X-Git-Url: https://gerrit.opnfv.org/gerrit/gitweb?a=blobdiff_plain;f=src%2Fceph%2Fsrc%2Frgw%2Frgw_data_sync.h;fp=src%2Fceph%2Fsrc%2Frgw%2Frgw_data_sync.h;h=934f3f322c43af28f365a0c27131fca6022ee900;hb=812ff6ca9fcd3e629e49d4328905f33eee8ca3f5;hp=0000000000000000000000000000000000000000;hpb=15280273faafb77777eab341909a3f495cf248d9;p=stor4nfv.git

diff --git a/src/ceph/src/rgw/rgw_data_sync.h b/src/ceph/src/rgw/rgw_data_sync.h
new file mode 100644
index 0000000..934f3f3
--- /dev/null
+++ b/src/ceph/src/rgw/rgw_data_sync.h
@@ -0,0 +1,538 @@
+#ifndef CEPH_RGW_DATA_SYNC_H
+#define CEPH_RGW_DATA_SYNC_H
+
+#include "rgw_coroutine.h"
+#include "rgw_http_client.h"
+#include "rgw_bucket.h"
+
+#include "rgw_sync_module.h"
+
+#include "common/RWLock.h"
+#include "common/ceph_json.h"
+
+
+struct rgw_datalog_info {
+  uint32_t num_shards;
+
+  rgw_datalog_info() : num_shards(0) {}
+
+  void decode_json(JSONObj *obj);
+};
+
+struct rgw_data_sync_info {
+  enum SyncState {
+    StateInit = 0,
+    StateBuildingFullSyncMaps = 1,
+    StateSync = 2,
+  };
+
+  uint16_t state;
+  uint32_t num_shards;
+
+  uint64_t instance_id{0};
+
+  void encode(bufferlist& bl) const {
+    ENCODE_START(2, 1, bl);
+    ::encode(state, bl);
+    ::encode(num_shards, bl);
+    ::encode(instance_id, bl);
+    ENCODE_FINISH(bl);
+  }
+
+  void decode(bufferlist::iterator& bl) {
+     DECODE_START(2, bl);
+     ::decode(state, bl);
+     ::decode(num_shards, bl);
+     if (struct_v >= 2) {
+       ::decode(instance_id, bl);
+     }
+     DECODE_FINISH(bl);
+  }
+
+  void dump(Formatter *f) const {
+    string s;
+    switch ((SyncState)state) {
+      case StateInit:
+	s = "init";
+	break;
+      case StateBuildingFullSyncMaps:
+	s = "building-full-sync-maps";
+	break;
+      case StateSync:
+	s = "sync";
+	break;
+      default:
+	s = "unknown";
+	break;
+    }
+    encode_json("status", s, f);
+    encode_json("num_shards", num_shards, f);
+    encode_json("instance_id", instance_id, f);
+  }
+  void decode_json(JSONObj *obj) {
+    std::string s;
+    JSONDecoder::decode_json("status", s, obj);
+    if (s == "building-full-sync-maps") {
+      state = StateBuildingFullSyncMaps;
+    } else if (s == "sync") {
+      state = StateSync;
+    } else {
+      state = StateInit;
+    }
+    JSONDecoder::decode_json("num_shards", num_shards, obj);
+    JSONDecoder::decode_json("instance_id", num_shards, obj);
+  }
+
+  rgw_data_sync_info() : state((int)StateInit), num_shards(0) {}
+};
+WRITE_CLASS_ENCODER(rgw_data_sync_info)
+
+struct rgw_data_sync_marker {
+  enum SyncState {
+    FullSync = 0,
+    IncrementalSync = 1,
+  };
+  uint16_t state;
+  string marker;
+  string next_step_marker;
+  uint64_t total_entries;
+  uint64_t pos;
+  real_time timestamp;
+
+  rgw_data_sync_marker() : state(FullSync), total_entries(0), pos(0) {}
+
+  void encode(bufferlist& bl) const {
+    ENCODE_START(1, 1, bl);
+    ::encode(state, bl);
+    ::encode(marker, bl);
+    ::encode(next_step_marker, bl);
+    ::encode(total_entries, bl);
+    ::encode(pos, bl);
+    ::encode(timestamp, bl);
+    ENCODE_FINISH(bl);
+  }
+
+  void decode(bufferlist::iterator& bl) {
+     DECODE_START(1, bl);
+    ::decode(state, bl);
+    ::decode(marker, bl);
+    ::decode(next_step_marker, bl);
+    ::decode(total_entries, bl);
+    ::decode(pos, bl);
+    ::decode(timestamp, bl);
+     DECODE_FINISH(bl);
+  }
+
+  void dump(Formatter *f) const {
+    encode_json("state", (int)state, f);
+    encode_json("marker", marker, f);
+    encode_json("next_step_marker", next_step_marker, f);
+    encode_json("total_entries", total_entries, f);
+    encode_json("pos", pos, f);
+    encode_json("timestamp", utime_t(timestamp), f);
+  }
+  void decode_json(JSONObj *obj) {
+    int s;
+    JSONDecoder::decode_json("state", s, obj);
+    state = s;
+    JSONDecoder::decode_json("marker", marker, obj);
+    JSONDecoder::decode_json("next_step_marker", next_step_marker, obj);
+    JSONDecoder::decode_json("total_entries", total_entries, obj);
+    JSONDecoder::decode_json("pos", pos, obj);
+    utime_t t;
+    JSONDecoder::decode_json("timestamp", t, obj);
+    timestamp = t.to_real_time();
+  }
+};
+WRITE_CLASS_ENCODER(rgw_data_sync_marker)
+
+struct rgw_data_sync_status {
+  rgw_data_sync_info sync_info;
+  map<uint32_t, rgw_data_sync_marker> sync_markers;
+
+  rgw_data_sync_status() {}
+
+  void encode(bufferlist& bl) const {
+    ENCODE_START(1, 1, bl);
+    ::encode(sync_info, bl);
+    /* sync markers are encoded separately */
+    ENCODE_FINISH(bl);
+  }
+
+  void decode(bufferlist::iterator& bl) {
+     DECODE_START(1, bl);
+    ::decode(sync_info, bl);
+    /* sync markers are decoded separately */
+     DECODE_FINISH(bl);
+  }
+
+  void dump(Formatter *f) const {
+    encode_json("info", sync_info, f);
+    encode_json("markers", sync_markers, f);
+  }
+  void decode_json(JSONObj *obj) {
+    JSONDecoder::decode_json("info", sync_info, obj);
+    JSONDecoder::decode_json("markers", sync_markers, obj);
+  }
+};
+WRITE_CLASS_ENCODER(rgw_data_sync_status)
+
+struct rgw_datalog_entry {
+  string key;
+  ceph::real_time timestamp;
+
+  void decode_json(JSONObj *obj);
+};
+
+struct rgw_datalog_shard_data {
+  string marker;
+  bool truncated;
+  vector<rgw_datalog_entry> entries;
+
+  void decode_json(JSONObj *obj);
+};
+
+class RGWAsyncRadosProcessor;
+class RGWDataSyncControlCR;
+
+struct rgw_bucket_entry_owner {
+  string id;
+  string display_name;
+
+  rgw_bucket_entry_owner() {}
+  rgw_bucket_entry_owner(const string& _id, const string& _display_name) : id(_id), display_name(_display_name) {}
+
+  void decode_json(JSONObj *obj);
+};
+
+class RGWSyncErrorLogger;
+
+struct RGWDataSyncEnv {
+  CephContext *cct;
+  RGWRados *store;
+  RGWRESTConn *conn;
+  RGWAsyncRadosProcessor *async_rados;
+  RGWHTTPManager *http_manager;
+  RGWSyncErrorLogger *error_logger;
+  string source_zone;
+  RGWSyncModuleInstanceRef sync_module;
+
+  RGWDataSyncEnv() : cct(NULL), store(NULL), conn(NULL), async_rados(NULL), http_manager(NULL), error_logger(NULL), sync_module(NULL) {}
+
+  void init(CephContext *_cct, RGWRados *_store, RGWRESTConn *_conn,
+            RGWAsyncRadosProcessor *_async_rados, RGWHTTPManager *_http_manager,
+            RGWSyncErrorLogger *_error_logger, const string& _source_zone,
+            RGWSyncModuleInstanceRef& _sync_module) {
+    cct = _cct;
+    store = _store;
+    conn = _conn;
+    async_rados = _async_rados;
+    http_manager = _http_manager;
+    error_logger = _error_logger;
+    source_zone = _source_zone;
+    sync_module = _sync_module;
+  }
+
+  string shard_obj_name(int shard_id);
+  string status_oid();
+};
+
+class RGWRemoteDataLog : public RGWCoroutinesManager {
+  RGWRados *store;
+  RGWAsyncRadosProcessor *async_rados;
+  RGWHTTPManager http_manager;
+
+  RGWDataSyncEnv sync_env;
+
+  RWLock lock;
+  RGWDataSyncControlCR *data_sync_cr;
+
+  bool initialized;
+
+public:
+  RGWRemoteDataLog(RGWRados *_store, RGWAsyncRadosProcessor *async_rados)
+    : RGWCoroutinesManager(_store->ctx(), _store->get_cr_registry()),
+      store(_store), async_rados(async_rados),
+      http_manager(store->ctx(), completion_mgr),
+      lock("RGWRemoteDataLog::lock"), data_sync_cr(NULL),
+      initialized(false) {}
+  int init(const string& _source_zone, RGWRESTConn *_conn, RGWSyncErrorLogger *_error_logger, RGWSyncModuleInstanceRef& module);
+  void finish();
+
+  int read_log_info(rgw_datalog_info *log_info);
+  int read_source_log_shards_info(map<int, RGWDataChangesLogInfo> *shards_info);
+  int read_source_log_shards_next(map<int, string> shard_markers, map<int, rgw_datalog_shard_data> *result);
+  int read_sync_status(rgw_data_sync_status *sync_status);
+  int init_sync_status(int num_shards);
+  int run_sync(int num_shards);
+
+  void wakeup(int shard_id, set<string>& keys);
+};
+
+class RGWDataSyncStatusManager {
+  RGWRados *store;
+  rgw_rados_ref ref;
+
+  string source_zone;
+  RGWRESTConn *conn;
+  RGWSyncErrorLogger *error_logger;
+  RGWSyncModuleInstanceRef sync_module;
+
+  RGWRemoteDataLog source_log;
+
+  string source_status_oid;
+  string source_shard_status_oid_prefix;
+
+  map<int, rgw_raw_obj> shard_objs;
+
+  int num_shards;
+
+public:
+  RGWDataSyncStatusManager(RGWRados *_store, RGWAsyncRadosProcessor *async_rados,
+                           const string& _source_zone)
+    : store(_store), source_zone(_source_zone), conn(NULL), error_logger(NULL),
+      sync_module(nullptr),
+      source_log(store, async_rados), num_shards(0) {}
+  ~RGWDataSyncStatusManager() {
+    finalize();
+  }
+  int init();
+  void finalize();
+
+  static string shard_obj_name(const string& source_zone, int shard_id);
+  static string sync_status_oid(const string& source_zone);
+
+  int read_sync_status(rgw_data_sync_status *sync_status) {
+    return source_log.read_sync_status(sync_status);
+  }
+  int init_sync_status() { return source_log.init_sync_status(num_shards); }
+
+  int read_log_info(rgw_datalog_info *log_info) {
+    return source_log.read_log_info(log_info);
+  }
+  int read_source_log_shards_info(map<int, RGWDataChangesLogInfo> *shards_info) {
+    return source_log.read_source_log_shards_info(shards_info);
+  }
+  int read_source_log_shards_next(map<int, string> shard_markers, map<int, rgw_datalog_shard_data> *result) {
+    return source_log.read_source_log_shards_next(shard_markers, result);
+  }
+
+  int run() { return source_log.run_sync(num_shards); }
+
+  void wakeup(int shard_id, set<string>& keys) { return source_log.wakeup(shard_id, keys); }
+  void stop() {
+    source_log.finish();
+  }
+};
+
+class RGWBucketSyncStatusManager;
+class RGWBucketSyncCR;
+
+struct rgw_bucket_shard_full_sync_marker {
+  rgw_obj_key position;
+  uint64_t count;
+
+  rgw_bucket_shard_full_sync_marker() : count(0) {}
+
+  void encode_attr(map<string, bufferlist>& attrs);
+
+  void encode(bufferlist& bl) const {
+    ENCODE_START(1, 1, bl);
+    ::encode(position, bl);
+    ::encode(count, bl);
+    ENCODE_FINISH(bl);
+  }
+
+  void decode(bufferlist::iterator& bl) {
+     DECODE_START(1, bl);
+    ::decode(position, bl);
+    ::decode(count, bl);
+     DECODE_FINISH(bl);
+  }
+
+  void dump(Formatter *f) const {
+    encode_json("position", position, f);
+    encode_json("count", count, f);
+  }
+};
+WRITE_CLASS_ENCODER(rgw_bucket_shard_full_sync_marker)
+
+struct rgw_bucket_shard_inc_sync_marker {
+  string position;
+
+  rgw_bucket_shard_inc_sync_marker() {}
+
+  void encode_attr(map<string, bufferlist>& attrs);
+
+  void encode(bufferlist& bl) const {
+    ENCODE_START(1, 1, bl);
+    ::encode(position, bl);
+    ENCODE_FINISH(bl);
+  }
+
+  void decode(bufferlist::iterator& bl) {
+     DECODE_START(1, bl);
+    ::decode(position, bl);
+     DECODE_FINISH(bl);
+  }
+
+  void dump(Formatter *f) const {
+    encode_json("position", position, f);
+  }
+
+  bool operator<(const rgw_bucket_shard_inc_sync_marker& m) const {
+    return (position < m.position);
+  }
+};
+WRITE_CLASS_ENCODER(rgw_bucket_shard_inc_sync_marker)
+
+struct rgw_bucket_shard_sync_info {
+  enum SyncState {
+    StateInit = 0,
+    StateFullSync = 1,
+    StateIncrementalSync = 2,
+  };
+
+  uint16_t state;
+  rgw_bucket_shard_full_sync_marker full_marker;
+  rgw_bucket_shard_inc_sync_marker inc_marker;
+
+  void decode_from_attrs(CephContext *cct, map<string, bufferlist>& attrs);
+  void encode_all_attrs(map<string, bufferlist>& attrs);
+  void encode_state_attr(map<string, bufferlist>& attrs);
+
+  void encode(bufferlist& bl) const {
+    ENCODE_START(1, 1, bl);
+    ::encode(state, bl);
+    ::encode(full_marker, bl);
+    ::encode(inc_marker, bl);
+    ENCODE_FINISH(bl);
+  }
+
+  void decode(bufferlist::iterator& bl) {
+     DECODE_START(1, bl);
+     ::decode(state, bl);
+     ::decode(full_marker, bl);
+     ::decode(inc_marker, bl);
+     DECODE_FINISH(bl);
+  }
+
+  void dump(Formatter *f) const {
+    string s;
+    switch ((SyncState)state) {
+      case StateInit:
+	s = "init";
+	break;
+      case StateFullSync:
+	s = "full-sync";
+	break;
+      case StateIncrementalSync:
+	s = "incremental-sync";
+	break;
+      default:
+	s = "unknown";
+	break;
+    }
+    encode_json("status", s, f);
+    encode_json("full_marker", full_marker, f);
+    encode_json("inc_marker", inc_marker, f);
+  }
+
+  rgw_bucket_shard_sync_info() : state((int)StateInit) {}
+
+};
+WRITE_CLASS_ENCODER(rgw_bucket_shard_sync_info)
+
+
+class RGWRemoteBucketLog : public RGWCoroutinesManager {
+  RGWRados *store;
+  RGWRESTConn *conn{nullptr};
+  string source_zone;
+  rgw_bucket_shard bs;
+
+  RGWBucketSyncStatusManager *status_manager;
+  RGWAsyncRadosProcessor *async_rados;
+  RGWHTTPManager *http_manager;
+
+  RGWDataSyncEnv sync_env;
+  rgw_bucket_shard_sync_info init_status;
+
+  RGWBucketSyncCR *sync_cr{nullptr};
+
+public:
+  RGWRemoteBucketLog(RGWRados *_store, RGWBucketSyncStatusManager *_sm,
+                     RGWAsyncRadosProcessor *_async_rados, RGWHTTPManager *_http_manager) : RGWCoroutinesManager(_store->ctx(), _store->get_cr_registry()), store(_store),
+                                       status_manager(_sm), async_rados(_async_rados), http_manager(_http_manager) {}
+
+  int init(const string& _source_zone, RGWRESTConn *_conn,
+           const rgw_bucket& bucket, int shard_id,
+           RGWSyncErrorLogger *_error_logger,
+           RGWSyncModuleInstanceRef& _sync_module);
+  void finish();
+
+  RGWCoroutine *read_sync_status_cr(rgw_bucket_shard_sync_info *sync_status);
+  RGWCoroutine *init_sync_status_cr();
+  RGWCoroutine *run_sync_cr();
+
+  void wakeup();
+};
+
+class RGWBucketSyncStatusManager {
+  RGWRados *store;
+
+  RGWCoroutinesManager cr_mgr;
+
+  RGWHTTPManager http_manager;
+
+  string source_zone;
+  RGWRESTConn *conn;
+  RGWSyncErrorLogger *error_logger;
+  RGWSyncModuleInstanceRef sync_module;
+
+  rgw_bucket bucket;
+
+  map<int, RGWRemoteBucketLog *> source_logs;
+
+  string source_status_oid;
+  string source_shard_status_oid_prefix;
+
+  map<int, rgw_bucket_shard_sync_info> sync_status;
+  rgw_raw_obj status_obj;
+
+  int num_shards;
+
+public:
+  RGWBucketSyncStatusManager(RGWRados *_store, const string& _source_zone,
+                             const rgw_bucket& bucket) : store(_store),
+                                                                                     cr_mgr(_store->ctx(), _store->get_cr_registry()),
+                                                                                     http_manager(store->ctx(), cr_mgr.get_completion_mgr()),
+                                                                                     source_zone(_source_zone),
+                                                                                     conn(NULL), error_logger(NULL),
+                                                                                     bucket(bucket),
+                                                                                     num_shards(0) {}
+  ~RGWBucketSyncStatusManager();
+
+  int init();
+
+  map<int, rgw_bucket_shard_sync_info>& get_sync_status() { return sync_status; }
+  int init_sync_status();
+
+  static string status_oid(const string& source_zone, const rgw_bucket_shard& bs);
+
+  int read_sync_status();
+  int run();
+};
+
+class RGWDefaultSyncModule : public RGWSyncModule {
+public:
+  RGWDefaultSyncModule() {}
+  bool supports_data_export() override { return true; }
+  int create_instance(CephContext *cct, map<string, string, ltstr_nocase>& config, RGWSyncModuleInstanceRef *instance) override;
+};
+
+// DataLogTrimCR factory function
+extern RGWCoroutine* create_data_log_trim_cr(RGWRados *store,
+                                             RGWHTTPManager *http,
+                                             int num_shards, utime_t interval);
+
+#endif