Details
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Improvement
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Resolution: Duplicate
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Major
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1.8.1, 2.0
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Security Level: Public
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None
Description
When updating items in heavy DGM (40% resident), the disk drain is slower than draining of new items.
Ex:
500 items per second for new items, but only 300 for updates.
Loading 20K items into a cluster of 2 nodes at 250 ops with 1 replica.
We loaded 500K items, pushing the resident ratio down to 40%, then updated the same 500K items, during this update phase the disk drain rate dropped down to 60% of what it was before.