/Users/deen/code/yugabyte-db/src/yb/master/flush_manager.h
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1 | | // Copyright (c) YugaByte, Inc. |
2 | | // |
3 | | // Licensed under the Apache License, Version 2.0 (the "License"); you may not use this file except |
4 | | // in compliance with the License. You may obtain a copy of the License at |
5 | | // |
6 | | // http://www.apache.org/licenses/LICENSE-2.0 |
7 | | // |
8 | | // Unless required by applicable law or agreed to in writing, software distributed under the License |
9 | | // is distributed on an "AS IS" BASIS, WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express |
10 | | // or implied. See the License for the specific language governing permissions and limitations |
11 | | // under the License. |
12 | | // |
13 | | #ifndef YB_MASTER_FLUSH_MANAGER_H |
14 | | #define YB_MASTER_FLUSH_MANAGER_H |
15 | | |
16 | | #include <set> |
17 | | #include <shared_mutex> |
18 | | #include <type_traits> |
19 | | #include <unordered_set> |
20 | | #include <utility> |
21 | | |
22 | | #include <gflags/gflags_declare.h> |
23 | | |
24 | | #include "yb/gutil/integral_types.h" |
25 | | #include "yb/gutil/ref_counted.h" |
26 | | |
27 | | #include "yb/master/master_admin.fwd.h" |
28 | | #include "yb/master/master_fwd.h" |
29 | | |
30 | | #include "yb/util/status_fwd.h" |
31 | | #include "yb/util/enums.h" |
32 | | #include "yb/util/locks.h" |
33 | | |
34 | | namespace yb { |
35 | | namespace master { |
36 | | |
37 | | class Master; |
38 | | class CatalogManager; |
39 | | class TableInfo; |
40 | | |
41 | | // Handle Flush-related operations. |
42 | | class FlushManager { |
43 | | public: |
44 | | explicit FlushManager(Master* master, CatalogManagerIf* catalog_manager) |
45 | | : master_(DCHECK_NOTNULL(master)), |
46 | 5.45k | catalog_manager_(DCHECK_NOTNULL(catalog_manager)) {} |
47 | | |
48 | | // API to start a table flushing. |
49 | | CHECKED_STATUS FlushTables(const FlushTablesRequestPB* req, |
50 | | FlushTablesResponsePB* resp); |
51 | | |
52 | | CHECKED_STATUS IsFlushTablesDone(const IsFlushTablesDoneRequestPB* req, |
53 | | IsFlushTablesDoneResponsePB* resp); |
54 | | |
55 | | void HandleFlushTabletsResponse(const FlushRequestId& flush_id, |
56 | | const TabletServerId& ts_uuid, |
57 | | const Status& status); |
58 | | |
59 | | private: |
60 | | // Start the background task to send the FlushTablets RPC to the Tablet Server. |
61 | | void SendFlushTabletsRequest(const TabletServerId& ts_uuid, |
62 | | const scoped_refptr<TableInfo>& table, |
63 | | const std::vector<TabletId>& tablet_ids, |
64 | | const FlushRequestId& flush_id, |
65 | | bool is_compaction); |
66 | | |
67 | | void DeleteCompleteFlushRequests(); |
68 | | |
69 | | Master* master_; |
70 | | CatalogManagerIf* catalog_manager_; |
71 | | |
72 | | // Lock protecting the various in memory storage structures. |
73 | | typedef rw_spinlock LockType; |
74 | | mutable LockType lock_; |
75 | | |
76 | | typedef std::unordered_set<TabletServerId> TSIdSet; |
77 | | struct TSFlushingInfo { |
78 | 7 | void clear() { |
79 | 7 | ts_flushing_.clear(); |
80 | 7 | ts_succeed_.clear(); |
81 | 7 | ts_failed_.clear(); |
82 | 7 | } |
83 | | |
84 | | TSIdSet ts_flushing_; |
85 | | TSIdSet ts_succeed_; |
86 | | TSIdSet ts_failed_; |
87 | | }; |
88 | | |
89 | | // Map of flushing requests: flush_request-id -> current per TS info. |
90 | | typedef std::unordered_map<FlushRequestId, TSFlushingInfo> FlushRequestMap; |
91 | | FlushRequestMap flush_requests_; |
92 | | |
93 | | DISALLOW_COPY_AND_ASSIGN(FlushManager); |
94 | | }; |
95 | | |
96 | | } // namespace master |
97 | | } // namespace yb |
98 | | #endif // YB_MASTER_FLUSH_MANAGER_H |