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new e99077698d4 [fix](cloud) modify
delete_bitmap_store_v2_max_bytes_in_fdb (#67494)
e99077698d4 is described below
commit e99077698d4c42d516ba9a60fd1d492ba3facc44
Author: meiyi <[email protected]>
AuthorDate: Mon Sep 14 16:04:18 2026 +0800
[fix](cloud) modify delete_bitmap_store_v2_max_bytes_in_fdb (#67494)
In test, a 64 KiB threshold reduces performance by 6% for large bitmaps,
while 128 KiB shows no measurable slowdown. And consider
split_size(90000) in blob_put, set to 89000.
---
be/src/cloud/config.cpp | 3 ++-
1 file changed, 2 insertions(+), 1 deletion(-)
diff --git a/be/src/cloud/config.cpp b/be/src/cloud/config.cpp
index b8475ef888d..614baa31e9b 100644
--- a/be/src/cloud/config.cpp
+++ b/be/src/cloud/config.cpp
@@ -88,7 +88,8 @@ DEFINE_mBool(enable_sync_tablet_delete_bitmap_by_cache,
"true");
DEFINE_mInt32(delete_bitmap_store_write_version, "1");
DEFINE_mInt32(delete_bitmap_store_read_version, "1");
DEFINE_mBool(enable_delete_bitmap_store_v2_check_correctness, "false");
-DEFINE_mInt64(delete_bitmap_store_v2_max_bytes_in_fdb, "1024"); // TODO change
default value
+// Leave room for DeleteBitmapStoragePB overhead to fit within blob_put's
90000-byte split size.
+DEFINE_mInt64(delete_bitmap_store_v2_max_bytes_in_fdb, "89000");
DEFINE_Int32(sync_delete_bitmap_task_max_thread, "32");
DEFINE_mBool(enable_agg_delta_delete_bitmap_for_store_v2, "true");
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