openstack/openstack-helm-infra
Code Issues Proposed changes

Additional Ceph tunning parameters for openstack-helm

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osd_scrub_load_threshold set to 10.0 (default 0.5)
 - With the number of multi-core processors nowadays, it's fairly
   typical to see systems over a load of 1.0. We need to adjust the
   scrub load threshold so that scrubbing runs as scheduled even
   when a node is moderately/lightly under load.

filestore_max_sync_interval set to 10s (default 5s)
 - Larger default journal sizes (>1GB) will not be effectively used
   unless the max sync interval time is increased for Filestore. The
   benefit of this change is increased performance especially around
   sequential write workloads.

mon_osd_down_out_interval set to 1800s (default 600s)
 - OSD PODs can take longer then several minutes to boot up. Mark
   an OSD as 'out' in the CRUSH map only after 15 minutes of being
   'down'.

Change-Id: I62d6d0de436c270d3295671f8c7f74c89b3bd71e
This commit is contained in:
Matthew Heler 2018-12-04 20:15:21 -06:00
parent a5b8223eeb
commit 4ad893eb1a
2 changed files with 6 additions and 0 deletions
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3
ceph-mon/values.yaml
View File

@ -157,6 +157,7 @@ conf:
objecter_inflight_op_bytes: "1073741824"
objecter_inflight_ops: 10240
debug_ms: "0/0"
mon_osd_down_out_interval: 1800
osd:
osd_mkfs_type: xfs
osd_mkfs_options_xfs: -f -i size=2048
@ -168,12 +169,14 @@ conf:
osd_pg_max_concurrent_snap_trims: 1
filestore_merge_threshold: -10
filestore_split_multiple: 12
filestore_max_sync_interval: 10
osd_scrub_begin_hour: 22
osd_scrub_end_hour: 4
osd_scrub_during_recovery: false
osd_scrub_sleep: 0.1
osd_scrub_chunk_min: 1
osd_scrub_chunk_max: 4
osd_scrub_load_threshold: 10.0
osd_deep_scrub_stride: "1048576"
osd_scrub_priority: 1
osd_recovery_op_priority: 1

3
ceph-osd/values.yaml
View File

@ -91,6 +91,7 @@ conf:
objecter_inflight_op_bytes: "1073741824"
objecter_inflight_ops: 10240
debug_ms: "0/0"
mon_osd_down_out_interval: 1800
osd:
osd_mkfs_type: xfs
osd_mkfs_options_xfs: -f -i size=2048
@ -102,12 +103,14 @@ conf:
osd_pg_max_concurrent_snap_trims: 1
filestore_merge_threshold: -10
filestore_split_multiple: 12
filestore_max_sync_interval: 10
osd_scrub_begin_hour: 22
osd_scrub_end_hour: 4
osd_scrub_during_recovery: false
osd_scrub_sleep: 0.1
osd_scrub_chunk_min: 1
osd_scrub_chunk_max: 4
osd_scrub_load_threshold: 10.0
osd_deep_scrub_stride: "1048576"
osd_scrub_priority: 1
osd_recovery_op_priority: 1