/**
* Gives a report on how the FileSystem is doing.
* @exception IOException if the filesystem does not exist.
*/
public void report() throws IOException {
DistributedFileSystem dfs = getDFS();
FsStatus ds = dfs.getStatus();
long capacity = ds.getCapacity();
long used = ds.getUsed();
long remaining = ds.getRemaining();
long presentCapacity = used + remaining;
boolean mode = dfs.setSafeMode(HdfsConstants.SafeModeAction.SAFEMODE_GET);
if (mode) {
System.out.println("Safe mode is ON");
}
System.out.println("Configured Capacity: " + capacity
+ " (" + StringUtils.byteDesc(capacity) + ")");
System.out.println("Present Capacity: " + presentCapacity
+ " (" + StringUtils.byteDesc(presentCapacity) + ")");
System.out.println("DFS Remaining: " + remaining
+ " (" + StringUtils.byteDesc(remaining) + ")");
System.out.println("DFS Used: " + used
+ " (" + StringUtils.byteDesc(used) + ")");
System.out.println("DFS Used%: "
+ StringUtils.limitDecimalTo2(((1.0 * used) / presentCapacity) * 100)
+ "%");
/* These counts are not always upto date. They are updated after
* iteration of an internal list. Should be updated in a few seconds to
* minutes. Use "-metaSave" to list of all such blocks and accurate
* counts.
*/
System.out.println("Under replicated blocks: " +
dfs.getUnderReplicatedBlocksCount());
System.out.println("Blocks with corrupt replicas: " +
dfs.getCorruptBlocksCount());
System.out.println("Missing blocks: " +
dfs.getMissingBlocksCount());
System.out.println();
System.out.println("-------------------------------------------------");
DatanodeInfo[] live = dfs.getDataNodeStats(DatanodeReportType.LIVE);
DatanodeInfo[] dead = dfs.getDataNodeStats(DatanodeReportType.DEAD);
System.out.println("Datanodes available: " + live.length +
" (" + (live.length + dead.length) + " total, " +
dead.length + " dead)\n");
if(live.length > 0) {