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fix closed connection during insertMany() #36

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Merged
defbin merged 1 commit into from
Mar 18, 2025
Merged

fix closed connection during insertMany() #36

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4 changes: 3 additions & 1 deletion mongolink/clone.go
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Original file line number Diff line number Diff line change
Expand Up @@ -400,14 +400,16 @@ func (c *Clone) cloneCollection(ctx context.Context, db, coll string) error {
}()

const initialBufferSize = 1000
const maxBufferSize = 10000
docs := make([]any, 0, initialBufferSize)
batch := 1
batchSize := 0

targetColl := c.target.Database(db).Collection(spec.Name)

for cur.Next(ctx) {
if batchSize+len(cur.Current) > config.MaxCollectionCloneBatchSize {
if batchSize+len(cur.Current) > config.MaxCollectionCloneBatchSize ||
len(docs) == maxBufferSize {
_, err = targetColl.InsertMany(ctx, docs)
if err != nil {
return errors.Wrap(err, "insert documents")
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