private void UpdateCascadeReferencingCollection(ReferencingCollectionSetting rc, ReferencingCollectionOperation co)
{
co.StartedDate = DateTime.UtcNow;
co.Status = UpdateCascadeOperationStatus.Executing;
co.UpdatedDocumentCount = 0;
SaveOperationSilentlyIgnoringError(); // we can continue anyway
log.Trace("Update cascade {0} referencing document collection for update cascade operation {1} started", rc.ReferencingEntityName, operation.Id);
try
{
int updatedByIndex = 0;
Guid lastEtag;
do
{
lastEtag = db.GetLastEtag();
var query = new IndexQuery
{
CutoffEtag = lastEtag,
Query = string.Format("{0}:{1} AND {2}:{3}NULL TO {4}{5}", rc.ReferencedIdPropertyNameInIndex, RavenQuery.Escape(referencedDoc.Key),
rc.ReferencedEtagPropertyNameInIndex, "{", RavenQuery.Escape(Convert.ToString(referencedDoc.Etag, CultureInfo.InvariantCulture)), "}")
};
updatedByIndex = db.UpdateByIndex(rc.IndexName, query, doc => UpdateDocumentWithProgressReport(doc, co),
TimeSpan.FromHours(8), cancellationToken, null);
} while (updatedByIndex > 0);
db.UpdateDocumentsAfter(lastEtag, UpdateDocument, cancellationToken, null);
co.Status = UpdateCascadeOperationStatus.CompletedSuccessfully;
log.Trace("Update cascade {0} documents for operation {1} completed successfully. {2} documents have been updated in {3}", rc.ReferencingEntityName, operation.Id, co.UpdatedDocumentCount, co.ElapsedTime);
}
catch (OperationCanceledException) // save the operation and rethrow
{
co.Status = UpdateCascadeOperationStatus.Canceled;
throw;
}
catch (Exception ex) // Log the error, save the operation, and move to the next.
{
co.ErrorMessage = ex.Message;
co.Status = UpdateCascadeOperationStatus.Failed;
log.ErrorException(string.Format("Update cascade {0} documents for operation {1} failed miserably. Moving on the next one ...", rc.ReferencingEntityName, operation.Id), ex);
}
finally
{
co.CompletedDate = DateTime.UtcNow;
if (!(services.IsShutDownInProgress && co.Status == UpdateCascadeOperationStatus.Canceled))
{
SaveOperationSilentlyIgnoringError(); // we want to preserve OperationCanceledException.
}
}
}
public void RestartNotCompletedOperations()
{
var lastEtag = db.GetLastEtag();
db.WaitForIndexNotStale(UpdateCascadeOperation.ByStatusIndexName, null, lastEtag, TimeSpan.FromHours(1), CancellationToken.None);
var indexQuery = new IndexQuery
{
CutoffEtag = lastEtag,
PageSize = 1024,
Query = "Status:Pending OR Status:Executing"
};
IList <string> docIds = null;
int restartedOperations = 0;
do
{
docIds = db.QueryDocumentIds(UpdateCascadeOperation.ByStatusIndexName, indexQuery, CancellationToken.None);
indexQuery.Start += docIds.Count;
db.TransactionalStorage.Batch(_ =>
{
foreach (var id in docIds)
{
var operation = repository.Get(id);
JsonDocument referenceDocument = null;
if (operation != null)
{
referenceDocument = db.Get(operation.ReferencedDocId, null);
}
if (operation != null && referenceDocument != null && TryStartOperation(operation, referenceDocument))
{
restartedOperations++;
log.Debug("Operation {0} has been restarted after a reboot. {1} operations restarted so far", id, restartedOperations);
}
}
});
} while (docIds.Count == indexQuery.PageSize);
}
