public void EnsureCommitted()
{
if (_metadataForNextCommit == null)
{
// this means no changes have been made to the index - no need to commit
_logger.LogInformation(string.Format("SKIP COMMIT No changes. Index contains {0} documents.", _indexWriter.NumDocs()));
return;
}
_indexWriter.ExpungeDeletes();
_indexWriter.Commit(_metadataForNextCommit.ToDictionary());
_logger.LogInformation("COMMIT index contains {0} documents. Metadata: commitTimeStamp {CommitTimeStamp}; change count {ChangeCount}; trace {CommitTrace}",
_indexWriter.NumDocs(), _metadataForNextCommit.CommitTimeStamp.ToString("O"), _metadataForNextCommit.Count, _metadataForNextCommit.Trace);
_metadataForNextCommit = null;
}
private async Task CommitIndexAsync()
{
// This method commits to the index synchronously and may hang. Yield the current context to allow cancellation.
await Task.Yield();
using (_telemetryService.TrackIndexCommitDuration())
{
_logger.LogInformation("COMMITTING index contains {0} documents. Metadata: commitTimeStamp {CommitTimeStamp}; change count {ChangeCount}; trace {CommitTrace}",
_indexWriter.NumDocs(), _metadataForNextCommit.CommitTimeStamp.ToString("O"), _metadataForNextCommit.Count, _metadataForNextCommit.Trace);
_indexWriter.ExpungeDeletes();
_indexWriter.Commit(_metadataForNextCommit.ToDictionary());
_logger.LogInformation("COMMIT index contains {0} documents. Metadata: commitTimeStamp {CommitTimeStamp}; change count {ChangeCount}; trace {CommitTrace}",
_indexWriter.NumDocs(), _metadataForNextCommit.CommitTimeStamp.ToString("O"), _metadataForNextCommit.Count, _metadataForNextCommit.Trace);
_metadataForNextCommit = null;
}
}