diff options
Diffstat (limited to 'src/backend/utils/cache/relmapper.c')
| -rw-r--r-- | src/backend/utils/cache/relmapper.c | 28 |
1 files changed, 18 insertions, 10 deletions
diff --git a/src/backend/utils/cache/relmapper.c b/src/backend/utils/cache/relmapper.c index 99d095f2df3..2d31f9f912a 100644 --- a/src/backend/utils/cache/relmapper.c +++ b/src/backend/utils/cache/relmapper.c @@ -629,6 +629,7 @@ load_relmap_file(bool shared) char mapfilename[MAXPGPATH]; pg_crc32c crc; int fd; + int r; if (shared) { @@ -648,7 +649,7 @@ load_relmap_file(bool shared) if (fd < 0) ereport(FATAL, (errcode_for_file_access(), - errmsg("could not open relation mapping file \"%s\": %m", + errmsg("could not open file \"%s\": %m", mapfilename))); /* @@ -659,11 +660,18 @@ load_relmap_file(bool shared) * are able to access any relation that's affected by the change. */ pgstat_report_wait_start(WAIT_EVENT_RELATION_MAP_READ); - if (read(fd, map, sizeof(RelMapFile)) != sizeof(RelMapFile)) - ereport(FATAL, - (errcode_for_file_access(), - errmsg("could not read relation mapping file \"%s\": %m", - mapfilename))); + r = read(fd, map, sizeof(RelMapFile)); + if (r != sizeof(RelMapFile)) + { + if (r < 0) + ereport(FATAL, + (errcode_for_file_access(), + errmsg("could not read file \"%s\": %m", mapfilename))); + else + ereport(FATAL, + (errmsg("could not read file \"%s\": read %d of %zu", + mapfilename, r, sizeof(RelMapFile)))); + } pgstat_report_wait_end(); CloseTransientFile(fd); @@ -748,7 +756,7 @@ write_relmap_file(bool shared, RelMapFile *newmap, if (fd < 0) ereport(ERROR, (errcode_for_file_access(), - errmsg("could not open relation mapping file \"%s\": %m", + errmsg("could not open file \"%s\": %m", mapfilename))); if (write_wal) @@ -782,7 +790,7 @@ write_relmap_file(bool shared, RelMapFile *newmap, errno = ENOSPC; ereport(ERROR, (errcode_for_file_access(), - errmsg("could not write to relation mapping file \"%s\": %m", + errmsg("could not write file \"%s\": %m", mapfilename))); } pgstat_report_wait_end(); @@ -797,14 +805,14 @@ write_relmap_file(bool shared, RelMapFile *newmap, if (pg_fsync(fd) != 0) ereport(ERROR, (errcode_for_file_access(), - errmsg("could not fsync relation mapping file \"%s\": %m", + errmsg("could not fsync file \"%s\": %m", mapfilename))); pgstat_report_wait_end(); if (CloseTransientFile(fd)) ereport(ERROR, (errcode_for_file_access(), - errmsg("could not close relation mapping file \"%s\": %m", + errmsg("could not close file \"%s\": %m", mapfilename))); /* |