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Diffstat (limited to 'src/test/cli/crushtool/help.t')
| -rw-r--r-- | src/test/cli/crushtool/help.t | 163 |
1 files changed, 163 insertions, 0 deletions
diff --git a/src/test/cli/crushtool/help.t b/src/test/cli/crushtool/help.t new file mode 100644 index 00000000..77460bd2 --- /dev/null +++ b/src/test/cli/crushtool/help.t @@ -0,0 +1,163 @@ + $ crushtool --help + usage: crushtool ... + + Display, modify and test a crush map + + There are five stages, running one after the other: + + - input/build + - tunables adjustments + - modifications + - display/test + - output + + Options that are not specific to a stage. + + [--infn|-i infile] + read the crush map from infile + + Options for the input/build stage + + --decompile|-d map decompile a crush map to source + [--outfn|-o outfile] + specify output for for (de)compilation + --compile|-c map.txt compile a map from source + --enable-unsafe-tunables + compile with unsafe tunables + --build --num_osds N layer1 ... + build a new map, where each 'layer' is + 'name (uniform|straw2|straw|list|tree) size' + + Options for the tunables adjustments stage + + --set-choose-local-tries N + set choose local retries before re-descent + --set-choose-local-fallback-tries N + set choose local retries using fallback + permutation before re-descent + --set-choose-total-tries N + set choose total descent attempts + --set-chooseleaf-descend-once <0|1> + set chooseleaf to (not) retry the recursive descent + --set-chooseleaf-vary-r <0|1> + set chooseleaf to (not) vary r based on parent + --set-chooseleaf-stable <0|1> + set chooseleaf firstn to (not) return stable results + + Options for the modifications stage + + -i mapfn --add-item id weight name [--loc type name ...] + insert an item into the hierarchy at the + given location + -i mapfn --update-item id weight name [--loc type name ...] + insert or move an item into the hierarchy at the + given location + -i mapfn --remove-item name + remove the given item + -i mapfn --reweight-item name weight + reweight a given item (and adjust ancestor + weights as needed) + -i mapfn --add-bucket name type [--loc type name ...] + insert a bucket into the hierarchy at the given + location + -i mapfn --move name --loc type name ... + move the given item to specified location + -i mapfn --reweight recalculate all bucket weights + -i mapfn --rebuild-class-roots + rebuild the per-class shadow trees (normally a no-op) + -i mapfn --create-simple-rule name root type mode + create crush rule <name> to start from <root>, + replicate across buckets of type <type>, using + a choose mode of <firstn|indep> + -i mapfn --create-replicated-rule name root type + create crush rule <name> to start from <root>, + replicate across buckets of type <type> + --device-class <class> + use device class <class> for new rule + -i mapfn --remove-rule name + remove the specified crush rule + + Options for the display/test stage + + -f --format the format of --dump, defaults to json-pretty + can be one of json, json-pretty, xml, xml-pretty, + table, table-kv, html, html-pretty + --dump dump the crush map + --tree print map summary as a tree + --check [max_id] check if any item is referencing an unknown name/type + -i mapfn --show-location id + show location for given device id + -i mapfn --test test a range of inputs on the map + [--min-x x] [--max-x x] [--x x] + [--min-rule r] [--max-rule r] [--rule r] [--ruleset rs] + [--num-rep n] + [--pool-id n] specifies pool id + [--batches b] split the CRUSH mapping into b > 1 rounds + [--weight|-w devno weight] + where weight is 0 to 1.0 + [--simulate] simulate placements using a random + number generator in place of the CRUSH + algorithm + --show-utilization show OSD usage + --show-utilization-all + include zero weight items + --show-statistics show chi squared statistics + --show-mappings show mappings + --show-bad-mappings show bad mappings + --show-choose-tries show choose tries histogram + --output-name name + prepend the data file(s) generated during the + testing routine with name + --output-csv + export select data generated during testing routine + to CSV files for off-line post-processing + use --help-output for more information + --reclassify transform legacy CRUSH map buckets and rules + by adding classes + --reclassify-bucket <bucket-match> <class> <default-parent> + --reclassify-root <bucket-name> <class> + --set-subtree-class <bucket-name> <class> + set class for all items beneath bucket-name + --compare <otherfile> compare two maps using --test parameters + + Options for the output stage + + [--outfn|-o outfile] + specify output for modified crush map + + + $ crushtool --help-output + data output from testing routine ... + absolute_weights + the decimal weight of each OSD + data layout: ROW MAJOR + OSD id (int), weight (int) + batch_device_expected_utilization_all + the expected number of objects each OSD should receive per placement batch + which may be a decimal value + data layout: COLUMN MAJOR + round (int), objects expected on OSD 0...OSD n (float) + batch_device_utilization_all + the number of objects stored on each OSD during each placement round + data layout: COLUMN MAJOR + round (int), objects stored on OSD 0...OSD n (int) + device_utilization_all + the number of objects stored on each OSD at the end of placements + data_layout: ROW MAJOR + OSD id (int), objects stored (int), objects expected (float) + device_utilization + the number of objects stored on each OSD marked 'up' at the end of placements + data_layout: ROW MAJOR + OSD id (int), objects stored (int), objects expected (float) + placement_information + the map of input -> OSD + data_layout: ROW MAJOR + input (int), OSD's mapped (int) + proportional_weights_all + the proportional weight of each OSD specified in the CRUSH map + data_layout: ROW MAJOR + OSD id (int), proportional weight (float) + proportional_weights + the proportional weight of each 'up' OSD specified in the CRUSH map + data_layout: ROW MAJOR + OSD id (int), proportional weight (float) |