| Commit message (Collapse) | Author | Age | Files | Lines |
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This fixes the ping-pong issue i.e files getting demoted immediately
after promition, caused by off-sync promotion/demotion processes.
The solution is do promotion/demotion refering to the system time.
To have the fix working all the file serving nodes should have
thier system time synchronized with each other either manually or
using a NTP Server.
NOTE: The ping-pong issue can re-appear even with this fix, if the admin
have different promotion freq period and demotion freq period, but this
would be under the control of the admin.
Change-Id: I1b33a5881d0cac143662ddb48e5b7b653aeb1271
BUG: 1218717
Signed-off-by: Joseph Fernandes <josferna@redhat.com>
Reviewed-on: http://review.gluster.org/11110
Reviewed-by: Dan Lambright <dlambrig@redhat.com>
Tested-by: Dan Lambright <dlambrig@redhat.com>
Tested-by: Gluster Build System <jenkins@build.gluster.com>
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For a tiered volume the cold subvolume is always at a fixed
position in the graph. DHT's layout array, on the other hand,
may have the cold subvolume in either the first or second
index, therefore code cannot make any assumptions. The fix
searches the layout for the correct position dynamically
rather than statically.
The bug manifested itself in NFS, in which a newly attached
subvolume had not received an existing directory. This case
is a "stale entry" and marked as such in the layout for
that directory. The code did not see this, because it
looked at the wrong index in the layout array.
The fix also adds the check for decomissioned bricks, and
fixes a problem in detach tier related to starting the
rebalance process: we never received the right defrag
command and it did not get directed to the tier translator.
Change-Id: I77cdf9fbb0a777640c98003188565a79be9d0b56
BUG: 1214289
Signed-off-by: Dan Lambright <dlambrig@redhat.com>
Tested-by: Gluster Build System <jenkins@build.gluster.com>
Tested-by: NetBSD Build System <jenkins@build.gluster.org>
Reviewed-by: Shyamsundar Ranganathan <srangana@redhat.com>
Reviewed-by: Joseph Fernandes <josferna@redhat.com>
Reviewed-by: Mohammed Rafi KC <rkavunga@redhat.com>
Reviewed-on: http://review.gluster.org/11092
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Volume set option related to tier volume can only be set
for tier volume, also currently all volume set i for tier
option accepts a non-negative integer. This patch validate
both condition.
Change-Id: I3611af048ff4ab193544058cace8db205ea92336
BUG: 1216960
Signed-off-by: Mohammed Rafi KC <rkavunga@redhat.com>
Signed-off-by: Dan Lambright <dlambrig@redhat.com>
Reviewed-on: http://review.gluster.org/10751
Tested-by: Gluster Build System <jenkins@build.gluster.com>
Tested-by: NetBSD Build System <jenkins@build.gluster.org>
Reviewed-by: Joseph Fernandes
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gcc v5.1.1 throws warning for calling a static function from a
non-static inline function.
<snippet from compiler warning>
CC tier.lo
tier.c:610:15: warning: 'tier_migrate_using_query_file' is static but used in inline function 'tier_migrate_files_using_qfile' which is not static
ret = tier_migrate_using_query_file ((void *)query_cbk_args);
^
tier.c:585:47: warning: 'tier_process_brick_cbk' is static but used in inline function 'tier_build_migration_qfile' which is not static
ret = dict_foreach (args->brick_list, tier_process_brick_cbk,
^
tier.c:565:176: warning: 'demotion_qfile' is static but used in inline function 'tier_build_migration_qfile' which is not static
tier.c:565:158: warning: 'promotion_qfile' is static but used in inline function 'tier_build_migration_qfile' which is not static
tier.c:563:58: warning: 'demotion_qfile' is static but used in inline function 'tier_build_migration_qfile' which is not static
tier.c:563:40: warning: 'promotion_qfile' is static but used in inline function 'tier_build_migration_qfile' which is not static
ret = remove (GET_QFILE_PATH (is_promotion));
^
CCLD tier.la
</snip>
Change-Id: I46046feeb79ab4e2724b0ba6b02c9ec8b121ff4e
BUG: 1226881
Signed-off-by: Mohammed Rafi KC <rkavunga@redhat.com>
Reviewed-on: http://review.gluster.org/11032
Tested-by: NetBSD Build System <jenkins@build.gluster.org>
Tested-by: Gluster Build System <jenkins@build.gluster.com>
Reviewed-by: Niels de Vos <ndevos@redhat.com>
Reviewed-by: Anoop C S <achiraya@redhat.com>
Reviewed-by: Kaleb KEITHLEY <kkeithle@redhat.com>
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Instead of including config.h in each file, and have the additional
config.h included from the compiler commandline (-include option).
When a .c file tests for a certain #define, and config.h was not
included, incorrect assumtions were made. With this change, it can not
happen again.
BUG: 1222319
Change-Id: I4f9097b8740b81ecfe8b218d52ca50361f74cb64
Signed-off-by: Niels de Vos <ndevos@redhat.com>
Reviewed-on: http://review.gluster.org/10808
Tested-by: Gluster Build System <jenkins@build.gluster.com>
Tested-by: NetBSD Build System
Reviewed-by: Kaleb KEITHLEY <kkeithle@redhat.com>
Reviewed-by: Pranith Kumar Karampuri <pkarampu@redhat.com>
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When promotion/demotion daemon starts, it uses the same pidfile
as rebalance. This patch will introduce a different pid file
for the same.
Change-Id: Ic484c53f51e00ae6b2d697748a9600b14829e23b
BUG: 1221970
Signed-off-by: Mohammed Rafi KC <rkavunga@redhat.com>
Reviewed-on: http://review.gluster.org/10792
Reviewed-by: Atin Mukherjee <amukherj@redhat.com>
Tested-by: Gluster Build System <jenkins@build.gluster.com>
Tested-by: NetBSD Build System
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Coverity CID 1291727.
Guenther
Change-Id: I95f01b638f74370f0ef04383f0f9d5799abe31f5
BUG: 789278
Signed-off-by: Guenther Deschner <gd@samba.org>
Reviewed-on: http://review.gluster.org/10300
Reviewed-by: Dan Lambright <dlambrig@redhat.com>
Tested-by: Gluster Build System <jenkins@build.gluster.com>
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We should load libgfdb.so.0, not libgfdb.so
Change-Id: I7a0d64018ccd9893b1685de391e99b5392bd1879
BUG: 1222092
Signed-off-by: Dan Lambright <dlambrig@redhat.com>
Reviewed-on: http://review.gluster.org/10796
Reviewed-by: Kaleb KEITHLEY <kkeithle@redhat.com>
Reviewed-by: Joseph Fernandes
Reviewed-by: Niels de Vos <ndevos@redhat.com>
Tested-by: Gluster Build System <jenkins@build.gluster.com>
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This fix adds support to view the number of promoted or demoted
files from the cli. The mechanism is isolmorphic to checking
the status of volumes being rebalanced.
gluster volume rebalance <vol> tier status
Change-Id: I1b11ca27355ceec36c488967c23531202030e205
BUG: 1213063
Signed-off-by: Mohammed Rafi KC <rkavunga@redhat.com>
Signed-off-by: Dan Lambright <dlambrig@redhat.com>
Reviewed-on: http://review.gluster.org/10292
Reviewed-by: Atin Mukherjee <amukherj@redhat.com>
Tested-by: Gluster Build System <jenkins@build.gluster.com>
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In the patch http://review.gluster.org/#/c/9657
the client pid set by tiering migration was getting over-
written in dht_start_rebalance_task(). Just corrected it
in dht_setxattr() before calling dht_start_rebalance_task()
and removed it from dht_start_rebalance_task().
Change-Id: I37cfa111f83a4e5d498042575c93799f60b49870
BUG: 1217937
Signed-off-by: Joseph Fernandes <josferna@redhat.com>
Reviewed-on: http://review.gluster.org/10502
Tested-by: Gluster Build System <jenkins@build.gluster.com>
Reviewed-by: Susant Palai <spalai@redhat.com>
Reviewed-by: Dan Lambright <dlambrig@redhat.com>
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When we attach a tier, the hot tier becomes the hashed
subvolume. But directories may not yet have been replicated by
the fix layout process. Hence lookups to those directories
will fail on the hot subvolume. We should only go to the hashed
subvolume once the layout has been fixed. This is known if the
layout for the parent directory does not have an error. If
there is an error, the cold tier is considered the hashed
subvolume. The exception to this rules is ENOCON, in which
case we do not know where the file is and must abort.
Note we may revalidate a lookup for a directory even if the
inode has not yet been populated by FUSE. This case can
happen in tiering (where one tier has completed a lookup
but the other has not, in which case we revalidate one tier
when we call lookup the second time). Such inodes are
still invalid and should not be consulted for validation.
Change-Id: Ia2bc62e1d807bd70590bd2a8300496264d73c523
BUG: 1214289
Signed-off-by: Dan Lambright <dlambrig@redhat.com>
Reviewed-on: http://review.gluster.org/10435
Tested-by: Gluster Build System <jenkins@build.gluster.com>
Reviewed-by: Raghavendra G <rgowdapp@redhat.com>
Reviewed-by: N Balachandran <nbalacha@redhat.com>
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When calling dlopen() for libgfdb, do not specify the library version
number "libgfdb.so.0.0.1", since libtool will not always create libraries
or link with that name with the full 3-digit version. For instance on
NetBSD only up to the 2-digit version is available and "libgfdb.so.0.0.1"
does not exist.
Instead, just specify "libgfdb.so" and rely on smymlinks installed by
libtool to find the relevant library.
BUG: 1129939
Change-Id: I074b1009d3622a122fdaeb4b99658bca3277e211
Signed-off-by: Emmanuel Dreyfus <manu@netbsd.org>
Reviewed-on: http://review.gluster.org/10407
Tested-by: NetBSD Build System
Tested-by: Gluster Build System <jenkins@build.gluster.com>
Reviewed-by: Vijay Bellur <vbellur@redhat.com>
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This is a follow up patch for http://review.gluster.org/#/c/10080
In the above, the suggested change in
http://review.gluster.org/#/c/10080/7/xlators/cluster/dht/src/dht-rebalance.c
doesnot work. The reason it doesnt work is promotion and demotion are done in
a multithread way. Whenever a promotion or demotion thread is called, the frame
of the old sync_op thread is not carried with it. As a result the frame->root->pid
is not set.
Solution:
When the file is getting migrated, we get a tiering.migration key_value in the
xattr dict, so that we pass this dic key-value when we do syncop_setxattr()
to do data migration and set the frame->root->pid GF_CLIENT_PID_TIER_DEFRAG
in dht_setxattr() just before calling dht_start_rebalance_task().
Change-Id: I86fef2d961b32fdd2c0c69d8512cbe846b393404
BUG: 1194753
Signed-off-by: Joseph Fernandes <josferna@redhat.com>
Reviewed-on: http://review.gluster.org/10266
Reviewed-by: Shyamsundar Ranganathan <srangana@redhat.com>
Reviewed-by: Susant Palai <spalai@redhat.com>
Reviewed-by: Dan Lambright <dlambrig@redhat.com>
Tested-by: Gluster Build System <jenkins@build.gluster.com>
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UUID strings are UUID_CANONICAL_FORM_LEN (36) bytes long
plus the trailing nul character that various function (e.g.:
uuid_unparse) will add. As a consequence, UUID strings must
be declared as UUID_CANONICAL_FORM_LEN+1 long, otherwise
we get a off-by-one overrun that corrupts the next variable
on stack.
BUG: 1129939
Change-Id: I5837ad6ca06fa17cc7ab143eedd02d8099ecca2a
Signed-off-by: Emmanuel Dreyfus <manu@netbsd.org>
Reviewed-on: http://review.gluster.org/10394
Tested-by: NetBSD Build System
Tested-by: Gluster Build System <jenkins@build.gluster.com>
Reviewed-by: Vijay Bellur <vbellur@redhat.com>
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Coverity CID 1291751.
Guenther
Change-Id: Ibe9dc3662811dc5889f85fa063ab9211fcaf7f12
BUG: 789278
Signed-off-by: Guenther Deschner <gd@samba.org>
Reviewed-on: http://review.gluster.org/10301
Reviewed-by: Shyamsundar Ranganathan <srangana@redhat.com>
Reviewed-by: Dan Lambright <dlambrig@redhat.com>
Tested-by: NetBSD Build System
Tested-by: Gluster Build System <jenkins@build.gluster.com>
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These commands work in a manner analagous to rebalancing when removing a
brick. The existing migration daemon detects "detach start" and switches
to moving data off the hot tier. While in this state all lookups are
directed to the cold tier.
gluster v detach-tier <vol> start
gluster v detach-tier <vol> commit
The status and stop cli commands shall be submitted separately.
Change-Id: I24fda5cc3ba74f5fb8aa9a3234ad51f18b80a8a0
BUG: 1205540
Signed-off-by: Dan Lambright <dlambrig@redhat.com>
Signed-off-by: root <root@localhost.localdomain>
Signed-off-by: Dan Lambright <dlambrig@redhat.com>
Reviewed-on: http://review.gluster.org/10108
Reviewed-by: Kaleb KEITHLEY <kkeithle@redhat.com>
Tested-by: NetBSD Build System
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This patch adds support for xdata in both the
request and response path of syncops.
Few calls like lookup already had the support;
have renamed variables in few places to maintain
uniformity.
xdata passed downwards is known as xdata_in
and xdata passed upwards is known as xdata_out.
There is an old patch by Jeff Darcy at
http://review.gluster.org/#/c/8769/3 which does the
same for some selected calls. It also brings in
xdata support at gfapi level.
xdata support at gfapi level would be introduced
in subsequent patches.
Change-Id: I340e94ebaf2a38e160e65bc30732e8fe1c532dcc
BUG: 1158621
Signed-off-by: Raghavendra Talur <rtalur@redhat.com>
Reviewed-on: http://review.gluster.org/9859
Tested-by: Gluster Build System <jenkins@build.gluster.com>
Reviewed-by: Vijay Bellur <vbellur@redhat.com>
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We did not set up the graph properly for hot tiers with replicated
subvolumes. Also add check that the file has not already been moved
by another replicated brick on the same node.
Change-Id: I9adef565ab60f6774810962d912168b77a6032fa
BUG: 1206517
Signed-off-by: Dan Lambright <dlambrig@redhat.com>
Reviewed-on: http://review.gluster.org/10054
Reviewed-by: Joseph Fernandes <josferna@redhat.com>
Tested-by: Gluster Build System <jenkins@build.gluster.com>
Reviewed-by: Kaleb KEITHLEY <kkeithle@redhat.com>
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There is smoke test failure due to implici declaration of function
"uuid_parse" and "uuid_compare".
Fix is to change these function caller name to "gf_uuid_parse" and
"gf_uuid_compare."
Change-Id: I79efa00c44d112c2ca732a9d9711c07bd5f1a069
BUG: 1207532
Signed-off-by: Gaurav Kumar Garg <ggarg@redhat.com>
Reviewed-on: http://review.gluster.org/10139
Reviewed-by: Niels de Vos <ndevos@redhat.com>
Tested-by: Niels de Vos <ndevos@redhat.com>
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This patch resolves tiering translator issues taken from the list
in bug 1203776. These issues have been selected to be fixed
first. The rest will be fixed in a subsequent patch (or are not a
problem).
3. Replace hardcoded #defines of promote/demote file names
6. Use loc_wipe() in migrate_using_query_file()
9. Only promote/demote files on the same node on which they reside.
14. Replace calloc with GF_CALLOC in tier.c and ensure freeing done
properly.
15. Handle if parse_query_str fails
22. Only load gfdb library on server side, remove SQL references
from client.
Change-Id: I6563b11e58ab2e4c6b1ce44db755781ad6d930fb
BUG: 1203776
Signed-off-by: Dan Lambright <dlambrig@redhat.com>
Reviewed-on: http://review.gluster.org/9987
Tested-by: Gluster Build System <jenkins@build.gluster.com>
Reviewed-by: N Balachandran <nbalacha@redhat.com>
Reviewed-by: Niels de Vos <ndevos@redhat.com>
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glusterfs relies on Linux uuid implementation, which
API is incompatible with most other systems's uuid. As
a result, libglusterfs has to embed contrib/uuid,
which is the Linux implementation, on non Linux systems.
This implementation is incompatible with systtem's
built in, but the symbols have the same names.
Usually this is not a problem because when we link
with -lglusterfs, libc's symbols are trumped. However
there is a problem when a program not linked with
-lglusterfs will dlopen() glusterfs component. In
such a case, libc's uuid implementation is already
loaded in the calling program, and it will be used
instead of libglusterfs's implementation, causing
crashes.
A possible workaround is to use pre-load libglusterfs
in the calling program (using LD_PRELOAD on NetBSD for
instance), but such a mechanism is not portable, nor
is it flexible. A much better approach is to rename
libglusterfs's uuid_* functions to gf_uuid_* to avoid
any possible conflict. This is what this change attempts.
BUG: 1206587
Change-Id: I9ccd3e13afed1c7fc18508e92c7beb0f5d49f31a
Signed-off-by: Emmanuel Dreyfus <manu@netbsd.org>
Reviewed-on: http://review.gluster.org/10017
Tested-by: Gluster Build System <jenkins@build.gluster.com>
Reviewed-by: Niels de Vos <ndevos@redhat.com>
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The bug was:
*** CID 1291734: Error handling issues (CHECKED_RETURN)
/xlators/cluster/dht/src/tier.c: 451 in tier_build_migration_qfile()
The fix is to check the return code to the remove library call.
It is legal to fail, we just log an INFO level message.
Change-Id: I026eb49276b394efa3b8092ee2cc209c470aacb2
BUG: 1194753
Signed-off-by: Dan Lambright <dlambrig@redhat.com>
Reviewed-on: http://review.gluster.org/10000
Tested-by: Gluster Build System <jenkins@build.gluster.com>
Reviewed-by: Niels de Vos <ndevos@redhat.com>
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The tier translator shares most of DHT's code. It differs in how
subvolumes are chosen for I/Os, and how file migration (cache promotion
and demotion) is managed. That different functionality is split to either
DHT or tier logic according to the "tier_methods" structure.
A cache promotion and demotion thread is created in a manner
similar to the rebalance daemon. The thread operates a timing
wheel which periodically checks for promotion and demotion candidates
(files). Candidates are queued and then migrated. Candidates must exist on
the same node as the daemon and meet other critera per caching policies.
This patch has two authors (Dan Lambright and Joseph Fernandes). Dan
did the DHT changes and Joe wrote the cache policies. The fix depends on
DHT readidr changes and the database library which have been submitted
separately. Header files in libglusterfs/src/gfdb should be reviewed in
patch 9683.
For more background and design see the feature page [1].
[1]
http://www.gluster.org/community/documentation/index.php/Features/data-classification
Change-Id: Icc26c517ccecf5c42aef039f5b9c6f7afe83e46c
BUG: 1194753
Signed-off-by: Dan Lambright <dlambrig@redhat.com>
Reviewed-on: http://review.gluster.org/9724
Reviewed-by: Vijay Bellur <vbellur@redhat.com>
Tested-by: Vijay Bellur <vbellur@redhat.com>
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