1 // -*- mode:C++; tab-width:8; c-basic-offset:2; indent-tabs-mode:t -*-
2 // vim: ts=8 sw=2 smarttab
4 * Ceph - scalable distributed file system
6 * Copyright (C) 2004-2006 Sage Weil <sage@newdream.net>
7 * Copyright (C) 2014 Cloudwatt <libre.licensing@cloudwatt.com>
9 * Author: Loic Dachary <loic@dachary.org>
11 * This is free software; you can redistribute it and/or
12 * modify it under the terms of the GNU Lesser General Public
13 * License version 2.1, as published by the Free Software
14 * Foundation. See file COPYING.
18 #include <sys/types.h>
25 #include "common/debug.h"
26 #include "common/errno.h"
27 #include "common/config.h"
28 #include "common/Formatter.h"
30 #include "common/ceph_argparse.h"
31 #include "include/stringify.h"
32 #include "global/global_context.h"
33 #include "global/global_init.h"
34 #include "osd/OSDMap.h"
35 #include "crush/CrushWrapper.h"
36 #include "crush/CrushCompiler.h"
37 #include "crush/CrushTester.h"
38 #include "include/assert.h"
40 #define dout_context g_ceph_context
41 #define dout_subsys ceph_subsys_crush
45 const char *infn = "stdin";
47 static int get_fd_data(int fd, bufferlist &bl)
52 ssize_t bytes = bl.read_fd(fd, 1024*1024);
54 cerr << "read_fd error " << cpp_strerror(-bytes) << "\n";
64 assert(bl.length() == total);
68 ////////////////////////////////////////////////////////////////////////////
70 void data_analysis_usage()
72 cout << "data output from testing routine ...\n";
73 cout << " absolute_weights\n";
74 cout << " the decimal weight of each OSD\n";
75 cout << " data layout: ROW MAJOR\n";
76 cout << " OSD id (int), weight (int)\n";
77 cout << " batch_device_expected_utilization_all\n";
78 cout << " the expected number of objects each OSD should receive per placement batch\n";
79 cout << " which may be a decimal value\n";
80 cout << " data layout: COLUMN MAJOR\n";
81 cout << " round (int), objects expected on OSD 0...OSD n (float)\n";
82 cout << " batch_device_utilization_all\n";
83 cout << " the number of objects stored on each OSD during each placement round\n";
84 cout << " data layout: COLUMN MAJOR\n";
85 cout << " round (int), objects stored on OSD 0...OSD n (int)\n";
86 cout << " device_utilization_all\n";
87 cout << " the number of objects stored on each OSD at the end of placements\n";
88 cout << " data_layout: ROW MAJOR\n";
89 cout << " OSD id (int), objects stored (int), objects expected (float)\n";
90 cout << " device_utilization\n";
91 cout << " the number of objects stored on each OSD marked 'up' at the end of placements\n";
92 cout << " data_layout: ROW MAJOR\n";
93 cout << " OSD id (int), objects stored (int), objects expected (float)\n";
94 cout << " placement_information\n";
95 cout << " the map of input -> OSD\n";
96 cout << " data_layout: ROW MAJOR\n";
97 cout << " input (int), OSD's mapped (int)\n";
98 cout << " proportional_weights_all\n";
99 cout << " the proportional weight of each OSD specified in the CRUSH map\n";
100 cout << " data_layout: ROW MAJOR\n";
101 cout << " OSD id (int), proportional weight (float)\n";
102 cout << " proportional_weights\n";
103 cout << " the proportional weight of each 'up' OSD specified in the CRUSH map\n";
104 cout << " data_layout: ROW MAJOR\n";
105 cout << " OSD id (int), proportional weight (float)\n";
110 cout << "usage: crushtool ...\n";
112 cout << "Display, modify and test a crush map\n";
114 cout << "There are five stages, running one after the other:\n";
116 cout << " - input/build\n";
117 cout << " - tunables adjustments\n";
118 cout << " - modifications\n";
119 cout << " - display/test\n";
120 cout << " - output\n";
122 cout << "Options that are not specific to a stage.\n";
124 cout << " [--infn|-i infile]\n";
125 cout << " read the crush map from infile\n";
127 cout << "Options for the input/build stage\n";
129 cout << " --decompile|-d map decompile a crush map to source\n";
130 cout << " [--outfn|-o outfile]\n";
131 cout << " specify output for for (de)compilation\n";
132 cout << " --compile|-c map.txt compile a map from source\n";
133 cout << " --enable-unsafe-tunables\n";
134 cout << " compile with unsafe tunables\n";
135 cout << " --build --num_osds N layer1 ...\n";
136 cout << " build a new map, where each 'layer' is\n";
137 cout << " 'name (uniform|straw2|straw|list|tree) size'\n";
139 cout << "Options for the tunables adjustments stage\n";
141 cout << " --set-choose-local-tries N\n";
142 cout << " set choose local retries before re-descent\n";
143 cout << " --set-choose-local-fallback-tries N\n";
144 cout << " set choose local retries using fallback\n";
145 cout << " permutation before re-descent\n";
146 cout << " --set-choose-total-tries N\n";
147 cout << " set choose total descent attempts\n";
148 cout << " --set-chooseleaf-descend-once <0|1>\n";
149 cout << " set chooseleaf to (not) retry the recursive descent\n";
150 cout << " --set-chooseleaf-vary-r <0|1>\n";
151 cout << " set chooseleaf to (not) vary r based on parent\n";
152 cout << " --set-chooseleaf-stable <0|1>\n";
153 cout << " set chooseleaf firstn to (not) return stable results\n";
155 cout << "Options for the modifications stage\n";
157 cout << " -i mapfn --add-item id weight name [--loc type name ...]\n";
158 cout << " insert an item into the hierarchy at the\n";
159 cout << " given location\n";
160 cout << " -i mapfn --update-item id weight name [--loc type name ...]\n";
161 cout << " insert or move an item into the hierarchy at the\n";
162 cout << " given location\n";
163 cout << " -i mapfn --remove-item name\n"
164 << " remove the given item\n";
165 cout << " -i mapfn --reweight-item name weight\n";
166 cout << " reweight a given item (and adjust ancestor\n"
167 << " weights as needed)\n";
168 cout << " -i mapfn --reweight recalculate all bucket weights\n";
169 cout << " -i mapfn --create-simple-rule name root type mode\n"
170 << " create crush rule <name> to start from <root>,\n"
171 << " replicate across buckets of type <type>, using\n"
172 << " a choose mode of <firstn|indep>\n";
173 cout << " -i mapfn --create-replicated-rule name root type\n"
174 << " create crush rule <name> to start from <root>,\n"
175 << " replicate across buckets of type <type>\n";
176 cout << " --device-class <class>\n";
177 cout << " use device class <class> for new rule\n";
178 cout << " -i mapfn --remove-rule name\n"
179 << " remove the specified crush rule\n";
181 cout << "Options for the display/test stage\n";
183 cout << " -f --format the format of --dump, defaults to json-pretty\n";
184 cout << " can be one of json, json-pretty, xml, xml-pretty,\n";
185 cout << " table, table-kv, html, html-pretty\n";
186 cout << " --dump dump the crush map\n";
187 cout << " --tree print map summary as a tree\n";
188 cout << " --check [max_id] check if any item is referencing an unknown name/type\n";
189 cout << " -i mapfn --show-location id\n";
190 cout << " show location for given device id\n";
191 cout << " -i mapfn --test test a range of inputs on the map\n";
192 cout << " [--min-x x] [--max-x x] [--x x]\n";
193 cout << " [--min-rule r] [--max-rule r] [--rule r] [--ruleset rs]\n";
194 cout << " [--num-rep n]\n";
195 cout << " [--pool-id n] specifies pool id\n";
196 cout << " [--batches b] split the CRUSH mapping into b > 1 rounds\n";
197 cout << " [--weight|-w devno weight]\n";
198 cout << " where weight is 0 to 1.0\n";
199 cout << " [--simulate] simulate placements using a random\n";
200 cout << " number generator in place of the CRUSH\n";
201 cout << " algorithm\n";
202 cout << " --show-utilization show OSD usage\n";
203 cout << " --show-utilization-all\n";
204 cout << " include zero weight items\n";
205 cout << " --show-statistics show chi squared statistics\n";
206 cout << " --show-mappings show mappings\n";
207 cout << " --show-bad-mappings show bad mappings\n";
208 cout << " --show-choose-tries show choose tries histogram\n";
209 cout << " --output-name name\n";
210 cout << " prepend the data file(s) generated during the\n";
211 cout << " testing routine with name\n";
212 cout << " --output-csv\n";
213 cout << " export select data generated during testing routine\n";
214 cout << " to CSV files for off-line post-processing\n";
215 cout << " use --help-output for more information\n";
217 cout << "Options for the output stage\n";
219 cout << " [--outfn|-o outfile]\n";
220 cout << " specify output for modified crush map\n";
224 struct bucket_types_t {
228 { "uniform", CRUSH_BUCKET_UNIFORM },
229 { "list", CRUSH_BUCKET_LIST },
230 { "straw", CRUSH_BUCKET_STRAW },
231 { "straw2", CRUSH_BUCKET_STRAW2 },
232 { "tree", CRUSH_BUCKET_TREE },
238 const char *buckettype;
242 int main(int argc, const char **argv)
244 vector<const char*> args;
245 argv_to_vec(argc, argv, args);
247 const char *me = argv[0];
248 std::string infn, srcfn, outfn, add_name, remove_name, reweight_name;
249 bool compile = false;
250 bool decompile = false;
254 bool display = false;
256 string dump_format = "json-pretty";
258 int full_location = -1;
259 bool write_to_file = false;
261 bool unsafe_tunables = false;
263 bool reweight = false;
265 bool update_item = false;
266 bool add_rule = false;
267 std::string rule_name, rule_root, rule_type, rule_mode, rule_device_class;
268 bool del_rule = false;
269 float add_weight = 0;
270 map<string,string> add_loc;
271 float reweight_weight = 0;
277 vector<layer_t> layers;
279 int choose_local_tries = -1;
280 int choose_local_fallback_tries = -1;
281 int choose_total_tries = -1;
282 int chooseleaf_descend_once = -1;
283 int chooseleaf_vary_r = -1;
284 int chooseleaf_stable = -1;
285 int straw_calc_version = -1;
286 int allowed_bucket_algs = -1;
290 CrushTester tester(crush, cout);
292 // we use -c, don't confuse the generic arg parsing
293 // only parse arguments from CEPH_ARGS, if in the environment
294 vector<const char *> env_args;
295 env_to_vec(env_args);
296 auto cct = global_init(NULL, env_args, CEPH_ENTITY_TYPE_CLIENT,
297 CODE_ENVIRONMENT_UTILITY,
298 CINIT_FLAG_NO_DEFAULT_CONFIG_FILE);
299 // crushtool times out occasionally when quits. so do not
300 // release the g_ceph_context.
302 common_init_finish(g_ceph_context);
309 std::ostringstream err;
311 for (std::vector<const char*>::iterator i = args.begin(); i != args.end(); ) {
312 if (ceph_argparse_double_dash(args, i)) {
314 } else if (ceph_argparse_flag(args, i, "-h", "--help", (char*)NULL)) {
317 } else if (ceph_argparse_witharg(args, i, &val, "-d", "--decompile", (char*)NULL)) {
320 } else if (ceph_argparse_witharg(args, i, &val, "-i", "--infn", (char*)NULL)) {
322 } else if (ceph_argparse_witharg(args, i, &val, "-o", "--outfn", (char*)NULL)) {
324 } else if (ceph_argparse_flag(args, i, "-v", "--verbose", (char*)NULL)) {
326 } else if (ceph_argparse_flag(args, i, "--tree", (char*)NULL)) {
328 } else if (ceph_argparse_witharg(args, i, &val, "-f", "--format", (char*)NULL)) {
330 } else if (ceph_argparse_flag(args, i, "--dump", (char*)NULL)) {
332 } else if (ceph_argparse_flag(args, i, "--show_utilization", (char*)NULL)) {
334 tester.set_output_utilization(true);
335 } else if (ceph_argparse_flag(args, i, "--show_utilization_all", (char*)NULL)) {
337 tester.set_output_utilization_all(true);
338 } else if (ceph_argparse_flag(args, i, "--show_statistics", (char*)NULL)) {
340 tester.set_output_statistics(true);
341 } else if (ceph_argparse_flag(args, i, "--show_mappings", (char*)NULL)) {
343 tester.set_output_mappings(true);
344 } else if (ceph_argparse_flag(args, i, "--show_bad_mappings", (char*)NULL)) {
346 tester.set_output_bad_mappings(true);
347 } else if (ceph_argparse_flag(args, i, "--show_choose_tries", (char*)NULL)) {
349 tester.set_output_choose_tries(true);
350 } else if (ceph_argparse_witharg(args, i, &val, "-c", "--compile", (char*)NULL)) {
353 } else if (ceph_argparse_witharg(args, i, &max_id, err, "--check", (char*)NULL)) {
355 } else if (ceph_argparse_flag(args, i, "-t", "--test", (char*)NULL)) {
357 } else if (ceph_argparse_witharg(args, i, &full_location, err, "--show-location", (char*)NULL)) {
358 } else if (ceph_argparse_flag(args, i, "-s", "--simulate", (char*)NULL)) {
359 tester.set_random_placement();
360 } else if (ceph_argparse_flag(args, i, "--enable-unsafe-tunables", (char*)NULL)) {
361 unsafe_tunables = true;
362 } else if (ceph_argparse_witharg(args, i, &choose_local_tries, err,
363 "--set_choose_local_tries", (char*)NULL)) {
365 } else if (ceph_argparse_witharg(args, i, &choose_local_fallback_tries, err,
366 "--set_choose_local_fallback_tries", (char*)NULL)) {
368 } else if (ceph_argparse_witharg(args, i, &choose_total_tries, err,
369 "--set_choose_total_tries", (char*)NULL)) {
371 } else if (ceph_argparse_witharg(args, i, &chooseleaf_descend_once, err,
372 "--set_chooseleaf_descend_once", (char*)NULL)) {
374 } else if (ceph_argparse_witharg(args, i, &chooseleaf_vary_r, err,
375 "--set_chooseleaf_vary_r", (char*)NULL)) {
377 } else if (ceph_argparse_witharg(args, i, &chooseleaf_stable, err,
378 "--set_chooseleaf_stable", (char*)NULL)) {
380 } else if (ceph_argparse_witharg(args, i, &straw_calc_version, err,
381 "--set_straw_calc_version", (char*)NULL)) {
383 } else if (ceph_argparse_witharg(args, i, &allowed_bucket_algs, err,
384 "--set_allowed_bucket_algs", (char*)NULL)) {
386 } else if (ceph_argparse_flag(args, i, "--reweight", (char*)NULL)) {
388 } else if (ceph_argparse_witharg(args, i, &add_item, err, "--add_item", (char*)NULL)) {
389 if (!err.str().empty()) {
390 cerr << err.str() << std::endl;
393 if (i == args.end()) {
394 cerr << "expecting additional argument to --add-item" << std::endl;
397 add_weight = atof(*i);
399 if (i == args.end()) {
400 cerr << "expecting additional argument to --add-item" << std::endl;
405 } else if (ceph_argparse_witharg(args, i, &add_item, err, "--update_item", (char*)NULL)) {
407 if (!err.str().empty()) {
408 cerr << err.str() << std::endl;
411 if (i == args.end()) {
412 cerr << "expecting additional argument to --update-item" << std::endl;
415 add_weight = atof(*i);
417 if (i == args.end()) {
418 cerr << "expecting additional argument to --update-item" << std::endl;
423 } else if (ceph_argparse_witharg(args, i, &val, err, "--create-simple-rule", (char*)NULL)) {
424 rule_name.assign(val);
425 if (!err.str().empty()) {
426 cerr << err.str() << std::endl;
429 if (i == args.end()) {
430 cerr << "expecting additional argument to --create-simple-rule" << std::endl;
434 rule_root.assign(*i);
436 if (i == args.end()) {
437 cerr << "expecting additional argument to --create-simple-rule" << std::endl;
441 rule_type.assign(*i);
443 if (i == args.end()) {
444 cerr << "expecting additional argument to --create-simple-rule" << std::endl;
448 rule_mode.assign(*i);
451 cout << "--create-simple-rule:"
452 << " name=" << rule_name
453 << " root=" << rule_root
454 << " type=" << rule_type
455 << " mode=" << rule_mode
458 } else if (ceph_argparse_witharg(args, i, &val, err, "--create-replicated-rule", (char*)NULL)) {
459 rule_name.assign(val);
460 if (!err.str().empty()) {
461 cerr << err.str() << std::endl;
464 if (i == args.end()) {
465 cerr << "expecting additional argument to --create-replicated-rule" << std::endl;
469 rule_root.assign(*i);
471 if (i == args.end()) {
472 cerr << "expecting additional argument to --create-replicated-rule" << std::endl;
476 rule_type.assign(*i);
478 rule_mode = "firstn";
480 cout << "--create-replicated-rule:"
481 << " name=" << rule_name
482 << " root=" << rule_root
483 << " type=" << rule_type
487 } else if (ceph_argparse_witharg(args, i, &val, "--device-class", (char*)NULL)) {
488 rule_device_class.assign(val);
489 if (!err.str().empty()) {
490 cerr << err.str() << std::endl;
493 } else if (ceph_argparse_witharg(args, i, &val, "--remove-rule", (char*)NULL)) {
494 rule_name.assign(val);
495 if (!err.str().empty()) {
496 cerr << err.str() << std::endl;
500 } else if (ceph_argparse_witharg(args, i, &val, "--loc", (char*)NULL)) {
501 std::string type(val);
502 if (i == args.end()) {
503 cerr << "expecting additional argument to --loc" << std::endl;
506 std::string name(*i);
508 add_loc[type] = name;
509 } else if (ceph_argparse_flag(args, i, "--output-csv", (char*)NULL)) {
510 write_to_file = true;
511 tester.set_output_data_file(true);
512 tester.set_output_csv(true);
513 } else if (ceph_argparse_flag(args, i, "--help-output", (char*)NULL)) {
514 data_analysis_usage();
516 } else if (ceph_argparse_witharg(args, i, &val, "--output-name", (char*)NULL)) {
517 std::string name(val);
518 if (i == args.end()) {
519 cerr << "expecting additional argument to --output-name" << std::endl;
523 tester.set_output_data_file_name(name + "-");
525 } else if (ceph_argparse_witharg(args, i, &val, "--remove_item", (char*)NULL)) {
527 } else if (ceph_argparse_witharg(args, i, &val, "--reweight_item", (char*)NULL)) {
529 if (i == args.end()) {
530 cerr << "expecting additional argument to --reweight-item" << std::endl;
533 reweight_weight = atof(*i);
535 } else if (ceph_argparse_flag(args, i, "--build", (char*)NULL)) {
537 } else if (ceph_argparse_witharg(args, i, &num_osds, err, "--num_osds", (char*)NULL)) {
538 if (!err.str().empty()) {
539 cerr << err.str() << std::endl;
542 } else if (ceph_argparse_witharg(args, i, &x, err, "--num_rep", (char*)NULL)) {
543 if (!err.str().empty()) {
544 cerr << err.str() << std::endl;
547 tester.set_num_rep(x);
548 } else if (ceph_argparse_witharg(args, i, &x, err, "--max_x", (char*)NULL)) {
549 if (!err.str().empty()) {
550 cerr << err.str() << std::endl;
554 } else if (ceph_argparse_witharg(args, i, &x, err, "--min_x", (char*)NULL)) {
555 if (!err.str().empty()) {
556 cerr << err.str() << std::endl;
560 } else if (ceph_argparse_witharg(args, i, &z, err, "--pool_id", (char*)NULL)) {
561 if (!err.str().empty()) {
562 cerr << err.str() << std::endl;
565 tester.set_pool_id(z);
566 } else if (ceph_argparse_witharg(args, i, &x, err, "--x", (char*)NULL)) {
567 if (!err.str().empty()) {
568 cerr << err.str() << std::endl;
572 } else if (ceph_argparse_witharg(args, i, &x, err, "--max_rule", (char*)NULL)) {
573 if (!err.str().empty()) {
574 cerr << err.str() << std::endl;
577 tester.set_max_rule(x);
578 } else if (ceph_argparse_witharg(args, i, &x, err, "--min_rule", (char*)NULL)) {
579 if (!err.str().empty()) {
580 cerr << err.str() << std::endl;
583 tester.set_min_rule(x);
584 } else if (ceph_argparse_witharg(args, i, &x, err, "--rule", (char*)NULL)) {
585 if (!err.str().empty()) {
586 cerr << err.str() << std::endl;
590 } else if (ceph_argparse_witharg(args, i, &x, err, "--ruleset", (char*)NULL)) {
591 if (!err.str().empty()) {
592 cerr << err.str() << std::endl;
595 tester.set_ruleset(x);
596 } else if (ceph_argparse_witharg(args, i, &x, err, "--batches", (char*)NULL)) {
597 if (!err.str().empty()) {
598 cerr << err.str() << std::endl;
601 tester.set_batches(x);
602 } else if (ceph_argparse_witharg(args, i, &y, err, "--mark-down-ratio", (char*)NULL)) {
603 if (!err.str().empty()) {
604 cerr << err.str() << std::endl;
607 tester.set_device_down_ratio(y);
608 } else if (ceph_argparse_witharg(args, i, &y, err, "--mark-down-bucket-ratio", (char*)NULL)) {
609 if (!err.str().empty()) {
610 cerr << err.str() << std::endl;
613 tester.set_bucket_down_ratio(y);
614 } else if (ceph_argparse_witharg(args, i, &tmp, err, "--weight", (char*)NULL)) {
615 if (!err.str().empty()) {
616 cerr << err.str() << std::endl;
620 if (i == args.end()) {
621 cerr << "expecting additional argument to --weight" << std::endl;
626 tester.set_device_weight(dev, f);
633 if (test && !check && !display && !write_to_file) {
634 cerr << "WARNING: no output selected; use --output-csv or --show-X" << std::endl;
637 if (decompile + compile + build > 1) {
638 cerr << "cannot specify more than one of compile, decompile, and build" << std::endl;
641 if (!check && !compile && !decompile && !build && !test && !reweight && !adjust && !tree && !dump &&
642 add_item < 0 && !add_rule && !del_rule && full_location < 0 &&
643 remove_name.empty() && reweight_name.empty()) {
644 cerr << "no action specified; -h for help" << std::endl;
647 if ((!build) && (!args.empty())) {
648 cerr << "unrecognized arguments: " << args << std::endl;
652 if ((args.size() % 3) != 0U) {
653 cerr << "remaining args: " << args << std::endl;
654 cerr << "layers must be specified with 3-tuples of (name, buckettype, size)"
658 for (size_t j = 0; j < args.size(); j += 3) {
661 l.buckettype = args[j+1];
662 l.size = atoi(args[j+2]);
668 if (outfn) cout << "outfn " << outfn << std::endl;
669 if (cinfn) cout << "cinfn " << cinfn << std::endl;
670 if (dinfn) cout << "dinfn " << dinfn << std::endl;
673 bool modified = false;
683 if (isatty(STDIN_FILENO)) {
684 cerr << "stdin must not be from a tty" << std::endl;
687 r = get_fd_data(STDIN_FILENO, bl);
689 cerr << "error reading data from STDIN" << std::endl;
693 r = bl.read_file(infn.c_str(), &error);
695 cerr << me << ": error reading '" << infn << "': "
696 << error << std::endl;
700 bufferlist::iterator p = bl.begin();
704 cerr << me << ": unable to decode " << infn << std::endl;
713 ifstream in(srcfn.c_str());
715 cerr << "input file " << srcfn << " not found" << std::endl;
719 CrushCompiler cc(crush, cerr, verbose);
721 cc.enable_unsafe_tunables();
722 int r = cc.compile(in, srcfn.c_str());
730 if (layers.empty()) {
731 cerr << me << ": must specify at least one layer" << std::endl;
737 vector<int> lower_items;
738 vector<int> lower_weights;
740 crush.set_max_devices(num_osds);
741 for (int i=0; i<num_osds; i++) {
742 lower_items.push_back(i);
743 lower_weights.push_back(0x10000);
744 crush.set_item_name(i, "osd." + stringify(i));
747 crush.set_type_name(0, "osd");
749 for (vector<layer_t>::iterator p = layers.begin(); p != layers.end(); ++p, type++) {
752 dout(2) << "layer " << type
754 << " bucket type " << l.buckettype
758 crush.set_type_name(type, l.name);
761 for (int i = 0; bucket_types[i].name; i++)
762 if (l.buckettype && strcmp(l.buckettype, bucket_types[i].name) == 0) {
763 buckettype = bucket_types[i].type;
766 if (buckettype < 0) {
767 cerr << "unknown bucket type '" << l.buckettype << "'" << std::endl;
772 vector<int> cur_items;
773 vector<int> cur_weights;
774 unsigned lower_pos = 0; // lower pos
776 dout(2) << "lower_items " << lower_items << dendl;
777 dout(2) << "lower_weights " << lower_weights << dendl;
781 if (lower_pos == lower_items.size())
785 int weights[num_osds];
789 for (j=0; j<l.size || l.size==0; j++) {
790 if (lower_pos == lower_items.size())
792 items[j] = lower_items[lower_pos];
793 weights[j] = lower_weights[lower_pos];
794 weight += weights[j];
796 dout(2) << " item " << items[j] << " weight " << weights[j] << dendl;
800 int r = crush.add_bucket(0, buckettype, CRUSH_HASH_DEFAULT, type, j, items, weights, &id);
802 cerr << " Couldn't add bucket: " << cpp_strerror(r) << std::endl;
807 format[sizeof(format)-1] = '\0';
809 snprintf(format, sizeof(format)-1, "%s%%d", l.name);
811 strncpy(format, l.name, sizeof(format)-1);
813 snprintf(name, sizeof(name), format, i);
814 crush.set_item_name(id, name);
816 dout(2) << " in bucket " << id << " '" << name << "' size " << j << " weight " << weight << dendl;
818 cur_items.push_back(id);
819 cur_weights.push_back(weight);
823 lower_items.swap(cur_items);
824 lower_weights.swap(cur_weights);
827 string root = layers.back().size == 0 ? layers.back().name :
828 string(layers.back().name) + "0";
832 crush.find_roots(&roots);
833 if (roots.size() > 1) {
834 cerr << "The crush rulesets will use the root " << root << "\n"
835 << "and ignore the others.\n"
836 << "There are " << roots.size() << " roots, they can be\n"
837 << "grouped into a single root by appending something like:\n"
843 if (OSDMap::build_simple_crush_rules(g_ceph_context, crush, root, &cerr))
851 if (choose_local_tries >= 0) {
852 crush.set_choose_local_tries(choose_local_tries);
855 if (choose_local_fallback_tries >= 0) {
856 crush.set_choose_local_fallback_tries(choose_local_fallback_tries);
859 if (choose_total_tries >= 0) {
860 crush.set_choose_total_tries(choose_total_tries);
863 if (chooseleaf_descend_once >= 0) {
864 crush.set_chooseleaf_descend_once(chooseleaf_descend_once);
867 if (chooseleaf_vary_r >= 0) {
868 crush.set_chooseleaf_vary_r(chooseleaf_vary_r);
871 if (chooseleaf_stable >= 0) {
872 crush.set_chooseleaf_stable(chooseleaf_stable);
875 if (straw_calc_version >= 0) {
876 crush.set_straw_calc_version(straw_calc_version);
879 if (allowed_bucket_algs >= 0) {
880 crush.set_allowed_bucket_algs(allowed_bucket_algs);
884 if (!reweight_name.empty()) {
885 cout << me << " reweighting item " << reweight_name << " to " << reweight_weight << std::endl;
887 if (!crush.name_exists(reweight_name)) {
888 cerr << " name " << reweight_name << " dne" << std::endl;
891 int item = crush.get_item_id(reweight_name);
892 r = crush.adjust_item_weightf(g_ceph_context, item, reweight_weight);
897 cerr << me << " " << cpp_strerror(r) << std::endl;
902 if (!remove_name.empty()) {
903 cout << me << " removing item " << remove_name << std::endl;
905 if (!crush.name_exists(remove_name)) {
906 cerr << " name " << remove_name << " dne" << std::endl;
909 int remove_item = crush.get_item_id(remove_name);
910 r = crush.remove_item(g_ceph_context, remove_item, false);
915 cerr << me << " " << cpp_strerror(r) << std::endl;
923 r = crush.update_item(g_ceph_context, add_item, add_weight, add_name.c_str(), add_loc);
925 r = crush.insert_item(g_ceph_context, add_item, add_weight, add_name.c_str(), add_loc);
930 cerr << me << " " << cpp_strerror(r) << std::endl;
936 if (crush.rule_exists(rule_name)) {
937 cerr << "rule " << rule_name << " already exists" << std::endl;
940 int r = crush.add_simple_rule(rule_name, rule_root, rule_type,
942 rule_mode, pg_pool_t::TYPE_REPLICATED, &err);
944 cerr << err.str() << std::endl;
951 if (!crush.rule_exists(rule_name)) {
952 cerr << "rule " << rule_name << " does not exist" << std::endl;
955 int ruleno = crush.get_rule_id(rule_name);
957 int r = crush.remove_rule(ruleno);
959 cerr << "fail to remove rule " << rule_name << std::endl;
966 crush.reweight(g_ceph_context);
972 if (full_location >= 0) {
973 map<string, string> loc = crush.get_full_location(full_location);
974 for (map<string,string>::iterator p = loc.begin();
977 cout << p->first << "\t" << p->second << std::endl;
982 crush.dump_tree(&cout, NULL);
986 boost::scoped_ptr<Formatter> f(Formatter::create(dump_format, "json-pretty", "json-pretty"));
987 f->open_object_section("crush_map");
995 CrushCompiler cc(crush, cerr, verbose);
996 if (!outfn.empty()) {
998 o.open(outfn.c_str(), ios::out | ios::binary | ios::trunc);
1000 cerr << me << ": error writing '" << outfn << "'" << std::endl;
1001 return EXIT_FAILURE;
1011 tester.check_overlapped_rules();
1013 if (!tester.check_name_maps(max_id)) {
1014 return EXIT_FAILURE;
1020 if (tester.get_output_utilization_all() ||
1021 tester.get_output_utilization())
1022 tester.set_output_statistics(true);
1024 int r = tester.test();
1026 return EXIT_FAILURE;
1033 if (outfn.empty()) {
1034 cout << me << " successfully built or modified map. Use '-o <file>' to write it out." << std::endl;
1037 crush.encode(bl, CEPH_FEATURES_SUPPORTED_DEFAULT);
1038 int r = bl.write_file(outfn.c_str());
1040 cerr << me << ": error writing '" << outfn << "': " << cpp_strerror(r) << std::endl;
1041 return EXIT_FAILURE;
1044 cout << "wrote crush map to " << outfn << std::endl;
1052 * compile-command: "cd .. ; make crushtool && test/run-cli-tests"