mirror of https://github.com/sysown/proxysql
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623 lines
24 KiB
623 lines
24 KiB
#ifndef __CLASS_MYSQL_HOSTGROUPS_MANAGER_H
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#define __CLASS_MYSQL_HOSTGROUPS_MANAGER_H
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#include "proxysql.h"
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#include "cpp.h"
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#include "proxysql_gtid.h"
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#include <thread>
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#include <iostream>
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#include "thread.h"
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#include "wqueue.h"
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#include "ev.h"
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/*
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Enabling STRESSTEST_POOL ProxySQL will do a lot of loops in the connection pool
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This is for internal testing ONLY!!!!
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#define STRESSTEST_POOL
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*/
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#define MHM_PTHREAD_MUTEX
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// we have 2 versions of the same tables: with (debug) and without (no debug) checks
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#ifdef DEBUG
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#define MYHGM_MYSQL_SERVERS "CREATE TABLE mysql_servers ( hostgroup_id INT NOT NULL DEFAULT 0 , hostname VARCHAR NOT NULL , port INT NOT NULL DEFAULT 3306 , gtid_port INT NOT NULL DEFAULT 0 , weight INT CHECK (weight >= 0) NOT NULL DEFAULT 1 , status INT CHECK (status IN (0, 1, 2, 3, 4)) NOT NULL DEFAULT 0 , compression INT CHECK (compression >=0 AND compression <= 102400) NOT NULL DEFAULT 0 , max_connections INT CHECK (max_connections >=0) NOT NULL DEFAULT 1000 , max_replication_lag INT CHECK (max_replication_lag >= 0 AND max_replication_lag <= 126144000) NOT NULL DEFAULT 0 , use_ssl INT CHECK (use_ssl IN(0,1)) NOT NULL DEFAULT 0 , max_latency_ms INT UNSIGNED CHECK (max_latency_ms>=0) NOT NULL DEFAULT 0 , comment VARCHAR NOT NULL DEFAULT '' , mem_pointer INT NOT NULL DEFAULT 0 , PRIMARY KEY (hostgroup_id, hostname, port) )"
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#define MYHGM_MYSQL_SERVERS_INCOMING "CREATE TABLE mysql_servers_incoming ( hostgroup_id INT NOT NULL DEFAULT 0 , hostname VARCHAR NOT NULL , port INT NOT NULL DEFAULT 3306 , gtid_port INT NOT NULL DEFAULT 0 , weight INT CHECK (weight >= 0) NOT NULL DEFAULT 1 , status INT CHECK (status IN (0, 1, 2, 3, 4)) NOT NULL DEFAULT 0 , compression INT CHECK (compression >=0 AND compression <= 102400) NOT NULL DEFAULT 0 , max_connections INT CHECK (max_connections >=0) NOT NULL DEFAULT 1000 , max_replication_lag INT CHECK (max_replication_lag >= 0 AND max_replication_lag <= 126144000) NOT NULL DEFAULT 0 , use_ssl INT CHECK (use_ssl IN(0,1)) NOT NULL DEFAULT 0 , max_latency_ms INT UNSIGNED CHECK (max_latency_ms>=0) NOT NULL DEFAULT 0 , comment VARCHAR NOT NULL DEFAULT '' , PRIMARY KEY (hostgroup_id, hostname, port))"
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#else
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#define MYHGM_MYSQL_SERVERS "CREATE TABLE mysql_servers ( hostgroup_id INT NOT NULL DEFAULT 0 , hostname VARCHAR NOT NULL , port INT NOT NULL DEFAULT 3306 , gtid_port INT NOT NULL DEFAULT 0 , weight INT NOT NULL DEFAULT 1 , status INT NOT NULL DEFAULT 0 , compression INT NOT NULL DEFAULT 0 , max_connections INT NOT NULL DEFAULT 1000 , max_replication_lag INT NOT NULL DEFAULT 0 , use_ssl INT NOT NULL DEFAULT 0 , max_latency_ms INT UNSIGNED NOT NULL DEFAULT 0 , comment VARCHAR NOT NULL DEFAULT '' , mem_pointer INT NOT NULL DEFAULT 0 , PRIMARY KEY (hostgroup_id, hostname, port) )"
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#define MYHGM_MYSQL_SERVERS_INCOMING "CREATE TABLE mysql_servers_incoming ( hostgroup_id INT NOT NULL DEFAULT 0 , hostname VARCHAR NOT NULL , port INT NOT NULL DEFAULT 3306 , gtid_port INT NOT NULL DEFAULT 0 , weight INT NOT NULL DEFAULT 1 , status INT NOT NULL DEFAULT 0 , compression INT NOT NULL DEFAULT 0 , max_connections INT NOT NULL DEFAULT 1000 , max_replication_lag INT NOT NULL DEFAULT 0 , use_ssl INT NOT NULL DEFAULT 0 , max_latency_ms INT UNSIGNED NOT NULL DEFAULT 0 , comment VARCHAR NOT NULL DEFAULT '' , PRIMARY KEY (hostgroup_id, hostname, port))"
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#endif /* DEBUG */
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#define MYHGM_MYSQL_REPLICATION_HOSTGROUPS "CREATE TABLE mysql_replication_hostgroups (writer_hostgroup INT CHECK (writer_hostgroup>=0) NOT NULL PRIMARY KEY , reader_hostgroup INT NOT NULL CHECK (reader_hostgroup<>writer_hostgroup AND reader_hostgroup>=0) , check_type VARCHAR CHECK (LOWER(check_type) IN ('read_only','innodb_read_only','super_read_only','read_only|innodb_read_only','read_only&innodb_read_only')) NOT NULL DEFAULT 'read_only' , comment VARCHAR NOT NULL DEFAULT '' , UNIQUE (reader_hostgroup))"
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#define MYHGM_MYSQL_GROUP_REPLICATION_HOSTGROUPS "CREATE TABLE mysql_group_replication_hostgroups (writer_hostgroup INT CHECK (writer_hostgroup>=0) NOT NULL PRIMARY KEY , backup_writer_hostgroup INT CHECK (backup_writer_hostgroup>=0 AND backup_writer_hostgroup<>writer_hostgroup) NOT NULL , reader_hostgroup INT NOT NULL CHECK (reader_hostgroup<>writer_hostgroup AND backup_writer_hostgroup<>reader_hostgroup AND reader_hostgroup>0) , offline_hostgroup INT NOT NULL CHECK (offline_hostgroup<>writer_hostgroup AND offline_hostgroup<>reader_hostgroup AND backup_writer_hostgroup<>offline_hostgroup AND offline_hostgroup>=0) , active INT CHECK (active IN (0,1)) NOT NULL DEFAULT 1 , max_writers INT NOT NULL CHECK (max_writers >= 0) DEFAULT 1 , writer_is_also_reader INT CHECK (writer_is_also_reader IN (0,1,2)) NOT NULL DEFAULT 0 , max_transactions_behind INT CHECK (max_transactions_behind>=0) NOT NULL DEFAULT 0 , comment VARCHAR , UNIQUE (reader_hostgroup) , UNIQUE (offline_hostgroup) , UNIQUE (backup_writer_hostgroup))"
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#define MYHGM_MYSQL_GALERA_HOSTGROUPS "CREATE TABLE mysql_galera_hostgroups (writer_hostgroup INT CHECK (writer_hostgroup>=0) NOT NULL PRIMARY KEY , backup_writer_hostgroup INT CHECK (backup_writer_hostgroup>=0 AND backup_writer_hostgroup<>writer_hostgroup) NOT NULL , reader_hostgroup INT NOT NULL CHECK (reader_hostgroup<>writer_hostgroup AND backup_writer_hostgroup<>reader_hostgroup AND reader_hostgroup>0) , offline_hostgroup INT NOT NULL CHECK (offline_hostgroup<>writer_hostgroup AND offline_hostgroup<>reader_hostgroup AND backup_writer_hostgroup<>offline_hostgroup AND offline_hostgroup>=0) , active INT CHECK (active IN (0,1)) NOT NULL DEFAULT 1 , max_writers INT NOT NULL CHECK (max_writers >= 0) DEFAULT 1 , writer_is_also_reader INT CHECK (writer_is_also_reader IN (0,1,2)) NOT NULL DEFAULT 0 , max_transactions_behind INT CHECK (max_transactions_behind>=0) NOT NULL DEFAULT 0 , comment VARCHAR , UNIQUE (reader_hostgroup) , UNIQUE (offline_hostgroup) , UNIQUE (backup_writer_hostgroup))"
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#define MYHGM_MYSQL_AWS_AURORA_HOSTGROUPS "CREATE TABLE mysql_aws_aurora_hostgroups (writer_hostgroup INT CHECK (writer_hostgroup>=0) NOT NULL PRIMARY KEY , reader_hostgroup INT NOT NULL CHECK (reader_hostgroup<>writer_hostgroup AND reader_hostgroup>0) , active INT CHECK (active IN (0,1)) NOT NULL DEFAULT 1 , aurora_port INT NOT NUlL DEFAULT 3306 , domain_name VARCHAR NOT NULL DEFAULT '' , max_lag_ms INT NOT NULL CHECK (max_lag_ms>= 10 AND max_lag_ms <= 600000) DEFAULT 600000 , check_interval_ms INT NOT NULL CHECK (check_interval_ms >= 100 AND check_interval_ms <= 600000) DEFAULT 1000 , check_timeout_ms INT NOT NULL CHECK (check_timeout_ms >= 80 AND check_timeout_ms <= 3000) DEFAULT 800 , writer_is_also_reader INT CHECK (writer_is_also_reader IN (0,1)) NOT NULL DEFAULT 0 , new_reader_weight INT CHECK (new_reader_weight >= 0 AND new_reader_weight <=10000000) NOT NULL DEFAULT 1 , comment VARCHAR , UNIQUE (reader_hostgroup))"
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typedef std::unordered_map<std::uint64_t, void *> umap_mysql_errors;
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class MySrvConnList;
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class MySrvC;
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class MySrvList;
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class MyHGC;
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enum MySerStatus {
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MYSQL_SERVER_STATUS_ONLINE,
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MYSQL_SERVER_STATUS_SHUNNED,
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MYSQL_SERVER_STATUS_OFFLINE_SOFT,
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MYSQL_SERVER_STATUS_OFFLINE_HARD,
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MYSQL_SERVER_STATUS_SHUNNED_REPLICATION_LAG
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};
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std::string gtid_executed_to_string(gtid_set_t& gtid_executed);
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void addGtid(const gtid_t& gtid, gtid_set_t& gtid_executed);
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class GTID_Server_Data {
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public:
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char *address;
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uint16_t port;
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uint16_t mysql_port;
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char *data;
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size_t len;
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size_t size;
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size_t pos;
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struct ev_io *w;
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char uuid_server[64];
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unsigned long long events_read;
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gtid_set_t gtid_executed;
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bool active;
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GTID_Server_Data(struct ev_io *_w, char *_address, uint16_t _port, uint16_t _mysql_port);
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void resize(size_t _s);
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~GTID_Server_Data();
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bool readall();
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bool writeout();
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bool read_next_gtid();
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/*
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GTID_Server_Data(struct ev_io *_w, char *_address, uint16_t _port, uint16_t _mysql_port) {
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active = true;
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w = _w;
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size = 1024; // 1KB buffer
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data = (char *)malloc(size);
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uuid_server[0] = 0;
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pos = 0;
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len = 0;
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address = strdup(_address);
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port = _port;
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mysql_port = _mysql_port;
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}
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void resize(size_t _s) {
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char *data_ = (char *)malloc(_s);
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memcpy(data_, data, (_s > size ? size : _s));
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size = _s;
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free(data);
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data = data_;
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}
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~GTID_Server_Data() {
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free(address);
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free(data);
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}
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bool readall() {
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bool ret = true;
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if (size == len) {
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// buffer is full, expand
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resize(len*2);
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}
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int rc = 0;
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rc = read(w->fd,data+len,size-len);
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if (rc > 0) {
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len += rc;
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} else {
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int myerr = errno;
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fprintf(stderr,"read returned %d bytes, error %d\n", rc, myerr);
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if (
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//(rc == 0) ||
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(rc==-1 && myerr != EINTR && myerr != EAGAIN)
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) {
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ret = false;
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}
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}
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return ret;
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}
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bool writeout() {
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bool ret = true;
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if (len==0) {
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return ret;
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}
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int rc = 0;
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rc = write(w->fd,data+pos,len-pos);
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if (rc > 0) {
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pos += rc;
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if (pos >= len/2) {
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memmove(data,data+pos,len-pos);
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len = len-pos;
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pos = 0;
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}
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}
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return ret;
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}
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bool read_next_gtid() {
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if (len==0) {
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return false;
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}
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void *nlp = NULL;
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nlp = memchr(data+pos,'\n',len-pos);
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if (nlp == NULL) {
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return false;
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}
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int l = (char *)nlp - (data+pos);
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char rec_msg[80];
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if (strncmp(data+pos,(char *)"ST=",3)==0) {
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// we are reading the bootstrap
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char *bs = (char *)malloc(l+1-3); // length + 1 (null byte) - 3 (header)
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memcpy(bs,data+pos+3,l+1-3);
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char *saveptr1=NULL;
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char *saveptr2=NULL;
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//char *saveptr3=NULL;
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char *token = NULL;
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char *subtoken = NULL;
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//char *subtoken2 = NULL;
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char *str1 = NULL;
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char *str2 = NULL;
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//char *str3 = NULL;
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for (str1 = bs; ; str1 = NULL) {
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token = strtok_r(str1, ",", &saveptr1);
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if (token == NULL) {
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break;
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}
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int j = 0;
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for (str2 = token; ; str2 = NULL) {
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subtoken = strtok_r(str2, ":", &saveptr2);
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if (subtoken == NULL) {
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break;
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}
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j++;
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if (j%2 == 1) { // we are reading the uuid
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char *p = uuid_server;
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for (unsigned int k=0; k<strlen(subtoken); k++) {
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if (subtoken[k]!='-') {
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*p = subtoken[k];
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p++;
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}
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}
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//fprintf(stdout,"BS from %s\n", uuid_server);
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} else { // we are reading the trxids
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uint64_t trx_from;
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uint64_t trx_to;
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sscanf(subtoken,"%lu-%lu",&trx_from,&trx_to);
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//fprintf(stdout,"BS from %s:%lu-%lu\n", uuid_server, trx_from, trx_to);
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std::string s = uuid_server;
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gtid_executed[s].emplace_back(trx_from, trx_to);
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}
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}
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}
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pos += l+1;
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free(bs);
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//return true;
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} else {
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strncpy(rec_msg,data+pos,l);
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pos += l+1;
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rec_msg[l]=0;
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//int rc = write(1,data+pos,l+1);
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//fprintf(stdout,"%s\n", rec_msg);
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if (rec_msg[0]=='I') {
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//char rec_uuid[80];
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uint64_t rec_trxid;
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char *a = NULL;
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int ul = 0;
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switch (rec_msg[1]) {
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case '1':
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//sscanf(rec_msg+3,"%s\:%lu",uuid_server,&rec_trxid);
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a = strchr(rec_msg+3,':');
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ul = a-rec_msg-3;
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strncpy(uuid_server,rec_msg+3,ul);
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uuid_server[ul] = 0;
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rec_trxid=atoll(a+1);
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break;
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case '2':
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//sscanf(rec_msg+3,"%lu",&rec_trxid);
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rec_trxid=atoll(rec_msg+3);
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break;
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default:
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break;
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}
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fprintf(stdout,"%s:%lu\n", uuid_server, rec_trxid);
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std::string s = uuid_server;
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gtid_t new_gtid = std::make_pair(s,rec_trxid);
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addGtid(new_gtid,gtid_executed);
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//return true;
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}
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}
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std::cout << "current pos " << gtid_executed_to_string(gtid_executed) << std::endl << std::endl;
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return true;
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}
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*/
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bool gtid_exists(char *gtid_uuid, uint64_t gtid_trxid);
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void read_all_gtids();
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void dump();
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/*
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bool gtid_exists(char *gtid_uuid, uint64_t gtid_trxid) {
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std::string s = gtid_uuid;
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auto it = gtid_executed.find(s);
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fprintf(stderr,"Checking if server %s:%d has GTID %s:%lu ... ", address, port, gtid_uuid, gtid_trxid);
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if (it == gtid_executed.end()) {
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fprintf(stderr,"NO\n");
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return false;
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}
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for (auto itr = it->second.begin(); itr != it->second.end(); ++itr) {
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if ((int64_t)gtid_trxid >= itr->first && (int64_t)gtid_trxid <= itr->second) {
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fprintf(stderr,"YES\n");
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return true;
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}
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}
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fprintf(stderr,"NO\n");
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return false;
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}
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void read_all_gtids() {
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while (read_next_gtid()) {
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}
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}
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void dump() {
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if (len==0) {
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return;
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}
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read_all_gtids();
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//int rc = write(1,data+pos,len-pos);
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fflush(stdout);
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///pos += rc;
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if (pos >= len/2) {
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memmove(data,data+pos,len-pos);
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len = len-pos;
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pos = 0;
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}
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}
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*/
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};
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class MySrvConnList {
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private:
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PtrArray *conns;
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MySrvC *mysrvc;
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int find_idx(MySQL_Connection *c) {
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//for (unsigned int i=0; i<conns_length(); i++) {
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for (unsigned int i=0; i<conns->len; i++) {
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MySQL_Connection *conn = NULL;
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conn = (MySQL_Connection *)conns->index(i);
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if (conn==c) {
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return (unsigned int)i;
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}
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}
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return -1;
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}
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public:
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MySrvConnList(MySrvC *);
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~MySrvConnList();
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void add(MySQL_Connection *);
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void remove(MySQL_Connection *c) {
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int i = -1;
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i = find_idx(c);
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assert(i>=0);
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conns->remove_index_fast((unsigned int)i);
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}
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MySQL_Connection *remove(int);
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MySQL_Connection * get_random_MyConn(MySQL_Session *sess, bool ff);
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unsigned int conns_length() { return conns->len; }
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void drop_all_connections();
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MySQL_Connection *index(unsigned int);
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};
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class MySrvC { // MySQL Server Container
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public:
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MyHGC *myhgc;
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char *address;
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uint16_t port;
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uint16_t gtid_port;
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uint16_t flags;
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unsigned int weight;
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enum MySerStatus status;
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unsigned int compression;
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unsigned int max_connections;
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unsigned int aws_aurora_current_lag_us;
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unsigned int max_replication_lag;
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unsigned int max_connections_used; // The maximum number of connections that has been opened
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unsigned int connect_OK;
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unsigned int connect_ERR;
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// note that these variables are in microsecond, while user defines max lantency in millisecond
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unsigned int current_latency_us;
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unsigned int max_latency_us;
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time_t time_last_detected_error;
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unsigned int connect_ERR_at_time_last_detected_error;
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unsigned long long queries_sent;
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unsigned long long queries_gtid_sync;
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unsigned long long bytes_sent;
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unsigned long long bytes_recv;
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bool shunned_automatic;
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bool shunned_and_kill_all_connections; // if a serious failure is detected, this will cause all connections to die even if the server is just shunned
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bool use_ssl;
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char *comment;
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MySrvConnList *ConnectionsUsed;
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MySrvConnList *ConnectionsFree;
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MySrvC(char *, uint16_t, uint16_t, unsigned int, enum MySerStatus, unsigned int, unsigned int _max_connections, unsigned int _max_replication_lag, unsigned int _use_ssl, unsigned int _max_latency_ms, char *_comment);
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~MySrvC();
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void connect_error(int);
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void shun_and_killall();
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/**
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* Update the maximum number of used connections
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* @return
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* the maximum number of used connections
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*/
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unsigned int update_max_connections_used()
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{
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unsigned int connections_used = ConnectionsUsed->conns_length();
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if (max_connections_used < connections_used)
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max_connections_used = connections_used;
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return max_connections_used;
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}
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};
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class MySrvList { // MySQL Server List
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private:
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MyHGC *myhgc;
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int find_idx(MySrvC *);
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public:
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PtrArray *servers;
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unsigned int cnt() { return servers->len; }
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MySrvList(MyHGC *);
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~MySrvList();
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void add(MySrvC *);
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void remove(MySrvC *);
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MySrvC * idx(unsigned int i) {return (MySrvC *)servers->index(i); }
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};
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class MyHGC { // MySQL Host Group Container
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public:
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unsigned int hid;
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unsigned long long current_time_now;
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uint32_t new_connections_now;
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MySrvList *mysrvs;
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MyHGC(int);
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~MyHGC();
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MySrvC *get_random_MySrvC(char * gtid_uuid, uint64_t gtid_trxid, int max_lag_ms, MySQL_Session *sess);
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};
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class Group_Replication_Info {
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public:
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int writer_hostgroup;
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int backup_writer_hostgroup;
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int reader_hostgroup;
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int offline_hostgroup;
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int max_writers;
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int max_transactions_behind;
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char *comment;
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bool active;
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int writer_is_also_reader;
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bool __active;
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bool need_converge; // this is set to true on LOAD MYSQL SERVERS TO RUNTIME . This ensure that checks wil take an action
|
|
int current_num_writers;
|
|
int current_num_backup_writers;
|
|
int current_num_readers;
|
|
int current_num_offline;
|
|
Group_Replication_Info(int w, int b, int r, int o, int mw, int mtb, bool _a, int _w, char *c);
|
|
bool update(int b, int r, int o, int mw, int mtb, bool _a, int _w, char *c);
|
|
~Group_Replication_Info();
|
|
};
|
|
|
|
class Galera_Info {
|
|
public:
|
|
int writer_hostgroup;
|
|
int backup_writer_hostgroup;
|
|
int reader_hostgroup;
|
|
int offline_hostgroup;
|
|
int max_writers;
|
|
int max_transactions_behind;
|
|
char *comment;
|
|
bool active;
|
|
int writer_is_also_reader;
|
|
bool __active;
|
|
bool need_converge; // this is set to true on LOAD MYSQL SERVERS TO RUNTIME . This ensure that checks wil take an action
|
|
int current_num_writers;
|
|
int current_num_backup_writers;
|
|
int current_num_readers;
|
|
int current_num_offline;
|
|
Galera_Info(int w, int b, int r, int o, int mw, int mtb, bool _a, int _w, char *c);
|
|
bool update(int b, int r, int o, int mw, int mtb, bool _a, int _w, char *c);
|
|
~Galera_Info();
|
|
};
|
|
|
|
class AWS_Aurora_Info {
|
|
public:
|
|
int writer_hostgroup;
|
|
int reader_hostgroup;
|
|
int aurora_port;
|
|
int max_lag_ms;
|
|
int check_interval_ms;
|
|
int check_timeout_ms;
|
|
int writer_is_also_reader;
|
|
int new_reader_weight;
|
|
// TODO
|
|
// add intermediary status value, for example the last check time
|
|
char * domain_name;
|
|
char * comment;
|
|
bool active;
|
|
bool __active;
|
|
AWS_Aurora_Info(int w, int r, int _port, char *_end_addr, int ml, int ci, int ct, bool _a, int wiar, int nrw, char *c);
|
|
bool update(int r, int _port, char *_end_addr, int ml, int ci, int ct, bool _a, int wiar, int nrw, char *c);
|
|
~AWS_Aurora_Info();
|
|
};
|
|
|
|
class MySQL_HostGroups_Manager {
|
|
private:
|
|
SQLite3DB *admindb;
|
|
SQLite3DB *mydb;
|
|
pthread_mutex_t readonly_mutex;
|
|
#ifdef MHM_PTHREAD_MUTEX
|
|
pthread_mutex_t lock;
|
|
#else
|
|
rwlock_t rwlock;
|
|
#endif
|
|
PtrArray *MyHostGroups;
|
|
|
|
MyHGC * MyHGC_find(unsigned int);
|
|
MyHGC * MyHGC_create(unsigned int);
|
|
|
|
void add(MySrvC *, unsigned int);
|
|
void purge_mysql_servers_table();
|
|
void generate_mysql_servers_table(int *_onlyhg=NULL);
|
|
void generate_mysql_replication_hostgroups_table();
|
|
Galera_Info *get_galera_node_info(int hostgroup);
|
|
|
|
SQLite3_result *incoming_replication_hostgroups;
|
|
|
|
void generate_mysql_group_replication_hostgroups_table();
|
|
SQLite3_result *incoming_group_replication_hostgroups;
|
|
|
|
pthread_mutex_t Group_Replication_Info_mutex;
|
|
std::map<int , Group_Replication_Info *> Group_Replication_Info_Map;
|
|
|
|
void generate_mysql_galera_hostgroups_table();
|
|
SQLite3_result *incoming_galera_hostgroups;
|
|
|
|
pthread_mutex_t Galera_Info_mutex;
|
|
std::map<int , Galera_Info *> Galera_Info_Map;
|
|
|
|
void generate_mysql_aws_aurora_hostgroups_table();
|
|
SQLite3_result *incoming_aws_aurora_hostgroups;
|
|
|
|
pthread_mutex_t AWS_Aurora_Info_mutex;
|
|
std::map<int , AWS_Aurora_Info *> AWS_Aurora_Info_Map;
|
|
|
|
std::thread *HGCU_thread;
|
|
|
|
std::thread *GTID_syncer_thread;
|
|
//pthread_t GTID_syncer_thread_id;
|
|
//pthread_t HGCU_thread_id;
|
|
|
|
char rand_del[8];
|
|
pthread_mutex_t mysql_errors_mutex;
|
|
umap_mysql_errors mysql_errors_umap;
|
|
|
|
public:
|
|
pthread_rwlock_t gtid_rwlock;
|
|
std::unordered_map <string, GTID_Server_Data *> gtid_map;
|
|
struct ev_async * gtid_ev_async;
|
|
struct ev_loop * gtid_ev_loop;
|
|
struct ev_timer * gtid_ev_timer;
|
|
bool gtid_missing_nodes;
|
|
struct {
|
|
unsigned int servers_table_version;
|
|
pthread_mutex_t servers_table_version_lock;
|
|
pthread_cond_t servers_table_version_cond;
|
|
unsigned long client_connections_aborted;
|
|
unsigned long client_connections_created;
|
|
int client_connections;
|
|
unsigned long server_connections_aborted;
|
|
unsigned long server_connections_created;
|
|
unsigned long server_connections_delayed;
|
|
unsigned long server_connections_connected;
|
|
unsigned long myconnpoll_get;
|
|
unsigned long myconnpoll_get_ok;
|
|
unsigned long myconnpoll_get_ping;
|
|
unsigned long myconnpoll_push;
|
|
unsigned long myconnpoll_reset;
|
|
unsigned long myconnpoll_destroy;
|
|
unsigned long long autocommit_cnt;
|
|
unsigned long long commit_cnt;
|
|
unsigned long long rollback_cnt;
|
|
unsigned long long autocommit_cnt_filtered;
|
|
unsigned long long commit_cnt_filtered;
|
|
unsigned long long rollback_cnt_filtered;
|
|
unsigned long long backend_change_user;
|
|
unsigned long long backend_init_db;
|
|
unsigned long long backend_set_names;
|
|
unsigned long long frontend_init_db;
|
|
unsigned long long frontend_set_names;
|
|
unsigned long long frontend_use_db;
|
|
unsigned long long access_denied_wrong_password;
|
|
unsigned long long access_denied_max_connections;
|
|
unsigned long long access_denied_max_user_connections;
|
|
unsigned long long select_for_update_or_equivalent;
|
|
} status;
|
|
wqueue<MySQL_Connection *> queue;
|
|
MySQL_HostGroups_Manager();
|
|
~MySQL_HostGroups_Manager();
|
|
void init();
|
|
void wrlock();
|
|
void wrunlock();
|
|
bool server_add(unsigned int hid, char *add, uint16_t p=3306, uint16_t gp=0, unsigned int _weight=1, enum MySerStatus status=MYSQL_SERVER_STATUS_ONLINE, unsigned int _comp=0, unsigned int _max_connections=100, unsigned int _max_replication_lag=0, unsigned int _use_ssl=0, unsigned int _max_latency_ms=0, char *comment=NULL);
|
|
int servers_add(SQLite3_result *resultset); // faster version of server_add
|
|
bool commit();
|
|
|
|
void set_incoming_replication_hostgroups(SQLite3_result *);
|
|
void set_incoming_group_replication_hostgroups(SQLite3_result *);
|
|
void set_incoming_galera_hostgroups(SQLite3_result *);
|
|
void set_incoming_aws_aurora_hostgroups(SQLite3_result *);
|
|
SQLite3_result * execute_query(char *query, char **error);
|
|
SQLite3_result *dump_table_mysql_servers();
|
|
SQLite3_result *dump_table_mysql_replication_hostgroups();
|
|
SQLite3_result *dump_table_mysql_group_replication_hostgroups();
|
|
SQLite3_result *dump_table_mysql_galera_hostgroups();
|
|
SQLite3_result *dump_table_mysql_aws_aurora_hostgroups();
|
|
MyHGC * MyHGC_lookup(unsigned int);
|
|
|
|
void MyConn_add_to_pool(MySQL_Connection *);
|
|
|
|
MySQL_Connection * get_MyConn_from_pool(unsigned int hid, MySQL_Session *sess, bool ff, char * gtid_uuid, uint64_t gtid_trxid, int max_lag_ms);
|
|
|
|
void drop_all_idle_connections();
|
|
int get_multiple_idle_connections(int, unsigned long long, MySQL_Connection **, int);
|
|
SQLite3_result * SQL3_Connection_Pool(bool _reset);
|
|
SQLite3_result * SQL3_Free_Connections();
|
|
|
|
void push_MyConn_to_pool(MySQL_Connection *, bool _lock=true);
|
|
void push_MyConn_to_pool_array(MySQL_Connection **, unsigned int);
|
|
void destroy_MyConn_from_pool(MySQL_Connection *, bool _lock=true);
|
|
|
|
void replication_lag_action(int, char*, unsigned int, int);
|
|
void read_only_action(char *hostname, int port, int read_only);
|
|
unsigned int get_servers_table_version();
|
|
void wait_servers_table_version(unsigned, unsigned);
|
|
bool shun_and_killall(char *hostname, int port);
|
|
void set_server_current_latency_us(char *hostname, int port, unsigned int _current_latency_us);
|
|
unsigned long long Get_Memory_Stats();
|
|
|
|
void update_group_replication_set_offline(char *_hostname, int _port, int _writer_hostgroup, char *error);
|
|
void update_group_replication_set_read_only(char *_hostname, int _port, int _writer_hostgroup, char *error);
|
|
void update_group_replication_set_writer(char *_hostname, int _port, int _writer_hostgroup);
|
|
void converge_group_replication_config(int _writer_hostgroup);
|
|
|
|
void update_galera_set_offline(char *_hostname, int _port, int _writer_hostgroup, char *error);
|
|
void update_galera_set_read_only(char *_hostname, int _port, int _writer_hostgroup, char *error);
|
|
void update_galera_set_writer(char *_hostname, int _port, int _writer_hostgroup);
|
|
void converge_galera_config(int _writer_hostgroup);
|
|
|
|
// FIXME : add action functions for AWS Aurora
|
|
//void aws_aurora_replication_lag_action(int _whid, int _rhid, char *address, unsigned int port, float current_replication_lag, bool enable, bool verbose=true);
|
|
//bool aws_aurora_replication_lag_action(int _whid, int _rhid, char *address, unsigned int port, unsigned int current_replication_lag_us, bool enable, bool is_writer, bool verbose=true);
|
|
//void update_aws_aurora_set_writer(int _whid, int _rhid, char *address, unsigned int port, bool verbose=true);
|
|
//void update_aws_aurora_set_reader(int _whid, int _rhid, char *_hostname, int _port);
|
|
bool aws_aurora_replication_lag_action(int _whid, int _rhid, char *server_id, float current_replication_lag_ms, bool enable, bool is_writer, bool verbose=true);
|
|
void update_aws_aurora_set_writer(int _whid, int _rhid, char *server_id, bool verbose=true);
|
|
void update_aws_aurora_set_reader(int _whid, int _rhid, char *server_id);
|
|
|
|
SQLite3_result * get_stats_mysql_gtid_executed();
|
|
void generate_mysql_gtid_executed_tables();
|
|
bool gtid_exists(MySrvC *mysrvc, char * gtid_uuid, uint64_t gtid_trxid);
|
|
|
|
SQLite3_result *SQL3_Get_ConnPool_Stats();
|
|
void increase_reset_counter();
|
|
|
|
void add_mysql_errors(int hostgroup, char *hostname, int port, char *username, char *address, char *schemaname, int err_no, char *last_error);
|
|
SQLite3_result *get_mysql_errors(bool);
|
|
|
|
void shutdown();
|
|
};
|
|
|
|
#endif /* __CLASS_MYSQL_HOSTGROUPS_MANAGER_H */
|