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path: root/src/bin/pg_basebackup/receivelog.c
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Diffstat (limited to 'src/bin/pg_basebackup/receivelog.c')
-rw-r--r--src/bin/pg_basebackup/receivelog.c92
1 files changed, 58 insertions, 34 deletions
diff --git a/src/bin/pg_basebackup/receivelog.c b/src/bin/pg_basebackup/receivelog.c
index 12b34910557..c91cf1bbe86 100644
--- a/src/bin/pg_basebackup/receivelog.c
+++ b/src/bin/pg_basebackup/receivelog.c
@@ -39,7 +39,7 @@
#define STREAMING_KEEPALIVE_SIZE (1+sizeof(PrimaryKeepaliveMessage))
/* fd for currently open WAL file */
-static int walfile = -1;
+static int walfile = -1;
/*
@@ -50,7 +50,8 @@ static int walfile = -1;
* The file will be padded to 16Mb with zeroes.
*/
static int
-open_walfile(XLogRecPtr startpoint, uint32 timeline, char *basedir, char *namebuf)
+open_walfile(XLogRecPtr startpoint, uint32 timeline, char *basedir,
+ char *namebuf)
{
int f;
char fn[MAXPGPATH];
@@ -66,7 +67,8 @@ open_walfile(XLogRecPtr startpoint, uint32 timeline, char *basedir, char *namebu
f = open(fn, O_WRONLY | O_CREAT | PG_BINARY, S_IRUSR | S_IWUSR);
if (f == -1)
{
- fprintf(stderr, _("%s: could not open WAL segment %s: %s\n"),
+ fprintf(stderr,
+ _("%s: could not open transaction log file \"%s\": %s\n"),
progname, fn, strerror(errno));
return -1;
}
@@ -77,7 +79,8 @@ open_walfile(XLogRecPtr startpoint, uint32 timeline, char *basedir, char *namebu
*/
if (fstat(f, &statbuf) != 0)
{
- fprintf(stderr, _("%s: could not stat WAL segment %s: %s\n"),
+ fprintf(stderr,
+ _("%s: could not stat transaction log file \"%s\": %s\n"),
progname, fn, strerror(errno));
close(f);
return -1;
@@ -86,7 +89,8 @@ open_walfile(XLogRecPtr startpoint, uint32 timeline, char *basedir, char *namebu
return f; /* File is open and ready to use */
if (statbuf.st_size != 0)
{
- fprintf(stderr, _("%s: WAL segment %s is %d bytes, should be 0 or %d\n"),
+ fprintf(stderr,
+ _("%s: transaction log file \"%s\" has %d bytes, should be 0 or %d\n"),
progname, fn, (int) statbuf.st_size, XLogSegSize);
close(f);
return -1;
@@ -98,7 +102,8 @@ open_walfile(XLogRecPtr startpoint, uint32 timeline, char *basedir, char *namebu
{
if (write(f, zerobuf, XLOG_BLCKSZ) != XLOG_BLCKSZ)
{
- fprintf(stderr, _("%s: could not pad WAL segment %s: %s\n"),
+ fprintf(stderr,
+ _("%s: could not pad transaction log file \"%s\": %s\n"),
progname, fn, strerror(errno));
free(zerobuf);
close(f);
@@ -110,7 +115,8 @@ open_walfile(XLogRecPtr startpoint, uint32 timeline, char *basedir, char *namebu
if (lseek(f, SEEK_SET, 0) != 0)
{
- fprintf(stderr, _("%s: could not seek back to beginning of WAL segment %s: %s\n"),
+ fprintf(stderr,
+ _("%s: could not seek to beginning of transaction log file \"%s\": %s\n"),
progname, fn, strerror(errno));
close(f);
return -1;
@@ -119,7 +125,8 @@ open_walfile(XLogRecPtr startpoint, uint32 timeline, char *basedir, char *namebu
}
/*
- * Close the current WAL file, and rename it to the correct filename if it's complete.
+ * Close the current WAL file, and rename it to the correct filename if it's
+ * complete.
*
* If segment_complete is true, rename the current WAL file even if we've not
* completed writing the whole segment.
@@ -131,21 +138,22 @@ close_walfile(char *basedir, char *walname, bool segment_complete)
if (currpos == -1)
{
- fprintf(stderr, _("%s: could not get current position in file %s: %s\n"),
+ fprintf(stderr,
+ _("%s: could not determine seek position in file \"%s\": %s\n"),
progname, walname, strerror(errno));
return false;
}
if (fsync(walfile) != 0)
{
- fprintf(stderr, _("%s: could not fsync file %s: %s\n"),
+ fprintf(stderr, _("%s: could not fsync file \"%s\": %s\n"),
progname, walname, strerror(errno));
return false;
}
if (close(walfile) != 0)
{
- fprintf(stderr, _("%s: could not close file %s: %s\n"),
+ fprintf(stderr, _("%s: could not close file \"%s\": %s\n"),
progname, walname, strerror(errno));
walfile = -1;
return false;
@@ -165,13 +173,14 @@ close_walfile(char *basedir, char *walname, bool segment_complete)
snprintf(newfn, sizeof(newfn), "%s/%s", basedir, walname);
if (rename(oldfn, newfn) != 0)
{
- fprintf(stderr, _("%s: could not rename file %s: %s\n"),
+ fprintf(stderr, _("%s: could not rename file \"%s\": %s\n"),
progname, walname, strerror(errno));
return false;
}
}
else
- fprintf(stderr, _("%s: not renaming %s, segment is not complete.\n"),
+ fprintf(stderr,
+ _("%s: not renaming \"%s\", segment is not complete.\n"),
progname, walname);
return true;
@@ -271,7 +280,10 @@ localTimestampDifferenceExceeds(TimestampTz start_time,
* Note: The log position *must* be at a log segment start!
*/
bool
-ReceiveXlogStream(PGconn *conn, XLogRecPtr startpos, uint32 timeline, char *sysidentifier, char *basedir, stream_stop_callback stream_stop, int standby_message_timeout, bool rename_partial)
+ReceiveXlogStream(PGconn *conn, XLogRecPtr startpos, uint32 timeline,
+ char *sysidentifier, char *basedir,
+ stream_stop_callback stream_stop,
+ int standby_message_timeout, bool rename_partial)
{
char query[128];
char current_walfile_name[MAXPGPATH];
@@ -286,27 +298,33 @@ ReceiveXlogStream(PGconn *conn, XLogRecPtr startpos, uint32 timeline, char *sysi
res = PQexec(conn, "IDENTIFY_SYSTEM");
if (PQresultStatus(res) != PGRES_TUPLES_OK)
{
- fprintf(stderr, _("%s: could not identify system: %s\n"),
- progname, PQerrorMessage(conn));
+ fprintf(stderr,
+ _("%s: could not send replication command \"%s\": %s"),
+ progname, "IDENTIFY_SYSTEM", PQerrorMessage(conn));
PQclear(res);
return false;
}
if (PQnfields(res) != 3 || PQntuples(res) != 1)
{
- fprintf(stderr, _("%s: could not identify system, got %d rows and %d fields\n"),
- progname, PQntuples(res), PQnfields(res));
+ fprintf(stderr,
+ _("%s: could not identify system: got %d rows and %d fields, expected %d rows and %d fields\n"),
+ progname, PQntuples(res), PQnfields(res), 1, 3);
PQclear(res);
return false;
}
if (strcmp(sysidentifier, PQgetvalue(res, 0, 0)) != 0)
{
- fprintf(stderr, _("%s: system identifier does not match between base backup and streaming connection\n"), progname);
+ fprintf(stderr,
+ _("%s: system identifier does not match between base backup and streaming connection\n"),
+ progname);
PQclear(res);
return false;
}
if (timeline != atoi(PQgetvalue(res, 0, 1)))
{
- fprintf(stderr, _("%s: timeline does not match between base backup and streaming connection\n"), progname);
+ fprintf(stderr,
+ _("%s: timeline does not match between base backup and streaming connection\n"),
+ progname);
PQclear(res);
return false;
}
@@ -319,8 +337,8 @@ ReceiveXlogStream(PGconn *conn, XLogRecPtr startpos, uint32 timeline, char *sysi
res = PQexec(conn, query);
if (PQresultStatus(res) != PGRES_COPY_BOTH)
{
- fprintf(stderr, _("%s: could not start replication: %s\n"),
- progname, PQresultErrorMessage(res));
+ fprintf(stderr, _("%s: could not send replication command \"%s\": %s"),
+ progname, "START_REPLICATION", PQresultErrorMessage(res));
PQclear(res);
return false;
}
@@ -348,7 +366,8 @@ ReceiveXlogStream(PGconn *conn, XLogRecPtr startpos, uint32 timeline, char *sysi
*/
if (stream_stop && stream_stop(blockpos, timeline, false))
{
- if (walfile != -1 && !close_walfile(basedir, current_walfile_name, rename_partial))
+ if (walfile != -1 && !close_walfile(basedir, current_walfile_name,
+ rename_partial))
/* Potential error message is written by close_walfile */
goto error;
return true;
@@ -364,8 +383,9 @@ ReceiveXlogStream(PGconn *conn, XLogRecPtr startpos, uint32 timeline, char *sysi
{
/* Time to send feedback! */
char replybuf[sizeof(StandbyReplyMessage) + 1];
- StandbyReplyMessage *replymsg = (StandbyReplyMessage *) (replybuf + 1);
+ StandbyReplyMessage *replymsg;
+ replymsg = (StandbyReplyMessage *) (replybuf + 1);
replymsg->write = blockpos;
replymsg->flush = InvalidXLogRecPtr;
replymsg->apply = InvalidXLogRecPtr;
@@ -433,7 +453,8 @@ ReceiveXlogStream(PGconn *conn, XLogRecPtr startpos, uint32 timeline, char *sysi
/* Else there is actually data on the socket */
if (PQconsumeInput(conn) == 0)
{
- fprintf(stderr, _("%s: could not receive data from WAL stream: %s\n"),
+ fprintf(stderr,
+ _("%s: could not receive data from WAL stream: %s"),
progname, PQerrorMessage(conn));
goto error;
}
@@ -444,7 +465,7 @@ ReceiveXlogStream(PGconn *conn, XLogRecPtr startpos, uint32 timeline, char *sysi
break;
if (r == -2)
{
- fprintf(stderr, _("%s: could not read copy data: %s\n"),
+ fprintf(stderr, _("%s: could not read COPY data: %s"),
progname, PQerrorMessage(conn));
goto error;
}
@@ -456,7 +477,8 @@ ReceiveXlogStream(PGconn *conn, XLogRecPtr startpos, uint32 timeline, char *sysi
*/
if (r != STREAMING_KEEPALIVE_SIZE)
{
- fprintf(stderr, _("%s: keepalive message is incorrect size: %d\n"),
+ fprintf(stderr,
+ _("%s: keepalive message has incorrect size %d\n"),
progname, r);
goto error;
}
@@ -488,7 +510,8 @@ ReceiveXlogStream(PGconn *conn, XLogRecPtr startpos, uint32 timeline, char *sysi
/* No file open yet */
if (xlogoff != 0)
{
- fprintf(stderr, _("%s: received xlog record for offset %u with no file open\n"),
+ fprintf(stderr,
+ _("%s: received transaction log record for offset %u with no file open\n"),
progname, xlogoff);
goto error;
}
@@ -499,7 +522,8 @@ ReceiveXlogStream(PGconn *conn, XLogRecPtr startpos, uint32 timeline, char *sysi
/* XXX: store seek value don't reseek all the time */
if (lseek(walfile, 0, SEEK_CUR) != xlogoff)
{
- fprintf(stderr, _("%s: got WAL data offset %08x, expected %08x\n"),
+ fprintf(stderr,
+ _("%s: got WAL data offset %08x, expected %08x\n"),
progname, xlogoff, (int) lseek(walfile, 0, SEEK_CUR));
goto error;
}
@@ -534,10 +558,9 @@ ReceiveXlogStream(PGconn *conn, XLogRecPtr startpos, uint32 timeline, char *sysi
copybuf + STREAMING_HEADER_SIZE + bytes_written,
bytes_to_write) != bytes_to_write)
{
- fprintf(stderr, _("%s: could not write %u bytes to WAL file %s: %s\n"),
- progname,
- bytes_to_write,
- current_walfile_name,
+ fprintf(stderr,
+ _("%s: could not write %u bytes to WAL file \"%s\": %s\n"),
+ progname, bytes_to_write, current_walfile_name,
strerror(errno));
goto error;
}
@@ -581,7 +604,8 @@ ReceiveXlogStream(PGconn *conn, XLogRecPtr startpos, uint32 timeline, char *sysi
res = PQgetResult(conn);
if (PQresultStatus(res) != PGRES_COMMAND_OK)
{
- fprintf(stderr, _("%s: unexpected termination of replication stream: %s\n"),
+ fprintf(stderr,
+ _("%s: unexpected termination of replication stream: %s"),
progname, PQresultErrorMessage(res));
goto error;
}
generated by cgit v1.2.3 (git 2.39.1) at 2025-07-08 13:33:44 +0000