--- /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) 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 <boost/algorithm/string/predicate.hpp>
+
+#include <sstream>
+#include <syslog.h>
+
+#include "LogMonitor.h"
+#include "Monitor.h"
+#include "MonitorDBStore.h"
+
+#include "messages/MMonCommand.h"
+#include "messages/MLog.h"
+#include "messages/MLogAck.h"
+#include "common/Graylog.h"
+#include "common/errno.h"
+#include "common/strtol.h"
+#include "include/assert.h"
+#include "include/str_list.h"
+#include "include/str_map.h"
+#include "include/compat.h"
+
+#define dout_subsys ceph_subsys_mon
+#undef dout_prefix
+#define dout_prefix _prefix(_dout, mon, get_last_committed())
+static ostream& _prefix(std::ostream *_dout, Monitor *mon, version_t v) {
+ return *_dout << "mon." << mon->name << "@" << mon->rank
+ << "(" << mon->get_state_name()
+ << ").log v" << v << " ";
+}
+
+ostream& operator<<(ostream &out, const LogMonitor &pm)
+{
+ return out << "log";
+}
+
+/*
+ Tick function to update the map based on performance every N seconds
+*/
+
+void LogMonitor::tick()
+{
+ if (!is_active()) return;
+
+ dout(10) << *this << dendl;
+
+}
+
+void LogMonitor::create_initial()
+{
+ dout(10) << "create_initial -- creating initial map" << dendl;
+ LogEntry e;
+ memset(&e.who, 0, sizeof(e.who));
+ e.name = g_conf->name;
+ e.stamp = ceph_clock_now();
+ e.prio = CLOG_INFO;
+ std::stringstream ss;
+ ss << "mkfs " << mon->monmap->get_fsid();
+ e.msg = ss.str();
+ e.seq = 0;
+ pending_log.insert(pair<utime_t,LogEntry>(e.stamp, e));
+}
+
+void LogMonitor::update_from_paxos(bool *need_bootstrap)
+{
+ dout(10) << __func__ << dendl;
+ version_t version = get_last_committed();
+ dout(10) << __func__ << " version " << version
+ << " summary v " << summary.version << dendl;
+ if (version == summary.version)
+ return;
+ assert(version >= summary.version);
+
+ map<string,bufferlist> channel_blog;
+
+ version_t latest_full = get_version_latest_full();
+ dout(10) << __func__ << " latest full " << latest_full << dendl;
+ if ((latest_full > 0) && (latest_full > summary.version)) {
+ bufferlist latest_bl;
+ get_version_full(latest_full, latest_bl);
+ assert(latest_bl.length() != 0);
+ dout(7) << __func__ << " loading summary e" << latest_full << dendl;
+ bufferlist::iterator p = latest_bl.begin();
+ ::decode(summary, p);
+ dout(7) << __func__ << " loaded summary e" << summary.version << dendl;
+ }
+
+ // walk through incrementals
+ while (version > summary.version) {
+ bufferlist bl;
+ int err = get_version(summary.version+1, bl);
+ assert(err == 0);
+ assert(bl.length());
+
+ bufferlist::iterator p = bl.begin();
+ __u8 v;
+ ::decode(v, p);
+ while (!p.end()) {
+ LogEntry le;
+ le.decode(p);
+ dout(7) << "update_from_paxos applying incremental log " << summary.version+1 << " " << le << dendl;
+
+ string channel = le.channel;
+ if (channel.empty()) // keep retrocompatibility
+ channel = CLOG_CHANNEL_CLUSTER;
+
+ if (channels.do_log_to_syslog(channel)) {
+ string level = channels.get_level(channel);
+ string facility = channels.get_facility(channel);
+ if (level.empty() || facility.empty()) {
+ derr << __func__ << " unable to log to syslog -- level or facility"
+ << " not defined (level: " << level << ", facility: "
+ << facility << ")" << dendl;
+ continue;
+ }
+ le.log_to_syslog(channels.get_level(channel),
+ channels.get_facility(channel));
+ }
+
+ if (channels.do_log_to_graylog(channel)) {
+ ceph::logging::Graylog::Ref graylog = channels.get_graylog(channel);
+ if (graylog) {
+ graylog->log_log_entry(&le);
+ }
+ dout(7) << "graylog: " << channel << " " << graylog
+ << " host:" << channels.log_to_graylog_host << dendl;
+ }
+
+ string log_file = channels.get_log_file(channel);
+ dout(20) << __func__ << " logging for channel '" << channel
+ << "' to file '" << log_file << "'" << dendl;
+
+ if (!log_file.empty()) {
+ string log_file_level = channels.get_log_file_level(channel);
+ if (log_file_level.empty()) {
+ dout(1) << __func__ << " warning: log file level not defined for"
+ << " channel '" << channel << "' yet a log file is --"
+ << " will assume lowest level possible" << dendl;
+ }
+
+ int min = string_to_syslog_level(log_file_level);
+ int l = clog_type_to_syslog_level(le.prio);
+ if (l <= min) {
+ stringstream ss;
+ ss << le << "\n";
+ // init entry if DNE
+ bufferlist &blog = channel_blog[channel];
+ blog.append(ss.str());
+ }
+ }
+
+ summary.add(le);
+ }
+
+ summary.version++;
+ summary.prune(g_conf->mon_log_max_summary);
+ }
+
+ dout(15) << __func__ << " logging for "
+ << channel_blog.size() << " channels" << dendl;
+ for(map<string,bufferlist>::iterator p = channel_blog.begin();
+ p != channel_blog.end(); ++p) {
+ if (!p->second.length()) {
+ dout(15) << __func__ << " channel '" << p->first
+ << "': nothing to log" << dendl;
+ continue;
+ }
+
+ dout(15) << __func__ << " channel '" << p->first
+ << "' logging " << p->second.length() << " bytes" << dendl;
+ string log_file = channels.get_log_file(p->first);
+
+ int fd = ::open(log_file.c_str(), O_WRONLY|O_APPEND|O_CREAT, 0600);
+ if (fd < 0) {
+ int err = -errno;
+ dout(1) << "unable to write to '" << log_file << "' for channel '"
+ << p->first << "': " << cpp_strerror(err) << dendl;
+ } else {
+ int err = p->second.write_fd(fd);
+ if (err < 0) {
+ dout(1) << "error writing to '" << log_file << "' for channel '"
+ << p->first << ": " << cpp_strerror(err) << dendl;
+ }
+ VOID_TEMP_FAILURE_RETRY(::close(fd));
+ }
+ }
+
+ check_subs();
+}
+
+void LogMonitor::create_pending()
+{
+ pending_log.clear();
+ pending_summary = summary;
+ dout(10) << "create_pending v " << (get_last_committed() + 1) << dendl;
+}
+
+void LogMonitor::encode_pending(MonitorDBStore::TransactionRef t)
+{
+ version_t version = get_last_committed() + 1;
+ bufferlist bl;
+ dout(10) << __func__ << " v" << version << dendl;
+ __u8 v = 1;
+ ::encode(v, bl);
+ multimap<utime_t,LogEntry>::iterator p;
+ for (p = pending_log.begin(); p != pending_log.end(); ++p)
+ p->second.encode(bl, mon->get_quorum_con_features());
+
+ put_version(t, version, bl);
+ put_last_committed(t, version);
+}
+
+void LogMonitor::encode_full(MonitorDBStore::TransactionRef t)
+{
+ dout(10) << __func__ << " log v " << summary.version << dendl;
+ assert(get_last_committed() == summary.version);
+
+ bufferlist summary_bl;
+ ::encode(summary, summary_bl, mon->get_quorum_con_features());
+
+ put_version_full(t, summary.version, summary_bl);
+ put_version_latest_full(t, summary.version);
+}
+
+version_t LogMonitor::get_trim_to()
+{
+ if (!mon->is_leader())
+ return 0;
+
+ unsigned max = g_conf->mon_max_log_epochs;
+ version_t version = get_last_committed();
+ if (version > max)
+ return version - max;
+ return 0;
+}
+
+bool LogMonitor::preprocess_query(MonOpRequestRef op)
+{
+ op->mark_logmon_event("preprocess_query");
+ PaxosServiceMessage *m = static_cast<PaxosServiceMessage*>(op->get_req());
+ dout(10) << "preprocess_query " << *m << " from " << m->get_orig_source_inst() << dendl;
+ switch (m->get_type()) {
+ case MSG_MON_COMMAND:
+ return preprocess_command(op);
+
+ case MSG_LOG:
+ return preprocess_log(op);
+
+ default:
+ ceph_abort();
+ return true;
+ }
+}
+
+bool LogMonitor::prepare_update(MonOpRequestRef op)
+{
+ op->mark_logmon_event("prepare_update");
+ PaxosServiceMessage *m = static_cast<PaxosServiceMessage*>(op->get_req());
+ dout(10) << "prepare_update " << *m << " from " << m->get_orig_source_inst() << dendl;
+ switch (m->get_type()) {
+ case MSG_MON_COMMAND:
+ return prepare_command(op);
+ case MSG_LOG:
+ return prepare_log(op);
+ default:
+ ceph_abort();
+ return false;
+ }
+}
+
+bool LogMonitor::preprocess_log(MonOpRequestRef op)
+{
+ op->mark_logmon_event("preprocess_log");
+ MLog *m = static_cast<MLog*>(op->get_req());
+ dout(10) << "preprocess_log " << *m << " from " << m->get_orig_source() << dendl;
+ int num_new = 0;
+
+ MonSession *session = m->get_session();
+ if (!session)
+ goto done;
+ if (!session->is_capable("log", MON_CAP_W)) {
+ dout(0) << "preprocess_log got MLog from entity with insufficient privileges "
+ << session->caps << dendl;
+ goto done;
+ }
+
+ for (deque<LogEntry>::iterator p = m->entries.begin();
+ p != m->entries.end();
+ ++p) {
+ if (!pending_summary.contains(p->key()))
+ num_new++;
+ }
+ if (!num_new) {
+ dout(10) << " nothing new" << dendl;
+ goto done;
+ }
+
+ return false;
+
+ done:
+ return true;
+}
+
+struct LogMonitor::C_Log : public C_MonOp {
+ LogMonitor *logmon;
+ C_Log(LogMonitor *p, MonOpRequestRef o) :
+ C_MonOp(o), logmon(p) {}
+ void _finish(int r) override {
+ if (r == -ECANCELED) {
+ return;
+ }
+ logmon->_updated_log(op);
+ }
+};
+
+bool LogMonitor::prepare_log(MonOpRequestRef op)
+{
+ op->mark_logmon_event("prepare_log");
+ MLog *m = static_cast<MLog*>(op->get_req());
+ dout(10) << "prepare_log " << *m << " from " << m->get_orig_source() << dendl;
+
+ if (m->fsid != mon->monmap->fsid) {
+ dout(0) << "handle_log on fsid " << m->fsid << " != " << mon->monmap->fsid
+ << dendl;
+ return false;
+ }
+
+ for (deque<LogEntry>::iterator p = m->entries.begin();
+ p != m->entries.end();
+ ++p) {
+ dout(10) << " logging " << *p << dendl;
+ if (!pending_summary.contains(p->key())) {
+ pending_summary.add(*p);
+ pending_log.insert(pair<utime_t,LogEntry>(p->stamp, *p));
+ }
+ }
+ pending_summary.prune(g_conf->mon_log_max_summary);
+ wait_for_finished_proposal(op, new C_Log(this, op));
+ return true;
+}
+
+void LogMonitor::_updated_log(MonOpRequestRef op)
+{
+ MLog *m = static_cast<MLog*>(op->get_req());
+ dout(7) << "_updated_log for " << m->get_orig_source_inst() << dendl;
+ mon->send_reply(op, new MLogAck(m->fsid, m->entries.rbegin()->seq));
+}
+
+bool LogMonitor::should_propose(double& delay)
+{
+ // commit now if we have a lot of pending events
+ if (g_conf->mon_max_log_entries_per_event > 0 &&
+ pending_log.size() >= (unsigned)g_conf->mon_max_log_entries_per_event)
+ return true;
+
+ // otherwise fall back to generic policy
+ return PaxosService::should_propose(delay);
+}
+
+
+bool LogMonitor::preprocess_command(MonOpRequestRef op)
+{
+ op->mark_logmon_event("preprocess_command");
+ MMonCommand *m = static_cast<MMonCommand*>(op->get_req());
+ int r = -EINVAL;
+ bufferlist rdata;
+ stringstream ss;
+
+ map<string, cmd_vartype> cmdmap;
+ if (!cmdmap_from_json(m->cmd, &cmdmap, ss)) {
+ string rs = ss.str();
+ mon->reply_command(op, -EINVAL, rs, get_last_committed());
+ return true;
+ }
+ MonSession *session = m->get_session();
+ if (!session) {
+ mon->reply_command(op, -EACCES, "access denied", get_last_committed());
+ return true;
+ }
+
+ string prefix;
+ cmd_getval(g_ceph_context, cmdmap, "prefix", prefix);
+
+ string format;
+ cmd_getval(g_ceph_context, cmdmap, "format", format, string("plain"));
+ boost::scoped_ptr<Formatter> f(Formatter::create(format));
+
+ if (prefix == "log last") {
+ int64_t num = 20;
+ cmd_getval(g_ceph_context, cmdmap, "num", num);
+ if (f) {
+ f->open_array_section("tail");
+ }
+
+ std::string level_str;
+ clog_type level;
+ if (cmd_getval(g_ceph_context, cmdmap, "level", level_str)) {
+ level = LogEntry::str_to_level(level_str);
+ if (level == CLOG_UNKNOWN) {
+ ss << "Invalid severity '" << level_str << "'";
+ mon->reply_command(op, -EINVAL, ss.str(), get_last_committed());
+ return true;
+ }
+ } else {
+ level = CLOG_INFO;
+ }
+
+ std::string channel;
+ if (!cmd_getval(g_ceph_context, cmdmap, "channel", channel)) {
+ channel = CLOG_CHANNEL_DEFAULT;
+ }
+
+ // We'll apply this twice, once while counting out lines
+ // and once while outputting them.
+ auto match = [level, channel](const LogEntry &entry) {
+ return entry.prio >= level && (entry.channel == channel || channel == "*");
+ };
+
+ auto rp = summary.tail.rbegin();
+ for (; num > 0 && rp != summary.tail.rend(); ++rp) {
+ if (match(*rp)) {
+ num--;
+ }
+ }
+ if (rp == summary.tail.rend()) {
+ --rp;
+ }
+ ostringstream ss;
+ for (; rp != summary.tail.rbegin(); --rp) {
+ if (!match(*rp)) {
+ continue;
+ }
+
+ if (f) {
+ f->dump_object("entry", *rp);
+ } else {
+ ss << *rp << "\n";
+ }
+ }
+ if (f) {
+ f->close_section();
+ f->flush(rdata);
+ } else {
+ rdata.append(ss.str());
+ }
+ r = 0;
+ } else {
+ return false;
+ }
+
+ string rs;
+ getline(ss, rs);
+ mon->reply_command(op, r, rs, rdata, get_last_committed());
+ return true;
+}
+
+
+bool LogMonitor::prepare_command(MonOpRequestRef op)
+{
+ op->mark_logmon_event("prepare_command");
+ MMonCommand *m = static_cast<MMonCommand*>(op->get_req());
+ stringstream ss;
+ string rs;
+ int err = -EINVAL;
+
+ map<string, cmd_vartype> cmdmap;
+ if (!cmdmap_from_json(m->cmd, &cmdmap, ss)) {
+ // ss has reason for failure
+ string rs = ss.str();
+ mon->reply_command(op, -EINVAL, rs, get_last_committed());
+ return true;
+ }
+
+ string prefix;
+ cmd_getval(g_ceph_context, cmdmap, "prefix", prefix);
+
+ MonSession *session = m->get_session();
+ if (!session) {
+ mon->reply_command(op, -EACCES, "access denied", get_last_committed());
+ return true;
+ }
+
+ if (prefix == "log") {
+ vector<string> logtext;
+ cmd_getval(g_ceph_context, cmdmap, "logtext", logtext);
+ LogEntry le;
+ le.who = m->get_orig_source_inst();
+ le.name = session->entity_name;
+ le.stamp = m->get_recv_stamp();
+ le.seq = 0;
+ le.prio = CLOG_INFO;
+ le.channel = CLOG_CHANNEL_DEFAULT;
+ le.msg = str_join(logtext, " ");
+ pending_summary.add(le);
+ pending_summary.prune(g_conf->mon_log_max_summary);
+ pending_log.insert(pair<utime_t,LogEntry>(le.stamp, le));
+ wait_for_finished_proposal(op, new Monitor::C_Command(
+ mon, op, 0, string(), get_last_committed() + 1));
+ return true;
+ }
+
+ getline(ss, rs);
+ mon->reply_command(op, err, rs, get_last_committed());
+ return false;
+}
+
+
+int LogMonitor::sub_name_to_id(const string& n)
+{
+ if (n.substr(0, 4) == "log-" && n.size() > 4) {
+ return LogEntry::str_to_level(n.substr(4));
+ } else {
+ return CLOG_UNKNOWN;
+ }
+}
+
+void LogMonitor::check_subs()
+{
+ dout(10) << __func__ << dendl;
+ for (map<string, xlist<Subscription*>*>::iterator i = mon->session_map.subs.begin();
+ i != mon->session_map.subs.end();
+ ++i) {
+ for (xlist<Subscription*>::iterator j = i->second->begin(); !j.end(); ++j) {
+ if (sub_name_to_id((*j)->type) >= 0)
+ check_sub(*j);
+ }
+ }
+}
+
+void LogMonitor::check_sub(Subscription *s)
+{
+ dout(10) << __func__ << " client wants " << s->type << " ver " << s->next << dendl;
+
+ int sub_level = sub_name_to_id(s->type);
+ assert(sub_level >= 0);
+
+ version_t summary_version = summary.version;
+ if (s->next > summary_version) {
+ dout(10) << __func__ << " client " << s->session->inst
+ << " requested version (" << s->next << ") is greater than ours ("
+ << summary_version << "), which means we already sent him"
+ << " everything we have." << dendl;
+ return;
+ }
+
+ MLog *mlog = new MLog(mon->monmap->fsid);
+
+ if (s->next == 0) {
+ /* First timer, heh? */
+ bool ret = _create_sub_summary(mlog, sub_level);
+ if (!ret) {
+ dout(1) << __func__ << " ret = " << ret << dendl;
+ mlog->put();
+ return;
+ }
+ } else {
+ /* let us send you an incremental log... */
+ _create_sub_incremental(mlog, sub_level, s->next);
+ }
+
+ dout(1) << __func__ << " sending message to " << s->session->inst
+ << " with " << mlog->entries.size() << " entries"
+ << " (version " << mlog->version << ")" << dendl;
+
+ if (!mlog->entries.empty()) {
+ s->session->con->send_message(mlog);
+ } else {
+ mlog->put();
+ }
+ if (s->onetime)
+ mon->session_map.remove_sub(s);
+ else
+ s->next = summary_version+1;
+}
+
+/**
+ * Create a log message containing only the last message in the summary.
+ *
+ * @param mlog Log message we'll send to the client.
+ * @param level Maximum log level the client is interested in.
+ * @return 'true' if we consider we successfully populated @mlog;
+ * 'false' otherwise.
+ */
+bool LogMonitor::_create_sub_summary(MLog *mlog, int level)
+{
+ dout(10) << __func__ << dendl;
+
+ assert(mlog != NULL);
+
+ if (!summary.tail.size())
+ return false;
+
+ list<LogEntry>::reverse_iterator it = summary.tail.rbegin();
+ for (; it != summary.tail.rend(); ++it) {
+ LogEntry e = *it;
+ if (e.prio < level)
+ continue;
+
+ mlog->entries.push_back(e);
+ mlog->version = summary.version;
+ break;
+ }
+
+ return true;
+}
+
+/**
+ * Create an incremental log message from version \p sv to \p summary.version
+ *
+ * @param mlog Log message we'll send to the client with the messages received
+ * since version \p sv, inclusive.
+ * @param level The max log level of the messages the client is interested in.
+ * @param sv The version the client is looking for.
+ */
+void LogMonitor::_create_sub_incremental(MLog *mlog, int level, version_t sv)
+{
+ dout(10) << __func__ << " level " << level << " ver " << sv
+ << " cur summary ver " << summary.version << dendl;
+
+ if (sv < get_first_committed()) {
+ dout(10) << __func__ << " skipped from " << sv
+ << " to first_committed " << get_first_committed() << dendl;
+ LogEntry le;
+ le.stamp = ceph_clock_now();
+ le.prio = CLOG_WARN;
+ ostringstream ss;
+ ss << "skipped log messages from " << sv << " to " << get_first_committed();
+ le.msg = ss.str();
+ mlog->entries.push_back(le);
+ sv = get_first_committed();
+ }
+
+ version_t summary_ver = summary.version;
+ while (sv <= summary_ver) {
+ bufferlist bl;
+ int err = get_version(sv, bl);
+ assert(err == 0);
+ assert(bl.length());
+ bufferlist::iterator p = bl.begin();
+ __u8 v;
+ ::decode(v,p);
+ while (!p.end()) {
+ LogEntry le;
+ le.decode(p);
+
+ if (le.prio < level) {
+ dout(20) << __func__ << " requested " << level
+ << " entry " << le.prio << dendl;
+ continue;
+ }
+
+ mlog->entries.push_back(le);
+ }
+ mlog->version = sv++;
+ }
+
+ dout(10) << __func__ << " incremental message ready ("
+ << mlog->entries.size() << " entries)" << dendl;
+}
+
+void LogMonitor::update_log_channels()
+{
+ ostringstream oss;
+
+ channels.clear();
+
+ int r = get_conf_str_map_helper(g_conf->mon_cluster_log_to_syslog,
+ oss, &channels.log_to_syslog,
+ CLOG_CONFIG_DEFAULT_KEY);
+ if (r < 0) {
+ derr << __func__ << " error parsing 'mon_cluster_log_to_syslog'" << dendl;
+ return;
+ }
+
+ r = get_conf_str_map_helper(g_conf->mon_cluster_log_to_syslog_level,
+ oss, &channels.syslog_level,
+ CLOG_CONFIG_DEFAULT_KEY);
+ if (r < 0) {
+ derr << __func__ << " error parsing 'mon_cluster_log_to_syslog_level'"
+ << dendl;
+ return;
+ }
+
+ r = get_conf_str_map_helper(g_conf->mon_cluster_log_to_syslog_facility,
+ oss, &channels.syslog_facility,
+ CLOG_CONFIG_DEFAULT_KEY);
+ if (r < 0) {
+ derr << __func__ << " error parsing 'mon_cluster_log_to_syslog_facility'"
+ << dendl;
+ return;
+ }
+
+ r = get_conf_str_map_helper(g_conf->mon_cluster_log_file, oss,
+ &channels.log_file,
+ CLOG_CONFIG_DEFAULT_KEY);
+ if (r < 0) {
+ derr << __func__ << " error parsing 'mon_cluster_log_file'" << dendl;
+ return;
+ }
+
+ r = get_conf_str_map_helper(g_conf->mon_cluster_log_file_level, oss,
+ &channels.log_file_level,
+ CLOG_CONFIG_DEFAULT_KEY);
+ if (r < 0) {
+ derr << __func__ << " error parsing 'mon_cluster_log_file_level'"
+ << dendl;
+ return;
+ }
+
+ r = get_conf_str_map_helper(g_conf->mon_cluster_log_to_graylog, oss,
+ &channels.log_to_graylog,
+ CLOG_CONFIG_DEFAULT_KEY);
+ if (r < 0) {
+ derr << __func__ << " error parsing 'mon_cluster_log_to_graylog'"
+ << dendl;
+ return;
+ }
+
+ r = get_conf_str_map_helper(g_conf->mon_cluster_log_to_graylog_host, oss,
+ &channels.log_to_graylog_host,
+ CLOG_CONFIG_DEFAULT_KEY);
+ if (r < 0) {
+ derr << __func__ << " error parsing 'mon_cluster_log_to_graylog_host'"
+ << dendl;
+ return;
+ }
+
+ r = get_conf_str_map_helper(g_conf->mon_cluster_log_to_graylog_port, oss,
+ &channels.log_to_graylog_port,
+ CLOG_CONFIG_DEFAULT_KEY);
+ if (r < 0) {
+ derr << __func__ << " error parsing 'mon_cluster_log_to_graylog_port'"
+ << dendl;
+ return;
+ }
+
+ channels.expand_channel_meta();
+}
+
+void LogMonitor::log_channel_info::expand_channel_meta(map<string,string> &m)
+{
+ generic_dout(20) << __func__ << " expand map: " << m << dendl;
+ for (map<string,string>::iterator p = m.begin(); p != m.end(); ++p) {
+ m[p->first] = expand_channel_meta(p->second, p->first);
+ }
+ generic_dout(20) << __func__ << " expanded map: " << m << dendl;
+}
+
+string LogMonitor::log_channel_info::expand_channel_meta(
+ const string &input,
+ const string &change_to)
+{
+ size_t pos = string::npos;
+ string s(input);
+ while ((pos = s.find(LOG_META_CHANNEL)) != string::npos) {
+ string tmp = s.substr(0, pos) + change_to;
+ if (pos+LOG_META_CHANNEL.length() < s.length())
+ tmp += s.substr(pos+LOG_META_CHANNEL.length());
+ s = tmp;
+ }
+ generic_dout(20) << __func__ << " from '" << input
+ << "' to '" << s << "'" << dendl;
+
+ return s;
+}
+
+bool LogMonitor::log_channel_info::do_log_to_syslog(const string &channel) {
+ string v = get_str_map_key(log_to_syslog, channel,
+ &CLOG_CONFIG_DEFAULT_KEY);
+ // We expect booleans, but they are in k/v pairs, kept
+ // as strings, in 'log_to_syslog'. We must ensure
+ // compatibility with existing boolean handling, and so
+ // we are here using a modified version of how
+ // md_config_t::set_val_raw() handles booleans. We will
+ // accept both 'true' and 'false', but will also check for
+ // '1' and '0'. The main distiction between this and the
+ // original code is that we will assume everything not '1',
+ // '0', 'true' or 'false' to be 'false'.
+ bool ret = false;
+
+ if (boost::iequals(v, "false")) {
+ ret = false;
+ } else if (boost::iequals(v, "true")) {
+ ret = true;
+ } else {
+ std::string err;
+ int b = strict_strtol(v.c_str(), 10, &err);
+ ret = (err.empty() && b == 1);
+ }
+
+ return ret;
+}
+
+ceph::logging::Graylog::Ref LogMonitor::log_channel_info::get_graylog(
+ const string &channel)
+{
+ generic_dout(25) << __func__ << " for channel '"
+ << channel << "'" << dendl;
+
+ if (graylogs.count(channel) == 0) {
+ auto graylog(std::make_shared<ceph::logging::Graylog>("mon"));
+
+ graylog->set_fsid(g_conf->get_val<uuid_d>("fsid"));
+ graylog->set_hostname(g_conf->host);
+ graylog->set_destination(get_str_map_key(log_to_graylog_host, channel,
+ &CLOG_CONFIG_DEFAULT_KEY),
+ atoi(get_str_map_key(log_to_graylog_port, channel,
+ &CLOG_CONFIG_DEFAULT_KEY).c_str()));
+
+ graylogs[channel] = graylog;
+ generic_dout(20) << __func__ << " for channel '"
+ << channel << "' to graylog host '"
+ << log_to_graylog_host[channel] << ":"
+ << log_to_graylog_port[channel]
+ << "'" << dendl;
+ }
+ return graylogs[channel];
+}
+
+void LogMonitor::handle_conf_change(const struct md_config_t *conf,
+ const std::set<std::string> &changed)
+{
+ if (changed.count("mon_cluster_log_to_syslog") ||
+ changed.count("mon_cluster_log_to_syslog_level") ||
+ changed.count("mon_cluster_log_to_syslog_facility") ||
+ changed.count("mon_cluster_log_file") ||
+ changed.count("mon_cluster_log_file_level") ||
+ changed.count("mon_cluster_log_to_graylog") ||
+ changed.count("mon_cluster_log_to_graylog_host") ||
+ changed.count("mon_cluster_log_to_graylog_port")) {
+ update_log_channels();
+ }
+}
Code Review / stor4nfv.git / blobdiff