Zendesk's Maxwell Compatibility (#119)
* Binlog router: Introduce maxwell_compatibility flag * Binlog router: Handle 'server vars' query This is a step towards using MaxScale with Zendesk's Maxwell. * Binlog router: Handle results charset query * Binlog router: Handle sql_mode query * Binlog router: Handle server_id query * Binlog router: Handle 'binlog vars' queries * Binlog router: Handle @@lower_case_table_names query * Binlog router: Handle @@global.binlog_checksum query * Binlog router: DRY Maxwell SQL queries
This commit is contained in:
Adam Szkoda
committed by
MassimilianoPinto
MassimilianoPinto
parent
fdc66c660c
commit
825782799f
@ -248,6 +248,10 @@ enum blr_aes_mode
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#define MARIADB_FL_DDL 32
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#define MARIADB_FL_STANDALONE 1
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/* Maxwell-related SQL queries */
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#define MYSQL_CONNECTOR_SERVER_VARS_QUERY "SELECT @@session.auto_increment_increment AS auto_increment_increment, @@character_set_client AS character_set_client, @@character_set_connection AS character_set_connection, @@character_set_results AS character_set_results, @@character_set_server AS character_set_server, @@init_connect AS init_connect, @@interactive_timeout AS interactive_timeout, @@license AS license, @@lower_case_table_names AS lower_case_table_names, @@max_allowed_packet AS max_allowed_packet, @@net_buffer_length AS net_buffer_length, @@net_write_timeout AS net_write_timeout, @@query_cache_size AS query_cache_size, @@query_cache_type AS query_cache_type, @@sql_mode AS sql_mode, @@system_time_zone AS system_time_zone, @@time_zone AS time_zone, @@tx_isolation AS tx_isolation, @@wait_timeout AS wait_timeout"
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#define MYSQL_CONNECTOR_SQL_MODE_QUERY "SET sql_mode='NO_AUTO_CREATE_USER,NO_ENGINE_SUBSTITUTION,STRICT_TRANS_TABLES'"
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/* Saved credential file name's tail */
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static const char BLR_DBUSERS_DIR[] = "cache/users";
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static const char BLR_DBUSERS_FILE[] = "dbusers";
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@ -479,23 +483,26 @@ typedef struct
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*/
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typedef struct
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{
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GWBUF *server_id; /*< Master server id */
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GWBUF *heartbeat; /*< Heartbeat period */
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GWBUF *chksum1; /*< Binlog checksum 1st response */
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GWBUF *chksum2; /*< Binlog checksum 2nd response */
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GWBUF *gtid_mode; /*< GTID Mode response */
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GWBUF *uuid; /*< Master UUID */
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GWBUF *setslaveuuid; /*< Set Slave UUID */
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GWBUF *setnames; /*< Set NAMES latin1 */
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GWBUF *utf8; /*< Set NAMES utf8 */
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GWBUF *select1; /*< select 1 */
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GWBUF *selectver; /*< select version() */
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GWBUF *selectvercom; /*< select @@version_comment */
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GWBUF *selecthostname;/*< select @@hostname */
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GWBUF *map; /*< select @@max_allowed_packet */
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GWBUF *mariadb10; /*< set @mariadb_slave_capability */
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uint8_t *fde_event; /*< Format Description Event */
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int fde_len; /*< Length of fde_event */
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GWBUF *server_id; /*< Master server id */
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GWBUF *heartbeat; /*< Heartbeat period */
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GWBUF *chksum1; /*< Binlog checksum 1st response */
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GWBUF *chksum2; /*< Binlog checksum 2nd response */
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GWBUF *gtid_mode; /*< GTID Mode response */
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GWBUF *uuid; /*< Master UUID */
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GWBUF *setslaveuuid; /*< Set Slave UUID */
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GWBUF *setnames; /*< Set NAMES latin1 */
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GWBUF *utf8; /*< Set NAMES utf8 */
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GWBUF *select1; /*< select 1 */
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GWBUF *selectver; /*< select version() */
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GWBUF *selectvercom; /*< select @@version_comment */
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GWBUF *selecthostname; /*< select @@hostname */
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GWBUF *map; /*< select @@max_allowed_packet */
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GWBUF *mariadb10; /*< set @mariadb_slave_capability */
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GWBUF *server_vars; /*< MySQL Connector master server variables */
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GWBUF *binlog_vars; /*< SELECT @@global.log_bin, @@global.binlog_format, @@global.binlog_row_image; */
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GWBUF *lower_case_tables; /*< select @@lower_case_table_names */
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uint8_t *fde_event; /*< Format Description Event */
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int fde_len; /*< Length of fde_event */
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} MASTER_RESPONSES;
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/**
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@ -528,6 +535,7 @@ typedef struct router_instance
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char *fileroot; /*< Root of binlog filename */
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bool master_chksum; /*< Does the master provide checksums */
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bool mariadb10_compat; /*< MariaDB 10.0 compatibility */
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bool maxwell_compat; /*< Zendesk's Maxwell compatibility */
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char *master_uuid; /*< Set UUID of the master, sent to slaves */
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DCB *master; /*< DCB for master connection */
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DCB *client; /*< DCB for dummy client */
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@ -664,29 +672,58 @@ typedef struct binlog_encryption_ctx
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#define BLRM_SUUID 0x000C
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#define BLRM_LATIN1 0x000D
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#define BLRM_UTF8 0x000E
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#define BLRM_SELECT1 0x000F
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#define BLRM_SELECTVER 0x0010
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#define BLRM_SELECTVERCOM 0x0011
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#define BLRM_SELECTHOSTNAME 0x0012
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#define BLRM_MAP 0x0013
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#define BLRM_REGISTER 0x0014
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#define BLRM_CHECK_SEMISYNC 0x0015
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#define BLRM_REQUEST_SEMISYNC 0x0016
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#define BLRM_REQUEST_BINLOGDUMP 0x0017
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#define BLRM_BINLOGDUMP 0x0018
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#define BLRM_SLAVE_STOPPED 0x0019
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#define BLRM_RESULTS_CHARSET 0x000F
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#define BLRM_SQL_MODE 0x0010
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#define BLRM_SELECT1 0x0011
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#define BLRM_SELECTVER 0x0012
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#define BLRM_SELECTVERCOM 0x0013
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#define BLRM_SELECTHOSTNAME 0x0014
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#define BLRM_MAP 0x0015
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#define BLRM_SERVER_VARS 0x0016
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#define BLRM_BINLOG_VARS 0x0017
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#define BLRM_LOWER_CASE_TABLES 0x0018
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#define BLRM_REGISTER 0x0019
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#define BLRM_CHECK_SEMISYNC 0x001A
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#define BLRM_REQUEST_SEMISYNC 0x001B
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#define BLRM_REQUEST_BINLOGDUMP 0x001C
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#define BLRM_BINLOGDUMP 0x001D
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#define BLRM_SLAVE_STOPPED 0x001E
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#define BLRM_MAXSTATE 0x0019
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#define BLRM_MAXSTATE 0x001E
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static char *blrm_states[] =
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{
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"Unconfigured", "Unconnected", "Connecting", "Authenticated", "Timestamp retrieval",
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"Server ID retrieval", "HeartBeat Period setup", "binlog checksum config",
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"binlog checksum rerieval", "Set MariaDB slave capability", "GTID Mode retrieval",
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"Master UUID retrieval", "Set Slave UUID", "Set Names latin1", "Set Names utf8", "select 1",
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"select version()", "select @@version_comment", "select @@hostname",
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"select @@max_allowed_packet", "Register slave", "Semi-Sync Support retrivial",
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"Request Semi-Sync Replication", "Request Binlog Dump", "Binlog Dump", "Slave stopped"
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"Unconfigured",
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"Unconnected",
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"Connecting",
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"Authenticated",
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"Timestamp retrieval",
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"Server ID retrieval",
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"HeartBeat Period setup",
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"binlog checksum config",
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"binlog checksum rerieval",
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"Set MariaDB slave capability",
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"GTID Mode retrieval",
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"Master UUID retrieval",
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"Set Slave UUID",
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"Set Names latin1",
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"Set Names utf8",
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"Set results charset null",
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"Set sql_mode",
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"select 1",
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"select version()",
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"select @@version_comment",
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"select @@hostname",
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"select @@max_allowed_packet",
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"Query server variables",
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"Query binlog variables",
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"Query @@lower_case_table_names",
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"Register slave",
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"Semi-Sync Support retrivial",
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"Request Semi-Sync Replication",
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"Request Binlog Dump",
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"Binlog Dump",
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"Slave stopped"
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};
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#define BLRS_CREATED 0x0000
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@ -787,6 +824,7 @@ extern const char *blr_get_encryption_algorithm(int);
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extern int blr_check_encryption_algorithm(char *);
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extern const char *blr_encryption_algorithm_list(void);
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extern bool blr_get_encryption_key(ROUTER_INSTANCE *);
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extern const char *blr_skip_leading_sql_comments(const char *);
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MXS_END_DECLS
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