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Fixed client session termination due to wrong packet sequence numbers.

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This commit is contained in:
Markus Makela
2014-12-16 14:33:05 +02:00
parent ef94b7ee54
commit e4042019e1
1 changed files with 23 additions and 17 deletions
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40
server/modules/routing/dbshard/dbshard.c
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@ -1877,6 +1877,7 @@ static int routeQuery(
route_target_t route_target = TARGET_UNDEFINED;
bool succp = false;
char* tname = NULL;
int i;
CHK_CLIENT_RSES(router_cli_ses);
@ -2064,7 +2065,6 @@ static int routeQuery(
*/
backend_ref_t* backend = NULL;
DCB* backend_dcb = NULL;
int i;
update_dbnames_hash(inst,inst->servers,inst->dbnames_hash);
@ -2156,8 +2156,9 @@ static int routeQuery(
update_dbnames_hash(inst,inst->servers,inst->dbnames_hash);
tname = get_shard_target_name(inst,router_cli_ses,querybuf,qtype);
if((tname == NULL &&
router_cli_ses->rses_mysql_session->db[0] == '\0') ||
if( (tname == NULL &&
packet_type != MYSQL_COM_INIT_DB &&
router_cli_ses->rses_mysql_session->db[0] == '\0') ||
(packet_type == MYSQL_COM_INIT_DB && change_successful) ||
packet_type == MYSQL_COM_FIELD_LIST ||
(router_cli_ses->rses_mysql_session->db[0] != '\0' &&
@ -2171,23 +2172,28 @@ static int routeQuery(
}
else
{
{
if(!change_successful)
{
/**
* Bad shard status. The changing of the database
* was not successful and the error message was already sent.
*/
ret = 1;
}
else
{
/** Something else went wrong, terminate connection */
ret = 0;
}
/**
* 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);
goto retblock;
}
}
if (TARGET_IS_ALL(route_target))
{
/**
@ -4581,7 +4587,7 @@ static bool change_current_db(
reply_error:
{
GWBUF* errbuf;
errbuf = modutil_create_mysql_err_msg(2, 0, 1049, "42000", fail_str);
errbuf = modutil_create_mysql_err_msg(1, 0, 1049, "42000", fail_str);
free(fail_str);
if (errbuf == NULL)