public static void Clean(int deletionBatchSize, DocumentDatabase database, DateTime expiryThreshold)
{
var stopwatch = Stopwatch.StartNew();
var items = new List <ICommandData>(deletionBatchSize);
try
{
var query = new IndexQuery
{
Start = 0,
DisableCaching = true,
Cutoff = SystemTime.UtcNow,
PageSize = deletionBatchSize,
Query = $"LastModified:[* TO {expiryThreshold.Ticks}]",
FieldsToFetch = new[]
{
"__document_id",
},
SortedFields = new[]
{
new SortedField("LastModified")
{
Field = "LastModified",
Descending = false
}
}
};
var indexName = new ExpirySagaAuditIndex().IndexName;
database.Query(indexName, query, database.WorkContext.CancellationToken,
doc =>
{
var id = doc.Value <string>("__document_id");
if (string.IsNullOrEmpty(id))
{
return;
}
items.Add(new DeleteCommandData
{
Key = id
});
});
}
catch (OperationCanceledException)
{
//Ignore
}
var deletionCount = 0;
Chunker.ExecuteInChunks(items.Count, (s, e) =>
{
logger.InfoFormat("Batching deletion of {0}-{1} sagahistory documents.", s, e);
var results = database.Batch(items.GetRange(s, e - s + 1), CancellationToken.None);
logger.InfoFormat("Batching deletion of {0}-{1} sagahistory documents completed.", s, e);
deletionCount += results.Count(x => x.Deleted == true);
});
if (deletionCount == 0)
{
logger.Info("No expired sagahistory documents found");
}
else
{
logger.InfoFormat("Deleted {0} expired sagahistory documents. Batch execution took {1}ms", deletionCount, stopwatch.ElapsedMilliseconds);
}
}
public static void Clean(int deletionBatchSize, DocumentDatabase database, DateTime expiryThreshold, CancellationToken token)
{
var stopwatch = Stopwatch.StartNew();
var items = new List <ICommandData>(deletionBatchSize);
try
{
var query = new IndexQuery
{
Start = 0,
DisableCaching = true,
Cutoff = SystemTime.UtcNow,
PageSize = deletionBatchSize,
Query = $"LastModified:[* TO {expiryThreshold.Ticks}]",
FieldsToFetch = new[]
{
"__document_id"
},
SortedFields = new[]
{
new SortedField("LastModified")
{
Field = "LastModified",
Descending = false
}
}
};
var indexName = new ExpirySagaAuditIndex().IndexName;
database.Query(indexName, query, token,
(doc, commands) =>
{
var id = doc.Value <string>("__document_id");
if (string.IsNullOrEmpty(id))
{
return;
}
commands.Add(new DeleteCommandData
{
Key = id
});
}, items);
}
catch (OperationCanceledException)
{
logger.Info("Cleanup operation cancelled");
return;
}
if (token.IsCancellationRequested)
{
return;
}
var deletionCount = Chunker.ExecuteInChunks(items.Count, (itemsForBatch, db, s, e) =>
{
if (logger.IsDebugEnabled)
{
logger.Debug($"Batching deletion of {s}-{e} saga history documents.");
}
var results = db.Batch(itemsForBatch.GetRange(s, e - s + 1), CancellationToken.None);
if (logger.IsDebugEnabled)
{
logger.Debug($"Batching deletion of {s}-{e} saga history documents completed.");
}
return(results.Count(x => x.Deleted == true));
}, items, database, token);
if (deletionCount == 0)
{
logger.Info("No expired saga history documents found");
}
else
{
logger.Info($"Deleted {deletionCount} expired saga history documents. Batch execution took {stopwatch.ElapsedMilliseconds} ms");
}
}
