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Rename member variables

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Renamed and cleaned up schemarouter member variables. Removed unused
variables.
This commit is contained in:
Markus Mäkelä 2017-03-27 09:48:27 +03:00
parent ac641e0f22
commit 39903e40b7
4 changed files with 302 additions and 338 deletions
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70
server/modules/routing/schemarouter/schemarouterinstance.cc
View File

@ -47,23 +47,23 @@ SchemaRouter::SchemaRouter(SERVICE *service, char **options):
MXS_CONFIG_PARAMETER* param;
/** Add default system databases to ignore */
this->ignored_dbs.insert("mysql");
this->ignored_dbs.insert("information_schema");
this->ignored_dbs.insert("performance_schema");
this->service = service;
this->stats.longest_sescmd = 0;
this->stats.n_hist_exceeded = 0;
this->stats.n_queries = 0;
this->stats.n_sescmd = 0;
this->stats.ses_longest = 0;
this->stats.ses_shortest = (double)((unsigned long)(~0));
spinlock_init(&this->lock);
this->m_ignored_dbs.insert("mysql");
this->m_ignored_dbs.insert("information_schema");
this->m_ignored_dbs.insert("performance_schema");
this->m_service = service;
this->m_stats.longest_sescmd = 0;
this->m_stats.n_hist_exceeded = 0;
this->m_stats.n_queries = 0;
this->m_stats.n_sescmd = 0;
this->m_stats.ses_longest = 0;
this->m_stats.ses_shortest = (double)((unsigned long)(~0));
spinlock_init(&this->m_lock);
conf = service->svc_config_param;
this->schemarouter_config.refresh_databases = config_get_bool(conf, "refresh_databases");
this->schemarouter_config.refresh_min_interval = config_get_integer(conf, "refresh_interval");
this->schemarouter_config.debug = config_get_bool(conf, "debug");
this->m_config.refresh_databases = config_get_bool(conf, "refresh_databases");
this->m_config.refresh_min_interval = config_get_integer(conf, "refresh_interval");
this->m_config.debug = config_get_bool(conf, "debug");
if ((config_get_param(conf, "auth_all_servers")) == NULL)
{
@ -96,8 +96,8 @@ SchemaRouter::SchemaRouter(SERVICE *service, char **options):
throw std::bad_alloc();
}
this->ignore_regex = re;
this->ignore_match_data = match_data;
this->m_ignore_regex = re;
this->m_ignore_match_data = match_data;
}
if ((param = config_get_param(conf, "ignore_databases")))
@ -111,7 +111,7 @@ SchemaRouter::SchemaRouter(SERVICE *service, char **options):
while (tok)
{
this->ignored_dbs.insert(tok);
this->m_ignored_dbs.insert(tok);
tok = strtok_r(NULL, sep, &sptr);
}
}
@ -142,15 +142,15 @@ SchemaRouter::SchemaRouter(SERVICE *service, char **options):
}
else if (strcmp(options[i], "refresh_databases") == 0)
{
this->schemarouter_config.refresh_databases = config_truth_value(value);
this->m_config.refresh_databases = config_truth_value(value);
}
else if (strcmp(options[i], "refresh_interval") == 0)
{
this->schemarouter_config.refresh_min_interval = atof(value);
this->m_config.refresh_min_interval = atof(value);
}
else if (strcmp(options[i], "debug") == 0)
{
this->schemarouter_config.debug = config_truth_value(value);
this->m_config.debug = config_truth_value(value);
}
else
{
@ -168,14 +168,14 @@ SchemaRouter::SchemaRouter(SERVICE *service, char **options):
SchemaRouter::~SchemaRouter()
{
if (this->ignore_regex)
if (this->m_ignore_regex)
{
pcre2_code_free(this->ignore_regex);
pcre2_code_free(this->m_ignore_regex);
}
if (this->ignore_match_data)
if (this->m_ignore_match_data)
{
pcre2_match_data_free(this->ignore_match_data);
pcre2_match_data_free(this->m_ignore_match_data);
}
}
@ -191,32 +191,32 @@ SchemaRouterSession* SchemaRouter::newSession(MXS_SESSION* pSession)
void SchemaRouter::diagnostics(DCB* dcb)
{
double sescmd_pct = this->stats.n_sescmd != 0 ?
100.0 * ((double)this->stats.n_sescmd / (double)this->stats.n_queries) :
double sescmd_pct = this->m_stats.n_sescmd != 0 ?
100.0 * ((double)this->m_stats.n_sescmd / (double)this->m_stats.n_queries) :
0.0;
/** Session command statistics */
dcb_printf(dcb, "\n\33[1;4mSession Commands\33[0m\n");
dcb_printf(dcb, "Total number of queries: %d\n",
this->stats.n_queries);
this->m_stats.n_queries);
dcb_printf(dcb, "Percentage of session commands: %.2f\n",
sescmd_pct);
dcb_printf(dcb, "Longest chain of stored session commands: %d\n",
this->stats.longest_sescmd);
this->m_stats.longest_sescmd);
dcb_printf(dcb, "Session command history limit exceeded: %d times\n",
this->stats.n_hist_exceeded);
this->m_stats.n_hist_exceeded);
/** Session time statistics */
if (this->stats.sessions > 0)
if (this->m_stats.sessions > 0)
{
dcb_printf(dcb, "\n\33[1;4mSession Time Statistics\33[0m\n");
dcb_printf(dcb, "Longest session: %.2lf seconds\n", this->stats.ses_longest);
dcb_printf(dcb, "Shortest session: %.2lf seconds\n", this->stats.ses_shortest);
dcb_printf(dcb, "Average session length: %.2lf seconds\n", this->stats.ses_average);
dcb_printf(dcb, "Longest session: %.2lf seconds\n", this->m_stats.ses_longest);
dcb_printf(dcb, "Shortest session: %.2lf seconds\n", this->m_stats.ses_shortest);
dcb_printf(dcb, "Average session length: %.2lf seconds\n", this->m_stats.ses_average);
}
dcb_printf(dcb, "Shard map cache hits: %d\n", this->stats.shmap_cache_hit);
dcb_printf(dcb, "Shard map cache misses: %d\n", this->stats.shmap_cache_miss);
dcb_printf(dcb, "Shard map cache hits: %d\n", this->m_stats.shmap_cache_hit);
dcb_printf(dcb, "Shard map cache misses: %d\n", this->m_stats.shmap_cache_miss);
dcb_printf(dcb, "\n");
}

25
server/modules/routing/schemarouter/schemarouterinstance.hh
View File

@ -42,20 +42,19 @@ public:
protected:
friend class SchemaRouterSession;
schemarouter_config_t schemarouter_config; /*< expanded config info from SERVICE */
ShardManager shard_manager; /*< Shard maps hashed by user name */
SERVICE* service; /*< Pointer to service */
SPINLOCK lock; /*< Lock for the instance data */
int schemarouter_version; /*< version number for router's config */
ROUTER_STATS stats; /*< Statistics for this router */
set<string> ignored_dbs; /*< List of databases to ignore when the
* database mapping finds multiple servers
* with the same database */
pcre2_code* ignore_regex; /*< Databases matching this regex will
* not cause the session to be terminated
* if they are found on more than one server. */
pcre2_match_data* ignore_match_data;
schemarouter_config_t m_config; /*< expanded config info from SERVICE */
ShardManager m_shard_manager; /*< Shard maps hashed by user name */
SERVICE* m_service; /*< Pointer to service */
SPINLOCK m_lock; /*< Lock for the instance data */
ROUTER_STATS m_stats; /*< Statistics for this router */
set<string> m_ignored_dbs; /*< List of databases to ignore when the
* database mapping finds multiple servers
* with the same database */
pcre2_code* m_ignore_regex; /*< Databases matching this regex will
* not cause the session to be terminated
* if they are found on more than one server. */
pcre2_match_data* m_ignore_match_data;
SchemaRouter(SERVICE *service, char **options);
};

465
server/modules/routing/schemarouter/schemaroutersession.cc
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File diff suppressed because it is too large Load Diff

80
server/modules/routing/schemarouter/schemaroutersession.hh
View File

@ -56,12 +56,12 @@ typedef enum bref_state
BREF_DB_MAPPED = 0x10
} bref_state_t;
#define BREF_IS_NOT_USED(s) ((s)->bref_state & ~BREF_IN_USE)
#define BREF_IS_IN_USE(s) ((s)->bref_state & BREF_IN_USE)
#define BREF_IS_WAITING_RESULT(s) ((s)->bref_num_result_wait > 0)
#define BREF_IS_QUERY_ACTIVE(s) ((s)->bref_state & BREF_QUERY_ACTIVE)
#define BREF_IS_CLOSED(s) ((s)->bref_state & BREF_CLOSED)
#define BREF_IS_MAPPED(s) ((s)->bref_mapped)
#define BREF_IS_NOT_USED(s) ((s)->state & ~BREF_IN_USE)
#define BREF_IS_IN_USE(s) ((s)->state & BREF_IN_USE)
#define BREF_IS_WAITING_RESULT(s) ((s)->num_result_wait > 0)
#define BREF_IS_QUERY_ACTIVE(s) ((s)->state & BREF_QUERY_ACTIVE)
#define BREF_IS_CLOSED(s) ((s)->state & BREF_CLOSED)
#define BREF_IS_MAPPED(s) ((s)->mapped)
#define SCHEMA_ERR_DUPLICATEDB 5000
#define SCHEMA_ERRSTR_DUPLICATEDB "DUPDB"
@ -94,13 +94,12 @@ typedef struct backend_ref_st
{
int n_mapping_eof;
GWBUF* map_queue;
SERVER_REF* bref_backend; /*< Backend server */
DCB* bref_dcb; /*< Backend DCB */
int bref_state; /*< State of the backend */
bool bref_mapped; /*< Whether the backend has been mapped */
bool last_sescmd_replied;
int bref_num_result_wait; /*< Number of not yet received results */
GWBUF* bref_pending_cmd; /*< Pending commands */
SERVER_REF* backend; /**< Backend server */
DCB* dcb; /**< Backend DCB */
int state; /**< State of the backend */
bool mapped; /**< Whether the backend has been mapped */
int num_result_wait; /**< Number of not yet received results */
GWBUF* pending_cmd; /**< Pending commands */
SessionCommandList session_commands; /**< List of session commands that are
* to be executed on this backend server */
@ -157,42 +156,37 @@ public:
mxs_error_action_t action,
bool* pSuccess);
private:
bool closed; /*< true when closeSession is called */
DCB* rses_client_dcb;
MYSQL_session* rses_mysql_session; /*< Session client data (username, password, SHA1). */
backend_ref_t* rses_backend_ref; /*< Pointer to backend reference array */
schemarouter_config_t rses_config; /*< Copied config info from router instance */
int rses_nbackends; /*< Number of backends */
SchemaRouter& m_router; /*< The router instance */
Shard shardmap; /**< Database hash containing names of the databases
* mapped to the servers that contain them */
string connect_db; /*< Database the user was trying to connect to */
string current_db; /*< Current active database */
int state; /*< Initialization state bitmask */
GWBUF* queue; /*< Query that was received before the session was ready */
ROUTER_STATS stats; /*< Statistics for this router */
uint64_t sent_sescmd; /**< The latest session command being executed */
uint64_t replied_sescmd; /**< The last session command reply that was sent to the client */
bool m_closed; /**< True if session closed */
DCB* m_client; /**< The client DCB */
MYSQL_session* m_mysql_session; /**< Session client data (username, password, SHA1). */
backend_ref_t* m_backends; /**< Pointer to backend reference array */
schemarouter_config_t m_config; /**< Copied config info from router instance */
int m_backend_count; /**< Number of backends */
SchemaRouter& m_router; /**< The router instance */
Shard m_shard; /**< Database to server mapping */
string m_connect_db; /**< Database the user was trying to connect to */
string m_current_db; /**< Current active database */
int m_state; /**< Initialization state bitmask */
GWBUF* m_queue; /**< Query that was received before the session was ready */
ROUTER_STATS m_stats; /**< Statistics for this router */
uint64_t m_sent_sescmd; /**< The latest session command being executed */
uint64_t m_replied_sescmd; /**< The last session command reply that was sent to the client */
/** Internal functions */
void synchronize_shard_map();
int inspect_backend_mapping_states(backend_ref_t *bref, GWBUF** wbuf);
bool route_session_write(GWBUF* querybuf, uint8_t command);
bool handle_error_new_connection(DCB* backend_dcb, GWBUF* errmsg);
void handle_error_reply_client(DCB* backend_dcb, GWBUF* errmsg);
int process_show_shards();
bool handle_default_db();
void route_queued_query();
bool get_shard_dcb(DCB** dcb, char* name);
SERVER* get_shard_target(GWBUF* buffer, uint32_t qtype);
backend_ref_t* get_bref_from_dcb(DCB* dcb);
bool execute_sescmd_in_backend(backend_ref_t* backend_ref);
bool get_shard_dcb(DCB** dcb, char* name);
bool handle_default_db();
bool handle_error_new_connection(DCB* backend_dcb, GWBUF* errmsg);
bool have_servers();
bool route_session_write(GWBUF* querybuf, uint8_t command);
bool send_database_list();
int gen_databaselist();
int inspect_backend_mapping_states(backend_ref_t *bref, GWBUF** wbuf);
int process_show_shards();
showdb_response_t parse_showdb_response(backend_ref_t* bref, GWBUF** buffer);
bool execute_sescmd_in_backend(backend_ref_t* backend_ref);
void handle_error_reply_client(DCB* backend_dcb, GWBUF* errmsg);
void route_queued_query();
void synchronize_shard_map();
};