is not None: if success and on_safepoint: on_safepoint() return success, True # We can skip safepoint detection if we don't have a callback if on_safepoint: # Wait for our connection to terminate so we can be sure that no new connections are being initiated self._wait_for_connection...
PostgreSQL is a powerful, open source object-relational database system with over 35 years of active development that has earned it a strong reputation for reliability, feature robustness, and performance. There is a wealth of information to be found describing how toinstallandusePostgreSQL through ...
public static void main(String[] args) { String url = "jdbc:postgresql://[ip]:[port]/[dbName]?sslmode=disable"; String driver = "org.postgresql.Driver"; String user = "test"; String pass = "test"; try { Class.forName(driver); System.out.println("开始连接...!"); Connection conn...
PerformAuthentication函数用于认证远端客户端,其am_walsender分支代码如下所示,用于组装log消息。 if(Log_connections){StringInfoDatalogmsg;initStringInfo(&logmsg);if(am_walsender)appendStringInfo(&logmsg,_("replication connection authorized: user=%s"),port->user_name);elseappendStringInfo(&logmsg,_("...
在管理 Odoo 系统时,您可能会遇到一个常见的错误信息:psycopg2.pool.PoolError: The Connection Pool Is Full。这个错误通常表明 Odoo 试图从数据库连接池中获取一个新的连接,但连接池已满,没有可用的连接。幸运的是,通过增加数据库的最大连接数,我们可以解决这个问题。
Used to signal the need for new connections//a goroutine running connectionOpener() reads on this chan and//maybeOpenNewConnections sends on the chan (one send per needed connection)//It is closed during db.Close(). The close tells the connectionOpener//goroutine to exit.openerCh chan...
#connection_life_time = 0 # Connection to backend closes after being idle for this many seconds # 0 means no close #client_idle_limit = 0 # Client is disconnected after being idle for that many seconds # (even inside an explicit transactions!) # 0 means no disconnection #--- # ...
Postgresql类构造函数中,首先设置self._state成员为stopped,如果调用is_running函数判定postmaster存活,则设置self._state成员为running。 Postgresql类_cluster_info_state_get函数获取失败时,如果is_starting返回false,且pg_isready函数返回STATE_REJECT,则设置self._state...
* Signal to terminate a backend process. This is allowed if you are a member * of the role whose process is being terminated. * * Note that only superusers can signal superuser-owned processes. */Datum pg_terminate_backend(PG_FUNCTION_ARGS) ...
true by default connlimit: -1 # optional, database connection limit, default -1 disable limit pool_auth_user: dbuser_meta # optional, all connection to this pgbouncer database will be authenticated by this user pool_mode: transaction # optional, pgbouncer pool mode at database level, ...