Addition of maxbinlogcheck, a new utility in bin
Addition of maxbinlogcheck, a new utility in bin
This commit is contained in:
MassimilianoPinto
249
server/modules/routing/binlog/maxbinlogcheck.c
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249
server/modules/routing/binlog/maxbinlogcheck.c
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/*
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* GNU General Public License as published by the Free Software Foundation,
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* version 2.
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*
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* This program is distributed in the hope that it will be useful, but WITHOUT
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* ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or FITNESS
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* FOR A PARTICULAR PURPOSE. See the GNU General Public License for more
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* details.
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*
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* You should have received a copy of the GNU General Public License along with
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* this program; if not, write to the Free Software Foundation, Inc., 51
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* Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA.
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*
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* Copyright MariaDB Corporation Ab 2015
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*/
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/**
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* @file maxbinlogcheck.c - The MaxScale binlog check utility
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*
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* This utility checks a MySQL 5.6 and MariaDB 10.0.X binlog file and reports
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* any found error or an incomplete transaction.
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* It suggests the pos the file should be trucatetd at.
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*
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* @verbatim
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* Revision History
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*
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* Date Who Description
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* 24/07/2015 Massimiliano Pinto Initial implementation
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* 26/08/2015 Massimiliano Pinto Added mariadb10 option
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* for MariaDB 10 binlog compatibility
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* Currently MariadDB 10 starting transactions
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* are detected checking GTID event
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* with flags = 0
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*
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* @endverbatim
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*/
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#include <stdio.h>
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#include <stdlib.h>
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#include <string.h>
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#include <ctype.h>
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#include <time.h>
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#include <service.h>
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#include <server.h>
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#include <router.h>
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#include <atomic.h>
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#include <spinlock.h>
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#include <blr.h>
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#include <dcb.h>
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#include <spinlock.h>
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#include <housekeeper.h>
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#include <time.h>
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#include <skygw_types.h>
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#include <skygw_utils.h>
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#include <log_manager.h>
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#include <mysql_client_server_protocol.h>
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#include <ini.h>
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#include <sys/stat.h>
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#include <getopt.h>
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#include <version.h>
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#include <gwdirs.h>
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extern int lm_enabled_logfiles_bitmask;
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extern size_t log_ses_count[];
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extern __thread log_info_t tls_log_info;
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extern int blr_read_events_all_events(ROUTER_INSTANCE *router, int fix, int debug);
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extern uint32_t extract_field(uint8_t *src, int bits);
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static void printVersion(const char *progname);
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static void printUsage(const char *progname);
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static struct option long_options[] = {
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{"debug", no_argument, 0, 'd'},
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{"version", no_argument, 0, 'V'},
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{"fix", no_argument, 0, 'f'},
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{"mariadb10", no_argument, 0, 'M'},
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{"help", no_argument, 0, '?'},
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{0, 0, 0, 0}
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};
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char *binlog_check_version = "1.0.0";
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int main(int argc, char **argv) {
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char** arg_vector;
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int arg_count = 4;
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ROUTER_INSTANCE *inst;
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int fd;
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int ret;
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char *ptr;
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char path[PATH_MAX+1] = "";
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unsigned long filelen = 0;
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struct stat statb;
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char c;
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int option_index = 0;
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int num_args = 0;
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int debug_out = 0;
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int fix_file = 0;
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int mariadb10_compat = 0;
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while ((c = getopt_long(argc, argv, "dVfM?", long_options, &option_index)) >= 0)
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{
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switch (c) {
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case 'd':
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debug_out = 1;
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break;
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case 'V':
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printVersion(*argv);
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exit(EXIT_SUCCESS);
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break;
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case 'f':
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fix_file = 1;
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break;
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case 'M':
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mariadb10_compat = 1;
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break;
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case '?':
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printUsage(*argv);
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exit(optopt ? EXIT_FAILURE : EXIT_SUCCESS);
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}
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}
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num_args = optind;
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arg_vector = malloc(sizeof(char*)*(arg_count + 1));
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if(arg_vector == NULL)
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{
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fprintf(stderr,"Error: Memory allocation failed for log manager arg_vector.\n");
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return 1;
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}
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arg_vector[0] = "logmanager";
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arg_vector[1] = "-j";
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arg_vector[2] = "/tmp/maxbinlogcheck";
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arg_vector[3] = "-o";
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arg_vector[4] = NULL;
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skygw_logmanager_init(arg_count,arg_vector);
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skygw_log_set_augmentation(0);
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free(arg_vector);
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if (!debug_out)
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skygw_log_disable(LOGFILE_DEBUG);
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else
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skygw_log_enable(LOGFILE_DEBUG);
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if ((inst = calloc(1, sizeof(ROUTER_INSTANCE))) == NULL) {
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LOGIF(LE, (skygw_log_write_flush(LOGFILE_ERROR,
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"Error: Memory allocation failed for ROUTER_INSTANCE")));
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skygw_log_sync_all();
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skygw_logmanager_done();
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return 1;
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}
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if (argv[num_args] == NULL) {
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printf("ERROR: No binlog file was specified\n");
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exit(EXIT_FAILURE);
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}
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strncpy(path, argv[num_args], PATH_MAX);
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if (fix_file)
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fd = open(path, O_RDWR, 0666);
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else
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fd = open(path, O_RDONLY, 0666);
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if (fd == -1)
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{
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LOGIF(LE, (skygw_log_write(LOGFILE_ERROR,
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"Failed to open binlog file %s: %s",
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path, strerror(errno))));
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skygw_log_sync_all();
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skygw_logmanager_done();
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free(inst);
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return 1;
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}
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inst->binlog_fd = fd;
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if (mariadb10_compat == 1)
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inst->mariadb10_compat = 1;
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ptr = strrchr(path, '/');
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if (ptr)
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strncpy(inst->binlog_name, ptr+1, BINLOG_FNAMELEN);
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else
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strncpy(inst->binlog_name, path, BINLOG_FNAMELEN);
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LOGIF(LM, (skygw_log_write_flush(LOGFILE_MESSAGE,
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"maxbinlogcheck %s", binlog_check_version)));
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if (fstat(inst->binlog_fd, &statb) == 0)
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filelen = statb.st_size;
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LOGIF(LM, (skygw_log_write_flush(LOGFILE_MESSAGE,
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"Checking %s (%s), size %lu bytes", path, inst->binlog_name, filelen)));
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/* read binary log */
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ret = blr_read_events_all_events(inst, fix_file, debug_out);
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close(inst->binlog_fd);
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skygw_log_sync_all();
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LOGIF(LM, (skygw_log_write_flush(LOGFILE_MESSAGE,
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"Check retcode: %i, Binlog Pos = %llu", ret, inst->binlog_position)));
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skygw_log_sync_all();
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skygw_logmanager_done();
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free(inst);
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return 0;
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}
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/**
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* Print version information
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*/
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static void
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printVersion(const char *progname)
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{
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printf("%s Version %s\n", progname, binlog_check_version);
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}
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/**
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* Display the --help text.
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*/
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static void
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printUsage(const char *progname)
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{
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printVersion(progname);
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printf("The MaxScale binlog check utility.\n\n");
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printf("Usage: %s [-f] [-d] [-v] [<binlog file>]\n\n", progname);
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printf(" -f|--fix Fix binlog file, require write permissions (truncate)\n");
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printf(" -d|--debug Print debug messages\n");
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printf(" -M|--mariadb10 MariaDB 10 binlog compatibility\n");
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printf(" -V|--version print version information and exit\n");
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printf(" -?|--help Print this help text\n");
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}
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