uuwaf for low memory

docker/docker-compose.yml

@@ -47,6 +47,7 @@ services:
    volumes:
      - wafshared:/docker-entrypoint-initdb.d
      - wafdata:/var/lib/mysql
+     - ./low-memory-my.cnf:/etc/mysql/my.cnf
    environment:
      - TZ=Asia/Shanghai
      - INIT_ROCKSDB

docker/low-memory-my.cnf

@@ -0,0 +1,64 @@
+# For advice on how to change settings please see
+# http://dev.mysql.com/doc/refman/5.7/en/server-configuration-defaults.html
+
+[mysqld]
+#
+# Remove leading # and set to the amount of RAM for the most important data
+# cache in MySQL. Start at 70% of total RAM for dedicated server, else 10%.
+# innodb_buffer_pool_size = 128M
+#
+# Remove leading # to turn on a very important data integrity option: logging
+# changes to the binary log between backups.
+# log_bin
+#
+# Remove leading # to set options mainly useful for reporting servers.
+# The server defaults are faster for transactions and fast SELECTs.
+# Adjust sizes as needed, experiment to find the optimal values.
+# join_buffer_size = 128M
+# sort_buffer_size = 2M
+# read_rnd_buffer_size = 2M
+skip-host-cache
+skip-name-resolve
+datadir=/var/lib/mysql
+socket=/var/lib/mysql/mysql.sock
+secure-file-priv=/var/lib/mysql-files
+user=mysql
+
+# Disabling symbolic-links is recommended to prevent assorted security risks
+symbolic-links=0
+
+log-error=/var/log/mysqld.log
+pid-file=/var/run/mysqld/mysqld.pid
+
+
+#### These optimize the memory use of MySQL
+#### http://www.tocker.ca/2014/03/10/configuring-mysql-to-use-minimal-memory.html
+innodb_buffer_pool_size=5M
+innodb_log_buffer_size=256K
+query_cache_size=0
+max_connections=10
+key_buffer_size=8
+thread_cache_size=0
+host_cache_size=0
+innodb_ft_cache_size=1600000
+innodb_ft_total_cache_size=32000000
+
+# per thread or per operation settings
+thread_stack=131072
+sort_buffer_size=32K
+read_buffer_size=8200
+read_rnd_buffer_size=8200
+max_heap_table_size=16K
+tmp_table_size=1K
+bulk_insert_buffer_size=0
+join_buffer_size=128
+net_buffer_length=1K
+innodb_sort_buffer_size=64K
+
+#settings that relate to the binary log (if enabled)
+binlog_cache_size=4K
+binlog_stmt_cache_size=4K
+
+#### from https://mariadb.com/de/node/579
+performance_schema = off
+