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Add some elog(DEBUG)'s to help diagnose mdblindwrt failures.

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This commit is contained in:
Tom Lane 2000-05-25 23:30:20 +00:00
parent 92286bd576
commit 39725e56e8
1 changed files with 17 additions and 1 deletions
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18
src/backend/storage/smgr/md.c
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@ -8,10 +8,11 @@
* *
* *
* IDENTIFICATION * IDENTIFICATION
* $Header: /cvsroot/pgsql/src/backend/storage/smgr/md.c,v 1.67 2000/04/12 17:15:41 momjian Exp $ * $Header: /cvsroot/pgsql/src/backend/storage/smgr/md.c,v 1.68 2000/05/25 23:30:20 tgl Exp $
* *
*------------------------------------------------------------------------- *-------------------------------------------------------------------------
*/ */
#include <errno.h>
#include <unistd.h> #include <unistd.h>
#include <fcntl.h> #include <fcntl.h>
#include <sys/file.h> #include <sys/file.h>
@ -609,8 +610,11 @@ mdblindwrt(char *dbname,
seekpos = (long) (BLCKSZ * (blkno)); seekpos = (long) (BLCKSZ * (blkno));
#endif #endif
errno = 0;
if (lseek(fd, seekpos, SEEK_SET) != seekpos) if (lseek(fd, seekpos, SEEK_SET) != seekpos)
{ {
elog(DEBUG, "mdblindwrt: lseek(%ld) failed: %m", seekpos);
close(fd); close(fd);
return SM_FAIL; return SM_FAIL;
} }
@ -619,13 +623,22 @@ mdblindwrt(char *dbname,
/* write and optionally sync the block */ /* write and optionally sync the block */
if (write(fd, buffer, BLCKSZ) != BLCKSZ) if (write(fd, buffer, BLCKSZ) != BLCKSZ)
{
elog(DEBUG, "mdblindwrt: write() failed: %m");
status = SM_FAIL; status = SM_FAIL;
}
else if (dofsync && else if (dofsync &&
pg_fsync(fd) < 0) pg_fsync(fd) < 0)
{
elog(DEBUG, "mdblindwrt: fsync() failed: %m");
status = SM_FAIL; status = SM_FAIL;
}
if (close(fd) < 0) if (close(fd) < 0)
{
elog(DEBUG, "mdblindwrt: close() failed: %m");
status = SM_FAIL; status = SM_FAIL;
}
return status; return status;
} }
@ -1122,6 +1135,9 @@ _mdfd_blind_getseg(char *dbname, char *relname, Oid dbid, Oid relid,
fd = open(path, O_RDWR | O_BINARY, 0600); fd = open(path, O_RDWR | O_BINARY, 0600);
#endif #endif
if (fd < 0)
elog(DEBUG, "_mdfd_blind_getseg: couldn't open %s: %m", path);
pfree(path); pfree(path);
return fd; return fd;