remove ceph code

[stor4nfv.git] / src / ceph / src / mds / MDBalancer.h

diff --git a/src/ceph/src/mds/MDBalancer.h b/src/ceph/src/mds/MDBalancer.h
deleted file mode 100644 (file)
index d23185b..0000000
--- a/src/ceph/src/mds/MDBalancer.h
+++ /dev/null
@@ -1,150 +0,0 @@
-// -*- 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_MDBALANCER_H
-#define CEPH_MDBALANCER_H
-
-#include <list>
-#include <map>
-using std::list;
-using std::map;
-
-#include "include/types.h"
-#include "common/Clock.h"
-#include "common/Cond.h"
-
-class MDSRank;
-class Message;
-class MHeartbeat;
-class CInode;
-class CDir;
-class Messenger;
-class MonClient;
-
-class MDBalancer {
-  friend class C_Bal_SendHeartbeat;
-public:
-  MDBalancer(MDSRank *m, Messenger *msgr, MonClient *monc) : 
-    mds(m),
-    messenger(msgr),
-    mon_client(monc),
-    beat_epoch(0),
-    last_epoch_under(0), my_load(0.0), target_load(0.0)
-    { }
-
-  mds_load_t get_load(utime_t);
-
-  int proc_message(Message *m);
-
-  /**
-   * Regularly called upkeep function.
-   *
-   * Sends MHeartbeat messages to the mons.
-   */
-  void tick();
-
-  void subtract_export(CDir *ex, utime_t now);
-  void add_import(CDir *im, utime_t now);
-
-  void hit_inode(utime_t now, CInode *in, int type, int who=-1);
-  void hit_dir(utime_t now, CDir *dir, int type, int who=-1, double amount=1.0);
-
-  void queue_split(const CDir *dir, bool fast);
-  void queue_merge(CDir *dir);
-
-  /**
-   * Based on size and configuration, decide whether to issue a queue_split
-   * or queue_merge for this CDir.
-   *
-   * \param hot whether the directory's temperature is enough to split it
-   */
-  void maybe_fragment(CDir *dir, bool hot);
-
-  void handle_mds_failure(mds_rank_t who);
-
-private:
-  typedef struct {
-    std::map<mds_rank_t, double> targets;
-    std::map<mds_rank_t, double> imported;
-    std::map<mds_rank_t, double> exported;
-  } balance_state_t;
-
-  //set up the rebalancing targets for export and do one if the
-  //MDSMap is up to date
-  void prep_rebalance(int beat);
-  int mantle_prep_rebalance();
-
-  void handle_export_pins(void);
-
-  void export_empties();
-  int localize_balancer();
-  void send_heartbeat();
-  void handle_heartbeat(MHeartbeat *m);
-  void find_exports(CDir *dir,
-                    double amount,
-                    list<CDir*>& exports,
-                    double& have,
-                    set<CDir*>& already_exporting);
-
-  double try_match(balance_state_t &state,
-                   mds_rank_t ex, double& maxex,
-                   mds_rank_t im, double& maxim);
-
-  double get_maxim(balance_state_t &state, mds_rank_t im) {
-    return target_load - mds_meta_load[im] - state.imported[im];
-  }
-  double get_maxex(balance_state_t &state, mds_rank_t ex) {
-    return mds_meta_load[ex] - target_load - state.exported[ex];
-  }
-
-  /**
-   * Try to rebalance.
-   *
-   * Check if the monitor has recorded the current export targets;
-   * if it has then do the actual export. Otherwise send off our
-   * export targets message again.
-   */
-  void try_rebalance(balance_state_t& state);
-
-  MDSRank *mds;
-  Messenger *messenger;
-  MonClient *mon_client;
-  int beat_epoch;
-
-  int last_epoch_under;
-  string bal_code;
-  string bal_version;
-
-  utime_t last_heartbeat;
-  utime_t last_sample;
-  utime_t rebalance_time; //ensure a consistent view of load for rebalance
-
-  // Dirfrags which are marked to be passed on to MDCache::[split|merge]_dir
-  // just as soon as a delayed context comes back and triggers it.
-  // These sets just prevent us from spawning extra timer contexts for
-  // dirfrags that already have one in flight.
-  set<dirfrag_t>   split_pending, merge_pending;
-
-  // per-epoch scatter/gathered info
-  map<mds_rank_t, mds_load_t>  mds_load;
-  map<mds_rank_t, double>       mds_meta_load;
-  map<mds_rank_t, map<mds_rank_t, float> > mds_import_map;
-
-  // per-epoch state
-  double          my_load, target_load;
-};
-
-#endif