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7c673cae FG |
1 | $ map="$TESTDIR/build.crushmap" |
2 | ||
3 | # | |
4 | # display the crush tree by default | |
5 | # | |
6 | $ crushtool --outfn "$map" --build --num_osds 5 node straw 2 rack straw 1 root straw 0 | |
7 | ||
8 | # | |
9 | # silence all messages with --debug-crush 0 | |
10 | # | |
11 | $ CEPH_ARGS="--debug-crush 0" crushtool --outfn "$map" --build --num_osds 5 node straw 2 rack straw 1 root straw 0 | |
12 | ||
13 | # | |
14 | # display a warning if there is more than one root | |
15 | # | |
16 | $ crushtool --outfn "$map" --build --num_osds 5 node straw 2 rack straw 1 | |
17 | .* The crush rulesets will use the root rack0 (re) | |
18 | and ignore the others. | |
19 | There are 3 roots, they can be | |
20 | grouped into a single root by appending something like: | |
21 | root straw 0 | |
22 | ||
23 | # | |
24 | # crush rulesets are generated using the OSDMap helpers | |
25 | # | |
31f18b77 | 26 | $ CEPH_ARGS="--debug-crush 0" crushtool --outfn "$map" --set-straw-calc-version 0 --build --num_osds 1 root straw 0 --set-chooseleaf-stable 0 |
7c673cae FG |
27 | $ crushtool -o "$map.txt" -d "$map" |
28 | $ cat "$map.txt" | |
29 | # begin crush map | |
30 | tunable choose_local_tries 0 | |
31 | tunable choose_local_fallback_tries 0 | |
32 | tunable choose_total_tries 50 | |
33 | tunable chooseleaf_descend_once 1 | |
34 | tunable chooseleaf_vary_r 1 | |
35 | tunable allowed_bucket_algs 54 | |
36 | ||
37 | # devices | |
38 | device 0 osd.0 | |
39 | ||
40 | # types | |
41 | type 0 osd | |
42 | type 1 root | |
43 | ||
44 | # buckets | |
45 | root root { | |
46 | \tid -1\t\t# do not change unnecessarily (esc) | |
47 | \t# weight 1.000 (esc) | |
48 | \talg straw (esc) | |
49 | \thash 0\t# rjenkins1 (esc) | |
50 | \titem osd.0 weight 1.000 (esc) | |
51 | } | |
52 | ||
53 | # rules | |
31f18b77 | 54 | rule replicated_rule { |
7c673cae FG |
55 | \truleset 0 (esc) |
56 | \ttype replicated (esc) | |
57 | \tmin_size 1 (esc) | |
58 | \tmax_size 10 (esc) | |
59 | \tstep take root (esc) | |
60 | \tstep chooseleaf firstn 0 type root (esc) | |
61 | \tstep emit (esc) | |
62 | } | |
63 | ||
64 | # end crush map | |
65 | $ rm "$map" "$map.txt" | |
66 | ||
67 | # | |
68 | # Wrong number of arguments | |
69 | # | |
70 | $ crushtool --outfn "$map" --debug-crush 0 --build --num_osds 5 node straw 0 | |
71 | remaining args: [--debug-crush,0,node,straw,0] | |
72 | layers must be specified with 3-tuples of (name, buckettype, size) | |
73 | [1] | |
74 | ||
75 | # Local Variables: | |
76 | # compile-command: "cd ../../.. ; make crushtool && test/run-cli-tests" | |
77 | # End: |