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776e9f56f1
Signed-off-by: Martin Schwenke <martin@meltin.net> Reviewed-by: Amitay Isaacs <amitay@gmail.com>
351 lines
11 KiB
C
351 lines
11 KiB
C
/*
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standalone ctdb daemon
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Copyright (C) Andrew Tridgell 2006
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This program is free software; you can redistribute it and/or modify
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it under the terms of the GNU General Public License as published by
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the Free Software Foundation; either version 3 of the License, or
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(at your option) any later version.
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This program is distributed in the hope that it will be useful,
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but WITHOUT ANY WARRANTY; without even the implied warranty of
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MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
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GNU General Public License for more details.
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You should have received a copy of the GNU General Public License
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along with this program; if not, see <http://www.gnu.org/licenses/>.
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*/
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#include "replace.h"
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#include "system/filesys.h"
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#include "system/time.h"
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#include "system/wait.h"
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#include "system/network.h"
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#include <popt.h>
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#include <talloc.h>
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/* Allow use of deprecated function tevent_loop_allow_nesting() */
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#define TEVENT_DEPRECATED
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#include <tevent.h>
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#include "lib/util/debug.h"
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#include "lib/util/samba_util.h"
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#include "ctdb_private.h"
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#include "common/reqid.h"
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#include "common/system.h"
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#include "common/common.h"
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#include "common/logging.h"
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static struct {
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const char *socket;
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const char *debuglevel;
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const char *nlist;
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const char *transport;
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const char *myaddress;
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const char *public_address_list;
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const char *event_script_dir;
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const char *notification_script;
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const char *logging;
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const char *recovery_lock;
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const char *db_dir;
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const char *db_dir_persistent;
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const char *db_dir_state;
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const char *public_interface;
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int valgrinding;
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int nosetsched;
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int start_as_disabled;
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int start_as_stopped;
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int no_lmaster;
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int no_recmaster;
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int script_log_level;
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int no_publicipcheck;
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int max_persistent_check_errors;
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int torture;
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} options = {
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.socket = CTDB_SOCKET,
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.debuglevel = "NOTICE",
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.nlist = NULL,
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.public_address_list = NULL,
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.transport = "tcp",
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.event_script_dir = NULL,
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.logging = "file:" LOGDIR "/log.ctdb",
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.db_dir = CTDB_VARDIR,
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.db_dir_persistent = CTDB_VARDIR "/persistent",
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.db_dir_state = CTDB_VARDIR "/state",
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.script_log_level = DEBUG_ERR,
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};
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int script_log_level;
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bool fast_start;
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/*
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called by the transport layer when a packet comes in
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*/
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static void ctdb_recv_pkt(struct ctdb_context *ctdb, uint8_t *data, uint32_t length)
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{
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struct ctdb_req_header *hdr = (struct ctdb_req_header *)data;
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CTDB_INCREMENT_STAT(ctdb, node_packets_recv);
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/* up the counter for this source node, so we know its alive */
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if (ctdb_validate_pnn(ctdb, hdr->srcnode)) {
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/* as a special case, redirected calls don't increment the rx_cnt */
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if (hdr->operation != CTDB_REQ_CALL ||
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((struct ctdb_req_call_old *)hdr)->hopcount == 0) {
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ctdb->nodes[hdr->srcnode]->rx_cnt++;
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}
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}
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ctdb_input_pkt(ctdb, hdr);
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}
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static const struct ctdb_upcalls ctdb_upcalls = {
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.recv_pkt = ctdb_recv_pkt,
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.node_dead = ctdb_node_dead,
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.node_connected = ctdb_node_connected
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};
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/*
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main program
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*/
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int main(int argc, const char *argv[])
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{
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struct ctdb_context *ctdb;
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int interactive = 0;
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struct poptOption popt_options[] = {
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POPT_AUTOHELP
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{ "socket", 0, POPT_ARG_STRING, &options.socket, 0, "local socket name", "filename" },
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{ "debug", 'd', POPT_ARG_STRING, &options.debuglevel, 0, "debug level", NULL },
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{ "interactive", 'i', POPT_ARG_NONE, &interactive, 0, "don't fork", NULL },
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{ "public-addresses", 0, POPT_ARG_STRING, &options.public_address_list, 0, "public address list file", "filename" },
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{ "public-interface", 0, POPT_ARG_STRING, &options.public_interface, 0, "public interface", "interface"},
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{ "event-script-dir", 0, POPT_ARG_STRING, &options.event_script_dir, 0, "event script directory", "dirname" },
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{ "logging", 0, POPT_ARG_STRING, &options.logging, 0, "logging method to be used", NULL },
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{ "nlist", 0, POPT_ARG_STRING, &options.nlist, 0, "node list file", "filename" },
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{ "notification-script", 0, POPT_ARG_STRING, &options.notification_script, 0, "notification script", "filename" },
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{ "listen", 0, POPT_ARG_STRING, &options.myaddress, 0, "address to listen on", "address" },
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{ "transport", 0, POPT_ARG_STRING, &options.transport, 0, "protocol transport", NULL },
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{ "dbdir", 0, POPT_ARG_STRING, &options.db_dir, 0, "directory for the tdb files", NULL },
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{ "dbdir-persistent", 0, POPT_ARG_STRING, &options.db_dir_persistent, 0, "directory for persistent tdb files", NULL },
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{ "dbdir-state", 0, POPT_ARG_STRING, &options.db_dir_state, 0, "directory for internal state tdb files", NULL },
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{ "reclock", 0, POPT_ARG_STRING, &options.recovery_lock, 0, "recovery lock", "lock" },
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{ "pidfile", 0, POPT_ARG_STRING, &ctdbd_pidfile, 0, "location of PID file", "filename" },
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{ "valgrinding", 0, POPT_ARG_NONE, &options.valgrinding, 0, "disable setscheduler SCHED_FIFO call, use mmap for tdbs", NULL },
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{ "nosetsched", 0, POPT_ARG_NONE, &options.nosetsched, 0, "disable setscheduler SCHED_FIFO call, use mmap for tdbs", NULL },
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{ "start-as-disabled", 0, POPT_ARG_NONE, &options.start_as_disabled, 0, "Node starts in disabled state", NULL },
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{ "start-as-stopped", 0, POPT_ARG_NONE, &options.start_as_stopped, 0, "Node starts in stopped state", NULL },
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{ "no-lmaster", 0, POPT_ARG_NONE, &options.no_lmaster, 0, "disable lmaster role on this node", NULL },
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{ "no-recmaster", 0, POPT_ARG_NONE, &options.no_recmaster, 0, "disable recmaster role on this node", NULL },
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{ "script-log-level", 0, POPT_ARG_INT, &options.script_log_level, 0, "log level of event script output", NULL },
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{ "nopublicipcheck", 0, POPT_ARG_NONE, &options.no_publicipcheck, 0, "don't check we have/don't have the correct public ip addresses", NULL },
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{ "max-persistent-check-errors", 0, POPT_ARG_INT,
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&options.max_persistent_check_errors, 0,
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"max allowed persistent check errors (default 0)", NULL },
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{ "sloppy-start", 0, POPT_ARG_NONE, &fast_start, 0, "Do not perform full recovery on start", NULL },
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{ "torture", 0, POPT_ARG_NONE, &options.torture, 0, "enable nastiness in library", NULL },
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POPT_TABLEEND
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};
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int opt, ret;
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const char **extra_argv;
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poptContext pc;
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struct tevent_context *ev;
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pc = poptGetContext(argv[0], argc, argv, popt_options, POPT_CONTEXT_KEEP_FIRST);
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while ((opt = poptGetNextOpt(pc)) != -1) {
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switch (opt) {
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default:
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fprintf(stderr, "Invalid option %s: %s\n",
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poptBadOption(pc, 0), poptStrerror(opt));
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exit(1);
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}
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}
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/* If there are extra arguments then exit with usage message */
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extra_argv = poptGetArgs(pc);
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if (extra_argv) {
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extra_argv++;
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if (extra_argv[0]) {
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poptPrintHelp(pc, stdout, 0);
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exit(1);
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}
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}
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talloc_enable_null_tracking();
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fault_setup();
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ev = tevent_context_init(NULL);
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if (ev == NULL) {
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fprintf(stderr, "tevent_context_init() failed\n");
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exit(1);
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}
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tevent_loop_allow_nesting(ev);
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ctdb = ctdb_init(ev);
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if (ctdb == NULL) {
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fprintf(stderr, "Failed to init ctdb\n");
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exit(1);
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}
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if (options.torture == 1) {
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ctdb_set_flags(ctdb, CTDB_FLAG_TORTURE);
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}
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/* Log to stderr when running as interactive */
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if (interactive) {
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options.logging = "file:";
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}
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/* Initialize logging and set the debug level */
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if (!ctdb_logging_init(ctdb, options.logging, options.debuglevel)) {
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exit(1);
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}
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setenv("CTDB_LOGGING", options.logging, 1);
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setenv("CTDB_DEBUGLEVEL", debug_level_to_string(DEBUGLEVEL), 1);
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setenv("CTDB_SOCKET", options.socket, 1);
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ret = ctdb_set_socketname(ctdb, options.socket);
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if (ret == -1) {
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DEBUG(DEBUG_ERR, ("ctdb_set_socketname() failed\n"));
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exit(1);
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}
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ctdb->start_as_disabled = options.start_as_disabled;
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ctdb->start_as_stopped = options.start_as_stopped;
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script_log_level = options.script_log_level;
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DEBUG(DEBUG_NOTICE,("CTDB starting on node\n"));
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gettimeofday(&ctdb->ctdbd_start_time, NULL);
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gettimeofday(&ctdb->last_recovery_started, NULL);
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gettimeofday(&ctdb->last_recovery_finished, NULL);
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ctdb->recovery_mode = CTDB_RECOVERY_NORMAL;
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ctdb->recovery_master = (uint32_t)-1;
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ctdb->upcalls = &ctdb_upcalls;
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if (options.recovery_lock == NULL) {
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DEBUG(DEBUG_WARNING, ("Recovery lock not set\n"));
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}
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ctdb->recovery_lock = options.recovery_lock;
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TALLOC_FREE(ctdb->idr);
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ret = reqid_init(ctdb, 0, &ctdb->idr);;
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if (ret != 0) {
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DEBUG(DEBUG_ERR, ("reqid_init failed (%s)\n", strerror(ret)));
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exit(1);
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}
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ctdb_tunables_set_defaults(ctdb);
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ret = ctdb_set_transport(ctdb, options.transport);
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if (ret == -1) {
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DEBUG(DEBUG_ERR,("ctdb_set_transport failed - %s\n",
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ctdb_errstr(ctdb)));
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exit(1);
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}
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/* tell ctdb what address to listen on */
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if (options.myaddress) {
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ret = ctdb_set_address(ctdb, options.myaddress);
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if (ret == -1) {
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DEBUG(DEBUG_ERR,("ctdb_set_address failed - %s\n",
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ctdb_errstr(ctdb)));
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exit(1);
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}
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}
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/* set ctdbd capabilities */
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ctdb->capabilities = CTDB_CAP_DEFAULT;
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if (options.no_lmaster != 0) {
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ctdb->capabilities &= ~CTDB_CAP_LMASTER;
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}
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if (options.no_recmaster != 0) {
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ctdb->capabilities &= ~CTDB_CAP_RECMASTER;
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}
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/* Initialise this node's PNN to the unknown value. This will
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* be set to the correct value by either ctdb_add_node() as
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* part of loading the nodes file or by
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* ctdb_tcp_listen_automatic() when the transport is
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* initialised. At some point we should de-optimise this and
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* pull it out into ctdb_start_daemon() so it is done clearly
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* and only in one place.
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*/
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ctdb->pnn = -1;
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/* Default value for CTDB_BASE - don't override */
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setenv("CTDB_BASE", CTDB_ETCDIR, 0);
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/* tell ctdb what nodes are available */
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if (options.nlist != NULL) {
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ctdb->nodes_file = options.nlist;
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} else {
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ctdb->nodes_file =
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talloc_asprintf(ctdb, "%s/nodes", getenv("CTDB_BASE"));
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if (ctdb->nodes_file == NULL) {
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DEBUG(DEBUG_ERR,(__location__ " Out of memory\n"));
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exit(1);
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}
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}
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ctdb_load_nodes_file(ctdb);
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ctdb->db_directory = options.db_dir;
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mkdir_p_or_die(ctdb->db_directory, 0700);
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ctdb->db_directory_persistent = options.db_dir_persistent;
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mkdir_p_or_die(ctdb->db_directory_persistent, 0700);
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ctdb->db_directory_state = options.db_dir_state;
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mkdir_p_or_die(ctdb->db_directory_state, 0700);
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if (options.public_interface) {
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ctdb->default_public_interface = talloc_strdup(ctdb, options.public_interface);
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CTDB_NO_MEMORY(ctdb, ctdb->default_public_interface);
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}
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if (options.event_script_dir != NULL) {
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ctdb->event_script_dir = options.event_script_dir;
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} else {
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ctdb->event_script_dir = talloc_asprintf(ctdb, "%s/events.d",
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getenv("CTDB_BASE"));
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if (ctdb->event_script_dir == NULL) {
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DEBUG(DEBUG_ERR,(__location__ " Out of memory\n"));
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exit(1);
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}
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}
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if (options.notification_script != NULL) {
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ret = ctdb_set_notification_script(ctdb, options.notification_script);
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if (ret == -1) {
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DEBUG(DEBUG_ERR,("Unable to setup notification script\n"));
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exit(1);
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}
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}
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ctdb->valgrinding = (options.valgrinding == 1);
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ctdb->do_setsched = (options.nosetsched != 1);
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if (ctdb->valgrinding) {
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ctdb->do_setsched = false;
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}
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ctdb->public_addresses_file = options.public_address_list;
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ctdb->do_checkpublicip = (options.no_publicipcheck == 0);
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if (options.max_persistent_check_errors < 0) {
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ctdb->max_persistent_check_errors = 0xFFFFFFFFFFFFFFFFLL;
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} else {
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ctdb->max_persistent_check_errors = (uint64_t)options.max_persistent_check_errors;
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}
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/* start the protocol running (as a child) */
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return ctdb_start_daemon(ctdb, interactive?false:true);
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}
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