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fix(builder): put the upper limit on reallocation #1748

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Sep 23, 2021
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fix(builder): put the upper limit on reallocation #1748

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6 changes: 5 additions & 1 deletion table/builder.go
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Original file line number Diff line number Diff line change
Expand Up @@ -100,8 +100,12 @@ type Builder struct {
func (b *Builder) allocate(need int) []byte {
bb := b.curBlock
if len(bb.data[bb.end:]) < need {
// We need to reallocate.
// We need to reallocate. 1GB is the max size that the allocator can allocate.
// While reallocating, if doubling exceeds that limit, then put the upper bound on it.
sz := 2 * len(bb.data)
if sz > (1 << 30) {
sz = 1 << 30
}
if bb.end+need > sz {
sz = bb.end + need
}
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