/// <summary>Get lists of blocks on the disk sorted by blockId, per blockpool</summary>
private IDictionary <string, DirectoryScanner.ScanInfo[]> GetDiskReport()
{
// First get list of data directories
IList <FsVolumeSpi> volumes = dataset.GetVolumes();
// Use an array since the threads may return out of order and
// compilersInProgress#keySet may return out of order as well.
DirectoryScanner.ScanInfoPerBlockPool[] dirReports = new DirectoryScanner.ScanInfoPerBlockPool
[volumes.Count];
IDictionary <int, Future <DirectoryScanner.ScanInfoPerBlockPool> > compilersInProgress
= new Dictionary <int, Future <DirectoryScanner.ScanInfoPerBlockPool> >();
for (int i = 0; i < volumes.Count; i++)
{
if (IsValid(dataset, volumes[i]))
{
DirectoryScanner.ReportCompiler reportCompiler = new DirectoryScanner.ReportCompiler
(datanode, volumes[i]);
Future <DirectoryScanner.ScanInfoPerBlockPool> result = reportCompileThreadPool.Submit
(reportCompiler);
compilersInProgress[i] = result;
}
}
foreach (KeyValuePair <int, Future <DirectoryScanner.ScanInfoPerBlockPool> > report in
compilersInProgress)
{
try
{
dirReports[report.Key] = report.Value.Get();
}
catch (Exception ex)
{
Log.Error("Error compiling report", ex);
// Propagate ex to DataBlockScanner to deal with
throw new RuntimeException(ex);
}
}
// Compile consolidated report for all the volumes
DirectoryScanner.ScanInfoPerBlockPool list = new DirectoryScanner.ScanInfoPerBlockPool
();
for (int i_1 = 0; i_1 < volumes.Count; i_1++)
{
if (IsValid(dataset, volumes[i_1]))
{
// volume is still valid
list.AddAll(dirReports[i_1]);
}
}
return(list.ToSortedArrays());
}
/// <summary>
/// Merges
/// <paramref name="that"/>
/// ScanInfoPerBlockPool into this one
/// </summary>
public virtual void AddAll(DirectoryScanner.ScanInfoPerBlockPool that)
{
if (that == null)
{
return;
}
foreach (KeyValuePair <string, List <DirectoryScanner.ScanInfo> > entry in that)
{
string bpid = entry.Key;
List <DirectoryScanner.ScanInfo> list = entry.Value;
if (this.Contains(bpid))
{
//merge that per-bpid linked list with this one
Sharpen.Collections.AddAll(this[bpid], list);
}
else
{
//add that new bpid and its linked list to this
this[bpid] = list;
}
}
}