执行的SQL语句。 log_duration = off 记录每条SQL语句执行完成消耗的时间，将此配置设置为on, 用于统计哪些SQL语句耗时较长。 记录校验点的信息 log_checkpoints = on log_connections = off 是否记录连接日志 2018年PostgreSQL中国技术大会 微信号：laohouzi999 3.PostgreSQL连接问题 max_wal_size Maximum size to let the WAL grow to between automatic WAL checkpoints. checkpoint_timeout Maximum time between automatic WAL checkpoints 提高max_wal_size和checkpoint_timeout的值可以减少校验点发生的 频率 2018年PostgreSQL中国技术大会

arget Specifies the target of checkpoint completion, as a fraction of the total time between checkpoints. The default is 0.5. You can set this parameter only in the postgresql.conf file or on the server 32 local, system, reload checkpoint_timeout Specifies the maximum time between automatic WAL checkpoints. If you specify this value without units, it is taken as seconds. The valid range is between 30 filled more frequently than the specified value. Greenplum writes a message to the server log if checkpoints caused by the filling of WAL segment files happen closer together than this amount of time (which

local_preload_libraries 1937 lock_timeout 1937 log_autostats 1938 log_connections 1938 log_checkpoints 1938 log_disconnections 1938 log_dispatch_stats 1938 log_duration 1939 log_error_verbosity for column-oriented tables. VMware Greenplum 6 Documentation VMware by Broadcom 144 The log_checkpoints server configuration parameter is now set to on by default. The gpsupport gp_log_collector tool problem. Value Range Default Set Classifications Boolean off local, system, reload log_checkpoints Causes checkpoints and restartpoints to be logged in the server log. Some statistics are included in the

this). CHECK_POINT_SEGMENTS Required. Maximum distance between automatic write ahead log (WAL) checkpoints, in log file segments (each segment is normally 16 megabytes). This will set the checkpoint_segments

this). CHECK_POINT_SEGMENTS Required. Maximum distance between automatic write ahead log (WAL) checkpoints, in log file segments (each segment is normally 16 megabytes). This will set the checkpoint_segments

this). CHECK_POINT_SEGMENTS Required. Maximum distance between automatic write ahead log (WAL) checkpoints, in log file segments (each segment is normally 16 megabytes). This will set the checkpoint_segments

this). CHECK_POINT_SEGMENTS Required. Maximum distance between automatic write ahead log (WAL) checkpoints, in log file segments (each segment is normally 16 megabytes). This will set the checkpoint_segments

this). CHECK_POINT_SEGMENTS Required. Maximum distance between automatic write ahead log (WAL) checkpoints, in log file segments (each segment is normally 16 megabytes). This will set the checkpoint_segments