diff options
| author | Milind Changire <mchangir@redhat.com> | 2016-10-15 10:49:19 +0530 |
|---|---|---|
| committer | Dan Lambright <dlambrig@redhat.com> | 2016-10-19 12:51:48 -0700 |
| commit | 460016428cf27484c333227f534c2e2f73a37fb1 (patch) | |
| tree | 321a1bb0517f622a134b3ab0634d6fea842fdb06 /xlators/cluster/dht/src/tier.h | |
| parent | 20d2b36f3acc2f27527b7913d2ad939848395aeb (diff) | |
cluster/tier: handle fast demotions
Demote files on priority if hi-watermark has been breached and continue
to demote until the watermark drops below hi-watermark.
Monitor watermark more frequently.
Trigger demotion as soon as hi-watermark is breached.
Add cluster.tier-emergency-demote-query-limit option to limit number
of files returned from the database query for every iteration of
tier_migrate_using_query_file(). If watermark hasn't dropped below
hi-watermark during the first iteration, the next iteration will be
triggered approximately 1 second after tier_demote() returns to the
main tiering loop.
Update changetimerecorder xlator to handle query for emergency demote
mode.
Add tier-ctr-interface.h:
Move tier and ctr interface specific macros and struct definition from
libglusterfs/src/gfdb/gfdb_data_store.h to new header
libglusterfs/src/tier-ctr-interface.h
Change-Id: If56af78c6c81d37529b9b6e65ae606ba5c99a811
BUG: 1366648
Signed-off-by: Milind Changire <mchangir@redhat.com>
Reviewed-on: http://review.gluster.org/15158
Smoke: Gluster Build System <jenkins@build.gluster.org>
CentOS-regression: Gluster Build System <jenkins@build.gluster.org>
NetBSD-regression: NetBSD Build System <jenkins@build.gluster.org>
Reviewed-by: Dan Lambright <dlambrig@redhat.com>
Diffstat (limited to 'xlators/cluster/dht/src/tier.h')
| -rw-r--r-- | xlators/cluster/dht/src/tier.h | 3 |
1 files changed, 2 insertions, 1 deletions
diff --git a/xlators/cluster/dht/src/tier.h b/xlators/cluster/dht/src/tier.h index ffb04173bd5..764860e6884 100644 --- a/xlators/cluster/dht/src/tier.h +++ b/xlators/cluster/dht/src/tier.h @@ -98,7 +98,7 @@ typedef enum tier_watermark_op_ { #define DEFAULT_DEMOTE_FREQ_SEC 120 #define DEFAULT_HOT_COMPACT_FREQ_SEC 604800 #define DEFAULT_COLD_COMPACT_FREQ_SEC 604800 -#define DEFAULT_DEMOTE_DEGRADED 10 +#define DEFAULT_DEMOTE_DEGRADED 1 #define DEFAULT_WRITE_FREQ_SEC 0 #define DEFAULT_READ_FREQ_SEC 0 #define DEFAULT_WM_LOW 75 @@ -107,5 +107,6 @@ typedef enum tier_watermark_op_ { #define DEFAULT_COMP_MODE _gf_true #define DEFAULT_TIER_MAX_MIGRATE_MB 1000 #define DEFAULT_TIER_MAX_MIGRATE_FILES 5000 +#define DEFAULT_TIER_QUERY_LIMIT 100 #endif |