blob: 7030780d9a9fdc8022a5d0542ac8bee08700dc87 (
plain)
1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31
32
33
34
35
36
37
38
39
40
41
42
43
44
45
46
47
48
49
50
51
52
53
54
55
56
57
58
59
60
61
62
63
64
65
66
67
68
69
70
71
72
73
74
75
76
77
78
79
80
81
82
83
84
85
86
87
88
89
90
91
92
93
94
95
96
97
98
99
100
101
102
103
104
105
106
107
108
109
110
111
112
113
114
115
116
117
118
119
120
121
122
123
124
125
126
127
128
129
130
131
132
133
134
135
136
137
138
139
140
141
142
143
144
145
|
# -*- mode: YAML -*-
---
options:
- name: crimson_osd_obc_lru_size
type: uint
level: advanced
desc: Number of obcs to cache
default: 512
- name: crimson_osd_scheduler_concurrency
type: uint
level: advanced
desc: The maximum number concurrent IO operations, 0 for unlimited
default: 0
- name: crimson_alien_op_num_threads
type: uint
level: advanced
desc: The number of threads for serving alienized ObjectStore
default: 6
flags:
- startup
- name: crimson_seastar_cpu_cores
type: str
level: advanced
desc: CPU cores on which seastar reactor threads will run in cpuset(7) format, smp::count is deduced from this option
flags:
- startup
- name: crimson_alien_thread_cpu_cores
type: str
level: advanced
desc: CPU cores on which alienstore threads will run in cpuset(7) format
flags:
- startup
- name: crimson_osd_stat_interval
type: int
level: advanced
default: 0
desc: Report OSD status periodically in seconds, 0 to disable
- name: seastore_segment_size
type: size
desc: Segment size to use for SegmentManager
level: advanced
default: 64_M
- name: seastore_device_size
type: size
desc: Total size to use for SegmentManager block file if created
level: dev
default: 50_G
- name: seastore_block_create
type: bool
level: dev
desc: Create SegmentManager file if it doesn't exist
default: true
see_also:
- seastore_device_size
- name: seastore_journal_batch_capacity
type: uint
level: dev
desc: The number limit of records in a journal batch
default: 16
- name: seastore_journal_batch_flush_size
type: size
level: dev
desc: The size threshold to force flush a journal batch
default: 16_M
- name: seastore_journal_iodepth_limit
type: uint
level: dev
desc: The io depth limit to submit journal records
default: 5
- name: seastore_journal_batch_preferred_fullness
type: float
level: dev
desc: The record fullness threshold to flush a journal batch
default: 0.95
- name: seastore_default_max_object_size
type: uint
level: dev
desc: default logical address space reservation for seastore objects' data
default: 16777216
- name: seastore_default_object_metadata_reservation
type: uint
level: dev
desc: default logical address space reservation for seastore objects' metadata
default: 16777216
# TODO: implement sub-extent checksum and deprecate this configuration.
- name: seastore_full_integrity_check
type: bool
level: dev
desc: Whether seastore need to fully check the integrity of each extent,
non-full integrity check means the integrity check might be skipped
during extent remapping for better performance, disable with caution
default: false
# TODO: seastore_max_data_allocation_size should be dropped once the sub-extent
# read/checksum is implemented.
- name: seastore_max_data_allocation_size
type: size
level: advanced
desc: Max size in bytes that an extent can be
default: 32_K
- name: seastore_cache_lru_size
type: size
level: advanced
desc: Size in bytes of extents to keep in cache.
default: 64_M
- name: seastore_obj_data_write_amplification
type: float
level: advanced
desc: split extent if ratio of total extent size to write size exceeds this value
default: 1.25
- name: seastore_max_concurrent_transactions
type: uint
level: advanced
desc: maximum concurrent transactions that seastore allows
default: 8
- name: seastore_main_device_type
type: str
level: dev
desc: The main device type seastore uses (SSD or RANDOM_BLOCK_SSD)
default: SSD
- name: seastore_cbjournal_size
type: size
level: dev
desc: Total size to use for CircularBoundedJournal if created, it is valid only if seastore_main_device_type is RANDOM_BLOCK
default: 5_G
- name: seastore_multiple_tiers_stop_evict_ratio
type: float
level: advanced
desc: When the used ratio of main tier is less than this value, then stop evict cold data to the cold tier.
default: 0.5
- name: seastore_multiple_tiers_default_evict_ratio
type: float
level: advanced
desc: Begin evicting cold data to the cold tier when the used ratio of the main tier reaches this value.
default: 0.6
- name: seastore_multiple_tiers_fast_evict_ratio
type: float
level: advanced
desc: Begin fast eviction when the used ratio of the main tier reaches this value.
default: 0.7
- name: seastore_data_delta_based_overwrite
type: size
level: dev
desc: overwrite the existing data block based on delta if the overwrite size is equal to or less than the value, otherwise do overwrite based on remapping, set to 0 to enforce the remap-based overwrite.
default: 0
|
