4 Copyright (C) Andrew Tridgell 2007
6 This program is free software; you can redistribute it and/or modify
7 it under the terms of the GNU General Public License as published by
8 the Free Software Foundation; either version 3 of the License, or
9 (at your option) any later version.
11 This program is distributed in the hope that it will be useful,
12 but WITHOUT ANY WARRANTY; without even the implied warranty of
13 MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
14 GNU General Public License for more details.
16 You should have received a copy of the GNU General Public License
17 along with this program; if not, see <http://www.gnu.org/licenses/>.
20 #include "../include/ctdb_private.h"
27 { "MaxRedirectCount", 3, offsetof(struct ctdb_tunable, max_redirect_count) },
28 { "SeqnumFrequency", 1, offsetof(struct ctdb_tunable, seqnum_frequency) },
29 { "ControlTimeout", 60, offsetof(struct ctdb_tunable, control_timeout) },
30 { "TraverseTimeout", 20, offsetof(struct ctdb_tunable, traverse_timeout) },
31 { "KeepaliveInterval", 5, offsetof(struct ctdb_tunable, keepalive_interval) },
32 { "KeepaliveLimit", 5, offsetof(struct ctdb_tunable, keepalive_limit) },
33 { "MaxLACount", 7, offsetof(struct ctdb_tunable, max_lacount) },
34 { "RecoverTimeout", 30, offsetof(struct ctdb_tunable, recover_timeout) },
35 { "RecoverInterval", 1, offsetof(struct ctdb_tunable, recover_interval) },
36 { "ElectionTimeout", 3, offsetof(struct ctdb_tunable, election_timeout) },
37 { "TakeoverTimeout", 5, offsetof(struct ctdb_tunable, takeover_timeout) },
38 { "MonitorInterval", 15, offsetof(struct ctdb_tunable, monitor_interval) },
39 { "TickleUpdateInterval",20, offsetof(struct ctdb_tunable, tickle_update_interval) },
40 { "EventScriptTimeout", 20, offsetof(struct ctdb_tunable, script_timeout) },
41 { "RecoveryGracePeriod", 60, offsetof(struct ctdb_tunable, recovery_grace_period) },
42 { "RecoveryBanPeriod", 300, offsetof(struct ctdb_tunable, recovery_ban_period) },
43 { "DatabaseHashSize", 10000, offsetof(struct ctdb_tunable, database_hash_size) },
44 { "DatabaseMaxDead", 5, offsetof(struct ctdb_tunable, database_max_dead) },
45 { "RerecoveryTimeout", 10, offsetof(struct ctdb_tunable, rerecovery_timeout) },
46 { "EnableBans", 1, offsetof(struct ctdb_tunable, enable_bans) },
47 { "DeterministicIPs", 1, offsetof(struct ctdb_tunable, deterministic_public_ips) },
51 set all tunables to defaults
53 void ctdb_tunables_set_defaults(struct ctdb_context *ctdb)
56 for (i=0;i<ARRAY_SIZE(tunable_map);i++) {
57 *(uint32_t *)(tunable_map[i].offset + (uint8_t*)&ctdb->tunable) = tunable_map[i].default_v;
65 int32_t ctdb_control_get_tunable(struct ctdb_context *ctdb, TDB_DATA indata,
68 struct ctdb_control_get_tunable *t =
69 (struct ctdb_control_get_tunable *)indata.dptr;
74 if (indata.dsize < sizeof(*t) ||
75 t->length > indata.dsize - offsetof(struct ctdb_control_get_tunable, name)) {
76 DEBUG(0,("Bad indata in ctdb_control_get_tunable\n"));
80 name = talloc_strndup(ctdb, (char*)t->name, t->length);
81 CTDB_NO_MEMORY(ctdb, name);
83 for (i=0;i<ARRAY_SIZE(tunable_map);i++) {
84 if (strcasecmp(name, tunable_map[i].name) == 0) break;
88 if (i == ARRAY_SIZE(tunable_map)) {
92 val = *(uint32_t *)(tunable_map[i].offset + (uint8_t*)&ctdb->tunable);
94 outdata->dptr = (uint8_t *)talloc(outdata, uint32_t);
95 CTDB_NO_MEMORY(ctdb, outdata->dptr);
97 *(uint32_t *)outdata->dptr = val;
98 outdata->dsize = sizeof(uint32_t);
107 int32_t ctdb_control_set_tunable(struct ctdb_context *ctdb, TDB_DATA indata)
109 struct ctdb_control_set_tunable *t =
110 (struct ctdb_control_set_tunable *)indata.dptr;
114 if (indata.dsize < sizeof(*t) ||
115 t->length > indata.dsize - offsetof(struct ctdb_control_set_tunable, name)) {
116 DEBUG(0,("Bad indata in ctdb_control_set_tunable\n"));
120 name = talloc_strndup(ctdb, (char *)t->name, t->length);
121 CTDB_NO_MEMORY(ctdb, name);
123 for (i=0;i<ARRAY_SIZE(tunable_map);i++) {
124 if (strcasecmp(name, tunable_map[i].name) == 0) break;
129 if (i == ARRAY_SIZE(tunable_map)) {
133 *(uint32_t *)(tunable_map[i].offset + (uint8_t*)&ctdb->tunable) = t->value;
141 int32_t ctdb_control_list_tunables(struct ctdb_context *ctdb, TDB_DATA *outdata)
145 struct ctdb_control_list_tunable *t;
147 list = talloc_strdup(outdata, tunable_map[0].name);
148 CTDB_NO_MEMORY(ctdb, list);
150 for (i=1;i<ARRAY_SIZE(tunable_map);i++) {
151 list = talloc_asprintf_append(list, ":%s", tunable_map[i].name);
152 CTDB_NO_MEMORY(ctdb, list);
155 outdata->dsize = offsetof(struct ctdb_control_list_tunable, data) +
157 outdata->dptr = talloc_size(outdata, outdata->dsize);
158 CTDB_NO_MEMORY(ctdb, outdata->dptr);
160 t = (struct ctdb_control_list_tunable *)outdata->dptr;
161 t->length = strlen(list)+1;
163 memcpy(t->data, list, t->length);