1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31
32
33
34
35
36
37
38
39
40
41
42
43
44
45
46
47
48
49
50
51
52
53
54
55
56
57
58
59
60
61
62
63
64
65
66
67
68
69
70
71
72
73
74
75
76
77
78
79
80
81
82
83
84
85
86
87
88
89
90
91
92
93
94
95
96
97
98
99
100
101
102
103
104
105
106
107
108
109
110
111
112
113
114
115
116
117
118
119
120
121
122
123
124
125
126
127
128
129
130
131
132
133
134
135
136
137
138
139
140
141
142
143
144
145
146
147
148
149
150
151
152
153
154
155
156
157
158
159
160
161
162
163
164
165
166
167
168
169
170
171
172
173
174
175
176
177
178
179
180
181
182
183
184
185
186
187
188
189
190
191
192
193
194
195
196
197
198
199
200
201
202
203
204
205
206
207
208
209
210
211
212
213
214
215
216
217
218
219
220
221
222
223
224
225
226
227
228
229
|
/*
ctdb tunables code
Copyright (C) Andrew Tridgell 2007
This program is free software; you can redistribute it and/or modify
it under the terms of the GNU General Public License as published by
the Free Software Foundation; either version 3 of the License, or
(at your option) any later version.
This program is distributed in the hope that it will be useful,
but WITHOUT ANY WARRANTY; without even the implied warranty of
MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
GNU General Public License for more details.
You should have received a copy of the GNU General Public License
along with this program; if not, see <http://www.gnu.org/licenses/>.
*/
#include "replace.h"
#include "system/network.h"
#include <talloc.h>
#include <tdb.h>
#include "lib/util/debug.h"
#include "ctdb_private.h"
#include "common/common.h"
#include "common/logging.h"
static const struct {
const char *name;
uint32_t default_v;
size_t offset;
bool obsolete;
} tunable_map[] = {
{ "MaxRedirectCount", 3, offsetof(struct ctdb_tunable_list, max_redirect_count), true },
{ "SeqnumInterval", 1000, offsetof(struct ctdb_tunable_list, seqnum_interval), false },
{ "ControlTimeout", 60, offsetof(struct ctdb_tunable_list, control_timeout), false },
{ "TraverseTimeout", 20, offsetof(struct ctdb_tunable_list, traverse_timeout), false },
{ "KeepaliveInterval", 5, offsetof(struct ctdb_tunable_list, keepalive_interval), false },
{ "KeepaliveLimit", 5, offsetof(struct ctdb_tunable_list, keepalive_limit), false },
{ "RecoverTimeout", 120, offsetof(struct ctdb_tunable_list, recover_timeout), false },
{ "RecoverInterval", 1, offsetof(struct ctdb_tunable_list, recover_interval), false },
{ "ElectionTimeout", 3, offsetof(struct ctdb_tunable_list, election_timeout), false },
{ "TakeoverTimeout", 9, offsetof(struct ctdb_tunable_list, takeover_timeout), false },
{ "MonitorInterval", 15, offsetof(struct ctdb_tunable_list, monitor_interval), false },
{ "TickleUpdateInterval",20, offsetof(struct ctdb_tunable_list, tickle_update_interval), false },
{ "EventScriptTimeout", 30, offsetof(struct ctdb_tunable_list, script_timeout), false },
{ "MonitorTimeoutCount", 20, offsetof(struct ctdb_tunable_list, monitor_timeout_count), false },
{ "EventScriptUnhealthyOnTimeout", 0, offsetof(struct ctdb_tunable_list, script_unhealthy_on_timeout), true },
{ "RecoveryGracePeriod", 120, offsetof(struct ctdb_tunable_list, recovery_grace_period), false },
{ "RecoveryBanPeriod", 300, offsetof(struct ctdb_tunable_list, recovery_ban_period), false },
{ "DatabaseHashSize", 100001, offsetof(struct ctdb_tunable_list, database_hash_size), false },
{ "DatabaseMaxDead", 5, offsetof(struct ctdb_tunable_list, database_max_dead), false },
{ "RerecoveryTimeout", 10, offsetof(struct ctdb_tunable_list, rerecovery_timeout), false },
{ "EnableBans", 1, offsetof(struct ctdb_tunable_list, enable_bans), false },
{ "DeterministicIPs", 0, offsetof(struct ctdb_tunable_list, deterministic_public_ips), false },
{ "LCP2PublicIPs", 1, offsetof(struct ctdb_tunable_list, lcp2_public_ip_assignment), false },
{ "ReclockPingPeriod", 60, offsetof(struct ctdb_tunable_list, reclock_ping_period), true },
{ "NoIPFailback", 0, offsetof(struct ctdb_tunable_list, no_ip_failback), false },
{ "DisableIPFailover", 0, offsetof(struct ctdb_tunable_list, disable_ip_failover), false },
{ "VerboseMemoryNames", 0, offsetof(struct ctdb_tunable_list, verbose_memory_names), false },
{ "RecdPingTimeout", 60, offsetof(struct ctdb_tunable_list, recd_ping_timeout), false },
{ "RecdFailCount", 10, offsetof(struct ctdb_tunable_list, recd_ping_failcount), false },
{ "LogLatencyMs", 0, offsetof(struct ctdb_tunable_list, log_latency_ms), false },
{ "RecLockLatencyMs", 1000, offsetof(struct ctdb_tunable_list, reclock_latency_ms), false },
{ "RecoveryDropAllIPs", 120, offsetof(struct ctdb_tunable_list, recovery_drop_all_ips), false },
{ "VerifyRecoveryLock", 1, offsetof(struct ctdb_tunable_list, verify_recovery_lock), true },
{ "VacuumInterval", 10, offsetof(struct ctdb_tunable_list, vacuum_interval), false },
{ "VacuumMaxRunTime", 120, offsetof(struct ctdb_tunable_list, vacuum_max_run_time), false },
{ "RepackLimit", 10000, offsetof(struct ctdb_tunable_list, repack_limit), false },
{ "VacuumLimit", 5000, offsetof(struct ctdb_tunable_list, vacuum_limit), false },
{ "VacuumFastPathCount", 60, offsetof(struct ctdb_tunable_list, vacuum_fast_path_count), false },
{ "MaxQueueDropMsg", 1000000, offsetof(struct ctdb_tunable_list, max_queue_depth_drop_msg), false },
{ "AllowUnhealthyDBRead", 0, offsetof(struct ctdb_tunable_list, allow_unhealthy_db_read), false },
{ "StatHistoryInterval", 1, offsetof(struct ctdb_tunable_list, stat_history_interval), false },
{ "DeferredAttachTO", 120, offsetof(struct ctdb_tunable_list, deferred_attach_timeout), false },
{ "AllowClientDBAttach", 1, offsetof(struct ctdb_tunable_list, allow_client_db_attach), false },
{ "RecoverPDBBySeqNum", 1, offsetof(struct ctdb_tunable_list, recover_pdb_by_seqnum), false },
{ "DeferredRebalanceOnNodeAdd", 300, offsetof(struct ctdb_tunable_list, deferred_rebalance_on_node_add), true },
{ "FetchCollapse", 1, offsetof(struct ctdb_tunable_list, fetch_collapse), false },
{ "HopcountMakeSticky", 50, offsetof(struct ctdb_tunable_list, hopcount_make_sticky), false },
{ "StickyDuration", 600, offsetof(struct ctdb_tunable_list, sticky_duration), false },
{ "StickyPindown", 200, offsetof(struct ctdb_tunable_list, sticky_pindown), false },
{ "NoIPTakeover", 0, offsetof(struct ctdb_tunable_list, no_ip_takeover), false },
{ "DBRecordCountWarn", 100000, offsetof(struct ctdb_tunable_list, db_record_count_warn), false },
{ "DBRecordSizeWarn", 10000000, offsetof(struct ctdb_tunable_list, db_record_size_warn), false },
{ "DBSizeWarn", 100000000, offsetof(struct ctdb_tunable_list, db_size_warn), false },
{ "PullDBPreallocation", 10*1024*1024, offsetof(struct ctdb_tunable_list, pulldb_preallocation_size), false },
{ "NoIPHostOnAllDisabled", 0, offsetof(struct ctdb_tunable_list, no_ip_host_on_all_disabled), false },
{ "Samba3AvoidDeadlocks", 0, offsetof(struct ctdb_tunable_list, samba3_hack), false },
{ "TDBMutexEnabled", 0, offsetof(struct ctdb_tunable_list, mutex_enabled), false },
{ "LockProcessesPerDB", 200, offsetof(struct ctdb_tunable_list, lock_processes_per_db), false },
};
/*
set all tunables to defaults
*/
void ctdb_tunables_set_defaults(struct ctdb_context *ctdb)
{
int i;
for (i=0;i<ARRAY_SIZE(tunable_map);i++) {
*(uint32_t *)(tunable_map[i].offset + (uint8_t*)&ctdb->tunable) = tunable_map[i].default_v;
}
}
/*
get a tunable
*/
int32_t ctdb_control_get_tunable(struct ctdb_context *ctdb, TDB_DATA indata,
TDB_DATA *outdata)
{
struct ctdb_control_get_tunable *t =
(struct ctdb_control_get_tunable *)indata.dptr;
char *name;
uint32_t val;
int i;
if (indata.dsize < sizeof(*t) ||
t->length > indata.dsize - offsetof(struct ctdb_control_get_tunable, name)) {
DEBUG(DEBUG_ERR,("Bad indata in ctdb_control_get_tunable\n"));
return -1;
}
name = talloc_strndup(ctdb, (char*)t->name, t->length);
CTDB_NO_MEMORY(ctdb, name);
for (i=0;i<ARRAY_SIZE(tunable_map);i++) {
if (strcasecmp(name, tunable_map[i].name) == 0) break;
}
talloc_free(name);
if (i == ARRAY_SIZE(tunable_map)) {
return -EINVAL;
}
val = *(uint32_t *)(tunable_map[i].offset + (uint8_t*)&ctdb->tunable);
outdata->dptr = (uint8_t *)talloc(outdata, uint32_t);
CTDB_NO_MEMORY(ctdb, outdata->dptr);
*(uint32_t *)outdata->dptr = val;
outdata->dsize = sizeof(uint32_t);
return 0;
}
/*
set a tunable
*/
int32_t ctdb_control_set_tunable(struct ctdb_context *ctdb, TDB_DATA indata)
{
struct ctdb_tunable_old *t =
(struct ctdb_tunable_old *)indata.dptr;
char *name;
int i;
if (indata.dsize < sizeof(*t) ||
t->length > indata.dsize - offsetof(struct ctdb_tunable_old, name)) {
DEBUG(DEBUG_ERR,("Bad indata in ctdb_control_set_tunable\n"));
return -1;
}
name = talloc_strndup(ctdb, (char *)t->name, t->length);
CTDB_NO_MEMORY(ctdb, name);
for (i=0;i<ARRAY_SIZE(tunable_map);i++) {
if (strcasecmp(name, tunable_map[i].name) == 0) break;
}
talloc_free(name);
if (i == ARRAY_SIZE(tunable_map)) {
return -1;
}
*(uint32_t *)(tunable_map[i].offset + (uint8_t*)&ctdb->tunable) = t->value;
if (tunable_map[i].obsolete) {
DEBUG(DEBUG_WARNING,
("Setting obsolete tunable \"%s\"\n",
tunable_map[i].name));
return 1;
}
return 0;
}
/*
list tunables
*/
int32_t ctdb_control_list_tunables(struct ctdb_context *ctdb, TDB_DATA *outdata)
{
char *list = NULL;
int i;
struct ctdb_control_list_tunable *t;
list = talloc_strdup(outdata, ":");
CTDB_NO_MEMORY(ctdb, list);
for (i=0; i<ARRAY_SIZE(tunable_map); i++) {
if (tunable_map[i].obsolete) {
continue;
}
list = talloc_asprintf_append(list, "%s:",
tunable_map[i].name);
CTDB_NO_MEMORY(ctdb, list);
}
/* cut the last ':' */
list[strlen(list)-1] = '\0';
outdata->dsize = offsetof(struct ctdb_control_list_tunable, data) +
strlen(list) + 1;
outdata->dptr = talloc_size(outdata, outdata->dsize);
CTDB_NO_MEMORY(ctdb, outdata->dptr);
t = (struct ctdb_control_list_tunable *)outdata->dptr;
t->length = strlen(list)+1;
memcpy(t->data, list, t->length);
talloc_free(list);
return 0;
}
|
