max_wal_senders = 2 # max number of walsender processes # (change requires restart) #wal_keep_segments = 0 # in logfile segments; 0 disables #wal_sender_timeout = 60s # in milliseconds; 0 disables 1. 2. 3. 4. 5. 6. 7. max_wal_senders:开启流复制后,向备用服务器发送wal日志的最...
max_wal_senders = 2 # max number of walsender processes 这个设置了可以最多有几个流复制连接,几个并发的standby数据库就设置几个 wal_keep_segments = 256 设置流复制保留的最多的xlog数目,不要设置太小导致WAL日志还没有来得及传送到standby就被覆盖。一个WAL文件默认16M hot_standby = on # "on" allow...
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; wal_keep_segments --- 125 so I want my wal files should not be grow in numbers ...
FPI:818153164 [93.75%] wal膨胀了 15倍 调优参数 altersystemsetwal_compression=on;altersystemsetcheckpoint_completion_target=0.9;altersystemsetmin_wal_size='1GB';altersystemsetmax_wal_size='4GB';altersystemsetwal_keep_segments=1000;altersystemsetcheckpoint_timeout='20min'; [pg@sdbserver1bin]$ psql...
当随着时间的推移，xlog目录会越来越大，网上有些方法是先停机然后再删除，但我不想停机删除，那么如何优雅清理xlog日志呢？方法：1.登录到postgres中查看当前的wal_keep_segments 2.在 postgres.conf中修改 降低wal_keep_segments的值，本案例中降低到512 3.重载 postgres配置文件 5.想要立刻见效，可以...
wal_level=hot_standby 主从设置为热血模式,流复制必选 max_wal_senders=2流复制允许连接进程 wal_keep_segments=64max_connections=100默认参数,非主从配置相关参数,表示到数据库的连接数 从节点: 从库安装完成后,不初始化,若已经初始化,删除其data目录 ...
Describe the bug i upgraded the crunchy postgresl cluster from 12.4 to 13.1 version A clear and concise description of what the bug is. After upgrade postgresql is not running due to the error "unrecognized configuration parameter "wal_k...
wal_keep_segments = 50 # in logfile segments; 0 disables wal_level = replica # minimal, replica, or logical wal_log_hints = on # also do full page writes of non-critical updates 4. Restart postgres services: postgres$/usr/pgsql-14/bin/pg_ctl stop -D /oracle/pg_datapostgres$/usr/...
在基于流复制的集群中,可以调整wal_keep_segments参数来控制主节点保留事务日志的数量,这对于从节点能够及时获取事务日志进行数据更新有一定的影响。在Pgpool II集群中,可以根据实际的负载情况优化负载均衡的算法,以达到更好的性能分配效果。在Patroni+etcd集群中,可以优化etcd的配置,如调整其存储容量、心跳检测时间等...
修改配置文件 vim postgresql.conf wal_level = hot_standby # 修改WAL日志信息的输出级别 max_wal_senders = 10 # 设置最大的...WAL发送进程数量,一个流复制的备库通常只消耗主库一个发送进程,必须小于max_connections wal_keep_segments = 512 # 设置WAL日志文件的保留数量,默认单个...变为recovery.done...