MB-19982: Don't hold connsLock for duration of dcp stats
[ep-engine.git] / configuration.json
1 {
2     "params": {
3         "allow_data_loss_during_shutdown": {
4             "default": "false",
5             "dynamic": false,
6             "type": "bool"
7         },
8         "alog_block_size": {
9             "default": "4096",
10             "descr": "Logging block size.",
11             "dynamic": false,
12             "type": "size_t"
13         },
14         "alog_path": {
15             "default": "",
16             "descr": "Path to the access log.",
17             "dynamic": false,
18             "type": "std::string"
19         },
20         "access_scanner_enabled": {
21             "default": "true",
22             "descr": "True if access scanner task is enabled",
23             "type": "bool"
24         },
25         "alog_sleep_time": {
26             "default": "1440",
27             "descr": "Number of minutes between each sweep for the access log",
28             "type": "size_t",
29             "validator": {
30                 "range": {
31                     "max": 4320,
32                     "min": 1
33                 }
34             }
35         },
36         "alog_task_time": {
37             "default": "10",
38             "descr": "Hour in GMT time when access scanner task is scheduled to run",
39             "type": "size_t",
40             "validator": {
41                 "range": {
42                     "max": 23,
43                     "min": 0
44                 }
45             }
46         },
47         "backend": {
48             "default": "couchdb",
49             "dynamic": false,
50             "type": "std::string",
51             "validator": {
52                 "enum": [
53                     "couchdb"
54                 ]
55             }
56         },
57         "backfill_mem_threshold": {
58             "default": "96",
59             "desr": "Percentage of memory that backfill task is allowed to consume",
60             "type": "size_t",
61             "validator": {
62                 "range": {
63                     "max": 100,
64                     "min": 0
65                 }
66             }
67         },
68         "bg_fetch_delay": {
69             "default": "0",
70             "type": "size_t",
71             "validator": {
72                 "range": {
73                     "max": 900,
74                     "min": 0
75                 }
76             }
77         },
78         "compaction_exp_mem_threshold": {
79             "default": "85",
80             "desr": "Memory usage threshold after which compaction will not queue expired items for deletion",
81             "type": "size_t",
82             "validator": {
83                 "range": {
84                     "max": 100,
85                     "min": 0
86                 }
87             }
88         },
89         "chk_max_items": {
90             "default": "500",
91             "type": "size_t"
92         },
93         "chk_period": {
94             "default": "5",
95             "type": "size_t"
96         },
97         "chk_remover_stime": {
98             "default": "5",
99             "type": "size_t"
100         },
101         "compaction_write_queue_cap": {
102             "default": "10000",
103             "desr" : "Disk write queue threshold after which compaction tasks will be made to snooze, if there are already pending compaction tasks",
104             "type" : "size_t"
105         },
106         "config_file": {
107             "default": "",
108             "dynamic": false,
109             "type": "std::string"
110         },
111         "conflict_resolution_type": {
112             "default": "seqno",
113             "dynamic": false,
114             "type": "std::string",
115             "validator": {
116                 "enum": [
117                     "seqno"
118                 ]
119             }
120         },
121         "couch_bucket": {
122             "default": "default",
123             "dynamic": false,
124             "type": "std::string"
125         },
126         "data_traffic_enabled": {
127             "default": "true",
128             "descr": "True if we want to enable data traffic after warmup is complete",
129             "type": "bool"
130         },
131         "dbname": {
132             "default": "/tmp/test",
133             "descr": "Path to on-disk storage.",
134             "dynamic": false,
135             "type": "std::string"
136         },
137         "enable_chk_merge": {
138             "default": "false",
139             "descr": "True if merging closed checkpoints is enabled",
140             "type": "bool"
141         },
142         "exp_pager_stime": {
143             "default": "3600",
144             "type": "size_t"
145         },
146         "failpartialwarmup": {
147             "default": "true",
148             "type": "bool"
149         },
150         "flushall_enabled": {
151             "default": "false",
152             "descr": "True if memcached flush API is enabled",
153             "type": "bool"
154         },
155         "getl_default_timeout": {
156             "default": "15",
157             "descr": "The default timeout for a getl lock in (s)",
158             "type": "size_t"
159         },
160         "getl_max_timeout": {
161             "default": "30",
162             "descr": "The maximum timeout for a getl lock in (s)",
163             "type": "size_t"
164         },
165         "ht_locks": {
166             "default": "47",
167             "type": "size_t"
168         },
169         "ht_size": {
170             "default": "0",
171             "type": "size_t"
172         },
173         "initfile": {
174             "default": "",
175             "type": "std::string"
176         },
177         "item_eviction_policy": {
178             "default": "value_only",
179             "descr": "Item eviction policy on cache, which is used by the item pager",
180             "type": "std::string",
181             "validator": {
182                 "enum": [
183                     "value_only",
184                     "full_eviction"
185                 ]
186             }
187         },
188         "item_num_based_new_chk": {
189             "default": "true",
190             "descr": "True if the number of items in the current checkpoint plays a role in a new checkpoint creation",
191             "type": "bool"
192         },
193         "keep_closed_chks": {
194             "default": "false",
195             "descr": "True if we want to keep the closed checkpoints for each vbucket unless the memory usage is above high water mark",
196             "type": "bool"
197         },
198         "max_checkpoints": {
199             "default": "2",
200             "type": "size_t"
201         },
202         "max_failover_entries": {
203             "default": "25",
204             "descr": "maximum number of failover log entries",
205             "type": "size_t"
206         },
207         "max_item_size": {
208             "default": "(20 * 1024 * 1024)",
209             "descr": "Maximum number of bytes allowed for an item",
210             "type": "size_t"
211         },
212         "max_size": {
213             "default": "0",
214             "type": "size_t"
215         },
216         "max_vbuckets": {
217             "default": "1024",
218             "descr": "Maximum number of vbuckets expected",
219             "dynamic": false,
220             "type": "size_t"
221         },
222         "max_threads": {
223             "default": "0",
224             "descr": "Maximum number of threads in global pool",
225             "dynamic": false,
226             "type": "size_t"
227         },
228         "max_num_shards": {
229             "default": "4",
230             "descr": "Maximum number of shards",
231             "dynamic": false,
232             "type": "size_t"
233         },
234         "max_num_workers": {
235             "default": "4",
236             "descr": "Bucket Priority relative to other buckets",
237             "dynamic": false,
238             "type": "size_t",
239             "validator": {
240                 "range": {
241                     "max": 8,
242                     "min": 1
243                 }
244             }
245         },
246         "max_num_readers": {
247             "default": "0",
248             "descr": "Throttle max number of reader threads",
249             "dynamic": false,
250             "type": "size_t",
251             "validator": {
252                 "range": {
253                     "max": 512,
254                     "min": 0
255                 }
256             }
257         },
258         "max_num_writers": {
259             "default": "0",
260             "descr": "Throttle max number of writer threads",
261             "dynamic": false,
262             "type": "size_t",
263             "validator": {
264                 "range": {
265                     "max": 512,
266                     "min": 0
267                 }
268             }
269         },
270         "max_num_auxio": {
271             "default": "0",
272             "descr": "Throttle max number of aux io threads",
273             "dynamic": false,
274             "type": "size_t",
275             "validator": {
276                 "range": {
277                     "max": 512,
278                     "min": 0
279                 }
280             }
281         },
282         "max_num_nonio": {
283             "default": "0",
284             "descr": "Throttle max number of non io threads",
285             "dynamic": false,
286             "type": "size_t",
287             "validator": {
288                 "range": {
289                     "max": 512,
290                     "min": 0
291                 }
292             }
293         },
294         "mem_high_wat": {
295             "default": "max",
296             "type": "size_t"
297         },
298         "mem_low_wat": {
299             "default": "max",
300             "type": "size_t"
301         },
302         "mutation_mem_threshold": {
303             "default": "93",
304             "desr": "Percentage of memory that can be used before mutations return tmpOOMs",
305             "type": "size_t",
306             "validator" : {
307                 "range" : {
308                     "max": 100,
309                     "min": 0
310                 }
311             }
312         },
313         "pager_active_vb_pcnt": {
314             "default": "40",
315             "descr": "Active vbuckets paging percentage",
316             "type": "size_t",
317             "validator": {
318                 "range": {
319                     "max": 50,
320                     "min": 0
321                 }
322             }
323         },
324         "postInitfile": {
325             "default": "",
326             "type": "std::string"
327         },
328         "tap_ack_grace_period": {
329             "default": "300",
330             "type": "size_t"
331         },
332         "tap_ack_initial_sequence_number": {
333             "default": "1",
334             "type": "size_t"
335         },
336         "tap_ack_interval": {
337             "default": "1000",
338             "type": "size_t"
339         },
340         "tap_ack_window_size": {
341             "default": "10",
342             "type": "size_t"
343         },
344         "tap_backfill_resident": {
345             "default": "0.9",
346             "type": "float"
347         },
348         "tap_backlog_limit": {
349             "default": "5000",
350             "type": "size_t"
351         },
352         "tap_backoff_period": {
353             "default": "5.0",
354             "type": "float"
355         },
356         "tap_bg_max_pending": {
357             "default": "500",
358             "type": "size_t"
359         },
360         "tap_keepalive": {
361             "default": "0",
362             "type": "size_t"
363         },
364         "tap_noop_interval": {
365             "default": "200",
366             "descr": "Number of seconds between a noop is sent on an idle connection",
367             "type": "size_t"
368         },
369         "tap_requeue_sleep_time": {
370             "default": "0.1",
371             "type": "float"
372         },
373         "tap_throttle_cap_pcnt": {
374             "default": "10",
375             "descr": "Percentage of total items in write queue at which we throttle tap input",
376             "type": "size_t",
377             "validator": {
378                 "range": {
379                     "max": 100,
380                     "min": 0
381                 }
382             }
383         },
384         "tap_throttle_queue_cap": {
385             "default": "-1",
386             "descr": "Max size of a write queue to throttle incoming tap input.",
387             "type": "ssize_t",
388             "validator": {
389                 "range": {
390                     "max": 100000000,
391                     "min": -1
392                 }
393             }
394         },
395         "tap_throttle_threshold": {
396             "default": "99",
397             "descr": "Percentage of max mem at which we begin NAKing tap input.",
398             "type": "size_t",
399             "validator": {
400                 "range": {
401                     "max": 100,
402                     "min": 0
403                 }
404             }
405         },
406         "uuid": {
407             "default": "",
408             "descr": "The UUID for the bucket",
409             "dynamic" : false,
410             "type": "std::string"
411         },
412         "dcp_conn_buffer_size": {
413             "default": "10485760",
414             "descr": "Size in bytes of an dcp consumer connection buffer",
415             "dynamic": false,
416             "type": "size_t"
417         },
418         "dcp_enable_flow_control": {
419             "default": "true",
420             "descr": "Whether or not dcp connections should use flow control",
421             "dynamic": false,
422             "type": "bool"
423         },
424         "dcp_enable_noop": {
425             "default": "true",
426             "descr": "Whether or not dcp connections should use no-ops",
427             "dynamic": false,
428             "type": "bool"
429         },
430         "dcp_noop_interval": {
431             "default": "180",
432             "descr": "Number of seconds between a noop",
433             "type": "size_t"
434         },
435         "dcp_max_unacked_bytes": {
436             "default": "524288",
437             "descr": "Amount of processed bytes before an ack is required",
438             "dynamic": false,
439             "type": "size_t"
440         },
441         "dcp_producer_snapshot_marker_yield_limit": {
442             "default": "10",
443             "descr": "The number of snapshots before ActiveStreamCheckpointProcessorTask::run yields.",
444             "type": "size_t"
445         },
446         "vb0": {
447             "default": "false",
448             "type": "bool"
449         },
450         "waitforwarmup": {
451             "default": "false",
452             "type": "bool"
453         },
454         "warmup": {
455             "default": "true",
456             "type": "bool"
457         },
458         "warmup_batch_size": {
459             "default": "1000",
460             "descr": "The size of each batch loaded during warmup.",
461             "dynamic": false,
462             "type": "size_t",
463             "validator": {
464                 "range": {
465                     "max": 10000,
466                     "min": 1
467                 }
468             }
469         },
470         "warmup_min_memory_threshold": {
471             "default": "100",
472             "descr": "Percentage of max mem warmed up before we enable traffic.",
473             "type": "size_t",
474             "validator": {
475                 "range": {
476                     "max": 100,
477                     "min": 0
478                 }
479             }
480         },
481         "warmup_min_items_threshold": {
482             "default": "100",
483             "descr": "Percentage of total items warmed up before we enable traffic.",
484             "type": "size_t",
485             "validator": {
486                 "range": {
487                     "max": 100,
488                     "min": 0
489                 }
490             }
491         }
492     }
493 }