mirror of
https://github.com/ceph/ceph
synced 2025-01-07 19:51:19 +00:00
3204f45d4b
This gets it out of the header, and also makes the previous "my_features & their_features" logic explicit in the Policy definitions. Signed-off-by: Sage Weil <sage@newdream.net>
127 lines
3.2 KiB
C++
127 lines
3.2 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 <sys/stat.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 "config.h"
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#include "mon/MonMap.h"
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#include "mds/MDS.h"
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#include "msg/SimpleMessenger.h"
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#include "common/Timer.h"
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#include "common/common_init.h"
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#include "mon/MonClient.h"
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#include "auth/KeyRing.h"
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void usage()
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{
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cerr << "usage: cmds -i name [flags] [--mds rank] [--shadow rank]\n";
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cerr << " -m monitorip:port\n";
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cerr << " connect to monitor at given address\n";
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cerr << " --debug_mds n\n";
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cerr << " debug MDS level (e.g. 10)\n";
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generic_server_usage();
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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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common_set_defaults(true);
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common_init(args, "mds", true);
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// mds specific args
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for (unsigned i=0; i<args.size(); i++) {
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cerr << "unrecognized arg " << args[i] << std::endl;
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usage();
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}
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if (!g_conf.id) {
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cerr << "must specify '-i name' with the cmds instance name" << std::endl;
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usage();
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}
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if (g_conf.clock_tare) g_clock.tare();
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// get monmap
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RotatingKeyRing rkeys(CEPH_ENTITY_TYPE_MDS, &g_keyring);
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MonClient mc(&rkeys);
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if (mc.build_initial_monmap() < 0)
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return -1;
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SimpleMessenger *messenger = new SimpleMessenger();
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messenger->bind();
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cout << "starting mds." << g_conf.id
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<< " at " << messenger->get_ms_addr()
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<< std::endl;
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messenger->register_entity(entity_name_t::MDS(-1));
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assert_warn(messenger);
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if (!messenger)
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return 1;
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uint64_t supported =
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CEPH_FEATURE_UID |
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CEPH_FEATURE_NOSRCADDR;
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messenger->set_default_policy(SimpleMessenger::Policy::client(supported, 0));
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messenger->set_policy(entity_name_t::TYPE_MON,
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SimpleMessenger::Policy::client(supported,
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CEPH_FEATURE_UID));
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messenger->set_policy(entity_name_t::TYPE_MDS,
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SimpleMessenger::Policy::lossless_peer(supported,
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CEPH_FEATURE_UID));
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messenger->set_policy(entity_name_t::TYPE_CLIENT,
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SimpleMessenger::Policy::stateful_server(supported, 0));
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messenger->start();
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// start mds
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MDS *mds = new MDS(g_conf.id, messenger, &mc);
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mds->init();
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messenger->wait();
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// yuck: grab the mds lock, so we can be sure that whoever in *mds
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// called shutdown finishes what they were doing.
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mds->mds_lock.Lock();
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mds->mds_lock.Unlock();
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// only delete if it was a clean shutdown (to aid memory leak
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// detection, etc.). don't bother if it was a suicide.
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if (mds->is_stopped())
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delete mds;
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// cd on exit, so that gmon.out (if any) goes into a separate directory for each node.
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char s[20];
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snprintf(s, sizeof(s), "gmon/%d", getpid());
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if (mkdir(s, 0755) == 0)
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chdir(s);
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generic_dout(0) << "stopped." << dendl;
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return 0;
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}
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