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// -*- 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) 2004-2006 Sage Weil <sage@newdream.net>
*
* 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 "MDSMap.h"
#include <sstream>
using std::stringstream;
// features
CompatSet get_mdsmap_compat_set() {
CompatSet::FeatureSet feature_compat;
CompatSet::FeatureSet feature_ro_compat;
CompatSet::FeatureSet feature_incompat;
feature_incompat.insert(MDS_FEATURE_INCOMPAT_BASE);
feature_incompat.insert(MDS_FEATURE_INCOMPAT_CLIENTRANGES);
feature_incompat.insert(MDS_FEATURE_INCOMPAT_FILELAYOUT);
feature_incompat.insert(MDS_FEATURE_INCOMPAT_DIRINODE);
return CompatSet(feature_compat, feature_ro_compat, feature_incompat);
}
// base (pre v0.20)
CompatSet get_mdsmap_compat_set_base() {
CompatSet::FeatureSet feature_compat_base;
CompatSet::FeatureSet feature_incompat_base;
feature_incompat_base.insert(MDS_FEATURE_INCOMPAT_BASE);
CompatSet::FeatureSet feature_ro_compat_base;
return CompatSet(feature_compat_base, feature_incompat_base, feature_ro_compat_base);
}
void MDSMap::mds_info_t::dump(Formatter *f) const
{
f->dump_unsigned("gid", global_id);
f->dump_string("name", name);
f->dump_int("rank", rank);
f->dump_int("incarnation", inc);
f->dump_stream("state") << ceph_mds_state_name(state);
f->dump_int("state_seq", state_seq);
f->dump_stream("addr") << addr;
if (laggy_since != utime_t())
f->dump_stream("laggy_since") << laggy_since;
f->dump_int("standby_for_rank", standby_for_rank);
f->dump_string("standby_for_name", standby_for_name);
f->open_array_section("export_targets");
for (set<int32_t>::iterator p = export_targets.begin();
p != export_targets.end(); ++p) {
f->dump_int("mds", *p);
}
f->close_section();
}
void MDSMap::dump(Formatter *f) const
{
f->dump_int("epoch", epoch);
f->dump_unsigned("flags", flags);
f->dump_stream("created") << created;
f->dump_stream("modified") << modified;
f->dump_int("tableserver", tableserver);
f->dump_int("root", root);
f->dump_int("session_timeout", session_timeout);
f->dump_int("session_autoclose", session_autoclose);
f->dump_int("max_file_size", max_file_size);
f->dump_int("last_failure", last_failure);
f->dump_int("last_failure_osd_epoch", last_failure_osd_epoch);
f->open_object_section("compat");
compat.dump(f);
f->close_section();
f->dump_int("max_mds", max_mds);
f->open_array_section("in");
for (set<int32_t>::const_iterator p = in.begin(); p != in.end(); ++p)
f->dump_int("mds", *p);
f->close_section();
f->open_object_section("up");
for (map<int32_t,uint64_t>::const_iterator p = up.begin(); p != up.end(); ++p) {
char s[10];
sprintf(s, "%d", p->first);
f->dump_int(s, p->second);
}
f->close_section();
f->open_array_section("failed");
for (set<int32_t>::const_iterator p = failed.begin(); p != failed.end(); ++p)
f->dump_int("mds", *p);
f->close_section();
f->open_array_section("stopped");
for (set<int32_t>::const_iterator p = stopped.begin(); p != stopped.end(); ++p)
f->dump_int("mds", *p);
f->close_section();
f->open_object_section("info");
for (map<uint64_t,mds_info_t>::const_iterator p = mds_info.begin(); p != mds_info.end(); ++p) {
char s[10];
sprintf(s, "%llu", (long long unsigned)p->first);
f->open_object_section(s);
p->second.dump(f);
f->close_section();
}
f->close_section();
f->open_array_section("data_pools");
for (vector<int64_t>::const_iterator p = data_pg_pools.begin(); p != data_pg_pools.end(); ++p)
f->dump_int("pool", *p);
f->close_section();
f->dump_int("metadata_pool", metadata_pg_pool);
}
void MDSMap::print(ostream& out)
{
out << "epoch\t" << epoch << "\n";
out << "flags\t" << hex << flags << dec << "\n";
out << "created\t" << created << "\n";
out << "modified\t" << modified << "\n";
out << "tableserver\t" << tableserver << "\n";
out << "root\t" << root << "\n";
out << "session_timeout\t" << session_timeout << "\n"
<< "session_autoclose\t" << session_autoclose << "\n";
out << "last_failure\t" << last_failure << "\n"
<< "last_failure_osd_epoch\t" << last_failure_osd_epoch << "\n";
out << "compat\t" << compat << "\n";
out << "max_mds\t" << max_mds << "\n";
out << "in\t" << in << "\n"
<< "up\t" << up << "\n"
<< "failed\t" << failed << "\n"
<< "stopped\t" << stopped << "\n";
out << "data_pools\t" << data_pg_pools << "\n";
out << "metadata_pool\t" << metadata_pg_pool << "\n";
multimap< pair<unsigned,unsigned>, uint64_t > foo;
for (map<uint64_t,mds_info_t>::iterator p = mds_info.begin();
p != mds_info.end();
p++)
foo.insert(pair<pair<unsigned,unsigned>,uint64_t>(pair<unsigned,unsigned>(p->second.rank, p->second.inc-1), p->first));
for (multimap< pair<unsigned,unsigned>, uint64_t >::iterator p = foo.begin();
p != foo.end();
p++) {
mds_info_t& info = mds_info[p->second];
out << p->second << ":\t"
<< info.addr
<< " '" << info.name << "'"
<< " mds." << info.rank
<< "." << info.inc
<< " " << ceph_mds_state_name(info.state)
<< " seq " << info.state_seq;
if (info.laggy())
out << " laggy since " << info.laggy_since;
if (info.standby_for_rank != -1 ||
!info.standby_for_name.empty()) {
out << " (standby for";
//if (info.standby_for_rank >= 0)
out << " rank " << info.standby_for_rank;
if (!info.standby_for_name.empty())
out << " '" << info.standby_for_name << "'";
out << ")";
}
if (info.export_targets.size())
out << " export_targets=" << info.export_targets;
out << "\n";
}
}
void MDSMap::print_summary(ostream& out)
{
map<int,string> by_rank;
map<string,int> by_state;
for (map<uint64_t,mds_info_t>::iterator p = mds_info.begin();
p != mds_info.end();
p++) {
string s = ceph_mds_state_name(p->second.state);
if (p->second.laggy())
s += "(laggy or crashed)";
if (p->second.rank >= 0)
by_rank[p->second.rank] = p->second.name + "=" + s;
else
by_state[s]++;
}
out << "e" << get_epoch() << ": " << up.size() << "/" << in.size() << "/" << max_mds << " up";
if (by_rank.size())
out << " " << by_rank;
for (map<string,int>::reverse_iterator p = by_state.rbegin(); p != by_state.rend(); p++)
out << ", " << p->second << " " << p->first;
if (failed.size())
out << ", " << failed.size() << " failed";
//if (stopped.size())
//out << ", " << stopped.size() << " stopped";
}
void MDSMap::get_health(list<pair<health_status_t,string> >& summary,
list<pair<health_status_t,string> > *detail) const
{
if (!failed.empty()) {
std::ostringstream oss;
oss << "mds rank"
<< ((failed.size() > 1) ? "s ":" ")
<< failed
<< ((failed.size() > 1) ? " have":" has")
<< " failed";
summary.push_back(make_pair(HEALTH_ERR, oss.str()));
if (detail) {
for (set<int>::iterator p = failed.begin(); p != failed.end(); ++p) {
std::ostringstream oss;
oss << "mds." << *p << " has failed";
detail->push_back(make_pair(HEALTH_ERR, oss.str()));
}
}
}
map<int32_t,uint64_t>::const_iterator u = up.begin();
map<int32_t,uint64_t>::const_iterator u_end = up.end();
map<uint64_t,mds_info_t>::const_iterator m_end = mds_info.end();
set<string> laggy;
for (; u != u_end; ++u) {
map<uint64_t,mds_info_t>::const_iterator m = mds_info.find(u->second);
assert(m != m_end);
const mds_info_t &mds_info(m->second);
if (mds_info.laggy()) {
laggy.insert(mds_info.name);
if (detail) {
std::ostringstream oss;
oss << "mds." << mds_info.name << " at " << mds_info.addr << " is laggy/unresponsive";
detail->push_back(make_pair(HEALTH_WARN, oss.str()));
}
}
}
if (laggy.size()) {
std::ostringstream oss;
oss << "mds " << laggy
<< ((laggy.size() > 1) ? " are":" is")
<< " laggy";
summary.push_back(make_pair(HEALTH_WARN, oss.str()));
}
}
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