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Fixed some missing return values and added database change routing to right shard.

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This commit is contained in:
Markus Makela
2014-12-12 16:25:19 +02:00
parent a7cc40dc6a
commit 175756c478
1 changed files with 19 additions and 7 deletions
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26
server/modules/routing/dbshard/dbshard.c
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@ -1887,7 +1887,19 @@ static int routeQuery(
* eventually to master
*/
if((tname = get_shard_target_name(inst,router_cli_ses,querybuf)) != NULL)
if (packet_type == MYSQL_COM_INIT_DB)
{
char dbname[MYSQL_DATABASE_MAXLEN+1];
unsigned int plen = gw_mysql_get_byte3((unsigned char*)querybuf->start) - 1;
memcpy(dbname,querybuf->start + 5,plen);
dbname[plen] = '\0';
tname = hashtable_fetch(inst->dbnames_hash,dbname);
if(tname)
{
route_target = TARGET_NAMED_SERVER;
}
}
else if((tname = get_shard_target_name(inst,router_cli_ses,querybuf)) != NULL)
{
bool shard_ok = check_shard_status(inst,tname);
@ -1930,17 +1942,16 @@ static int routeQuery(
GWBUF *errbuff;
update_dbnames_hash(inst->servers,inst->dbnames_hash);
tname = get_shard_target_name(inst,router_cli_ses,querybuf);
if(tname == NULL &&
router_cli_ses->rses_mysql_session->db[0] == '\0')
{
/**
* No current database or databases in query.
* No current database or databases in query, route to all.
*/
route_target = TARGET_ALL;
errbuff = modutil_create_mysql_err_msg(1,0,1046,
"3D000",
"No database selected");
}
else
{
@ -1948,14 +1959,15 @@ static int routeQuery(
/**
* Bad shard status
*/
sprintf(errstr,"Unknown database '%s'",
router_cli_ses->rses_mysql_session->db);
errbuff = modutil_create_mysql_err_msg(1,0,1049,
"42000",
errstr);
gwbuf_free(querybuf);
return router_cli_ses->rses_client_dcb->func.write(router_cli_ses->rses_client_dcb,errbuff);
}
router_cli_ses->rses_client_dcb->func.write(router_cli_ses->rses_client_dcb,errbuff);
}