From 39c4987a26c227e449cfb64c86d64feaed6ea86e Mon Sep 17 00:00:00 2001
From: lihangyu <15605149486@163.com>
Date: Thu, 24 Oct 2024 20:13:57 +0800
Subject: [PATCH] [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 6dff0a28dbcf8f..7cc70cc5ad2982 100644
--- a/be/src/common/config.cpp
+++ b/be/src/common/config.cpp
@@ -1089,8 +1089,8 @@ 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, "40");
-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");