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Diffstat (limited to '')
| -rw-r--r-- | src/common/LogClient.cc | 331 |
1 files changed, 331 insertions, 0 deletions
diff --git a/src/common/LogClient.cc b/src/common/LogClient.cc new file mode 100644 index 000000000..1ba363da7 --- /dev/null +++ b/src/common/LogClient.cc @@ -0,0 +1,331 @@ +// -*- 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 "common/LogClient.h" +#include "include/str_map.h" +#include "messages/MLog.h" +#include "messages/MLogAck.h" +#include "msg/Messenger.h" +#include "mon/MonMap.h" +#include "common/Graylog.h" + +#define dout_subsys ceph_subsys_monc + +using std::map; +using std::ostream; +using std::ostringstream; +using std::string; + +#undef dout_prefix +#define dout_prefix _prefix(_dout, this) +static ostream& _prefix(std::ostream *_dout, LogClient *logc) { + return *_dout << "log_client "; +} + +static ostream& _prefix(std::ostream *_dout, LogChannel *lc) { + return *_dout << "log_channel(" << lc->get_log_channel() << ") "; +} + +LogChannel::LogChannel(CephContext *cct, LogClient *lc, const string &channel) + : cct(cct), parent(lc), + log_channel(channel), log_to_syslog(false), log_to_monitors(false) +{ +} + +LogChannel::LogChannel(CephContext *cct, LogClient *lc, + const string &channel, const string &facility, + const string &prio) + : cct(cct), parent(lc), + log_channel(channel), log_prio(prio), syslog_facility(facility), + log_to_syslog(false), log_to_monitors(false) +{ +} + +LogClient::LogClient(CephContext *cct, Messenger *m, MonMap *mm, + enum logclient_flag_t flags) + : cct(cct), messenger(m), monmap(mm), is_mon(flags & FLAG_MON), + last_log_sent(0), last_log(0) +{ +} + +void LogChannel::set_log_to_monitors(bool v) +{ + if (log_to_monitors != v) { + parent->reset(); + log_to_monitors = v; + } +} + +void LogChannel::update_config(const clog_targets_conf_t& conf_strings) +{ + ldout(cct, 20) << __func__ << " log_to_monitors " << conf_strings.log_to_monitors + << " log_to_syslog " << conf_strings.log_to_syslog + << " log_channels " << conf_strings.log_channels + << " log_prios " << conf_strings.log_prios + << dendl; + + bool to_monitors = (conf_strings.log_to_monitors == "true"); + bool to_syslog = (conf_strings.log_to_syslog == "true"); + bool to_graylog = (conf_strings.log_to_graylog == "true"); + auto graylog_port = atoi(conf_strings.log_to_graylog_port.c_str()); + + set_log_to_monitors(to_monitors); + set_log_to_syslog(to_syslog); + set_syslog_facility(conf_strings.log_channels); + set_log_prio(conf_strings.log_prios); + + if (to_graylog && !graylog) { /* should but isn't */ + graylog = std::make_shared<ceph::logging::Graylog>("clog"); + } else if (!to_graylog && graylog) { /* shouldn't but is */ + graylog.reset(); + } + + if (to_graylog && graylog) { + graylog->set_fsid(conf_strings.fsid); + graylog->set_hostname(conf_strings.host); + } + + if (graylog && !conf_strings.log_to_graylog_host.empty() && (graylog_port != 0)) { + graylog->set_destination(conf_strings.log_to_graylog_host, graylog_port); + } + + ldout(cct, 10) << __func__ + << " to_monitors: " << (to_monitors ? "true" : "false") + << " to_syslog: " << (to_syslog ? "true" : "false") + << " syslog_facility: " << conf_strings.log_channels + << " prio: " << conf_strings.log_prios + << " to_graylog: " << (to_graylog ? "true" : "false") + << " graylog_host: " << conf_strings.log_to_graylog_host + << " graylog_port: " << graylog_port + << ")" << dendl; +} + +clog_targets_conf_t LogChannel::parse_client_options(CephContext* conf_cct) +{ + auto parsed_options = parse_log_client_options(conf_cct); + update_config(parsed_options); + return parsed_options; +} + +clog_targets_conf_t LogChannel::parse_log_client_options(CephContext* cct) +{ + clog_targets_conf_t targets; + + targets.log_to_monitors = + get_value_via_strmap(cct->_conf.get_val<string>("clog_to_monitors"), + log_channel, CLOG_CONFIG_DEFAULT_KEY); + targets.log_to_syslog = + get_value_via_strmap(cct->_conf.get_val<string>("clog_to_syslog"), + log_channel, CLOG_CONFIG_DEFAULT_KEY); + targets.log_channels = + get_value_via_strmap(cct->_conf.get_val<string>("clog_to_syslog_facility"), + log_channel, CLOG_CONFIG_DEFAULT_KEY); + targets.log_prios = + get_value_via_strmap(cct->_conf.get_val<string>("clog_to_syslog_level"), + log_channel, CLOG_CONFIG_DEFAULT_KEY); + targets.log_to_graylog = + get_value_via_strmap(cct->_conf.get_val<string>("clog_to_graylog"), + log_channel, CLOG_CONFIG_DEFAULT_KEY); + targets.log_to_graylog_host = + get_value_via_strmap(cct->_conf.get_val<string>("clog_to_graylog_host"), + log_channel, CLOG_CONFIG_DEFAULT_KEY); + targets.log_to_graylog_port = + get_value_via_strmap(cct->_conf.get_val<string>("clog_to_graylog_port"), + log_channel, CLOG_CONFIG_DEFAULT_KEY); + + targets.fsid = cct->_conf.get_val<uuid_d>("fsid"); + targets.host = cct->_conf->host; + return targets; +} + +void LogChannel::do_log(clog_type prio, std::stringstream& ss) +{ + while (!ss.eof()) { + string s; + getline(ss, s); + if (!s.empty()) + do_log(prio, s); + } +} + +void LogChannel::do_log(clog_type prio, const std::string& s) +{ + std::lock_guard l(channel_lock); + if (CLOG_ERROR == prio) { + ldout(cct,-1) << "log " << prio << " : " << s << dendl; + } else { + ldout(cct,0) << "log " << prio << " : " << s << dendl; + } + LogEntry e; + e.stamp = ceph_clock_now(); + // seq and who should be set for syslog/graylog/log_to_mon + e.addrs = parent->get_myaddrs(); + e.name = parent->get_myname(); + e.rank = parent->get_myrank(); + e.prio = prio; + e.msg = s; + e.channel = get_log_channel(); + + // log to monitor? + if (log_to_monitors) { + e.seq = parent->queue(e); + } else { + e.seq = parent->get_next_seq(); + } + + // log to syslog? + if (do_log_to_syslog()) { + ldout(cct,0) << __func__ << " log to syslog" << dendl; + e.log_to_syslog(get_log_prio(), get_syslog_facility()); + } + + // log to graylog? + if (do_log_to_graylog()) { + ldout(cct,0) << __func__ << " log to graylog" << dendl; + graylog->log_log_entry(&e); + } +} + +ceph::ref_t<Message> LogClient::get_mon_log_message(bool flush) +{ + std::lock_guard l(log_lock); + if (flush) { + if (log_queue.empty()) + return nullptr; + // reset session + last_log_sent = log_queue.front().seq; + } + return _get_mon_log_message(); +} + +bool LogClient::are_pending() +{ + std::lock_guard l(log_lock); + return last_log > last_log_sent; +} + +ceph::ref_t<Message> LogClient::_get_mon_log_message() +{ + ceph_assert(ceph_mutex_is_locked(log_lock)); + if (log_queue.empty()) + return {}; + + // only send entries that haven't been sent yet during this mon + // session! monclient needs to call reset_session() on mon session + // reset for this to work right. + + if (last_log_sent == last_log) + return {}; + + // limit entries per message + unsigned num_unsent = last_log - last_log_sent; + unsigned num_send; + if (cct->_conf->mon_client_max_log_entries_per_message > 0) + num_send = std::min(num_unsent, (unsigned)cct->_conf->mon_client_max_log_entries_per_message); + else + num_send = num_unsent; + + ldout(cct,10) << " log_queue is " << log_queue.size() << " last_log " << last_log << " sent " << last_log_sent + << " num " << log_queue.size() + << " unsent " << num_unsent + << " sending " << num_send << dendl; + ceph_assert(num_unsent <= log_queue.size()); + std::deque<LogEntry>::iterator p = log_queue.begin(); + std::deque<LogEntry> o; + while (p->seq <= last_log_sent) { + ++p; + ceph_assert(p != log_queue.end()); + } + while (num_send--) { + ceph_assert(p != log_queue.end()); + o.push_back(*p); + last_log_sent = p->seq; + ldout(cct,10) << " will send " << *p << dendl; + ++p; + } + + return ceph::make_message<MLog>(monmap->get_fsid(), + std::move(o)); +} + +void LogClient::_send_to_mon() +{ + ceph_assert(ceph_mutex_is_locked(log_lock)); + ceph_assert(is_mon); + ceph_assert(messenger->get_myname().is_mon()); + ldout(cct,10) << __func__ << " log to self" << dendl; + auto log = _get_mon_log_message(); + messenger->get_loopback_connection()->send_message2(std::move(log)); +} + +version_t LogClient::queue(LogEntry &entry) +{ + std::lock_guard l(log_lock); + entry.seq = ++last_log; + log_queue.push_back(entry); + + if (is_mon) { + _send_to_mon(); + } + + return entry.seq; +} + +void LogClient::reset() +{ + std::lock_guard l(log_lock); + if (log_queue.size()) { + log_queue.clear(); + } + last_log_sent = last_log; +} + +uint64_t LogClient::get_next_seq() +{ + std::lock_guard l(log_lock); + return ++last_log; +} + +entity_addrvec_t LogClient::get_myaddrs() +{ + return messenger->get_myaddrs(); +} + +entity_name_t LogClient::get_myrank() +{ + return messenger->get_myname(); +} + +const EntityName& LogClient::get_myname() +{ + return cct->_conf->name; +} + +bool LogClient::handle_log_ack(MLogAck *m) +{ + std::lock_guard l(log_lock); + ldout(cct,10) << "handle_log_ack " << *m << dendl; + + version_t last = m->last; + + auto q = log_queue.begin(); + while (q != log_queue.end()) { + const LogEntry &entry(*q); + if (entry.seq > last) + break; + ldout(cct,10) << " logged " << entry << dendl; + q = log_queue.erase(q); + } + return true; +} |