diff options
| author | Marcel Telka <marcel.telka@nexenta.com> | 2014-09-17 15:27:13 +0200 |
|---|---|---|
| committer | Robert Mustacchi <rm@joyent.com> | 2014-09-18 16:01:17 -0700 |
| commit | 655967ab7780f789dd00eece4464be60cd9aff5e (patch) | |
| tree | b0c615a16dc6c1dd82d62f98ef9e29e79aebd26a /usr/src/lib/nsswitch/files/common/files_common.c | |
| parent | dd3928f816b8d87f7ecc81d6ec1eec1257ed0cda (diff) | |
| download | illumos-gate-655967ab7780f789dd00eece4464be60cd9aff5e.tar.gz | |
5181 nscd is extremely slow when a local file is missing
Reviewed by: Alek Pinchuk <alek.pinchuk@nexenta.com>
Reviewed by: Igor Kozhukhov <ikozhukhov@gmail.com>
Reviewed by: Josef Sipek <josef.sipek@nexenta.com>
Reviewed by: Garrett D'Amore <garrett@damore.org>
Approved by: Robert Mustacchi <rm@joyent.com>
Diffstat (limited to 'usr/src/lib/nsswitch/files/common/files_common.c')
| -rw-r--r-- | usr/src/lib/nsswitch/files/common/files_common.c | 17 |
1 files changed, 12 insertions, 5 deletions
diff --git a/usr/src/lib/nsswitch/files/common/files_common.c b/usr/src/lib/nsswitch/files/common/files_common.c index 4b7b6753c1..4755aec86b 100644 --- a/usr/src/lib/nsswitch/files/common/files_common.c +++ b/usr/src/lib/nsswitch/files/common/files_common.c @@ -21,7 +21,12 @@ /* * Copyright 2008 Sun Microsystems, Inc. All rights reserved. * Use is subject to license terms. - * + */ +/* + * Copyright 2014 Nexenta Systems, Inc. All rights reserved. + */ + +/* * Common code and structures used by name-service-switch "files" backends. */ @@ -406,11 +411,13 @@ retry: retries = 100; while (stat64(be->filename, &st) < 0) { /* - * On a healthy system this can't happen except during brief - * periods when the file is being modified/renamed. Keep - * trying until things settle down, but eventually give up. + * This can happen only in two cases: Either the file is + * completely missing and we were not able to read it yet + * (fh_table is NULL), or there is some brief period when the + * file is being modified/renamed. Keep trying until things + * settle down, but eventually give up. */ - if (--retries == 0) + if (fhp->fh_table == NULL || --retries == 0) goto unavail; poll(0, 0, 100); } |