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new 220744e928b [Opt](config) adjust segment cache (#42308)
220744e928b is described below
commit 220744e928b4b6a2f78ca08b16c6389cc620f2d4
Author: lihangyu <15605149...@163.com>
AuthorDate: Thu Oct 24 20:13:57 2024 +0800
[Opt](config) adjust segment cache (#42308)
For wide tables the default segment cache capacity is relatively small
and lead to many cache eviction in high compaction/query load
---
be/src/common/config.cpp | 4 ++--
1 file changed, 2 insertions(+), 2 deletions(-)
diff --git a/be/src/common/config.cpp b/be/src/common/config.cpp
index ca339ae574e..31170b731f4 100644
--- a/be/src/common/config.cpp
+++ b/be/src/common/config.cpp
@@ -1072,8 +1072,8 @@ DEFINE_mInt32(schema_cache_sweep_time_sec, "100");
// max number of segment cache, default -1 for backward compatibility
fd_number*2/5
DEFINE_Int32(segment_cache_capacity, "-1");
DEFINE_Int32(segment_cache_fd_percentage, "20");
-DEFINE_mInt32(estimated_mem_per_column_reader, "1024");
-DEFINE_Int32(segment_cache_memory_percentage, "2");
+DEFINE_mInt32(estimated_mem_per_column_reader, "512");
+DEFINE_Int32(segment_cache_memory_percentage, "5");
// enable feature binlog, default false
DEFINE_Bool(enable_feature_binlog, "false");
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