mirror of
https://github.com/ceph/ceph
synced 2024-12-16 16:39:21 +00:00
344 lines
9.9 KiB
C++
344 lines
9.9 KiB
C++
// -*- mode:C++; tab-width:8; c-basic-offset:2; indent-tabs-mode:t -*-
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// vim: ts=8 sw=2 smarttab
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/*
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* Ceph - scalable distributed file system
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*
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* Copyright (C) 2004-2006 Sage Weil <sage@newdream.net>
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*
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* This is free software; you can redistribute it and/or
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* modify it under the terms of the GNU Lesser General Public
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* License version 2.1, as published by the Free Software
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* Foundation. See file COPYING.
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*
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*/
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#include <sys/types.h>
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#include <sys/stat.h>
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#include <fcntl.h>
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#include <errno.h>
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#include <iostream>
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#include <string>
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using namespace std;
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#include "common/config.h"
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#include "common/errno.h"
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#include "osd/OSDMap.h"
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#include "mon/MonMap.h"
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#include "common/ceph_argparse.h"
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#include "global/global_init.h"
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void usage()
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{
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cout << " usage: [--print] [--createsimple <numosd> [--clobber] [--pg_bits <bitsperosd>]] <mapfilename>" << std::endl;
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cout << " --export-crush <file> write osdmap's crush map to <file>" << std::endl;
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cout << " --import-crush <file> replace osdmap's crush map with <file>" << std::endl;
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cout << " --test-map-pg <pgid> map a pgid to osds" << std::endl;
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cout << " --test-map-object <objectname> [--pool <poolid>] map an object to osds"
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<< std::endl;
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exit(1);
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}
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int main(int argc, const char **argv)
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{
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vector<const char*> args;
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argv_to_vec(argc, argv, args);
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env_to_vec(args);
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global_init(NULL, args, CEPH_ENTITY_TYPE_CLIENT, CODE_ENVIRONMENT_UTILITY,
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CINIT_FLAG_NO_DEFAULT_CONFIG_FILE);
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common_init_finish(g_ceph_context);
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const char *me = argv[0];
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std::string fn;
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bool print = false;
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bool print_json = false;
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bool tree = false;
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bool createsimple = false;
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bool create_from_conf = false;
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int num_osd = 0;
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int pg_bits = g_conf->osd_pg_bits;
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int pgp_bits = g_conf->osd_pgp_bits;
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bool clobber = false;
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bool modified = false;
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std::string export_crush, import_crush, test_map_pg, test_map_object;
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bool test_crush = false;
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int range_first = -1;
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int range_last = -1;
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int pool = 0;
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std::string val;
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std::ostringstream err;
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for (std::vector<const char*>::iterator i = args.begin(); i != args.end(); ) {
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if (ceph_argparse_double_dash(args, i)) {
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break;
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} else if (ceph_argparse_flag(args, i, "-h", "--help", (char*)NULL)) {
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usage();
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} else if (ceph_argparse_flag(args, i, "-p", "--print", (char*)NULL)) {
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print = true;
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} else if (ceph_argparse_flag(args, i, "--dump-json", (char*)NULL)) {
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print_json = true;
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} else if (ceph_argparse_flag(args, i, "--tree", (char*)NULL)) {
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tree = true;
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} else if (ceph_argparse_withint(args, i, &num_osd, &err, "--createsimple", (char*)NULL)) {
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if (!err.str().empty()) {
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cerr << err.str() << std::endl;
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exit(EXIT_FAILURE);
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}
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createsimple = true;
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} else if (ceph_argparse_flag(args, i, "--create-from-conf", (char*)NULL)) {
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create_from_conf = true;
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} else if (ceph_argparse_flag(args, i, "--clobber", (char*)NULL)) {
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clobber = true;
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} else if (ceph_argparse_withint(args, i, &pg_bits, &err, "--pg_bits", (char*)NULL)) {
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if (!err.str().empty()) {
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cerr << err.str() << std::endl;
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exit(EXIT_FAILURE);
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}
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} else if (ceph_argparse_withint(args, i, &pgp_bits, &err, "--pgp_bits", (char*)NULL)) {
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if (!err.str().empty()) {
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cerr << err.str() << std::endl;
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exit(EXIT_FAILURE);
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}
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} else if (ceph_argparse_witharg(args, i, &val, "--export_crush", (char*)NULL)) {
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export_crush = val;
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} else if (ceph_argparse_witharg(args, i, &val, "--import_crush", (char*)NULL)) {
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import_crush = val;
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} else if (ceph_argparse_witharg(args, i, &val, "--test_map_pg", (char*)NULL)) {
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test_map_pg = val;
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} else if (ceph_argparse_witharg(args, i, &val, "--test_map_object", (char*)NULL)) {
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test_map_object = val;
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} else if (ceph_argparse_flag(args, i, "--test_crush", (char*)NULL)) {
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test_crush = true;
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} else if (ceph_argparse_withint(args, i, &range_first, &err, "--range_first", (char*)NULL)) {
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} else if (ceph_argparse_withint(args, i, &range_last, &err, "--range_last", (char*)NULL)) {
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} else if (ceph_argparse_withint(args, i, &pool, &err, "--pool", (char*)NULL)) {
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} else {
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++i;
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}
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}
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if (args.empty()) {
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cerr << me << ": must specify osdmap filename" << std::endl;
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usage();
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}
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else if (args.size() > 1) {
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cerr << me << ": too many arguments" << std::endl;
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usage();
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}
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fn = args[0];
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if (range_first >= 0 && range_last >= 0) {
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set<OSDMap*> maps;
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OSDMap *prev = NULL;
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for (int i=range_first; i <= range_last; i++) {
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ostringstream f;
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f << fn << "/" << i;
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bufferlist bl;
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string error, s = f.str();
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int r = bl.read_file(s.c_str(), &error);
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if (r < 0) {
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cerr << "unable to read " << s << ": " << cpp_strerror(r) << std::endl;
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exit(1);
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}
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cout << s << " got " << bl.length() << " bytes" << std::endl;
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OSDMap *o = new OSDMap;
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o->decode(bl);
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maps.insert(o);
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if (prev)
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OSDMap::dedup(prev, o);
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prev = o;
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}
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exit(0);
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}
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OSDMap osdmap;
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bufferlist bl;
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cout << me << ": osdmap file '" << fn << "'" << std::endl;
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int r = 0;
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struct stat st;
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if (!createsimple && !create_from_conf && !clobber) {
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std::string error;
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r = bl.read_file(fn.c_str(), &error);
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if (r == 0) {
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try {
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osdmap.decode(bl);
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}
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catch (const buffer::error &e) {
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cerr << me << ": error decoding osdmap '" << fn << "'" << std::endl;
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return -1;
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}
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}
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else {
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cerr << me << ": couldn't open " << fn << ": " << error << std::endl;
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return -1;
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}
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}
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else if ((createsimple || create_from_conf) && !clobber && ::stat(fn.c_str(), &st) == 0) {
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cerr << me << ": " << fn << " exists, --clobber to overwrite" << std::endl;
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return -1;
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}
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if (createsimple) {
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if (num_osd < 1) {
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cerr << me << ": osd count must be > 0" << std::endl;
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exit(1);
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}
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uuid_d fsid;
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memset(&fsid, 0, sizeof(uuid_d));
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osdmap.build_simple(g_ceph_context, 0, fsid, num_osd, pg_bits, pgp_bits);
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modified = true;
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}
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if (create_from_conf) {
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uuid_d fsid;
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memset(&fsid, 0, sizeof(uuid_d));
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int r = osdmap.build_simple_from_conf(g_ceph_context, 0, fsid, pg_bits, pgp_bits);
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if (r < 0)
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return -1;
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modified = true;
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}
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if (!import_crush.empty()) {
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bufferlist cbl;
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std::string error;
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r = cbl.read_file(import_crush.c_str(), &error);
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if (r) {
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cerr << me << ": error reading crush map from " << import_crush
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<< ": " << error << std::endl;
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exit(1);
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}
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// validate
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CrushWrapper cw;
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bufferlist::iterator p = cbl.begin();
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cw.decode(p);
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if (cw.get_max_devices() > osdmap.get_max_osd()) {
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cerr << me << ": crushmap max_devices " << cw.get_max_devices()
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<< " > osdmap max_osd " << osdmap.get_max_osd() << std::endl;
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exit(1);
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}
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// apply
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OSDMap::Incremental inc;
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inc.fsid = osdmap.get_fsid();
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inc.epoch = osdmap.get_epoch()+1;
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inc.crush = cbl;
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osdmap.apply_incremental(inc);
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cout << me << ": imported " << cbl.length() << " byte crush map from " << import_crush << std::endl;
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modified = true;
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}
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if (!export_crush.empty()) {
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bufferlist cbl;
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osdmap.crush->encode(cbl);
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r = cbl.write_file(export_crush.c_str());
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if (r < 0) {
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cerr << me << ": error writing crush map to " << import_crush << std::endl;
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exit(1);
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}
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cout << me << ": exported crush map to " << export_crush << std::endl;
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}
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if (!test_map_object.empty()) {
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object_t oid(test_map_object);
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if (!osdmap.have_pg_pool(pool)) {
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cerr << "There is no pool " << pool << std::endl;
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exit(1);
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}
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object_locator_t loc(pool);
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pg_t raw_pgid = osdmap.object_locator_to_pg(oid, loc);
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pg_t pgid = osdmap.raw_pg_to_pg(raw_pgid);
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vector<int> acting;
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osdmap.pg_to_acting_osds(pgid, acting);
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cout << " object '" << oid
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<< "' -> " << pgid
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<< " -> " << acting
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<< std::endl;
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}
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if (!test_map_pg.empty()) {
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pg_t pgid;
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if (!pgid.parse(test_map_pg.c_str())) {
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cerr << me << ": failed to parse pg '" << test_map_pg
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<< "', r = " << r << std::endl;
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usage();
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}
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cout << " parsed '" << test_map_pg << "' -> " << pgid << std::endl;
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vector<int> raw, up, acting;
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osdmap.pg_to_osds(pgid, raw);
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osdmap.pg_to_up_acting_osds(pgid, up, acting);
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cout << pgid << " raw " << raw << " up " << up << " acting " << acting << std::endl;
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}
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if (test_crush) {
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int pass = 0;
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while (1) {
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cout << "pass " << ++pass << std::endl;
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hash_map<pg_t,vector<int> > m;
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for (map<int64_t,pg_pool_t>::const_iterator p = osdmap.get_pools().begin();
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p != osdmap.get_pools().end();
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++p) {
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const pg_pool_t *pool = osdmap.get_pg_pool(p->first);
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for (ps_t ps = 0; ps < pool->get_pg_num(); ps++) {
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pg_t pgid(ps, p->first, -1);
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for (int i=0; i<100; i++) {
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cout << pgid << " attempt " << i << std::endl;
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vector<int> r;
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osdmap.pg_to_acting_osds(pgid, r);
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//cout << pgid << " " << r << std::endl;
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if (m.count(pgid)) {
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if (m[pgid] != r) {
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cout << pgid << " had " << m[pgid] << " now " << r << std::endl;
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assert(0);
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}
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} else
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m[pgid] = r;
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}
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}
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}
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}
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}
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if (!print && !print_json && !tree && !modified &&
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export_crush.empty() && import_crush.empty() &&
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test_map_pg.empty() && test_map_object.empty()) {
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cerr << me << ": no action specified?" << std::endl;
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usage();
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}
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if (modified)
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osdmap.inc_epoch();
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if (print)
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osdmap.print(cout);
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if (print_json)
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osdmap.dump_json(cout);
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if (tree)
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osdmap.print_tree(&cout, NULL);
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if (modified) {
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bl.clear();
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osdmap.encode(bl);
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// write it out
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cout << me << ": writing epoch " << osdmap.get_epoch()
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<< " to " << fn
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<< std::endl;
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int r = bl.write_file(fn.c_str());
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if (r) {
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cerr << "osdmaptool: error writing to '" << fn << "': "
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<< cpp_strerror(r) << std::endl;
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return 1;
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}
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}
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return 0;
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}
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