+++ /dev/null
-// -*- 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) 2013 Inktank, Inc
- *
- * 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 "include/utime.h"
-#include "common/lru_map.h"
-#include "common/RefCountedObj.h"
-#include "common/Thread.h"
-#include "common/Mutex.h"
-#include "common/RWLock.h"
-
-#include "rgw_common.h"
-#include "rgw_rados.h"
-#include "rgw_quota.h"
-#include "rgw_bucket.h"
-#include "rgw_user.h"
-
-#include <atomic>
-
-#define dout_context g_ceph_context
-#define dout_subsys ceph_subsys_rgw
-
-
-struct RGWQuotaCacheStats {
- RGWStorageStats stats;
- utime_t expiration;
- utime_t async_refresh_time;
-};
-
-template<class T>
-class RGWQuotaCache {
-protected:
- RGWRados *store;
- lru_map<T, RGWQuotaCacheStats> stats_map;
- RefCountedWaitObject *async_refcount;
-
- class StatsAsyncTestSet : public lru_map<T, RGWQuotaCacheStats>::UpdateContext {
- int objs_delta;
- uint64_t added_bytes;
- uint64_t removed_bytes;
- public:
- StatsAsyncTestSet() : objs_delta(0), added_bytes(0), removed_bytes(0) {}
- bool update(RGWQuotaCacheStats *entry) override {
- if (entry->async_refresh_time.sec() == 0)
- return false;
-
- entry->async_refresh_time = utime_t(0, 0);
-
- return true;
- }
- };
-
- virtual int fetch_stats_from_storage(const rgw_user& user, const rgw_bucket& bucket, RGWStorageStats& stats) = 0;
-
- virtual bool map_find(const rgw_user& user, const rgw_bucket& bucket, RGWQuotaCacheStats& qs) = 0;
-
- virtual bool map_find_and_update(const rgw_user& user, const rgw_bucket& bucket, typename lru_map<T, RGWQuotaCacheStats>::UpdateContext *ctx) = 0;
- virtual void map_add(const rgw_user& user, const rgw_bucket& bucket, RGWQuotaCacheStats& qs) = 0;
-
- virtual void data_modified(const rgw_user& user, rgw_bucket& bucket) {}
-public:
- RGWQuotaCache(RGWRados *_store, int size) : store(_store), stats_map(size) {
- async_refcount = new RefCountedWaitObject;
- }
- virtual ~RGWQuotaCache() {
- async_refcount->put_wait(); /* wait for all pending async requests to complete */
- }
-
- int get_stats(const rgw_user& user, const rgw_bucket& bucket, RGWStorageStats& stats, RGWQuotaInfo& quota);
- void adjust_stats(const rgw_user& user, rgw_bucket& bucket, int objs_delta, uint64_t added_bytes, uint64_t removed_bytes);
-
- virtual bool can_use_cached_stats(RGWQuotaInfo& quota, RGWStorageStats& stats);
-
- void set_stats(const rgw_user& user, const rgw_bucket& bucket, RGWQuotaCacheStats& qs, RGWStorageStats& stats);
- int async_refresh(const rgw_user& user, const rgw_bucket& bucket, RGWQuotaCacheStats& qs);
- void async_refresh_response(const rgw_user& user, rgw_bucket& bucket, RGWStorageStats& stats);
- void async_refresh_fail(const rgw_user& user, rgw_bucket& bucket);
-
- class AsyncRefreshHandler {
- protected:
- RGWRados *store;
- RGWQuotaCache<T> *cache;
- public:
- AsyncRefreshHandler(RGWRados *_store, RGWQuotaCache<T> *_cache) : store(_store), cache(_cache) {}
- virtual ~AsyncRefreshHandler() {}
-
- virtual int init_fetch() = 0;
- virtual void drop_reference() = 0;
- };
-
- virtual AsyncRefreshHandler *allocate_refresh_handler(const rgw_user& user, const rgw_bucket& bucket) = 0;
-};
-
-template<class T>
-bool RGWQuotaCache<T>::can_use_cached_stats(RGWQuotaInfo& quota, RGWStorageStats& cached_stats)
-{
- if (quota.max_size >= 0) {
- if (quota.max_size_soft_threshold < 0) {
- quota.max_size_soft_threshold = quota.max_size * store->ctx()->_conf->rgw_bucket_quota_soft_threshold;
- }
-
- if (cached_stats.size_rounded >= (uint64_t)quota.max_size_soft_threshold) {
- ldout(store->ctx(), 20) << "quota: can't use cached stats, exceeded soft threshold (size): "
- << cached_stats.size_rounded << " >= " << quota.max_size_soft_threshold << dendl;
- return false;
- }
- }
-
- if (quota.max_objects >= 0) {
- if (quota.max_objs_soft_threshold < 0) {
- quota.max_objs_soft_threshold = quota.max_objects * store->ctx()->_conf->rgw_bucket_quota_soft_threshold;
- }
-
- if (cached_stats.num_objects >= (uint64_t)quota.max_objs_soft_threshold) {
- ldout(store->ctx(), 20) << "quota: can't use cached stats, exceeded soft threshold (num objs): "
- << cached_stats.num_objects << " >= " << quota.max_objs_soft_threshold << dendl;
- return false;
- }
- }
-
- return true;
-}
-
-template<class T>
-int RGWQuotaCache<T>::async_refresh(const rgw_user& user, const rgw_bucket& bucket, RGWQuotaCacheStats& qs)
-{
- /* protect against multiple updates */
- StatsAsyncTestSet test_update;
- if (!map_find_and_update(user, bucket, &test_update)) {
- /* most likely we just raced with another update */
- return 0;
- }
-
- async_refcount->get();
-
-
- AsyncRefreshHandler *handler = allocate_refresh_handler(user, bucket);
-
- int ret = handler->init_fetch();
- if (ret < 0) {
- async_refcount->put();
- handler->drop_reference();
- return ret;
- }
-
- return 0;
-}
-
-template<class T>
-void RGWQuotaCache<T>::async_refresh_fail(const rgw_user& user, rgw_bucket& bucket)
-{
- ldout(store->ctx(), 20) << "async stats refresh response for bucket=" << bucket << dendl;
-
- async_refcount->put();
-}
-
-template<class T>
-void RGWQuotaCache<T>::async_refresh_response(const rgw_user& user, rgw_bucket& bucket, RGWStorageStats& stats)
-{
- ldout(store->ctx(), 20) << "async stats refresh response for bucket=" << bucket << dendl;
-
- RGWQuotaCacheStats qs;
-
- map_find(user, bucket, qs);
-
- set_stats(user, bucket, qs, stats);
-
- async_refcount->put();
-}
-
-template<class T>
-void RGWQuotaCache<T>::set_stats(const rgw_user& user, const rgw_bucket& bucket, RGWQuotaCacheStats& qs, RGWStorageStats& stats)
-{
- qs.stats = stats;
- qs.expiration = ceph_clock_now();
- qs.async_refresh_time = qs.expiration;
- qs.expiration += store->ctx()->_conf->rgw_bucket_quota_ttl;
- qs.async_refresh_time += store->ctx()->_conf->rgw_bucket_quota_ttl / 2;
-
- map_add(user, bucket, qs);
-}
-
-template<class T>
-int RGWQuotaCache<T>::get_stats(const rgw_user& user, const rgw_bucket& bucket, RGWStorageStats& stats, RGWQuotaInfo& quota) {
- RGWQuotaCacheStats qs;
- utime_t now = ceph_clock_now();
- if (map_find(user, bucket, qs)) {
- if (qs.async_refresh_time.sec() > 0 && now >= qs.async_refresh_time) {
- int r = async_refresh(user, bucket, qs);
- if (r < 0) {
- ldout(store->ctx(), 0) << "ERROR: quota async refresh returned ret=" << r << dendl;
-
- /* continue processing, might be a transient error, async refresh is just optimization */
- }
- }
-
- if (can_use_cached_stats(quota, qs.stats) && qs.expiration >
- ceph_clock_now()) {
- stats = qs.stats;
- return 0;
- }
- }
-
- int ret = fetch_stats_from_storage(user, bucket, stats);
- if (ret < 0 && ret != -ENOENT)
- return ret;
-
- set_stats(user, bucket, qs, stats);
-
- return 0;
-}
-
-
-template<class T>
-class RGWQuotaStatsUpdate : public lru_map<T, RGWQuotaCacheStats>::UpdateContext {
- const int objs_delta;
- const uint64_t added_bytes;
- const uint64_t removed_bytes;
-public:
- RGWQuotaStatsUpdate(const int objs_delta,
- const uint64_t added_bytes,
- const uint64_t removed_bytes)
- : objs_delta(objs_delta),
- added_bytes(added_bytes),
- removed_bytes(removed_bytes) {
- }
-
- bool update(RGWQuotaCacheStats * const entry) override {
- const uint64_t rounded_added = rgw_rounded_objsize(added_bytes);
- const uint64_t rounded_removed = rgw_rounded_objsize(removed_bytes);
-
- if (((int64_t)(entry->stats.size + added_bytes - removed_bytes)) >= 0) {
- entry->stats.size += added_bytes - removed_bytes;
- } else {
- entry->stats.size = 0;
- }
-
- if (((int64_t)(entry->stats.size_rounded + rounded_added - rounded_removed)) >= 0) {
- entry->stats.size_rounded += rounded_added - rounded_removed;
- } else {
- entry->stats.size_rounded = 0;
- }
-
- if (((int64_t)(entry->stats.num_objects + objs_delta)) >= 0) {
- entry->stats.num_objects += objs_delta;
- } else {
- entry->stats.num_objects = 0;
- }
-
- return true;
- }
-};
-
-
-template<class T>
-void RGWQuotaCache<T>::adjust_stats(const rgw_user& user, rgw_bucket& bucket, int objs_delta,
- uint64_t added_bytes, uint64_t removed_bytes)
-{
- RGWQuotaStatsUpdate<T> update(objs_delta, added_bytes, removed_bytes);
- map_find_and_update(user, bucket, &update);
-
- data_modified(user, bucket);
-}
-
-class BucketAsyncRefreshHandler : public RGWQuotaCache<rgw_bucket>::AsyncRefreshHandler,
- public RGWGetBucketStats_CB {
- rgw_user user;
-public:
- BucketAsyncRefreshHandler(RGWRados *_store, RGWQuotaCache<rgw_bucket> *_cache,
- const rgw_user& _user, const rgw_bucket& _bucket) :
- RGWQuotaCache<rgw_bucket>::AsyncRefreshHandler(_store, _cache),
- RGWGetBucketStats_CB(_bucket), user(_user) {}
-
- void drop_reference() override { put(); }
- void handle_response(int r) override;
- int init_fetch() override;
-};
-
-int BucketAsyncRefreshHandler::init_fetch()
-{
- RGWBucketInfo bucket_info;
-
- RGWObjectCtx obj_ctx(store);
-
- int r = store->get_bucket_instance_info(obj_ctx, bucket, bucket_info, NULL, NULL);
- if (r < 0) {
- ldout(store->ctx(), 0) << "could not get bucket info for bucket=" << bucket << " r=" << r << dendl;
- return r;
- }
-
- ldout(store->ctx(), 20) << "initiating async quota refresh for bucket=" << bucket << dendl;
-
- r = store->get_bucket_stats_async(bucket_info, RGW_NO_SHARD, this);
- if (r < 0) {
- ldout(store->ctx(), 0) << "could not get bucket info for bucket=" << bucket.name << dendl;
-
- /* get_bucket_stats_async() dropped our reference already */
- return r;
- }
-
- return 0;
-}
-
-void BucketAsyncRefreshHandler::handle_response(const int r)
-{
- if (r < 0) {
- ldout(store->ctx(), 20) << "AsyncRefreshHandler::handle_response() r=" << r << dendl;
- cache->async_refresh_fail(user, bucket);
- return;
- }
-
- RGWStorageStats bs;
-
- for (const auto& pair : *stats) {
- const RGWStorageStats& s = pair.second;
-
- bs.size += s.size;
- bs.size_rounded += s.size_rounded;
- bs.num_objects += s.num_objects;
- }
-
- cache->async_refresh_response(user, bucket, bs);
-}
-
-class RGWBucketStatsCache : public RGWQuotaCache<rgw_bucket> {
-protected:
- bool map_find(const rgw_user& user, const rgw_bucket& bucket, RGWQuotaCacheStats& qs) override {
- return stats_map.find(bucket, qs);
- }
-
- bool map_find_and_update(const rgw_user& user, const rgw_bucket& bucket, lru_map<rgw_bucket, RGWQuotaCacheStats>::UpdateContext *ctx) override {
- return stats_map.find_and_update(bucket, NULL, ctx);
- }
-
- void map_add(const rgw_user& user, const rgw_bucket& bucket, RGWQuotaCacheStats& qs) override {
- stats_map.add(bucket, qs);
- }
-
- int fetch_stats_from_storage(const rgw_user& user, const rgw_bucket& bucket, RGWStorageStats& stats) override;
-
-public:
- explicit RGWBucketStatsCache(RGWRados *_store) : RGWQuotaCache<rgw_bucket>(_store, _store->ctx()->_conf->rgw_bucket_quota_cache_size) {
- }
-
- AsyncRefreshHandler *allocate_refresh_handler(const rgw_user& user, const rgw_bucket& bucket) override {
- return new BucketAsyncRefreshHandler(store, this, user, bucket);
- }
-};
-
-int RGWBucketStatsCache::fetch_stats_from_storage(const rgw_user& user, const rgw_bucket& bucket, RGWStorageStats& stats)
-{
- RGWBucketInfo bucket_info;
-
- RGWObjectCtx obj_ctx(store);
-
- int r = store->get_bucket_instance_info(obj_ctx, bucket, bucket_info, NULL, NULL);
- if (r < 0) {
- ldout(store->ctx(), 0) << "could not get bucket info for bucket=" << bucket << " r=" << r << dendl;
- return r;
- }
-
- string bucket_ver;
- string master_ver;
-
- map<RGWObjCategory, RGWStorageStats> bucket_stats;
- r = store->get_bucket_stats(bucket_info, RGW_NO_SHARD, &bucket_ver,
- &master_ver, bucket_stats, nullptr);
- if (r < 0) {
- ldout(store->ctx(), 0) << "could not get bucket stats for bucket="
- << bucket.name << dendl;
- return r;
- }
-
- stats = RGWStorageStats();
-
- for (const auto& pair : bucket_stats) {
- const RGWStorageStats& s = pair.second;
-
- stats.size += s.size;
- stats.size_rounded += s.size_rounded;
- stats.num_objects += s.num_objects;
- }
-
- return 0;
-}
-
-class UserAsyncRefreshHandler : public RGWQuotaCache<rgw_user>::AsyncRefreshHandler,
- public RGWGetUserStats_CB {
- rgw_bucket bucket;
-public:
- UserAsyncRefreshHandler(RGWRados *_store, RGWQuotaCache<rgw_user> *_cache,
- const rgw_user& _user, const rgw_bucket& _bucket) :
- RGWQuotaCache<rgw_user>::AsyncRefreshHandler(_store, _cache),
- RGWGetUserStats_CB(_user),
- bucket(_bucket) {}
-
- void drop_reference() override { put(); }
- int init_fetch() override;
- void handle_response(int r) override;
-};
-
-int UserAsyncRefreshHandler::init_fetch()
-{
- ldout(store->ctx(), 20) << "initiating async quota refresh for user=" << user << dendl;
- int r = store->get_user_stats_async(user, this);
- if (r < 0) {
- ldout(store->ctx(), 0) << "could not get bucket info for user=" << user << dendl;
-
- /* get_bucket_stats_async() dropped our reference already */
- return r;
- }
-
- return 0;
-}
-
-void UserAsyncRefreshHandler::handle_response(int r)
-{
- if (r < 0) {
- ldout(store->ctx(), 20) << "AsyncRefreshHandler::handle_response() r=" << r << dendl;
- cache->async_refresh_fail(user, bucket);
- return;
- }
-
- cache->async_refresh_response(user, bucket, stats);
-}
-
-class RGWUserStatsCache : public RGWQuotaCache<rgw_user> {
- std::atomic<bool> down_flag = { false };
- RWLock rwlock;
- map<rgw_bucket, rgw_user> modified_buckets;
-
- /* thread, sync recent modified buckets info */
- class BucketsSyncThread : public Thread {
- CephContext *cct;
- RGWUserStatsCache *stats;
-
- Mutex lock;
- Cond cond;
- public:
-
- BucketsSyncThread(CephContext *_cct, RGWUserStatsCache *_s) : cct(_cct), stats(_s), lock("RGWUserStatsCache::BucketsSyncThread") {}
-
- void *entry() override {
- ldout(cct, 20) << "BucketsSyncThread: start" << dendl;
- do {
- map<rgw_bucket, rgw_user> buckets;
-
- stats->swap_modified_buckets(buckets);
-
- for (map<rgw_bucket, rgw_user>::iterator iter = buckets.begin(); iter != buckets.end(); ++iter) {
- rgw_bucket bucket = iter->first;
- rgw_user& user = iter->second;
- ldout(cct, 20) << "BucketsSyncThread: sync user=" << user << " bucket=" << bucket << dendl;
- int r = stats->sync_bucket(user, bucket);
- if (r < 0) {
- ldout(cct, 0) << "WARNING: sync_bucket() returned r=" << r << dendl;
- }
- }
-
- if (stats->going_down())
- break;
-
- lock.Lock();
- cond.WaitInterval(lock, utime_t(cct->_conf->rgw_user_quota_bucket_sync_interval, 0));
- lock.Unlock();
- } while (!stats->going_down());
- ldout(cct, 20) << "BucketsSyncThread: done" << dendl;
-
- return NULL;
- }
-
- void stop() {
- Mutex::Locker l(lock);
- cond.Signal();
- }
- };
-
- /*
- * thread, full sync all users stats periodically
- *
- * only sync non idle users or ones that never got synced before, this is needed so that
- * users that didn't have quota turned on before (or existed before the user objclass
- * tracked stats) need to get their backend stats up to date.
- */
- class UserSyncThread : public Thread {
- CephContext *cct;
- RGWUserStatsCache *stats;
-
- Mutex lock;
- Cond cond;
- public:
-
- UserSyncThread(CephContext *_cct, RGWUserStatsCache *_s) : cct(_cct), stats(_s), lock("RGWUserStatsCache::UserSyncThread") {}
-
- void *entry() override {
- ldout(cct, 20) << "UserSyncThread: start" << dendl;
- do {
- int ret = stats->sync_all_users();
- if (ret < 0) {
- ldout(cct, 5) << "ERROR: sync_all_users() returned ret=" << ret << dendl;
- }
-
- if (stats->going_down())
- break;
-
- lock.Lock();
- cond.WaitInterval(lock, utime_t(cct->_conf->rgw_user_quota_sync_interval, 0));
- lock.Unlock();
- } while (!stats->going_down());
- ldout(cct, 20) << "UserSyncThread: done" << dendl;
-
- return NULL;
- }
-
- void stop() {
- Mutex::Locker l(lock);
- cond.Signal();
- }
- };
-
- BucketsSyncThread *buckets_sync_thread;
- UserSyncThread *user_sync_thread;
-protected:
- bool map_find(const rgw_user& user,const rgw_bucket& bucket, RGWQuotaCacheStats& qs) override {
- return stats_map.find(user, qs);
- }
-
- bool map_find_and_update(const rgw_user& user, const rgw_bucket& bucket, lru_map<rgw_user, RGWQuotaCacheStats>::UpdateContext *ctx) override {
- return stats_map.find_and_update(user, NULL, ctx);
- }
-
- void map_add(const rgw_user& user, const rgw_bucket& bucket, RGWQuotaCacheStats& qs) override {
- stats_map.add(user, qs);
- }
-
- int fetch_stats_from_storage(const rgw_user& user, const rgw_bucket& bucket, RGWStorageStats& stats) override;
- int sync_bucket(const rgw_user& rgw_user, rgw_bucket& bucket);
- int sync_user(const rgw_user& user);
- int sync_all_users();
-
- void data_modified(const rgw_user& user, rgw_bucket& bucket) override;
-
- void swap_modified_buckets(map<rgw_bucket, rgw_user>& out) {
- rwlock.get_write();
- modified_buckets.swap(out);
- rwlock.unlock();
- }
-
- template<class T> /* easier doing it as a template, Thread doesn't have ->stop() */
- void stop_thread(T **pthr) {
- T *thread = *pthr;
- if (!thread)
- return;
-
- thread->stop();
- thread->join();
- delete thread;
- *pthr = NULL;
- }
-
-public:
- RGWUserStatsCache(RGWRados *_store, bool quota_threads) : RGWQuotaCache<rgw_user>(_store, _store->ctx()->_conf->rgw_bucket_quota_cache_size),
- rwlock("RGWUserStatsCache::rwlock") {
- if (quota_threads) {
- buckets_sync_thread = new BucketsSyncThread(store->ctx(), this);
- buckets_sync_thread->create("rgw_buck_st_syn");
- user_sync_thread = new UserSyncThread(store->ctx(), this);
- user_sync_thread->create("rgw_user_st_syn");
- } else {
- buckets_sync_thread = NULL;
- user_sync_thread = NULL;
- }
- }
- ~RGWUserStatsCache() override {
- stop();
- }
-
- AsyncRefreshHandler *allocate_refresh_handler(const rgw_user& user, const rgw_bucket& bucket) override {
- return new UserAsyncRefreshHandler(store, this, user, bucket);
- }
-
- bool can_use_cached_stats(RGWQuotaInfo& quota, RGWStorageStats& stats) override {
- /* in the user case, the cached stats may contain a better estimation of the totals, as
- * the backend is only periodically getting updated.
- */
- return true;
- }
-
- bool going_down() {
- return down_flag;
- }
-
- void stop() {
- down_flag = true;
- rwlock.get_write();
- stop_thread(&buckets_sync_thread);
- rwlock.unlock();
- stop_thread(&user_sync_thread);
- }
-};
-
-int RGWUserStatsCache::fetch_stats_from_storage(const rgw_user& user, const rgw_bucket& bucket, RGWStorageStats& stats)
-{
- int r = store->get_user_stats(user, stats);
- if (r < 0) {
- ldout(store->ctx(), 0) << "could not get user stats for user=" << user << dendl;
- return r;
- }
-
- return 0;
-}
-
-int RGWUserStatsCache::sync_bucket(const rgw_user& user, rgw_bucket& bucket)
-{
- RGWBucketInfo bucket_info;
-
- RGWObjectCtx obj_ctx(store);
-
- int r = store->get_bucket_instance_info(obj_ctx, bucket, bucket_info, NULL, NULL);
- if (r < 0) {
- ldout(store->ctx(), 0) << "could not get bucket info for bucket=" << bucket << " r=" << r << dendl;
- return r;
- }
-
- r = rgw_bucket_sync_user_stats(store, user, bucket_info);
- if (r < 0) {
- ldout(store->ctx(), 0) << "ERROR: rgw_bucket_sync_user_stats() for user=" << user << ", bucket=" << bucket << " returned " << r << dendl;
- return r;
- }
-
- return 0;
-}
-
-int RGWUserStatsCache::sync_user(const rgw_user& user)
-{
- cls_user_header header;
- string user_str = user.to_str();
- int ret = store->cls_user_get_header(user_str, &header);
- if (ret < 0) {
- ldout(store->ctx(), 5) << "ERROR: can't read user header: ret=" << ret << dendl;
- return ret;
- }
-
- if (!store->ctx()->_conf->rgw_user_quota_sync_idle_users &&
- header.last_stats_update < header.last_stats_sync) {
- ldout(store->ctx(), 20) << "user is idle, not doing a full sync (user=" << user << ")" << dendl;
- return 0;
- }
-
- real_time when_need_full_sync = header.last_stats_sync;
- when_need_full_sync += make_timespan(store->ctx()->_conf->rgw_user_quota_sync_wait_time);
-
- // check if enough time passed since last full sync
- /* FIXME: missing check? */
-
- ret = rgw_user_sync_all_stats(store, user);
- if (ret < 0) {
- ldout(store->ctx(), 0) << "ERROR: failed user stats sync, ret=" << ret << dendl;
- return ret;
- }
-
- return 0;
-}
-
-int RGWUserStatsCache::sync_all_users()
-{
- string key = "user";
- void *handle;
-
- int ret = store->meta_mgr->list_keys_init(key, &handle);
- if (ret < 0) {
- ldout(store->ctx(), 10) << "ERROR: can't get key: ret=" << ret << dendl;
- return ret;
- }
-
- bool truncated;
- int max = 1000;
-
- do {
- list<string> keys;
- ret = store->meta_mgr->list_keys_next(handle, max, keys, &truncated);
- if (ret < 0) {
- ldout(store->ctx(), 0) << "ERROR: lists_keys_next(): ret=" << ret << dendl;
- goto done;
- }
- for (list<string>::iterator iter = keys.begin();
- iter != keys.end() && !going_down();
- ++iter) {
- rgw_user user(*iter);
- ldout(store->ctx(), 20) << "RGWUserStatsCache: sync user=" << user << dendl;
- int ret = sync_user(user);
- if (ret < 0) {
- ldout(store->ctx(), 5) << "ERROR: sync_user() failed, user=" << user << " ret=" << ret << dendl;
-
- /* continuing to next user */
- continue;
- }
- }
- } while (truncated);
-
- ret = 0;
-done:
- store->meta_mgr->list_keys_complete(handle);
- return ret;
-}
-
-void RGWUserStatsCache::data_modified(const rgw_user& user, rgw_bucket& bucket)
-{
- /* racy, but it's ok */
- rwlock.get_read();
- bool need_update = modified_buckets.find(bucket) == modified_buckets.end();
- rwlock.unlock();
-
- if (need_update) {
- rwlock.get_write();
- modified_buckets[bucket] = user;
- rwlock.unlock();
- }
-}
-
-
-class RGWQuotaInfoApplier {
- /* NOTE: no non-static field allowed as instances are supposed to live in
- * the static memory only. */
-protected:
- RGWQuotaInfoApplier() = default;
-
-public:
- virtual ~RGWQuotaInfoApplier() {}
-
- virtual bool is_size_exceeded(const char * const entity,
- const RGWQuotaInfo& qinfo,
- const RGWStorageStats& stats,
- const uint64_t size) const = 0;
-
- virtual bool is_num_objs_exceeded(const char * const entity,
- const RGWQuotaInfo& qinfo,
- const RGWStorageStats& stats,
- const uint64_t num_objs) const = 0;
-
- static const RGWQuotaInfoApplier& get_instance(const RGWQuotaInfo& qinfo);
-};
-
-class RGWQuotaInfoDefApplier : public RGWQuotaInfoApplier {
-public:
- bool is_size_exceeded(const char * const entity,
- const RGWQuotaInfo& qinfo,
- const RGWStorageStats& stats,
- const uint64_t size) const override;
-
- bool is_num_objs_exceeded(const char * const entity,
- const RGWQuotaInfo& qinfo,
- const RGWStorageStats& stats,
- const uint64_t num_objs) const override;
-};
-
-class RGWQuotaInfoRawApplier : public RGWQuotaInfoApplier {
-public:
- bool is_size_exceeded(const char * const entity,
- const RGWQuotaInfo& qinfo,
- const RGWStorageStats& stats,
- const uint64_t size) const override;
-
- bool is_num_objs_exceeded(const char * const entity,
- const RGWQuotaInfo& qinfo,
- const RGWStorageStats& stats,
- const uint64_t num_objs) const override;
-};
-
-
-bool RGWQuotaInfoDefApplier::is_size_exceeded(const char * const entity,
- const RGWQuotaInfo& qinfo,
- const RGWStorageStats& stats,
- const uint64_t size) const
-{
- if (qinfo.max_size < 0) {
- /* The limit is not enabled. */
- return false;
- }
-
- const uint64_t cur_size = stats.size_rounded;
- const uint64_t new_size = rgw_rounded_objsize(size);
-
- if (cur_size + new_size > static_cast<uint64_t>(qinfo.max_size)) {
- dout(10) << "quota exceeded: stats.size_rounded=" << stats.size_rounded
- << " size=" << new_size << " "
- << entity << "_quota.max_size=" << qinfo.max_size << dendl;
- return true;
- }
-
- return false;
-}
-
-bool RGWQuotaInfoDefApplier::is_num_objs_exceeded(const char * const entity,
- const RGWQuotaInfo& qinfo,
- const RGWStorageStats& stats,
- const uint64_t num_objs) const
-{
- if (qinfo.max_objects < 0) {
- /* The limit is not enabled. */
- return false;
- }
-
- if (stats.num_objects + num_objs > static_cast<uint64_t>(qinfo.max_objects)) {
- dout(10) << "quota exceeded: stats.num_objects=" << stats.num_objects
- << " " << entity << "_quota.max_objects=" << qinfo.max_objects
- << dendl;
- return true;
- }
-
- return false;
-}
-
-bool RGWQuotaInfoRawApplier::is_size_exceeded(const char * const entity,
- const RGWQuotaInfo& qinfo,
- const RGWStorageStats& stats,
- const uint64_t size) const
-{
- if (qinfo.max_size < 0) {
- /* The limit is not enabled. */
- return false;
- }
-
- const uint64_t cur_size = stats.size;
-
- if (cur_size + size > static_cast<uint64_t>(qinfo.max_size)) {
- dout(10) << "quota exceeded: stats.size=" << stats.size
- << " size=" << size << " "
- << entity << "_quota.max_size=" << qinfo.max_size << dendl;
- return true;
- }
-
- return false;
-}
-
-bool RGWQuotaInfoRawApplier::is_num_objs_exceeded(const char * const entity,
- const RGWQuotaInfo& qinfo,
- const RGWStorageStats& stats,
- const uint64_t num_objs) const
-{
- if (qinfo.max_objects < 0) {
- /* The limit is not enabled. */
- return false;
- }
-
- if (stats.num_objects + num_objs > static_cast<uint64_t>(qinfo.max_objects)) {
- dout(10) << "quota exceeded: stats.num_objects=" << stats.num_objects
- << " " << entity << "_quota.max_objects=" << qinfo.max_objects
- << dendl;
- return true;
- }
-
- return false;
-}
-
-const RGWQuotaInfoApplier& RGWQuotaInfoApplier::get_instance(
- const RGWQuotaInfo& qinfo)
-{
- static RGWQuotaInfoDefApplier default_qapplier;
- static RGWQuotaInfoRawApplier raw_qapplier;
-
- if (qinfo.check_on_raw) {
- return raw_qapplier;
- } else {
- return default_qapplier;
- }
-}
-
-
-class RGWQuotaHandlerImpl : public RGWQuotaHandler {
- RGWRados *store;
- RGWBucketStatsCache bucket_stats_cache;
- RGWUserStatsCache user_stats_cache;
-
- int check_quota(const char * const entity,
- const RGWQuotaInfo& quota,
- const RGWStorageStats& stats,
- const uint64_t num_objs,
- const uint64_t size) {
- if (!quota.enabled) {
- return 0;
- }
-
- const auto& quota_applier = RGWQuotaInfoApplier::get_instance(quota);
-
- ldout(store->ctx(), 20) << entity
- << " quota: max_objects=" << quota.max_objects
- << " max_size=" << quota.max_size << dendl;
-
-
- if (quota_applier.is_num_objs_exceeded(entity, quota, stats, num_objs)) {
- return -ERR_QUOTA_EXCEEDED;
- }
-
- if (quota_applier.is_size_exceeded(entity, quota, stats, size)) {
- return -ERR_QUOTA_EXCEEDED;
- }
-
- ldout(store->ctx(), 20) << entity << " quota OK:"
- << " stats.num_objects=" << stats.num_objects
- << " stats.size=" << stats.size << dendl;
- return 0;
- }
-public:
- RGWQuotaHandlerImpl(RGWRados *_store, bool quota_threads) : store(_store),
- bucket_stats_cache(_store),
- user_stats_cache(_store, quota_threads) {}
-
- int check_quota(const rgw_user& user,
- rgw_bucket& bucket,
- RGWQuotaInfo& user_quota,
- RGWQuotaInfo& bucket_quota,
- uint64_t num_objs,
- uint64_t size) override {
-
- if (!bucket_quota.enabled && !user_quota.enabled) {
- return 0;
- }
-
- /*
- * we need to fetch bucket stats if the user quota is enabled, because
- * the whole system relies on us periodically updating the user's bucket
- * stats in the user's header, this happens in get_stats() if we actually
- * fetch that info and not rely on cached data
- */
-
- if (bucket_quota.enabled) {
- RGWStorageStats bucket_stats;
- int ret = bucket_stats_cache.get_stats(user, bucket, bucket_stats,
- bucket_quota);
- if (ret < 0) {
- return ret;
- }
- ret = check_quota("bucket", bucket_quota, bucket_stats, num_objs, size);
- if (ret < 0) {
- return ret;
- }
- }
-
- if (user_quota.enabled) {
- RGWStorageStats user_stats;
- int ret = user_stats_cache.get_stats(user, bucket, user_stats, user_quota);
- if (ret < 0) {
- return ret;
- }
- ret = check_quota("user", user_quota, user_stats, num_objs, size);
- if (ret < 0) {
- return ret;
- }
- }
- return 0;
- }
-
- void update_stats(const rgw_user& user, rgw_bucket& bucket, int obj_delta, uint64_t added_bytes, uint64_t removed_bytes) override {
- bucket_stats_cache.adjust_stats(user, bucket, obj_delta, added_bytes, removed_bytes);
- user_stats_cache.adjust_stats(user, bucket, obj_delta, added_bytes, removed_bytes);
- }
-
- int check_bucket_shards(uint64_t max_objs_per_shard, uint64_t num_shards,
- const rgw_user& user, const rgw_bucket& bucket, RGWQuotaInfo& bucket_quota,
- uint64_t num_objs, bool& need_resharding, uint32_t *suggested_num_shards)
- {
- RGWStorageStats bucket_stats;
- int ret = bucket_stats_cache.get_stats(user, bucket, bucket_stats,
- bucket_quota);
- if (ret < 0) {
- return ret;
- }
-
- if (bucket_stats.num_objects + num_objs > num_shards * max_objs_per_shard) {
- ldout(store->ctx(), 0) << __func__ << ": resharding needed: stats.num_objects=" << bucket_stats.num_objects
- << " shard max_objects=" << max_objs_per_shard * num_shards << dendl;
- need_resharding = true;
- if (suggested_num_shards) {
- *suggested_num_shards = (bucket_stats.num_objects + num_objs) * 2 / max_objs_per_shard;
- }
- } else {
- need_resharding = false;
- }
-
- return 0;
- }
-
-};
-
-
-RGWQuotaHandler *RGWQuotaHandler::generate_handler(RGWRados *store, bool quota_threads)
-{
- return new RGWQuotaHandlerImpl(store, quota_threads);
-}
-
-void RGWQuotaHandler::free_handler(RGWQuotaHandler *handler)
-{
- delete handler;
-}
-
-
Code Review / stor4nfv.git / blobdiff