【fix】 控制mysql占用内存在150mb左右

client-k8s.yaml

@@ -122,10 +122,10 @@ spec:
           resources:
             limits:
               cpu: 500m
-              memory: 512Mi
+              memory: 256Mi
             requests:
               cpu: 500m
-              memory: 512Mi
+              memory: 256Mi
           volumeMounts:
             - name: mysql-data
               mountPath: /var/lib/mysql
@@ -437,16 +437,33 @@ data:
 
     skip-name-resolve
 
-    max_connections=1000
+    max_connections=100
+    
+    thread_cache_size=10
+
+    innodb_buffer_pool_chunk_size=64M #效果不明显
+    innodb_buffer_pool_size=64M #效果不明显
   
     lower_case_table_names=0
     
+    table_open_cache=64
+    
+    query_cache_type=0
+    
+    query_cache_size=0
+    
+    key_buffer_size=0    
+
     default-time-zone='+08:00'
 
     sql_mode='STRICT_TRANS_TABLES,NO_ZERO_IN_DATE,NO_ZERO_DATE,ERROR_FOR_DIVISION_BY_ZERO,NO_ENGINE_SUBSTITUTION'
 
     log_timestamps='SYSTEM'
 
+    performance_schema_max_table_instances=400 #设置效果不明显
+    table_definition_cache=400
+    performance_schema=off #效果明显
+    
     slow_query_log=ON
 
 
@@ -454,5 +471,5 @@ data:
 
     innodb_flush_log_at_trx_commit=2
 
-    group_concat_max_len=1024
+    group_concat_max_len=512