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Diffstat (limited to '')
| -rw-r--r-- | src/common/LogClient.h | 253 |
1 files changed, 253 insertions, 0 deletions
diff --git a/src/common/LogClient.h b/src/common/LogClient.h new file mode 100644 index 000000000..c20fde4f1 --- /dev/null +++ b/src/common/LogClient.h @@ -0,0 +1,253 @@ +// -*- 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. + * + */ + +#ifndef CEPH_LOGCLIENT_H +#define CEPH_LOGCLIENT_H + +#include <atomic> +#include "common/LogEntry.h" +#include "common/ceph_mutex.h" +#include "common/ostream_temp.h" +#include "common/ref.h" +#include "include/health.h" + +class LogClient; +class MLog; +class MLogAck; +class Messenger; +class MonMap; +class Message; +struct uuid_d; +struct Connection; + +class LogChannel; + +namespace ceph { +namespace logging { + class Graylog; +} +} + +int parse_log_client_options(CephContext *cct, + std::map<std::string,std::string> &log_to_monitors, + std::map<std::string,std::string> &log_to_syslog, + std::map<std::string,std::string> &log_channels, + std::map<std::string,std::string> &log_prios, + std::map<std::string,std::string> &log_to_graylog, + std::map<std::string,std::string> &log_to_graylog_host, + std::map<std::string,std::string> &log_to_graylog_port, + uuid_d &fsid, + std::string &host); + +/** Manage where we output to and at which priority + * + * Not to be confused with the LogClient, which is the almighty coordinator + * of channels. We just deal with the boring part of the logging: send to + * syslog, send to file, generate LogEntry and queue it for the LogClient. + * + * Past queueing the LogEntry, the LogChannel is done with the whole thing. + * LogClient will deal with sending and handling of LogEntries. + */ +class LogChannel : public OstreamTemp::OstreamTempSink +{ +public: + + LogChannel(CephContext *cct, LogClient *lc, const std::string &channel); + LogChannel(CephContext *cct, LogClient *lc, + const std::string &channel, + const std::string &facility, + const std::string &prio); + + OstreamTemp debug() { + return OstreamTemp(CLOG_DEBUG, this); + } + void debug(std::stringstream &s) { + do_log(CLOG_DEBUG, s); + } + /** + * Convenience function mapping health status to + * the appropriate cluster log severity. + */ + OstreamTemp health(health_status_t health) { + switch(health) { + case HEALTH_OK: + return info(); + case HEALTH_WARN: + return warn(); + case HEALTH_ERR: + return error(); + default: + // Invalid health_status_t value + ceph_abort(); + } + } + OstreamTemp info() { + return OstreamTemp(CLOG_INFO, this); + } + void info(std::stringstream &s) { + do_log(CLOG_INFO, s); + } + OstreamTemp warn() { + return OstreamTemp(CLOG_WARN, this); + } + void warn(std::stringstream &s) { + do_log(CLOG_WARN, s); + } + OstreamTemp error() { + return OstreamTemp(CLOG_ERROR, this); + } + void error(std::stringstream &s) { + do_log(CLOG_ERROR, s); + } + OstreamTemp sec() { + return OstreamTemp(CLOG_SEC, this); + } + void sec(std::stringstream &s) { + do_log(CLOG_SEC, s); + } + + void set_log_to_monitors(bool v); + void set_log_to_syslog(bool v) { + log_to_syslog = v; + } + void set_log_channel(const std::string& v) { + log_channel = v; + } + void set_log_prio(const std::string& v) { + log_prio = v; + } + void set_syslog_facility(const std::string& v) { + syslog_facility = v; + } + std::string get_log_prio() { return log_prio; } + std::string get_log_channel() { return log_channel; } + std::string get_syslog_facility() { return syslog_facility; } + bool must_log_to_syslog() { return log_to_syslog; } + /** + * Do we want to log to syslog? + * + * @return true if log_to_syslog is true and both channel and prio + * are not empty; false otherwise. + */ + bool do_log_to_syslog() { + return must_log_to_syslog() && + !log_prio.empty() && !log_channel.empty(); + } + bool must_log_to_monitors() { return log_to_monitors; } + + bool do_log_to_graylog() { + return (graylog != nullptr); + } + + typedef std::shared_ptr<LogChannel> Ref; + + /** + * update config values from parsed k/v std::map for each config option + * + * Pick out the relevant value based on our channel. + */ + void update_config(std::map<std::string,std::string> &log_to_monitors, + std::map<std::string,std::string> &log_to_syslog, + std::map<std::string,std::string> &log_channels, + std::map<std::string,std::string> &log_prios, + std::map<std::string,std::string> &log_to_graylog, + std::map<std::string,std::string> &log_to_graylog_host, + std::map<std::string,std::string> &log_to_graylog_port, + uuid_d &fsid, + std::string &host); + + void do_log(clog_type prio, std::stringstream& ss); + void do_log(clog_type prio, const std::string& s); + +private: + CephContext *cct; + LogClient *parent; + ceph::mutex channel_lock = ceph::make_mutex("LogChannel::channel_lock"); + std::string log_channel; + std::string log_prio; + std::string syslog_facility; + bool log_to_syslog; + bool log_to_monitors; + std::shared_ptr<ceph::logging::Graylog> graylog; + +}; + +typedef LogChannel::Ref LogChannelRef; + +class LogClient +{ +public: + enum logclient_flag_t { + NO_FLAGS = 0, + FLAG_MON = 0x1, + }; + + LogClient(CephContext *cct, Messenger *m, MonMap *mm, + enum logclient_flag_t flags); + virtual ~LogClient() { + channels.clear(); + } + + bool handle_log_ack(MLogAck *m); + ceph::ref_t<Message> get_mon_log_message(bool flush); + bool are_pending(); + + LogChannelRef create_channel() { + return create_channel(CLOG_CHANNEL_DEFAULT); + } + + LogChannelRef create_channel(const std::string& name) { + LogChannelRef c; + if (channels.count(name)) + c = channels[name]; + else { + c = std::make_shared<LogChannel>(cct, this, name); + channels[name] = c; + } + return c; + } + + void destroy_channel(const std::string& name) { + if (channels.count(name)) + channels.erase(name); + } + + void shutdown() { + channels.clear(); + } + + uint64_t get_next_seq(); + entity_addrvec_t get_myaddrs(); + const EntityName& get_myname(); + entity_name_t get_myrank(); + version_t queue(LogEntry &entry); + void reset(); + +private: + ceph::ref_t<Message> _get_mon_log_message(); + void _send_to_mon(); + + CephContext *cct; + Messenger *messenger; + MonMap *monmap; + bool is_mon; + ceph::mutex log_lock = ceph::make_mutex("LogClient::log_lock"); + version_t last_log_sent; + version_t last_log; + std::deque<LogEntry> log_queue; + + std::map<std::string, LogChannelRef> channels; + +}; +#endif |