Adding upstream version 18.2.2.upstream/18.2.2

Signed-off-by: Daniel Baumann <daniel.baumann@progress-linux.org>

1 files changed, 363 insertions, 0 deletions

diff --git a/src/tools/ceph_kvstore_tool.cc b/src/tools/ceph_kvstore_tool.cc
new file mode 100644
index 000000000..61fe00cc9
--- /dev/null
+++ b/src/tools/ceph_kvstore_tool.cc
@@ -0,0 +1,363 @@
+// -*- 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 <fstream>
+
+#include "common/ceph_argparse.h"
+#include "common/config.h"
+#include "common/errno.h"
+#include "common/strtol.h"
+#include "common/url_escape.h"
+
+#include "global/global_context.h"
+#include "global/global_init.h"
+
+#include "kvstore_tool.h"
+
+using namespace std;
+
+void usage(const char *pname)
+{
+  std::cout << "Usage: " << pname << " <leveldb|rocksdb|bluestore-kv> <store path> command [args...]\n"
+    << "\n"
+    << "Commands:\n"
+    << "  list [prefix]\n"
+    << "  list-crc [prefix]\n"
+    << "  dump [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] [leveldb|rocksdb|...] \n"
+    << "  store-crc <path>\n"
+    << "  compact\n"
+    << "  compact-prefix <prefix>\n"
+    << "  compact-range <prefix> <start> <end>\n"
+    << "  destructive-repair  (use only as last resort! may corrupt healthy data)\n"
+    << "  stats\n"
+    << "  histogram [prefix]\n"
+    << std::endl;
+}
+
+int main(int argc, const char *argv[])
+{
+  auto args = argv_to_vec(argc, argv);
+  if (args.empty()) {
+    cerr << argv[0] << ": -h or --help for usage" << std::endl;
+    exit(1);
+  }
+  if (ceph_argparse_need_usage(args)) {
+    usage(argv[0]);
+    exit(0);
+  }
+
+  map<string,string> defaults = {
+    { "debug_rocksdb", "2" }
+  };
+
+  auto cct = global_init(
+    &defaults, args,
+    CEPH_ENTITY_TYPE_CLIENT, CODE_ENVIRONMENT_UTILITY,
+    CINIT_FLAG_NO_DEFAULT_CONFIG_FILE);
+  common_init_finish(g_ceph_context);
+
+  ceph_assert((int)args.size() < argc);
+  for(size_t i=0; i<args.size(); i++)
+    argv[i+1] = args[i];
+  argc = args.size() + 1;
+
+  if (args.size() < 3) {
+    usage(argv[0]);
+    return 1;
+  }
+
+  string type(args[0]);
+  string path(args[1]);
+  string cmd(args[2]);
+
+  if (type != "leveldb" &&
+      type != "rocksdb" &&
+      type != "bluestore-kv")  {
+
+    std::cerr << "Unrecognized type: " << args[0] << std::endl;
+    usage(argv[0]);
+    return 1;
+  }
+
+  bool to_repair = (cmd == "destructive-repair");
+  bool need_stats = (cmd == "stats");
+  StoreTool st(type, path, to_repair, need_stats);
+
+  if (cmd == "destructive-repair") {
+    int ret = st.destructive_repair();
+    if (!ret) {
+      std::cout << "destructive-repair completed without reporting an error"
+		<< std::endl;
+    } else {
+      std::cout << "destructive-repair failed with " << cpp_strerror(ret)
+		<< std::endl;
+    }
+    return ret;
+  } else 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, false);
+
+  } else if (cmd == "dump") {
+    string prefix;
+    if (argc > 4)
+      prefix = url_unescape(argv[4]);
+    st.list(prefix, false, true);
+
+  } 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 " << byte_u_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;
+      }
+    }
+    string other_store_type = argv[1];
+    if (argc > 6) {
+      other_store_type = argv[6];
+    }
+
+    int ret = st.copy_store_to(argv[1], argv[4], num_keys_per_tx, other_store_type);
+    if (ret < 0) {
+      std::cerr << "error copying store to path '" << argv[4]
+                << "': " << cpp_strerror(ret) << std::endl;
+      return 1;
+    }
+
+  } else if (cmd == "store-crc") {
+    if (argc < 4) {
+      usage(argv[0]);
+      return 1;
+    }
+    std::ofstream fs(argv[4]);
+    uint32_t crc = st.traverse(string(), true, false, &fs);
+    std::cout << "store at '" << argv[4] << "' 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 if (cmd == "stats") {
+    st.print_stats();
+  } else if (cmd == "histogram") {
+    string prefix;
+    if (argc > 4)
+      prefix = url_unescape(argv[4]);
+    st.build_size_histogram(prefix);
+  } else {
+    std::cerr << "Unrecognized command: " << cmd << std::endl;
+    return 1;
+  }
+
+  return 0;
+}