public override void Merge(IndexWriter writer, MergeTrigger trigger, bool newMergesFound)
{
using (_lock.Write())
{
_writer = writer;
_directory = writer.Directory;
if (Verbose)
{
Message("now merge");
Message(" index: " + writer.SegString());
}
// First, quickly run through the newly proposed merges
// and add any orthogonal merges (ie a merge not
// involving segments already pending to be merged) to
// the queue. If we are way behind on merging, many of
// these newly proposed merges will likely already be
// registered.
// Iterate, pulling from the IndexWriter's queue of
// pending merges, until it's empty:
while (true)
{
long startStallTime = 0;
while (writer.HasPendingMerges() && MergeThreadCount >= MaxMergeCount)
{
// this means merging has fallen too far behind: we
// have already created maxMergeCount threads, and
// now there's at least one more merge pending.
// Note that only maxThreadCount of
// those created merge threads will actually be
// running; the rest will be paused (see
// updateMergeThreads). We stall this producer
// thread to prevent creation of new segments,
// until merging has caught up:
startStallTime = Environment.TickCount;
if (Verbose)
{
Message(" too many merges; stalling...");
}
_manualResetEvent.Reset();
_manualResetEvent.Wait();
}
if (Verbose)
{
if (startStallTime != 0)
{
Message(" stalled for " + (Environment.TickCount - startStallTime) + " msec");
}
}
MergePolicy.OneMerge merge = writer.NextMerge();
if (merge == null)
{
if (Verbose)
{
Message(" no more merges pending; now return");
}
return;
}
bool success = false;
try
{
if (Verbose)
{
Message(" consider merge " + writer.SegString(merge.Segments));
}
// OK to spawn a new merge thread to handle this
// merge:
var merger = CreateTask(writer, merge);
merger.MergeThreadCompleted += OnMergeThreadCompleted;
_mergeThreads.Add(merger);
if (Verbose)
{
Message(" launch new thread [" + merger.Name + "]");
}
merger.Start(_taskScheduler);
// Must call this after starting the thread else
// the new thread is removed from mergeThreads
// (since it's not alive yet):
UpdateMergeThreads();
success = true;
}
finally
{
if (!success)
{
writer.MergeFinish(merge);
}
}
}
}
}
public override void Merge(IndexWriter writer, MergeTrigger trigger, bool newMergesFound)
{
lock (this)
{
//Debug.Assert(!Thread.holdsLock(writer));
this.m_writer = writer;
InitMergeThreadPriority();
m_dir = writer.Directory;
// First, quickly run through the newly proposed merges
// and add any orthogonal merges (ie a merge not
// involving segments already pending to be merged) to
// the queue. If we are way behind on merging, many of
// these newly proposed merges will likely already be
// registered.
if (IsVerbose)
{
Message("now merge");
Message(" index: " + writer.SegString());
}
// Iterate, pulling from the IndexWriter's queue of
// pending merges, until it's empty:
while (true)
{
long startStallTime = 0;
while (writer.HasPendingMerges() && MergeThreadCount >= maxMergeCount)
{
// this means merging has fallen too far behind: we
// have already created maxMergeCount threads, and
// now there's at least one more merge pending.
// Note that only maxThreadCount of
// those created merge threads will actually be
// running; the rest will be paused (see
// updateMergeThreads). We stall this producer
// thread to prevent creation of new segments,
// until merging has caught up:
startStallTime = Environment.TickCount;
if (IsVerbose)
{
Message(" too many merges; stalling...");
}
//try
//{
Monitor.Wait(this);
//}
//catch (ThreadInterruptedException ie) // LUCENENET NOTE: Senseless to catch and rethrow the same exception type
//{
// throw new ThreadInterruptedException(ie.ToString(), ie);
//}
}
if (IsVerbose)
{
if (startStallTime != 0)
{
Message(" stalled for " + (Environment.TickCount - startStallTime) + " msec");
}
}
MergePolicy.OneMerge merge = writer.NextMerge();
if (merge == null)
{
if (IsVerbose)
{
Message(" no more merges pending; now return");
}
return;
}
bool success = false;
try
{
if (IsVerbose)
{
Message(" consider merge " + writer.SegString(merge.Segments));
}
// OK to spawn a new merge thread to handle this
// merge:
MergeThread merger = GetMergeThread(writer, merge);
m_mergeThreads.Add(merger);
if (IsVerbose)
{
Message(" launch new thread [" + merger.Name + "]");
}
merger.Start();
// Must call this after starting the thread else
// the new thread is removed from mergeThreads
// (since it's not alive yet):
UpdateMergeThreads();
success = true;
}
finally
{
if (!success)
{
writer.MergeFinish(merge);
}
}
}
}
}
public override void Merge(IndexWriter writer, MergeTrigger trigger, bool newMergesFound)
{
using (_lock.Write())
{
_writer = writer;
_directory = writer.Directory;
if (Verbose())
{
Message("now merge");
Message(" index: " + writer.SegString());
}
// First, quickly run through the newly proposed merges
// and add any orthogonal merges (ie a merge not
// involving segments already pending to be merged) to
// the queue. If we are way behind on merging, many of
// these newly proposed merges will likely already be
// registered.
// Iterate, pulling from the IndexWriter's queue of
// pending merges, until it's empty:
while (true)
{
long startStallTime = 0;
while (writer.HasPendingMerges() && MergeThreadCount() >= MaxMergeCount)
{
// this means merging has fallen too far behind: we
// have already created maxMergeCount threads, and
// now there's at least one more merge pending.
// Note that only maxThreadCount of
// those created merge threads will actually be
// running; the rest will be paused (see
// updateMergeThreads). We stall this producer
// thread to prevent creation of new segments,
// until merging has caught up:
startStallTime = Environment.TickCount;
if (Verbose())
{
Message(" too many merges; stalling...");
}
_manualResetEvent.Reset();
_manualResetEvent.Wait();
}
if (Verbose())
{
if (startStallTime != 0)
{
Message(" stalled for " + (Environment.TickCount - startStallTime) + " msec");
}
}
MergePolicy.OneMerge merge = writer.NextMerge;
if (merge == null)
{
if (Verbose())
{
Message(" no more merges pending; now return");
}
return;
}
bool success = false;
try
{
if (Verbose())
{
Message(" consider merge " + writer.SegString(merge.Segments));
}
// OK to spawn a new merge thread to handle this
// merge:
var merger = CreateTask(writer, merge);
merger.MergeThreadCompleted += OnMergeThreadCompleted;
_mergeThreads.Add(merger);
if (Verbose())
{
Message(" launch new thread [" + merger.Name + "]");
}
merger.Start(_taskScheduler);
// Must call this after starting the thread else
// the new thread is removed from mergeThreads
// (since it's not alive yet):
UpdateMergeThreads();
success = true;
}
finally
{
if (!success)
{
writer.MergeFinish(merge);
}
}
}
}
}
