此目录的最大大小由配置设置max_wal_size定义。数据库将按计划刷新这些事务日志，它通过一种称为检查点...
Postgres 中的 max_wal_size 参数被描述为软限制,以帮助防止 WAL 变得太大。默认值为 1024 MB(参数以 MB 为单位设置。)这并不是很多。 当达到这个值时,它基本上会向 Postgres 发出信号,要求其执行检查点并将缓冲区中的所有数据刷新到磁盘。一旦检查点完成,那些本来可以在缓冲区中的数据的 WAL 段就可以被删除...
postgres视图pg_setting中max_wal_size的单位是字节(Byte)。 max_wal_size是PostgreSQL数据库中用于配置WAL(Write-Ahead Logging)的参数之一,用于控制WAL文件的最大大小。WAL是一种日志记录机制,用于持久化数据的变化操作,保证数据库的事务持久性和可恢复性。 该参数的单位是字节,表示WAL文件的最大大小。当...
问Postgres max_wal_size和wal_keep_size参数ENwal全称是write ahead log，是postgresql中的online redo ...
此目录的最大大小由配置设置max_wal_size定义。数据库将按计划刷新这些事务日志，它通过一种称为检查点...
wal_keep_segments and max_wal_size From Atul Kumar Date: 05 July 2021, 11:15:09 hi, (on postgres 9.6) I was just practicing to make my no. of wal files in pg_xlog directory to be the same/equal as I pass on wal_keep_segments paramater. say for example show wal_keep_segments;...
84 82 # limit min WAL size 85 83 # reason: prefer file recycling 86 - min_wal_size = 1GB 84 + min_wal_size = ${toString postgresMinWalSizeGb}GB 85 + 86 + # increase max WAL size 87 + # reason: reduce checkpoint frequency 88 + max_wal_size = ${toString postgresMax...
postgresql 复制延迟-超过max_slot_wal_keep_size，未删除WAL段这是一个PostgreSQL的bug，它是fixed。
max_wal_size = 4GB max_worker_processes = 4 max_parallel_workers_per_gather = 2 max_locks_per_transaction = 384 but we tried with work_mem to 130mb, shared_buffer to a maximum fo 40gb, effective_cache to 4gb shared memory limits are very big: ...
wal_receiver_status_interval = 1s # send replies at least this often hot_standby_feedback = on # send info from standby to prevent random_page_cost = 1.0 # same scale as above effective_cache_size = 10240MB log_destination = 'csvlog' # Valid values are combinations of ...