upstream/postgresql
1
0
Fork 0
mirror of https://github.com/postgres/postgres.git synced 2026-04-24 07:40:59 -04:00
Code Issues Projects Releases Packages Wiki Activity Actions
postgresql/src/bin/pg_basebackup/streamutil.h

25 lines
669 B
C
Raw Normal View History

Implement streaming xlog for backup tools Add option for parallel streaming of the transaction log while a base backup is running, to get the logfiles before the server has removed them. Also add a tool called pg_receivexlog, which streams the transaction log into files, creating a log archive without having to wait for segments to complete, thus decreasing the window of data loss without having to waste space using archive_timeout. This works best in combination with archive_command - suggested usage docs etc coming later.
2011-10-26 14:13:33 -04:00
#include "libpq-fe.h"
extern const char *progname;
Add -d option to pg_basebackup and pg_receivexlog, for connection string. Without this, there's no way to pass arbitrary libpq connection parameters to these applications. It's a bit strange that the option is called -d/--dbname, when in fact you can *not* pass a database name in it, but it's consistent with other client applications where a connection string is also passed using -d. Original patch by Amit Kapila, heavily modified by me.
2013-02-25 07:48:27 -05:00
extern char *connection_string;
Implement streaming xlog for backup tools Add option for parallel streaming of the transaction log while a base backup is running, to get the logfiles before the server has removed them. Also add a tool called pg_receivexlog, which streams the transaction log into files, creating a log archive without having to wait for segments to complete, thus decreasing the window of data loss without having to waste space using archive_timeout. This works best in combination with archive_command - suggested usage docs etc coming later.
2011-10-26 14:13:33 -04:00
extern char *dbhost;
extern char *dbuser;
extern char *dbport;
Add pg_recvlogical, a tool to receive data logical decoding data. This is fairly basic at the moment, but it's at least useful for testing and debugging, and possibly more. Andres Freund
2014-03-18 12:19:57 -04:00
extern char *dbname;
Implement streaming xlog for backup tools Add option for parallel streaming of the transaction log while a base backup is running, to get the logfiles before the server has removed them. Also add a tool called pg_receivexlog, which streams the transaction log into files, creating a log archive without having to wait for segments to complete, thus decreasing the window of data loss without having to waste space using archive_timeout. This works best in combination with archive_command - suggested usage docs etc coming later.
2011-10-26 14:13:33 -04:00
extern int dbgetpassword;
Introduce replication slots. Replication slots are a crash-safe data structure which can be created on either a master or a standby to prevent premature removal of write-ahead log segments needed by a standby, as well as (with hot_standby_feedback=on) pruning of tuples whose removal would cause replication conflicts. Slots have some advantages over existing techniques, as explained in the documentation. In a few places, we refer to the type of replication slots introduced by this patch as "physical" slots, because forthcoming patches for logical decoding will also have slots, but with somewhat different properties. Andres Freund and Robert Haas
2014-01-31 22:45:17 -05:00
extern char *replication_slot;
Implement streaming xlog for backup tools Add option for parallel streaming of the transaction log while a base backup is running, to get the logfiles before the server has removed them. Also add a tool called pg_receivexlog, which streams the transaction log into files, creating a log archive without having to wait for segments to complete, thus decreasing the window of data loss without having to waste space using archive_timeout. This works best in combination with archive_command - suggested usage docs etc coming later.
2011-10-26 14:13:33 -04:00
/* Connection kept global so we can disconnect easily */
extern PGconn *conn;
Standardize naming of malloc/realloc/strdup wrapper functions. We had a number of variants on the theme of "malloc or die", with the majority named like "pg_malloc", but by no means all. Standardize on the names pg_malloc, pg_malloc0, pg_realloc, pg_strdup. Get rid of pg_calloc entirely in favor of using pg_malloc0. This is an essentially cosmetic change, so no back-patch. (I did find a couple of places where psql and pg_dump were using plain malloc or strdup instead of the pg_ versions, but they don't look significant enough to bother back-patching.)
2012-10-02 15:35:10 -04:00
extern PGconn *GetConnection(void);
Add pg_recvlogical, a tool to receive data logical decoding data. This is fairly basic at the moment, but it's at least useful for testing and debugging, and possibly more. Andres Freund
2014-03-18 12:19:57 -04:00
extern int64 feGetCurrentTimestamp(void);
extern void feTimestampDifference(int64 start_time, int64 stop_time,
pgindent run for 9.4 This includes removing tabs after periods in C comments, which was applied to back branches, so this change should not effect backpatching.
2014-05-06 12:12:18 -04:00
long *secs, int *microsecs);
Add pg_recvlogical, a tool to receive data logical decoding data. This is fairly basic at the moment, but it's at least useful for testing and debugging, and possibly more. Andres Freund
2014-03-18 12:19:57 -04:00
extern bool feTimestampDifferenceExceeds(int64 start_time, int64 stop_time,
pgindent run for 9.4 This includes removing tabs after periods in C comments, which was applied to back branches, so this change should not effect backpatching.
2014-05-06 12:12:18 -04:00
int msec);
Add pg_recvlogical, a tool to receive data logical decoding data. This is fairly basic at the moment, but it's at least useful for testing and debugging, and possibly more. Andres Freund
2014-03-18 12:19:57 -04:00
extern void fe_sendint64(int64 i, char *buf);
extern int64 fe_recvint64(char *buf);
Reference in a new issue Copy permalink