]> git.proxmox.com Git - ceph.git/blobdiff - ceph/src/rgw/rgw_rados.cc
update sources to 12.2.7
[ceph.git] / ceph / src / rgw / rgw_rados.cc
index 9df547a19ade5cabb20b5cc96fd146aa71b47f37..100f77a699bc0310cfb1b0684cfd7dc174f9dedf 100644 (file)
@@ -1,4 +1,3 @@
-
 // -*- mode:C++; tab-width:8; c-basic-offset:2; indent-tabs-mode:t -*-
 // vim: ts=8 sw=2 smarttab
 
@@ -171,6 +170,14 @@ int rgw_init_ioctx(librados::Rados *rados, const rgw_pool& pool, IoCtx& ioctx, b
   int r = rados->ioctx_create(pool.name.c_str(), ioctx);
   if (r == -ENOENT && create) {
     r = rados->pool_create(pool.name.c_str());
+    if (r == -ERANGE) {
+      dout(0)
+        << __func__
+        << " ERROR: librados::Rados::pool_create returned " << cpp_strerror(-r)
+        << " (this can be due to a pool or placement group misconfiguration, e.g."
+        << " pg_num < pgp_num or mon_max_pg_per_osd exceeded)"
+        << dendl;
+    }
     if (r < 0 && r != -EEXIST) {
       return r;
     }
@@ -481,9 +488,9 @@ int RGWZoneGroup::read_default_id(string& default_id, bool old_format)
     /* try using default realm */
     RGWRealm realm;
     int ret = realm.init(cct, store);
+    // no default realm exist
     if (ret < 0) {
-      ldout(cct, 10) << "could not read realm id: " << cpp_strerror(-ret) << dendl;
-      return -ENOENT;
+      return read_id(default_zonegroup_name, default_id);
     }
     realm_id = realm.get_id();
   }
@@ -1807,9 +1814,9 @@ int RGWZoneParams::read_default_id(string& default_id, bool old_format)
     /* try using default realm */
     RGWRealm realm;
     int ret = realm.init(cct, store);
+    //no default realm exist
     if (ret < 0) {
-      ldout(cct, 10) << "could not read realm id: " << cpp_strerror(-ret) << dendl;
-      return -ENOENT;
+      return read_id(default_zone_name, default_id);
     }
     realm_id = realm.get_id();
   }
@@ -2792,6 +2799,22 @@ int RGWPutObjProcessor_Atomic::do_complete(size_t accounted_size, const string&
   return 0;
 }
 
+const char* RGWRados::admin_commands[4][3] = {
+  { "cache list",
+    "cache list name=filter,type=CephString,req=false",
+    "cache list [filter_str]: list object cache, possibly matching substrings" },
+  { "cache inspect",
+    "cache inspect name=target,type=CephString,req=true",
+    "cache inspect target: print cache element" },
+  { "cache erase",
+    "cache erase name=target,type=CephString,req=true",
+    "cache erase target: erase element from cache" },
+  { "cache zap",
+    "cache zap",
+    "cache zap: erase all elements from cache" }
+};
+
+
 int RGWRados::watch(const string& oid, uint64_t *watch_handle, librados::WatchCtx2 *ctx) {
   int r = control_pool_ctx.watch2(oid, watch_handle, ctx);
   if (r < 0)
@@ -3210,8 +3233,10 @@ class RGWDataSyncProcessorThread : public RGWSyncProcessorThread
   }
 public:
   RGWDataSyncProcessorThread(RGWRados *_store, RGWAsyncRadosProcessor *async_rados,
-                             const string& _source_zone)
-    : RGWSyncProcessorThread(_store, "data-sync"), sync(_store, async_rados, _source_zone),
+                             const string& _source_zone,
+                             rgw::BucketChangeObserver *observer)
+    : RGWSyncProcessorThread(_store, "data-sync"),
+      sync(_store, async_rados, _source_zone, observer),
       initialized(false) {}
 
   void wakeup_sync_shards(map<int, set<string> >& shard_ids) {
@@ -3247,15 +3272,18 @@ class RGWSyncLogTrimThread : public RGWSyncProcessorThread
 {
   RGWCoroutinesManager crs;
   RGWRados *store;
+  rgw::BucketTrimManager *bucket_trim;
   RGWHTTPManager http;
   const utime_t trim_interval;
 
   uint64_t interval_msec() override { return 0; }
   void stop_process() override { crs.stop(); }
 public:
-  RGWSyncLogTrimThread(RGWRados *store, int interval)
+  RGWSyncLogTrimThread(RGWRados *store, rgw::BucketTrimManager *bucket_trim,
+                       int interval)
     : RGWSyncProcessorThread(store, "sync-log-trim"),
       crs(store->ctx(), store->get_cr_registry()), store(store),
+      bucket_trim(bucket_trim),
       http(store->ctx(), crs.get_completion_mgr()),
       trim_interval(interval, 0)
   {}
@@ -3277,6 +3305,10 @@ public:
                                        trim_interval));
     stacks.push_back(data);
 
+    auto bucket = new RGWCoroutinesStack(store->ctx(), &crs);
+    bucket->call(bucket_trim->create_bucket_trim_cr(&http));
+    stacks.push_back(bucket);
+
     crs.run(stacks);
     return 0;
   }
@@ -3660,6 +3692,15 @@ bool RGWIndexCompletionManager::handle_completion(completion_t cb, complete_op_d
 
 void RGWRados::finalize()
 {
+  auto admin_socket = cct->get_admin_socket();
+  for (auto cmd : admin_commands) {
+    int r = admin_socket->unregister_command(cmd[0]);
+    if (r < 0) {
+      lderr(cct) << "ERROR: fail to unregister admin socket command (r=" << r
+                 << ")" << dendl;
+    }
+  }
+
   if (run_sync_thread) {
     Mutex::Locker l(meta_sync_thread_lock);
     meta_sync_processor_thread->stop();
@@ -3687,6 +3728,7 @@ void RGWRados::finalize()
     data_sync_processor_threads.clear();
     delete sync_log_trimmer;
     sync_log_trimmer = nullptr;
+    bucket_trim = boost::none;
   }
   if (finisher) {
     finisher->stop();
@@ -3763,6 +3805,17 @@ void RGWRados::finalize()
 int RGWRados::init_rados()
 {
   int ret = 0;
+  auto admin_socket = cct->get_admin_socket();
+  for (auto cmd : admin_commands) {
+    int r = admin_socket->register_command(cmd[0], cmd[1], this,
+                                           cmd[2]);
+    if (r < 0) {
+      lderr(cct) << "ERROR: fail to register admin socket command (r=" << r
+                 << ")" << dendl;
+      return r;
+    }
+  }
+
   auto handles = std::vector<librados::Rados>{cct->_conf->rgw_num_rados_handles};
 
   for (auto& r : handles) {
@@ -4494,13 +4547,6 @@ int RGWRados::init_complete()
     obj_expirer->start_processor();
   }
 
-  if (run_sync_thread) {
-    // initialize the log period history. we want to do this any time we're not
-    // running under radosgw-admin, so we check run_sync_thread here before
-    // disabling it based on the zone/zonegroup setup
-    meta_mgr->init_oldest_log_period();
-  }
-
   /* no point of running sync thread if we don't have a master zone configured
     or there is no rest_master_conn */
   if (get_zonegroup().master_zone.empty() || !rest_master_conn
@@ -4508,6 +4554,11 @@ int RGWRados::init_complete()
     run_sync_thread = false;
   }
 
+  if (run_sync_thread) {
+    // initialize the log period history
+    meta_mgr->init_oldest_log_period();
+  }
+
   async_rados = new RGWAsyncRadosProcessor(this, cct->_conf->rgw_num_async_rados_threads);
   async_rados->start();
 
@@ -4534,10 +4585,22 @@ int RGWRados::init_complete()
     }
     meta_sync_processor_thread->start();
 
+    // configure the bucket trim manager
+    rgw::BucketTrimConfig config;
+    rgw::configure_bucket_trim(cct, config);
+
+    bucket_trim.emplace(this, config);
+    ret = bucket_trim->init();
+    if (ret < 0) {
+      ldout(cct, 0) << "ERROR: failed to start bucket trim manager" << dendl;
+      return ret;
+    }
+
     Mutex::Locker dl(data_sync_thread_lock);
     for (auto iter : zone_data_sync_from_map) {
       ldout(cct, 5) << "starting data sync thread for zone " << iter.first << dendl;
-      RGWDataSyncProcessorThread *thread = new RGWDataSyncProcessorThread(this, async_rados, iter.first);
+      auto *thread = new RGWDataSyncProcessorThread(this, async_rados, iter.first,
+                                                    &*bucket_trim);
       ret = thread->init();
       if (ret < 0) {
         ldout(cct, 0) << "ERROR: failed to initialize data sync thread" << dendl;
@@ -4548,7 +4611,7 @@ int RGWRados::init_complete()
     }
     auto interval = cct->_conf->rgw_sync_log_trim_interval;
     if (interval > 0) {
-      sync_log_trimmer = new RGWSyncLogTrimThread(this, interval);
+      sync_log_trimmer = new RGWSyncLogTrimThread(this, &*bucket_trim, interval);
       ret = sync_log_trimmer->init();
       if (ret < 0) {
         ldout(cct, 0) << "ERROR: failed to initialize sync log trim thread" << dendl;
@@ -4806,28 +4869,10 @@ void RGWRados::pick_control_oid(const string& key, string& notify_oid)
   notify_oid.append(buf);
 }
 
-int RGWRados::open_pool_ctx(const rgw_pool& pool, librados::IoCtx&  io_ctx)
+int RGWRados::open_pool_ctx(const rgw_pool& pool, librados::IoCtx& io_ctx)
 {
-  librados::Rados *rad = get_rados_handle();
-  int r = rgw_init_ioctx(rad, pool, io_ctx);
-  if (r != -ENOENT)
-    return r;
-
-  if (!pools_initialized)
-    return r;
-
-  r = rad->pool_create(pool.name.c_str());
-  if (r < 0 && r != -EEXIST)
-    return r;
-
-  r = rgw_init_ioctx(rad, pool, io_ctx);
-  if (r < 0)
-    return r;
-
-  r = io_ctx.application_enable(pg_pool_t::APPLICATION_NAME_RGW, false);
-  if (r < 0 && r != -EOPNOTSUPP)
-    return r;
-  return 0;
+  constexpr bool create = true; // create the pool if it doesn't exist
+  return rgw_init_ioctx(get_rados_handle(), pool, io_ctx, create);
 }
 
 void RGWRados::build_bucket_index_marker(const string& shard_id_str, const string& shard_marker,
@@ -4841,6 +4886,12 @@ void RGWRados::build_bucket_index_marker(const string& shard_id_str, const strin
 
 int RGWRados::open_bucket_index_ctx(const RGWBucketInfo& bucket_info, librados::IoCtx& index_ctx)
 {
+  const rgw_pool& explicit_pool = bucket_info.bucket.explicit_placement.index_pool;
+
+  if (!explicit_pool.empty()) {
+    return open_pool_ctx(explicit_pool, index_ctx);
+  }
+
   const string *rule = &bucket_info.placement_rule;
   if (rule->empty()) {
     rule = &zonegroup.default_placement;
@@ -5140,16 +5191,12 @@ int RGWRados::trim_usage(rgw_user& user, uint64_t start_epoch, uint64_t end_epoc
   usage_log_hash(cct, user_str, first_hash, index);
 
   hash = first_hash;
-
   do {
     int ret =  cls_obj_usage_log_trim(hash, user_str, start_epoch, end_epoch);
-    if (ret == -ENOENT)
-      goto next;
 
-    if (ret < 0)
+    if (ret < 0 && ret != -ENOENT)
       return ret;
 
-next:
     usage_log_hash(cct, user_str, hash, ++index);
   } while (hash != first_hash);
 
@@ -5557,17 +5604,13 @@ int RGWRados::Bucket::List::list_objects(int64_t max,
   result->clear();
 
   rgw_obj_key marker_obj(params.marker.name, params.marker.instance, params.ns);
-
-  rgw_obj_key end_marker_obj;
-  rgw_obj_index_key cur_end_marker;
-  if (!params.ns.empty()) {
-    end_marker_obj = rgw_obj_key(params.end_marker.name, params.end_marker.instance, params.ns);
-    end_marker_obj.ns = params.ns;
-    end_marker_obj.get_index_key(&cur_end_marker);
-  }
   rgw_obj_index_key cur_marker;
   marker_obj.get_index_key(&cur_marker);
 
+  rgw_obj_key end_marker_obj(params.end_marker.name, params.end_marker.instance,
+                             params.ns);
+  rgw_obj_index_key cur_end_marker;
+  end_marker_obj.get_index_key(&cur_end_marker);
   const bool cur_end_marker_valid = !params.end_marker.empty();
 
   rgw_obj_key prefix_obj(params.prefix);
@@ -5714,31 +5757,9 @@ done:
  */
 int RGWRados::create_pool(const rgw_pool& pool)
 {
-  int ret = 0;
-
-  librados::Rados *rad = get_rados_handle();
-  ret = rad->pool_create(pool.name.c_str(), 0);
-  if (ret == -EEXIST)
-    ret = 0;
-  else if (ret == -ERANGE) {
-    ldout(cct, 0)
-      << __func__
-      << " ERROR: librados::Rados::pool_create returned " << cpp_strerror(-ret)
-      << " (this can be due to a pool or placement group misconfiguration, e.g., pg_num < pgp_num)"
-      << dendl;
-  }
-  if (ret < 0)
-    return ret;
-
   librados::IoCtx io_ctx;
-  ret = rad->ioctx_create(pool.name.c_str(), io_ctx);
-  if (ret < 0)
-    return ret;
-
-  ret = io_ctx.application_enable(pg_pool_t::APPLICATION_NAME_RGW, false);
-  if (ret < 0 && ret != -EOPNOTSUPP)
-    return ret;
-  return 0;
+  constexpr bool create = true;
+  return rgw_init_ioctx(get_rados_handle(), pool, io_ctx, create);
 }
 
 int RGWRados::init_bucket_index(RGWBucketInfo& bucket_info, int num_shards)
@@ -6572,6 +6593,21 @@ int RGWRados::BucketShard::init(const rgw_bucket& _bucket, int sid)
   return 0;
 }
 
+int RGWRados::BucketShard::init(const RGWBucketInfo& bucket_info, int sid)
+{
+  bucket = bucket_info.bucket;
+  shard_id = sid;
+
+  int ret = store->open_bucket_index_shard(bucket_info, index_ctx, shard_id, &bucket_obj);
+  if (ret < 0) {
+    ldout(store->ctx(), 0) << "ERROR: open_bucket_index_shard() returned ret=" << ret << dendl;
+    return ret;
+  }
+  ldout(store->ctx(), 20) << " bucket index object: " << bucket_obj << dendl;
+
+  return 0;
+}
+
 
 /* Execute @handler on last item in bucket listing for bucket specified
  * in @bucket_info. @obj_prefix and @obj_delim narrow down the listing
@@ -7013,8 +7049,14 @@ int RGWRados::Object::Write::_do_write_meta(uint64_t size, uint64_t accounted_si
   meta.canceled = false;
 
   /* update quota cache */
-  store->quota_handler->update_stats(meta.owner, obj.bucket, (orig_exists ? 0 : 1),
-                                     accounted_size, orig_size);
+  if (meta.completeMultipart){
+       store->quota_handler->update_stats(meta.owner, obj.bucket, (orig_exists ? 0 : 1),
+                                     0, orig_size);
+  }
+  else {
+    store->quota_handler->update_stats(meta.owner, obj.bucket, (orig_exists ? 0 : 1),
+                                     accounted_size, orig_size);  
+  }
   return 0;
 
 done_cancel:
@@ -7239,19 +7281,51 @@ bool RGWRados::aio_completed(void *handle)
   return c->is_safe();
 }
 
+// PutObj filter that buffers data so we don't try to compress tiny blocks.
+// libcurl reads in 16k at a time, and we need at least 64k to get a good
+// compression ratio
+class RGWPutObj_Buffer : public RGWPutObj_Filter {
+  const unsigned buffer_size;
+  bufferlist buffer;
+ public:
+  RGWPutObj_Buffer(RGWPutObjDataProcessor* next, unsigned buffer_size)
+    : RGWPutObj_Filter(next), buffer_size(buffer_size) {
+    assert(ISP2(buffer_size)); // must be power of 2
+  }
+
+  int handle_data(bufferlist& bl, off_t ofs, void **phandle, rgw_raw_obj *pobj,
+                  bool *again) override {
+    if (*again || !bl.length()) {
+      // flush buffered data
+      return RGWPutObj_Filter::handle_data(buffer, ofs, phandle, pobj, again);
+    }
+    // transform offset to the beginning of the buffer
+    ofs = ofs - buffer.length();
+    buffer.claim_append(bl);
+    if (buffer.length() < buffer_size) {
+      *again = false; // don't come back until there's more data
+      return 0;
+    }
+    const auto count = P2ALIGN(buffer.length(), buffer_size);
+    buffer.splice(0, count, &bl);
+    return RGWPutObj_Filter::handle_data(bl, ofs, phandle, pobj, again);
+  }
+};
+
 class RGWRadosPutObj : public RGWGetDataCB
 {
   CephContext* cct;
   rgw_obj obj;
   RGWPutObjDataProcessor *filter;
   boost::optional<RGWPutObj_Compress>& compressor;
+  boost::optional<RGWPutObj_Buffer> buffering;
   CompressorRef& plugin;
   RGWPutObjProcessor_Atomic *processor;
   RGWOpStateSingleOp *opstate;
   void (*progress_cb)(off_t, void *);
   void *progress_data;
   bufferlist extra_data_bl;
-  uint64_t extra_data_len;
+  uint64_t extra_data_left;
   uint64_t data_len;
   map<string, bufferlist> src_attrs;
 public:
@@ -7270,7 +7344,7 @@ public:
                        opstate(_ops),
                        progress_cb(_progress_cb),
                        progress_data(_progress_data),
-                       extra_data_len(0),
+                       extra_data_left(0),
                        data_len(0) {}
 
   int process_attrs(void) {
@@ -7290,7 +7364,9 @@ public:
     if (plugin && src_attrs.find(RGW_ATTR_CRYPT_MODE) == src_attrs.end()) {
       //do not compress if object is encrypted
       compressor = boost::in_place(cct, plugin, filter);
-      filter = &*compressor;
+      constexpr unsigned buffer_size = 512 * 1024;
+      buffering = boost::in_place(&*compressor, buffer_size);
+      filter = &*buffering;
     }
     return 0;
   }
@@ -7299,17 +7375,17 @@ public:
     if (progress_cb) {
       progress_cb(ofs, progress_data);
     }
-    if (extra_data_len) {
+    if (extra_data_left) {
       size_t extra_len = bl.length();
-      if (extra_len > extra_data_len)
-        extra_len = extra_data_len;
+      if (extra_len > extra_data_left)
+        extra_len = extra_data_left;
 
       bufferlist extra;
       bl.splice(0, extra_len, &extra);
       extra_data_bl.append(extra);
 
-      extra_data_len -= extra_len;
-      if (extra_data_len == 0) {
+      extra_data_left -= extra_len;
+      if (extra_data_left == 0) {
         int res = process_attrs();
         if (res < 0)
           return res;
@@ -7317,7 +7393,13 @@ public:
       if (bl.length() == 0) {
         return 0;
       }
+      ofs += extra_len;
     }
+    // adjust ofs based on extra_data_len, so the result is a logical offset
+    // into the object data
+    assert(uint64_t(ofs) >= extra_data_len);
+    ofs -= extra_data_len;
+
     data_len += bl.length();
     bool again = false;
 
@@ -7356,12 +7438,18 @@ public:
     return 0;
   }
 
+  int flush() {
+    bufferlist bl;
+    return put_data_and_throttle(filter, bl, 0, false);
+  }
+
   bufferlist& get_extra_data() { return extra_data_bl; }
 
   map<string, bufferlist>& get_attrs() { return src_attrs; }
 
   void set_extra_data_len(uint64_t len) override {
-    extra_data_len = len;
+    extra_data_left = len;
+    RGWGetDataCB::set_extra_data_len(len);
   }
 
   uint64_t get_data_len() {
@@ -7440,8 +7528,11 @@ int RGWRados::rewrite_obj(RGWBucketInfo& dest_bucket_info, rgw_obj& obj)
     return ret;
   }
 
-  return copy_obj_data(rctx, dest_bucket_info, read_op, obj_size - 1, obj, obj, max_chunk_size, NULL, mtime, attrset,
-                       RGW_OBJ_CATEGORY_MAIN, 0, real_time(), NULL, NULL, NULL);
+  return copy_obj_data(rctx, dest_bucket_info, read_op, obj_size - 1, obj, obj,
+                                          max_chunk_size, NULL, mtime, attrset,
+                                          RGW_OBJ_CATEGORY_MAIN, 0, real_time(),
+                                          (obj.key.instance.empty() ? NULL : &(obj.key.instance)),
+                                          NULL, NULL);
 }
 
 struct obj_time_weight {
@@ -7781,6 +7872,10 @@ int RGWRados::fetch_remote_obj(RGWObjectCtx& obj_ctx,
   if (ret < 0) {
     goto set_err_state;
   }
+  ret = cb.flush();
+  if (ret < 0) {
+    goto set_err_state;
+  }
   if (compressor && compressor->is_compressed()) {
     bufferlist tmp;
     RGWCompressionInfo cs_info;
@@ -8018,6 +8113,15 @@ int RGWRados::copy_obj(RGWObjectCtx& obj_ctx,
   if (ret < 0) {
     return ret;
   }
+  if (src_attrs.count(RGW_ATTR_CRYPT_MODE)) {
+    // Current implementation does not follow S3 spec and even
+    // may result in data corruption silently when copying
+    // multipart objects acorss pools. So reject COPY operations
+    //on encrypted objects before it is fully functional.
+    ldout(cct, 0) << "ERROR: copy op for encrypted object " << src_obj
+                  << " has not been implemented." << dendl;
+    return -ERR_NOT_IMPLEMENTED;
+  }
 
   src_attrs[RGW_ATTR_ACL] = attrs[RGW_ATTR_ACL];
   src_attrs.erase(RGW_ATTR_DELETE_AT);
@@ -8142,9 +8246,11 @@ int RGWRados::copy_obj(RGWObjectCtx& obj_ctx,
     if (tail_placement.bucket.name.empty()) {
       manifest.set_tail_placement(tail_placement.placement_rule, src_obj.bucket);
     }
+    string ref_tag;
     for (; miter != astate->manifest.obj_end(); ++miter) {
       ObjectWriteOperation op;
-      cls_refcount_get(op, tag, true);
+      ref_tag = tag + '\0';
+      cls_refcount_get(op, ref_tag, true);
       const rgw_raw_obj& loc = miter.get_location().get_raw_obj(this);
       ref.ioctx.locator_set_key(loc.loc);
 
@@ -8236,7 +8342,7 @@ int RGWRados::copy_obj_data(RGWObjectCtx& obj_ctx,
   append_rand_alpha(cct, tag, tag, 32);
 
   RGWPutObjProcessor_Atomic processor(obj_ctx,
-                                      dest_bucket_info, dest_obj.bucket, dest_obj.get_oid(),
+                                      dest_bucket_info, dest_obj.bucket, dest_obj.key.name,
                                       cct->_conf->rgw_obj_stripe_size, tag, dest_bucket_info.versioning_enabled());
   if (version_id) {
     processor.set_version_id(*version_id);
@@ -8898,19 +9004,15 @@ int RGWRados::Object::Delete::delete_obj()
   index_op.set_zones_trace(params.zones_trace);
   index_op.set_bilog_flags(params.bilog_flags);
 
-
   r = index_op.prepare(CLS_RGW_OP_DEL, &state->write_tag);
   if (r < 0)
     return r;
 
   store->remove_rgw_head_obj(op);
   r = ref.ioctx.operate(ref.oid, &op);
-  bool need_invalidate = false;
-  if (r == -ECANCELED) {
-    /* raced with another operation, we can regard it as removed */
-    need_invalidate = true;
-    r = 0;
-  }
+
+  /* raced with another operation, object state is indeterminate */
+  const bool need_invalidate = (r == -ECANCELED);
 
   int64_t poolid = ref.ioctx.get_id();
   if (r >= 0) {
@@ -9728,10 +9830,13 @@ int RGWRados::set_attrs(void *ctx, const RGWBucketInfo& bucket_info, rgw_obj& ob
       return r;
 
     bl.append(tag.c_str(), tag.size() + 1);
-
     op.setxattr(RGW_ATTR_ID_TAG,  bl);
   }
 
+
+  real_time mtime = real_clock::now();
+  struct timespec mtime_ts = real_clock::to_timespec(mtime);
+  op.mtime2(&mtime_ts);
   r = ref.ioctx.operate(ref.oid, &op);
   if (state) {
     if (r >= 0) {
@@ -9742,7 +9847,6 @@ int RGWRados::set_attrs(void *ctx, const RGWBucketInfo& bucket_info, rgw_obj& ob
       string content_type(content_type_bl.c_str(), content_type_bl.length());
       uint64_t epoch = ref.ioctx.get_last_version();
       int64_t poolid = ref.ioctx.get_id();
-      real_time mtime = real_clock::now();
       r = index_op.complete(poolid, epoch, state->size, state->accounted_size,
                             mtime, etag, content_type, &acl_bl,
                             RGW_OBJ_CATEGORY_MAIN, NULL);
@@ -10231,7 +10335,8 @@ int RGWRados::get_system_obj(RGWObjectCtx& obj_ctx, RGWRados::SystemObject::Read
                              RGWObjVersionTracker *objv_tracker, rgw_raw_obj& obj,
                              bufferlist& bl, off_t ofs, off_t end,
                              map<string, bufferlist> *attrs,
-                             rgw_cache_entry_info *cache_info)
+                             rgw_cache_entry_info *cache_info,
+                            boost::optional<obj_version>)
 {
   uint64_t len;
   ObjectReadOperation op;
@@ -10278,12 +10383,16 @@ int RGWRados::get_system_obj(RGWObjectCtx& obj_ctx, RGWRados::SystemObject::Read
   return bl.length();
 }
 
-int RGWRados::SystemObject::Read::read(int64_t ofs, int64_t end, bufferlist& bl, RGWObjVersionTracker *objv_tracker)
+int RGWRados::SystemObject::Read::read(int64_t ofs, int64_t end, bufferlist& bl,
+                                      RGWObjVersionTracker *objv_tracker,
+                                      boost::optional<obj_version> refresh_version)
 {
   RGWRados *store = source->get_store();
   rgw_raw_obj& obj = source->get_obj();
 
-  return store->get_system_obj(source->get_ctx(), state, objv_tracker, obj, bl, ofs, end, read_params.attrs, read_params.cache_info);
+  return store->get_system_obj(source->get_ctx(), state, objv_tracker, obj, bl,
+                              ofs, end, read_params.attrs,
+                              read_params.cache_info, refresh_version);
 }
 
 int RGWRados::SystemObject::Read::get_attr(const char *name, bufferlist& dest)
@@ -10799,6 +10908,8 @@ int RGWRados::olh_init_modification_impl(const RGWBucketInfo& bucket_info, RGWOb
     op.create(true);
   } else {
     op.assert_exists();
+    struct timespec mtime_ts = real_clock::to_timespec(state.mtime);
+    op.mtime2(&mtime_ts);
   }
 
   /*
@@ -11136,6 +11247,9 @@ int RGWRados::apply_olh_log(RGWObjectCtx& obj_ctx, RGWObjState& state, const RGW
   op.cmpxattr(RGW_ATTR_OLH_ID_TAG, CEPH_OSD_CMPXATTR_OP_EQ, olh_tag);
   op.cmpxattr(RGW_ATTR_OLH_VER, CEPH_OSD_CMPXATTR_OP_GT, last_ver);
 
+  struct timespec mtime_ts = real_clock::to_timespec(state.mtime);
+  op.mtime2(&mtime_ts);
+
   bool need_to_link = false;
   cls_rgw_obj_key key;
   bool delete_marker = false;
@@ -11821,13 +11935,16 @@ int RGWRados::get_bucket_instance_info(RGWObjectCtx& obj_ctx, const rgw_bucket&
 
 int RGWRados::get_bucket_instance_from_oid(RGWObjectCtx& obj_ctx, const string& oid, RGWBucketInfo& info,
                                            real_time *pmtime, map<string, bufferlist> *pattrs,
-                                           rgw_cache_entry_info *cache_info)
+                                           rgw_cache_entry_info *cache_info,
+                                          boost::optional<obj_version> refresh_version)
 {
   ldout(cct, 20) << "reading from " << get_zone_params().domain_root << ":" << oid << dendl;
 
   bufferlist epbl;
 
-  int ret = rgw_get_system_obj(this, obj_ctx, get_zone_params().domain_root, oid, epbl, &info.objv_tracker, pmtime, pattrs, cache_info);
+  int ret = rgw_get_system_obj(this, obj_ctx, get_zone_params().domain_root,
+                              oid, epbl, &info.objv_tracker, pmtime, pattrs,
+                              cache_info, refresh_version);
   if (ret < 0) {
     return ret;
   }
@@ -11850,13 +11967,16 @@ int RGWRados::get_bucket_entrypoint_info(RGWObjectCtx& obj_ctx,
                                          RGWObjVersionTracker *objv_tracker,
                                          real_time *pmtime,
                                          map<string, bufferlist> *pattrs,
-                                         rgw_cache_entry_info *cache_info)
+                                         rgw_cache_entry_info *cache_info,
+                                        boost::optional<obj_version> refresh_version)
 {
   bufferlist bl;
   string bucket_entry;
 
   rgw_make_bucket_entry_name(tenant_name, bucket_name, bucket_entry);
-  int ret = rgw_get_system_obj(this, obj_ctx, get_zone_params().domain_root, bucket_entry, bl, objv_tracker, pmtime, pattrs, cache_info);
+  int ret = rgw_get_system_obj(this, obj_ctx, get_zone_params().domain_root,
+                              bucket_entry, bl, objv_tracker, pmtime, pattrs,
+                              cache_info, refresh_version);
   if (ret < 0) {
     return ret;
   }
@@ -11909,15 +12029,27 @@ int RGWRados::convert_old_bucket_info(RGWObjectCtx& obj_ctx,
   return 0;
 }
 
-int RGWRados::get_bucket_info(RGWObjectCtx& obj_ctx,
-                              const string& tenant, const string& bucket_name, RGWBucketInfo& info,
-                              real_time *pmtime, map<string, bufferlist> *pattrs)
+int RGWRados::_get_bucket_info(RGWObjectCtx& obj_ctx,
+                               const string& tenant,
+                               const string& bucket_name,
+                               RGWBucketInfo& info,
+                               real_time *pmtime,
+                               map<string, bufferlist> *pattrs,
+                               boost::optional<obj_version> refresh_version)
 {
   bucket_info_entry e;
   string bucket_entry;
   rgw_make_bucket_entry_name(tenant, bucket_name, bucket_entry);
 
+
   if (binfo_cache->find(bucket_entry, &e)) {
+    if (refresh_version &&
+        e.info.objv_tracker.read_version.compare(&(*refresh_version))) {
+      lderr(cct) << "WARNING: The bucket info cache is inconsistent. This is "
+                 << "a failure that should be debugged. I am a nice machine, "
+                 << "so I will try to recover." << dendl;
+      binfo_cache->invalidate(bucket_entry);
+    }
     info = e.info;
     if (pattrs)
       *pattrs = e.attrs;
@@ -11930,7 +12062,9 @@ int RGWRados::get_bucket_info(RGWObjectCtx& obj_ctx,
   real_time ep_mtime;
   RGWObjVersionTracker ot;
   rgw_cache_entry_info entry_cache_info;
-  int ret = get_bucket_entrypoint_info(obj_ctx, tenant, bucket_name, entry_point, &ot, &ep_mtime, pattrs, &entry_cache_info);
+  int ret = get_bucket_entrypoint_info(obj_ctx, tenant, bucket_name,
+                                      entry_point, &ot, &ep_mtime, pattrs,
+                                      &entry_cache_info, refresh_version);
   if (ret < 0) {
     /* only init these fields */
     info.bucket.tenant = tenant;
@@ -11964,10 +12098,12 @@ int RGWRados::get_bucket_info(RGWObjectCtx& obj_ctx,
 
   rgw_cache_entry_info cache_info;
 
-  ret = get_bucket_instance_from_oid(obj_ctx, oid, e.info, &e.mtime, &e.attrs, &cache_info);
+  ret = get_bucket_instance_from_oid(obj_ctx, oid, e.info, &e.mtime, &e.attrs,
+                                    &cache_info, refresh_version);
   e.info.ep_objv = ot.read_version;
   info = e.info;
   if (ret < 0) {
+    lderr(cct) << "ERROR: get_bucket_instance_from_oid failed: " << ret << dendl;
     info.bucket.tenant = tenant;
     info.bucket.name = bucket_name;
     // XXX and why return anything in case of an error anyway?
@@ -11989,9 +12125,35 @@ int RGWRados::get_bucket_info(RGWObjectCtx& obj_ctx,
     ldout(cct, 20) << "couldn't put binfo cache entry, might have raced with data changes" << dendl;
   }
 
+  if (refresh_version &&
+      refresh_version->compare(&info.objv_tracker.read_version)) {
+    lderr(cct) << "WARNING: The OSD has the same version I have. Something may "
+               << "have gone squirrelly. An administrator may have forced a "
+               << "change; otherwise there is a problem somewhere." << dendl;
+  }
+
   return 0;
 }
 
+int RGWRados::get_bucket_info(RGWObjectCtx& obj_ctx,
+                              const string& tenant, const string& bucket_name,
+                              RGWBucketInfo& info,
+                              real_time *pmtime, map<string, bufferlist> *pattrs)
+{
+  return _get_bucket_info(obj_ctx, tenant, bucket_name, info, pmtime,
+                          pattrs, boost::none);
+}
+
+int RGWRados::try_refresh_bucket_info(RGWBucketInfo& info,
+                                      ceph::real_time *pmtime,
+                                      map<string, bufferlist> *pattrs)
+{
+  RGWObjectCtx obj_ctx(this);
+
+  return _get_bucket_info(obj_ctx, info.bucket.tenant, info.bucket.name,
+                          info, pmtime, pattrs, info.objv_tracker.read_version);
+}
+
 int RGWRados::put_bucket_entrypoint_info(const string& tenant_name, const string& bucket_name, RGWBucketEntryPoint& entry_point,
                                          bool exclusive, RGWObjVersionTracker& objv_tracker, real_time mtime,
                                          map<string, bufferlist> *pattrs)
@@ -12185,6 +12347,10 @@ int RGWRados::update_containers_stats(map<string, RGWBucketEnt>& m)
         ent.size_rounded += stats.total_size_rounded;
       }
     }
+
+    // fill in placement_rule from the bucket instance for use in swift's
+    // per-storage policy statistics
+    ent.placement_rule = std::move(bucket_info.placement_rule);
   }
 
   return m.size();
@@ -12821,8 +12987,11 @@ int RGWRados::cls_bucket_list(RGWBucketInfo& bucket_info, int shard_id, rgw_obj_
     const string& name = vcurrents[pos]->first;
     struct rgw_bucket_dir_entry& dirent = vcurrents[pos]->second;
 
-    bool force_check = force_check_filter && force_check_filter(dirent.key.name);
-    if ((!dirent.exists && !dirent.is_delete_marker()) || !dirent.pending_map.empty() || force_check) {
+    bool force_check = force_check_filter &&
+        force_check_filter(dirent.key.name);
+    if ((!dirent.exists && !dirent.is_delete_marker()) ||
+        !dirent.pending_map.empty() ||
+        force_check) {
       /* there are uncommitted ops. We need to check the current state,
        * and if the tags are old we need to do cleanup as well. */
       librados::IoCtx sub_ctx;
@@ -12916,10 +13085,7 @@ int RGWRados::cls_obj_usage_log_trim(string& oid, string& user, uint64_t start_e
     return r;
   }
 
-  ObjectWriteOperation op;
-  cls_rgw_usage_log_trim(op, user, start_epoch, end_epoch);
-
-  r = ref.ioctx.operate(ref.oid, &op);
+  r = cls_rgw_usage_log_trim(ref.ioctx, ref.oid, user, start_epoch, end_epoch);
   return r;
 }
 
@@ -13128,6 +13294,23 @@ int RGWRados::cls_user_get_header(const string& user_id, cls_user_header *header
   return 0;
 }
 
+int RGWRados::cls_user_reset_stats(const string& user_id)
+{
+  string buckets_obj_id;
+  rgw_get_buckets_obj(user_id, buckets_obj_id);
+  rgw_raw_obj obj(get_zone_params().user_uid_pool, buckets_obj_id);
+
+  rgw_rados_ref ref;
+  int r = get_raw_obj_ref(obj, &ref);
+  if (r < 0) {
+    return r;
+  }
+
+  librados::ObjectWriteOperation op;
+  ::cls_user_reset_stats(op);
+  return ref.ioctx.operate(ref.oid, &op);
+}
+
 int RGWRados::cls_user_get_header_async(const string& user_id, RGWGetUserHeader_CB *ctx)
 {
   string buckets_obj_id;
@@ -13751,14 +13934,14 @@ uint64_t RGWRados::next_bucket_id()
   return ++max_bucket_id;
 }
 
-RGWRados *RGWStoreManager::init_storage_provider(CephContext *cct, bool use_gc_thread, bool use_lc_thread, bool quota_threads, bool run_sync_thread, bool run_reshard_thread)
+RGWRados *RGWStoreManager::init_storage_provider(CephContext *cct, bool use_gc_thread, bool use_lc_thread,
+                                                bool quota_threads, bool run_sync_thread, bool run_reshard_thread, bool use_cache)
 {
-  int use_cache = cct->_conf->rgw_cache_enabled;
   RGWRados *store = NULL;
   if (!use_cache) {
     store = new RGWRados;
   } else {
-    store = new RGWCache<RGWRados>; 
+    store = new RGWCache<RGWRados>;
   }
 
   if (store->initialize(cct, use_gc_thread, use_lc_thread, quota_threads, run_sync_thread, run_reshard_thread) < 0) {
@@ -13915,3 +14098,71 @@ int rgw_compression_info_from_attrset(map<string, bufferlist>& attrs, bool& need
   }
 }
 
+bool RGWRados::call(std::string command, cmdmap_t& cmdmap, std::string format,
+                    bufferlist& out)
+{
+  if (command == "cache list") {
+    boost::optional<std::string> filter;
+    auto i = cmdmap.find("filter");
+    if (i != cmdmap.cend()) {
+      filter = boost::get<std::string>(i->second);
+    }
+    std::unique_ptr<Formatter> f(ceph::Formatter::create(format, "table"));
+    if (f) {
+      f->open_array_section("cache_entries");
+      call_list(filter, f.get());
+      f->close_section();
+      f->flush(out);
+      return true;
+    } else {
+      out.append("Unable to create Formatter.\n");
+      return false;
+    }
+  } else if (command == "cache inspect") {
+    std::unique_ptr<Formatter> f(ceph::Formatter::create(format, "json-pretty"));
+    if (f) {
+      const auto& target = boost::get<std::string>(cmdmap["target"]);
+      if (call_inspect(target, f.get())) {
+        f->flush(out);
+        return true;
+      } else {
+        out.append(string("Unable to find entry ") + target + string(".\n"));
+        return false;
+      }
+    } else {
+      out.append("Unable to create Formatter.\n");
+      return false;
+    }
+  } else if (command == "cache erase") {
+    const auto& target = boost::get<std::string>(cmdmap["target"]);
+    if (call_erase(target)) {
+      return true;
+    } else {
+      out.append(string("Unable to find entry ") + target + string(".\n"));
+      return false;
+    }
+  } else if (command == "cache zap") {
+    call_zap();
+    return true;
+  }
+  return false;
+}
+
+void RGWRados::call_list(const boost::optional<std::string>&,
+                         ceph::Formatter*)
+{
+  return;
+}
+
+bool RGWRados::call_inspect(const std::string&, Formatter*)
+{
+  return false;
+}
+
+bool RGWRados::call_erase(const std::string&) {
+  return false;
+}
+
+void RGWRados::call_zap() {
+  return;
+}