private void CompleteScavengeWithStats(IncompleteScavengeStats incompleteScavengeStats)
{
var log = CreateLogInternal(incompleteScavengeStats.ScavengeId);
log.ScavengeCompleted(ScavengeResult.Failed,
"The node was restarted.",
incompleteScavengeStats.TimeTaken,
incompleteScavengeStats.SpaceSaved,
incompleteScavengeStats.MaxChunkScavenged);
}
private void GatherIncompleteScavengeStats(long from, IncompleteScavengeStats incompleteScavengeStats)
{
_ioDispatcher.ReadBackward(incompleteScavengeStats.ScavengeStream, from, 50, true, SystemAccounts.System,
readResult => {
if (readResult.Result != ReadStreamResult.Success &&
readResult.Result != ReadStreamResult.NoStream)
{
Log.Debug("Unable to read {stream} for scavenge log clean up. Result: {result}",
incompleteScavengeStats.ScavengeStream, readResult.Result);
return;
}
foreach (var ev in readResult.Events)
{
if (ev.ResolveResult == ReadEventResult.Success)
{
var dictionary = ev.Event.Data.ParseJson <Dictionary <string, object> >();
if (ev.Event.EventType == SystemEventTypes.ScavengeChunksCompleted ||
ev.Event.EventType == SystemEventTypes.ScavengeMergeCompleted ||
ev.Event.EventType == SystemEventTypes.ScavengeIndexCompleted)
{
if (dictionary.TryGetValue("spaceSaved", out var spaceSavedEntry))
{
incompleteScavengeStats.SpaceSaved += (int)spaceSavedEntry;
}
if (dictionary.TryGetValue("timeTaken", out var timeTakenEntry))
{
incompleteScavengeStats.TimeTaken += TimeSpan.Parse(timeTakenEntry.ToString());
}
if (ev.Event.EventType == SystemEventTypes.ScavengeChunksCompleted)
{
if (dictionary.TryGetValue("chunkEndNumber", out var chunkEndNumberEntry))
{
incompleteScavengeStats.MaxChunkScavenged = Math.Max(incompleteScavengeStats.MaxChunkScavenged, (int)chunkEndNumberEntry);
}
}
}
}
}
if (readResult.IsEndOfStream || readResult.Events.Length == 0)
{
CompleteScavengeWithStats(incompleteScavengeStats);
}
else
{
GatherIncompleteScavengeStats(readResult.NextEventNumber, incompleteScavengeStats);
}
});
}