show logging_collector;--启动日志收集 show log_directory;--日志输出路径 show log_filename;--日志文件名 show log_truncate_on_rotation;--当生成新的文件时如果文件名已存在,是否覆盖同名旧文件名 show log_statement;--设置日志记录内容 show log_min_duration_statement;--运行XX毫秒的语句会被记录到日志...
2.log_directory = 'pg_log' --- 日志文件目录,默认是PGDATA的相对路径,即{PGDATA}/pg_log,也可以改为绝对路径 3.log_filename = 'postgresql-%Y-%m-%d_%H%M%S.log' --- 日志文件命名形式,其中格式化格式与linux date格式化相同。 4.log_rotation_age = 1d --- 单个日志文件的生存期,默认1天,在日...
postgres=# show config_file; config_file --- /var/lib/pgsql/9.4/data/postgresql.conf 查看数据文件目录 postgres=# show data_directory; data_directory --- /var/lib/pgsql/9.4/data 5. 准备修改主库的参数文件,先查询一下pg_hba.conf已有的参数内容 $ cat pg_hba.conf|grep -v '^#' local a...
select * from pg_tables; SHOW data_directory; --查看默认数据文件路径 二、系统维护常用命令 修改配置文件postgresql.conf后,生效的两种方式: 1.pg_ctl reload 2.select pg_reload_conf(); 能生效的不需要重启服务器。 切换日志文件 select pg_rotate_logfile(); PostgreSQL手动切换WAL日志的命令: 在PG10之前...
postgres=# SHOW data_directory; 输出目录信息 data_directory ---/media/data/pgdata/12/main(1 行记录)postgres=# 为数据库用户postgres设置密码 postgres=# password postgres; 允许5432端口通过防火墙,具体需要确认用的什么防火墙规则,我这里ufw未启用,用的是iptables sudo iptables -I INPUT -p tcp --d...
[postgres@shawnyan log]$ export PGCLIENTENCODING=EUC_TW [postgres@shawnyan log]$ psql psql (15.2) Type "help" for help. (shawnyan@192) [shawnyan] 10:52:24# show client_encoding ; client_encoding --- EUC_TW (1 row) 8. PGOPTIONS...
log output to logging collector process HINT: Future log output will appear in directory "pg_log". Done. ALTERNODE coord1 WITH (HOST='192.168.1.108', PORT=25432); ALTER NODE CREATE NODE coord2 WITH (TYPE='coordinator', HOST='192.168.1.109', PORT=25432); CREATE NODE CREATE NODE ...
(trace_sort) elog(LOG, "starting merge pass of %d input runs on %d tapes, " INT64_FORMAT " KB of memory for each input tape: %s", state->nInputRuns, state->nInputTapes, input_buffer_size / 1024, pg_rusage_show(&state->ru_start)); #endif /* Prepare the new input tapes for ...
log_checkpoints = ON Checkpointsare an important part of a Postgres server’s lifecycle. They represent the moment when the Write Ahead Log (WAL) is synchronized to the Postgres data directory. Checkpoints are I/O intensive events, but recent checkpoints also help with server r...
数据可以使用INSERT INTO语句。具体步骤如下: 1. 创建一个包含要插入数据的临时表,该表的结构应与目标表一致。可以使用CREATE TABLE语句创建临时表。 2. 使用INSERT I...