage of total capacity.
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*
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* @return the percentage of used space on the cluster.
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*/
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public float getPercentUsed();
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float getPercentUsed();
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/**
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* Gets the total remaining space by data nodes as percentage of total
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* capacity
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* capacity.
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*
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* @return the percentage of the remaining space on the cluster
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* @return the percentage of the remaining space on the cluster.
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*/
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public float getPercentRemaining();
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float getPercentRemaining();
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/**
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* Returns the amount of cache used by the datanode (in bytes).
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* Gets the amount of cache used by the datanode (in bytes).
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*
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* @return the amount of cache used by the datanode (in bytes).
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*/
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public long getCacheUsed();
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long getCacheUsed();
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/**
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* Returns the total cache capacity of the datanode (in bytes).
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* Gets the total cache capacity of the datanode (in bytes).
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*
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* @return the total cache capacity of the datanode (in bytes).
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*/
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public long getCacheCapacity();
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long getCacheCapacity();
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/**
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* Get the total space used by the block pools of this namenode
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* Get the total space used by the block pools of this namenode.
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*
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* @return the total space used by the block pools of this namenode.
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*/
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public long getBlockPoolUsedSpace();
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long getBlockPoolUsedSpace();
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/**
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* Get the total space used by the block pool as percentage of total capacity
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* Get the total space used by the block pool as percentage of total capacity.
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*
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* @return the total space used by the block pool as percentage of total
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* capacity.
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*/
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public float getPercentBlockPoolUsed();
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float getPercentBlockPoolUsed();
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/**
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* Gets the total numbers of blocks on the cluster.
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*
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* @return the total number of blocks of the cluster
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* @return the total number of blocks of the cluster.
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*/
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public long getTotalBlocks();
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long getTotalBlocks();
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/**
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* Gets the total number of missing blocks on the cluster
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* Gets the total number of missing blocks on the cluster.
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*
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* @return the total number of missing blocks on the cluster
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* @return the total number of missing blocks on the cluster.
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*/
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public long getNumberOfMissingBlocks();
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long getNumberOfMissingBlocks();
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/**
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* Gets the total number of missing blocks on the cluster with
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* replication factor 1
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* replication factor 1.
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*
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* @return the total number of missing blocks on the cluster with
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* replication factor 1
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* replication factor 1.
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*/
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public long getNumberOfMissingBlocksWithReplicationFactorOne();
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long getNumberOfMissingBlocksWithReplicationFactorOne();
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/**
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* Gets the total number of replicated low redundancy blocks on the cluster
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@ -169,72 +178,72 @@ public interface NameNodeMXBean {
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* @return the total number of low redundancy blocks on the cluster
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* with the highest risk of loss.
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*/
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public long getHighestPriorityLowRedundancyReplicatedBlocks();
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long getHighestPriorityLowRedundancyReplicatedBlocks();
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/**
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* Gets the total number of erasure coded low redundancy blocks on the cluster
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* with the highest risk of loss
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* with the highest risk of loss.
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*
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* @return the total number of low redundancy blocks on the cluster
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* with the highest risk of loss
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* with the highest risk of loss.
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*/
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public long getHighestPriorityLowRedundancyECBlocks();
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long getHighestPriorityLowRedundancyECBlocks();
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/**
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* Gets the total number of snapshottable dirs in the system.
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*
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* @return the total number of snapshottable dirs in the system
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* @return the total number of snapshottable dirs in the system.
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*/
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public long getNumberOfSnapshottableDirs();
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long getNumberOfSnapshottableDirs();
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/**
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* Gets the number of threads.
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*
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* @return the number of threads
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* @return the number of threads.
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*/
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public int getThreads();
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int getThreads();
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/**
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* Gets the live node information of the cluster.
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*
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* @return the live node information
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* @return the live node information.
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*/
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public String getLiveNodes();
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String getLiveNodes();
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/**
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* Gets the dead node information of the cluster.
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*
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* @return the dead node information
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* @return the dead node information.
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*/
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public String getDeadNodes();
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String getDeadNodes();
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/**
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* Gets the decommissioning node information of the cluster.
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*
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* @return the decommissioning node information
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* @return the decommissioning node information.
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*/
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public String getDecomNodes();
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String getDecomNodes();
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/**
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* Gets the information on nodes entering maintenance.
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*
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* @return the information on nodes entering maintenance
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* @return the information on nodes entering maintenance.
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*/
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String getEnteringMaintenanceNodes();
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/**
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* Gets the cluster id.
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*
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* @return the cluster id
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* @return the cluster id.
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*/
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public String getClusterId();
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String getClusterId();
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/**
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* Gets the block pool id.
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*
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* @return the block pool id
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* @return the block pool id.
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*/
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public String getBlockPoolId();
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String getBlockPoolId();
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/**
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* Get status information about the directories storing image and edits logs
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@ -242,71 +251,76 @@ public interface NameNodeMXBean {
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*
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* @return the name dir status information, as a JSON string.
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*/
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public String getNameDirStatuses();
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String getNameDirStatuses();
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/**
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* Get Max, Median, Min and Standard Deviation of DataNodes usage.
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*
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* @return the DataNode usage information, as a JSON string.
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*/
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public String getNodeUsage();
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String getNodeUsage();
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/**
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* Get status information about the journals of the NN.
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*
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* @return the name journal status information, as a JSON string.
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*/
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public String getNameJournalStatus();
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String getNameJournalStatus();
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/**
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* Get information about the transaction ID, including the last applied
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* transaction ID and the most recent checkpoint's transaction ID
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* transaction ID and the most recent checkpoint's transaction ID.
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*
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* @return information about the transaction ID.
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*/
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public String getJournalTransactionInfo();
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String getJournalTransactionInfo();
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/**
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* Gets the NN start time in milliseconds.
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* @return the NN start time in msec
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*
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* @return the NN start time in msec.
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*/
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long getNNStartedTimeInMillis();
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/**
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* Get the compilation information which contains date, user and branch
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* Get the compilation information which contains date, user and branch.
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*
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* @return the compilation information, as a JSON string.
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*/
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public String getCompileInfo();
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String getCompileInfo();
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/**
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* Get the list of corrupt files
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* Get the list of corrupt files.
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*
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* @return the list of corrupt files, as a JSON string.
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*/
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public String getCorruptFiles();
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String getCorruptFiles();
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/**
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* Get the number of distinct versions of live datanodes
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* Get the number of distinct versions of live datanodes.
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*
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* @return the number of distinct versions of live datanodes
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* @return the number of distinct versions of live datanodes.
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*/
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public int getDistinctVersionCount();
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int getDistinctVersionCount();
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/**
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* Get the number of live datanodes for each distinct versions
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* Get the number of live datanodes for each distinct versions.
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*
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* @return the number of live datanodes for each distinct versions
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* @return the number of live datanodes for each distinct versions.
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*/
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public Map<String, Integer> getDistinctVersions();
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Map<String, Integer> getDistinctVersions();
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/**
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* Get namenode directory size.
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*
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* @return namenode directory size.
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*/
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String getNameDirSize();
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/**
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* Verifies whether the cluster setup can support all enabled EC policies.
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*
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* @return the result of the verification
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* @return the result of the verification.
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*/
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String getVerifyECWithTopologyResult();
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