#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日志的最大进程数。 wal_keep_segments:指定pg_wal目录中保存wal日志的最小数量。 wal_sender_timeou...
max_wal_senders = 2 #流复制在没有基于文件的连续归档时,主服务器可能在备机收到WAL日志前回收这些旧的WAL,此时备机需要重新从一个新的基础备份初始化;可设置wal_keep_segments为一个足够高的值来确保旧的WAL段不会被太早重用;1个WAL日志为16MB,所以在设置wal_keep_segments时,在满足空间的前提下可以尽量设置...
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...
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，可以手动执行checkpoint pg归档的删除方法 删除0000001D0000000000000054 之前的归档 ...
问Postgres max_wal_size和wal_keep_size参数ENwal全称是write ahead log，是postgresql中的online redo ...
wal_level= hot_standby# 这个是设置主为wal的主机max_wal_senders=32# 这个设置了可以最多有几个流复制连接,差不多有几个从,就设置几个wal_keep_segments=256# 设置流复制保留的最多的xlog数目wal_sender_timeout=60s # 设置流复制主机发送数据的超时时间max_connections=100# 这个设置要注意下,从库的max_...
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...
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/...