--- /dev/null
+// -*- mode:C++; tab-width:8; c-basic-offset:2; indent-tabs-mode:t -*-
+// vim: ts=8 sw=2 smarttab
+/*
+* Ceph - scalable distributed file system
+*
+* Copyright (C) 2012 Inktank, Inc.
+*
+* This is free software; you can redistribute it and/or
+* modify it under the terms of the GNU Lesser General Public
+* License version 2.1, as published by the Free Software
+* Foundation. See file COPYING.
+*/
+#include <map>
+#include <set>
+#include <string>
+
+#include <boost/scoped_ptr.hpp>
+
+#include "common/ceph_argparse.h"
+#include "common/config.h"
+#include "common/errno.h"
+#include "common/strtol.h"
+#include "global/global_context.h"
+#include "global/global_init.h"
+#include "include/stringify.h"
+#include "include/utime.h"
+#include "common/Clock.h"
+#include "kv/KeyValueDB.h"
+#include "common/url_escape.h"
+
+#ifdef HAVE_LIBAIO
+#include "os/bluestore/BlueStore.h"
+#endif
+
+using namespace std;
+
+class StoreTool
+{
+ boost::scoped_ptr<BlueStore> bluestore;
+
+ // TODO: make KeyValueDB enable_shared_from_this
+ // bluestore will hold *db* also, use unique_ptr/shared_ptr will
+ // double free.
+ KeyValueDB* db;
+
+ string store_path;
+
+ public:
+ StoreTool(string type, const string &path) : store_path(path) {
+ KeyValueDB *db_ptr;
+ if (type == "bluestore-kv") {
+#ifdef HAVE_LIBAIO
+ // note: we'll leak this! the only user is ceph-kvstore-tool and
+ // we don't care.
+ bluestore.reset(new BlueStore(g_ceph_context, path));
+ int r = bluestore->start_kv_only(&db_ptr);
+ if (r < 0) {
+ exit(1);
+ }
+#else
+ cerr << "bluestore not compiled in" << std::endl;
+ exit(1);
+#endif
+ } else {
+ db_ptr = KeyValueDB::create(g_ceph_context, type, path);
+ int r = db_ptr->open(std::cerr);
+ if (r < 0) {
+ cerr << "failed to open type " << type << " path " << path << ": "
+ << cpp_strerror(r) << std::endl;
+ exit(1);
+ }
+ }
+ db = db_ptr;
+ }
+
+ ~StoreTool() {
+ if (bluestore) {
+ bluestore->umount();
+ }
+ else {
+ if (db) {
+ delete db;
+ }
+ }
+ }
+
+ uint32_t traverse(const string &prefix,
+ const bool do_crc,
+ ostream *out) {
+ KeyValueDB::WholeSpaceIterator iter = db->get_iterator();
+
+ if (prefix.empty())
+ iter->seek_to_first();
+ else
+ iter->seek_to_first(prefix);
+
+ uint32_t crc = -1;
+
+ while (iter->valid()) {
+ pair<string,string> rk = iter->raw_key();
+ if (!prefix.empty() && (rk.first != prefix))
+ break;
+
+ if (out)
+ *out << url_escape(rk.first) << "\t" << url_escape(rk.second);
+ if (do_crc) {
+ bufferlist bl;
+ bl.append(rk.first);
+ bl.append(rk.second);
+ bl.append(iter->value());
+
+ crc = bl.crc32c(crc);
+ if (out) {
+ *out << "\t" << bl.crc32c(0);
+ }
+ }
+ if (out)
+ *out << std::endl;
+ iter->next();
+ }
+
+ return crc;
+ }
+
+ void list(const string &prefix, const bool do_crc) {
+ traverse(prefix, do_crc, &std::cout);
+ }
+
+ bool exists(const string &prefix) {
+ assert(!prefix.empty());
+ KeyValueDB::WholeSpaceIterator iter = db->get_iterator();
+ iter->seek_to_first(prefix);
+ return (iter->valid() && (iter->raw_key().first == prefix));
+ }
+
+ bool exists(const string &prefix, const string &key) {
+ assert(!prefix.empty());
+
+ if (key.empty()) {
+ return exists(prefix);
+ }
+
+ bool exists = false;
+ get(prefix, key, exists);
+ return exists;
+ }
+
+ bufferlist get(const string &prefix, const string &key, bool &exists) {
+ assert(!prefix.empty() && !key.empty());
+
+ map<string,bufferlist> result;
+ std::set<std::string> keys;
+ keys.insert(key);
+ db->get(prefix, keys, &result);
+
+ if (result.count(key) > 0) {
+ exists = true;
+ return result[key];
+ }
+ exists = false;
+ return bufferlist();
+ }
+
+ uint64_t get_size() {
+ map<string,uint64_t> extras;
+ uint64_t s = db->get_estimated_size(extras);
+ for (map<string,uint64_t>::iterator p = extras.begin();
+ p != extras.end(); ++p) {
+ std::cout << p->first << " - " << p->second << std::endl;
+ }
+ std::cout << "total: " << s << std::endl;
+ return s;
+ }
+
+ bool set(const string &prefix, const string &key, bufferlist &val) {
+ assert(!prefix.empty());
+ assert(!key.empty());
+ assert(val.length() > 0);
+
+ KeyValueDB::Transaction tx = db->get_transaction();
+ tx->set(prefix, key, val);
+ int ret = db->submit_transaction_sync(tx);
+
+ return (ret == 0);
+ }
+
+ bool rm(const string& prefix, const string& key) {
+ assert(!prefix.empty());
+ assert(!key.empty());
+
+ KeyValueDB::Transaction tx = db->get_transaction();
+ tx->rmkey(prefix, key);
+ int ret = db->submit_transaction_sync(tx);
+
+ return (ret == 0);
+ }
+
+ bool rm_prefix(const string& prefix) {
+ assert(!prefix.empty());
+
+ KeyValueDB::Transaction tx = db->get_transaction();
+ tx->rmkeys_by_prefix(prefix);
+ int ret = db->submit_transaction_sync(tx);
+
+ return (ret == 0);
+ }
+
+ int copy_store_to(string type, const string &other_path,
+ const int num_keys_per_tx) {
+
+ if (num_keys_per_tx <= 0) {
+ std::cerr << "must specify a number of keys/tx > 0" << std::endl;
+ return -EINVAL;
+ }
+
+ // open or create a leveldb store at @p other_path
+ KeyValueDB *other = KeyValueDB::create(g_ceph_context, type, other_path);
+ int err = other->create_and_open(std::cerr);
+ if (err < 0)
+ return err;
+
+ KeyValueDB::WholeSpaceIterator it = db->get_iterator();
+ it->seek_to_first();
+ uint64_t total_keys = 0;
+ uint64_t total_size = 0;
+ uint64_t total_txs = 0;
+
+ utime_t started_at = ceph_clock_now();
+
+ do {
+ int num_keys = 0;
+
+ KeyValueDB::Transaction tx = other->get_transaction();
+
+
+ while (it->valid() && num_keys < num_keys_per_tx) {
+ pair<string,string> k = it->raw_key();
+ bufferlist v = it->value();
+ tx->set(k.first, k.second, v);
+
+ num_keys ++;
+ total_size += v.length();
+
+ it->next();
+ }
+
+ total_txs ++;
+ total_keys += num_keys;
+
+ if (num_keys > 0)
+ other->submit_transaction_sync(tx);
+
+ utime_t cur_duration = ceph_clock_now() - started_at;
+ std::cout << "ts = " << cur_duration << "s, copied " << total_keys
+ << " keys so far (" << stringify(si_t(total_size)) << ")"
+ << std::endl;
+
+ } while (it->valid());
+
+ utime_t time_taken = ceph_clock_now() - started_at;
+
+ std::cout << "summary:" << std::endl;
+ std::cout << " copied " << total_keys << " keys" << std::endl;
+ std::cout << " used " << total_txs << " transactions" << std::endl;
+ std::cout << " total size " << stringify(si_t(total_size)) << std::endl;
+ std::cout << " from '" << store_path << "' to '" << other_path << "'"
+ << std::endl;
+ std::cout << " duration " << time_taken << " seconds" << std::endl;
+
+ return 0;
+ }
+
+ void compact() {
+ db->compact();
+ }
+ void compact_prefix(string prefix) {
+ db->compact_prefix(prefix);
+ }
+ void compact_range(string prefix, string start, string end) {
+ db->compact_range(prefix, start, end);
+ }
+};
+
+void usage(const char *pname)
+{
+ std::cerr << "Usage: " << pname << " <leveldb|rocksdb|bluestore-kv> <store path> command [args...]\n"
+ << "\n"
+ << "Commands:\n"
+ << " list [prefix]\n"
+ << " list-crc [prefix]\n"
+ << " exists <prefix> [key]\n"
+ << " get <prefix> <key> [out <file>]\n"
+ << " crc <prefix> <key>\n"
+ << " get-size [<prefix> <key>]\n"
+ << " set <prefix> <key> [ver <N>|in <file>]\n"
+ << " rm <prefix> <key>\n"
+ << " rm-prefix <prefix>\n"
+ << " store-copy <path> [num-keys-per-tx]\n"
+ << " store-crc <path>\n"
+ << " compact\n"
+ << " compact-prefix <prefix>\n"
+ << " compact-range <prefix> <start> <end>\n"
+ << std::endl;
+}
+
+int main(int argc, const char *argv[])
+{
+ vector<const char*> args;
+ argv_to_vec(argc, argv, args);
+ env_to_vec(args);
+
+ auto cct = global_init(
+ NULL, args,
+ CEPH_ENTITY_TYPE_CLIENT, CODE_ENVIRONMENT_UTILITY, 0);
+ common_init_finish(g_ceph_context);
+
+
+ if (args.size() < 3) {
+ usage(argv[0]);
+ return 1;
+ }
+
+ string type(args[0]);
+ string path(args[1]);
+ string cmd(args[2]);
+
+ StoreTool st(type, path);
+
+ if (cmd == "list" || cmd == "list-crc") {
+ string prefix;
+ if (argc > 4)
+ prefix = url_unescape(argv[4]);
+
+ bool do_crc = (cmd == "list-crc");
+
+ st.list(prefix, do_crc);
+
+ } else if (cmd == "exists") {
+ string key;
+ if (argc < 5) {
+ usage(argv[0]);
+ return 1;
+ }
+ string prefix(url_unescape(argv[4]));
+ if (argc > 5)
+ key = url_unescape(argv[5]);
+
+ bool ret = st.exists(prefix, key);
+ std::cout << "(" << url_escape(prefix) << ", " << url_escape(key) << ") "
+ << (ret ? "exists" : "does not exist")
+ << std::endl;
+ return (ret ? 0 : 1);
+
+ } else if (cmd == "get") {
+ if (argc < 6) {
+ usage(argv[0]);
+ return 1;
+ }
+ string prefix(url_unescape(argv[4]));
+ string key(url_unescape(argv[5]));
+
+ bool exists = false;
+ bufferlist bl = st.get(prefix, key, exists);
+ std::cout << "(" << url_escape(prefix) << ", " << url_escape(key) << ")";
+ if (!exists) {
+ std::cout << " does not exist" << std::endl;
+ return 1;
+ }
+ std::cout << std::endl;
+
+ if (argc >= 7) {
+ string subcmd(argv[6]);
+ if (subcmd != "out") {
+ std::cerr << "unrecognized subcmd '" << subcmd << "'"
+ << std::endl;
+ return 1;
+ }
+ if (argc < 8) {
+ std::cerr << "output path not specified" << std::endl;
+ return 1;
+ }
+ string out(argv[7]);
+
+ if (out.empty()) {
+ std::cerr << "unspecified out file" << std::endl;
+ return 1;
+ }
+
+ int err = bl.write_file(argv[7], 0644);
+ if (err < 0) {
+ std::cerr << "error writing value to '" << out << "': "
+ << cpp_strerror(err) << std::endl;
+ return 1;
+ }
+ } else {
+ ostringstream os;
+ bl.hexdump(os);
+ std::cout << os.str() << std::endl;
+ }
+
+ } else if (cmd == "crc") {
+ if (argc < 6) {
+ usage(argv[0]);
+ return 1;
+ }
+ string prefix(url_unescape(argv[4]));
+ string key(url_unescape(argv[5]));
+
+ bool exists = false;
+ bufferlist bl = st.get(prefix, key, exists);
+ std::cout << "(" << url_escape(prefix) << ", " << url_escape(key) << ") ";
+ if (!exists) {
+ std::cout << " does not exist" << std::endl;
+ return 1;
+ }
+ std::cout << " crc " << bl.crc32c(0) << std::endl;
+
+ } else if (cmd == "get-size") {
+ std::cout << "estimated store size: " << st.get_size() << std::endl;
+
+ if (argc < 5)
+ return 0;
+
+ if (argc < 6) {
+ usage(argv[0]);
+ return 1;
+ }
+ string prefix(url_unescape(argv[4]));
+ string key(url_unescape(argv[5]));
+
+ bool exists = false;
+ bufferlist bl = st.get(prefix, key, exists);
+ if (!exists) {
+ std::cerr << "(" << url_escape(prefix) << "," << url_escape(key)
+ << ") does not exist" << std::endl;
+ return 1;
+ }
+ std::cout << "(" << url_escape(prefix) << "," << url_escape(key)
+ << ") size " << si_t(bl.length()) << std::endl;
+
+ } else if (cmd == "set") {
+ if (argc < 8) {
+ usage(argv[0]);
+ return 1;
+ }
+ string prefix(url_unescape(argv[4]));
+ string key(url_unescape(argv[5]));
+ string subcmd(argv[6]);
+
+ bufferlist val;
+ string errstr;
+ if (subcmd == "ver") {
+ version_t v = (version_t) strict_strtoll(argv[7], 10, &errstr);
+ if (!errstr.empty()) {
+ std::cerr << "error reading version: " << errstr << std::endl;
+ return 1;
+ }
+ ::encode(v, val);
+ } else if (subcmd == "in") {
+ int ret = val.read_file(argv[7], &errstr);
+ if (ret < 0 || !errstr.empty()) {
+ std::cerr << "error reading file: " << errstr << std::endl;
+ return 1;
+ }
+ } else {
+ std::cerr << "unrecognized subcommand '" << subcmd << "'" << std::endl;
+ usage(argv[0]);
+ return 1;
+ }
+
+ bool ret = st.set(prefix, key, val);
+ if (!ret) {
+ std::cerr << "error setting ("
+ << url_escape(prefix) << "," << url_escape(key) << ")" << std::endl;
+ return 1;
+ }
+ } else if (cmd == "rm") {
+ if (argc < 6) {
+ usage(argv[0]);
+ return 1;
+ }
+ string prefix(url_unescape(argv[4]));
+ string key(url_unescape(argv[5]));
+
+ bool ret = st.rm(prefix, key);
+ if (!ret) {
+ std::cerr << "error removing ("
+ << url_escape(prefix) << "," << url_escape(key) << ")"
+ << std::endl;
+ return 1;
+ }
+ } else if (cmd == "rm-prefix") {
+ if (argc < 5) {
+ usage(argv[0]);
+ return 1;
+ }
+ string prefix(url_unescape(argv[4]));
+
+ bool ret = st.rm_prefix(prefix);
+ if (!ret) {
+ std::cerr << "error removing prefix ("
+ << url_escape(prefix) << ")"
+ << std::endl;
+ return 1;
+ }
+ } else if (cmd == "store-copy") {
+ int num_keys_per_tx = 128; // magic number that just feels right.
+ if (argc < 5) {
+ usage(argv[0]);
+ return 1;
+ } else if (argc > 5) {
+ string err;
+ num_keys_per_tx = strict_strtol(argv[5], 10, &err);
+ if (!err.empty()) {
+ std::cerr << "invalid num_keys_per_tx: " << err << std::endl;
+ return 1;
+ }
+ }
+
+ int ret = st.copy_store_to(argv[1], argv[4], num_keys_per_tx);
+ if (ret < 0) {
+ std::cerr << "error copying store to path '" << argv[4]
+ << "': " << cpp_strerror(ret) << std::endl;
+ return 1;
+ }
+
+ } else if (cmd == "store-crc") {
+ uint32_t crc = st.traverse(string(), true, NULL);
+ std::cout << "store at '" << path << "' crc " << crc << std::endl;
+
+ } else if (cmd == "compact") {
+ st.compact();
+ } else if (cmd == "compact-prefix") {
+ if (argc < 5) {
+ usage(argv[0]);
+ return 1;
+ }
+ string prefix(url_unescape(argv[4]));
+ st.compact_prefix(prefix);
+ } else if (cmd == "compact-range") {
+ if (argc < 7) {
+ usage(argv[0]);
+ return 1;
+ }
+ string prefix(url_unescape(argv[4]));
+ string start(url_unescape(argv[5]));
+ string end(url_unescape(argv[6]));
+ st.compact_range(prefix, start, end);
+ } else {
+ std::cerr << "Unrecognized command: " << cmd << std::endl;
+ return 1;
+ }
+
+ return 0;
+}
Code Review / stor4nfv.git / blobdiff