remove ceph code

[stor4nfv.git] / src / ceph / src / mds / Mantle.cc

diff --git a/src/ceph/src/mds/Mantle.cc b/src/ceph/src/mds/Mantle.cc
deleted file mode 100644 (file)
index 18d1bc6..0000000
--- a/src/ceph/src/mds/Mantle.cc
+++ /dev/null
@@ -1,130 +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) 2016 Michael Sevilla <mikesevilla3@gmail.com>
- *
- * 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 "mdstypes.h"
-#include "MDSRank.h"
-#include "Mantle.h"
-#include "msg/Messenger.h"
-#include "common/Clock.h"
-#include "CInode.h"
-
-#include <fstream>
-
-#define dout_context g_ceph_context
-#define dout_subsys ceph_subsys_mds_balancer
-#undef dout_prefix
-#define dout_prefix *_dout << "mds.mantle "
-#define mantle_dout(lvl) \
-  do {\
-    auto subsys = ceph_subsys_mds;\
-    if ((dout_context)->_conf->subsys.should_gather(ceph_subsys_mds_balancer, lvl)) {\
-      subsys = ceph_subsys_mds_balancer;\
-    }\
-    dout_impl(dout_context, subsys, lvl) dout_prefix
-
-#define mantle_dendl dendl; } while (0)
-
-
-static int dout_wrapper(lua_State *L)
-{
-  int level = luaL_checkinteger(L, 1);
-  lua_concat(L, lua_gettop(L)-1);
-  mantle_dout(level) << lua_tostring(L, 2) << mantle_dendl;
-  return 0;
-}
-
-int Mantle::balance(const std::string &script,
-                    mds_rank_t whoami,
-                    const std::vector<std::map<std::string, double>> &metrics,
-                    std::map<mds_rank_t, double> &my_targets)
-{
-  lua_settop(L, 0); /* clear the stack */
-
-  /* load the balancer */
-  if (luaL_loadstring(L, script.c_str())) {
-    mantle_dout(0) << "WARNING: mantle could not load balancer: "
-            << lua_tostring(L, -1) << mantle_dendl;
-    return -EINVAL;
-  }
-
-  /* tell the balancer which mds is making the decision */
-  lua_pushinteger(L, (lua_Integer)whoami);
-  lua_setglobal(L, "whoami");
-
-  /* global mds metrics to hold all dictionaries */
-  lua_newtable(L);
-
-  /* push name of mds (i) and its metrics onto Lua stack */
-  for (size_t i=0; i < metrics.size(); i++) {
-    lua_newtable(L);
-
-    /* push values into this mds's table; setfield assigns key/pops val */
-    for (const auto &it : metrics[i]) {
-      lua_pushnumber(L, it.second);
-      lua_setfield(L, -2, it.first.c_str());
-    }
-
-    /* in global mds table at stack[-3], set k=stack[-1] to v=stack[-2] */
-    lua_seti(L, -2, i);
-  }
-
-  /* set the name of the global mds table */
-  lua_setglobal(L, "mds");
-
-  assert(lua_gettop(L) == 1);
-  if (lua_pcall(L, 0, 1, 0) != LUA_OK) {
-    mantle_dout(0) << "WARNING: mantle could not execute script: "
-            << lua_tostring(L, -1) << mantle_dendl;
-    return -EINVAL;
-  }
-
-  /* parse response by iterating over Lua stack */
-  if (lua_istable(L, -1) == 0) {
-    mantle_dout(0) << "WARNING: mantle script returned a malformed response" << mantle_dendl;
-    return -EINVAL;
-  }
-
-  /* fill in return value */
-  for (lua_pushnil(L); lua_next(L, -2); lua_pop(L, 1)) {
-    if (!lua_isinteger(L, -2) || !lua_isnumber(L, -1)) {
-      mantle_dout(0) << "WARNING: mantle script returned a malformed response" << mantle_dendl;
-      return -EINVAL;
-    }
-    mds_rank_t rank(lua_tointeger(L, -2));
-    my_targets[rank] = lua_tonumber(L, -1);
-  }
-
-  return 0;
-}
-
-Mantle::Mantle (void)
-{
-  /* build lua vm state */
-  L = luaL_newstate();
-  if (!L) {
-    mantle_dout(0) << "WARNING: mantle could not load Lua state" << mantle_dendl;
-    throw std::bad_alloc();
-  }
-
-  /* balancer policies can use basic Lua functions */
-  luaopen_base(L);
-  luaopen_coroutine(L);
-  luaopen_string(L);
-  luaopen_math(L);
-  luaopen_table(L);
-  luaopen_utf8(L);
-
-  /* setup debugging */
-  lua_register(L, "BAL_LOG", dout_wrapper);
-}