hcq/MaxScale
1
0
Fork 0
Code Issues Pull Requests Actions Packages Projects Releases Wiki Activity

Added more debug logging and fixed the service resources being overwritted even though they were already allocated.

Browse Source
This commit is contained in:
Markus Makela
2015-02-10 14:28:49 +02:00
parent d9139bb436
commit 36363b09a1
2 changed files with 57 additions and 13 deletions
Download Patch File Download Diff File Expand all files Collapse all files

65
server/modules/routing/dbshard/dbshard.c
View File

@ -319,6 +319,10 @@ int gen_databaselist(ROUTER_INSTANCE* inst, ROUTER_CLIENT_SES* session)
clone = gwbuf_clone(buffer);
dcb = session->rses_backend_ref[i].bref_dcb;
rval = dcb->func.write(dcb,clone);
skygw_log_write(LOGFILE_DEBUG,"dbshard: Wrote SHOW DATABASES to %s for session %p: returned %d",
session->rses_backend_ref[i].bref_backend->backend_server->unique_name,
session->rses_client_dcb->session,
rval);
}
}
@ -1644,17 +1648,27 @@ static int routeQuery(
if(!rses_is_closed && router_cli_ses->init != INIT_READY)
{
gwbuf_make_contiguous(querybuf);
char* querystr = modutil_get_SQL(querybuf);
skygw_log_write(LOGFILE_DEBUG,"dbshard: Storing query for session %p: %s",
router_cli_ses->rses_client_dcb->session,
querystr);
free(querystr);
gwbuf_make_contiguous(querybuf);
GWBUF* ptr = router_cli_ses->queue;
while(ptr && ptr->next)
{
ptr = ptr->next;
}
if(ptr == NULL)
{
router_cli_ses->queue = querybuf;
}
else
{
ptr->next = querybuf;
}
return 1;
}
packet = GWBUF_DATA(querybuf);
@ -2209,7 +2223,9 @@ static void clientReply (
goto lock_failed;
}
bref = get_bref_from_dcb(router_cli_ses, backend_dcb);
skygw_log_write(LOGFILE_DEBUG,"dbshard: Received reply from %s for session %p",
bref->bref_backend->backend_server->unique_name,
router_cli_ses->rses_client_dcb->session);
#if !defined(FOR_BUG548_FIX_ONLY)
/** This makes the issue becoming visible in poll.c */
if (bref == NULL)
@ -2222,7 +2238,7 @@ static void clientReply (
if(router_cli_ses->init & INIT_MAPPING)
{
bool mapped = true;
bool mapped = true, logged = false;
int i;
backend_ref_t* bkrf = router_cli_ses->rses_backend_ref;
@ -2235,15 +2251,22 @@ static void clientReply (
parse_showdb_response(router_cli_ses,
router_cli_ses->rses_backend_ref[i].bref_backend->backend_server->unique_name,
writebuf);
skygw_log_write_flush(LOGFILE_DEBUG,"session [%p] server '%s' databases mapped.",
router_cli_ses,
bref->bref_backend->backend_server->unique_name);
skygw_log_write(LOGFILE_DEBUG,"dbshard: Received SHOW DATABASES reply from %s for session %p",
router_cli_ses->rses_backend_ref[i].bref_backend->backend_server->unique_name,
router_cli_ses->rses_client_dcb->session);
}
if(BREF_IS_IN_USE(&bkrf[i]) &&
!BREF_IS_MAPPED(&bkrf[i]))
{
mapped = false;
mapped = false;
if(!logged)
{
skygw_log_write(LOGFILE_DEBUG,"dbshard: Still waiting for reply to SHOW DATABASES from %s for session %p",
bkrf[i].bref_backend->backend_server->unique_name,
router_cli_ses->rses_client_dcb->session);
logged = true;
}
}
}
@ -2254,9 +2277,9 @@ static void clientReply (
/*
* Check if the session is reconnecting with a database name
* that is not in the hashtable. If the database is not found
* then close the session.
* then close the session.
*/
* */
router_cli_ses->init &= ~INIT_MAPPING;
if(router_cli_ses->init & INIT_USE_DB)
@ -2272,6 +2295,7 @@ static void clientReply (
if(router_cli_ses->queue)
gwbuf_free(router_cli_ses->queue);
rses_end_locked_router_action(router_cli_ses);
print_error_packet(router_cli_ses, writebuf, backend_dcb);
return;
}
@ -2290,6 +2314,7 @@ static void clientReply (
if(router_cli_ses->queue)
gwbuf_free(router_cli_ses->queue);
rses_end_locked_router_action(router_cli_ses);
print_error_packet(router_cli_ses, writebuf, backend_dcb);
return;
}
@ -2302,7 +2327,9 @@ static void clientReply (
if(get_shard_dcb(&dcb,router_cli_ses,target))
{
dcb->func.write(dcb,buffer);
dcb->func.write(dcb,buffer);
skygw_log_write(LOGFILE_DEBUG,"dbshard: USE <db> sent to %s for session %p",
target,router_cli_ses->rses_client_dcb->session);
}
else
{
@ -2320,8 +2347,14 @@ static void clientReply (
{
GWBUF* tmp = router_cli_ses->queue;
router_cli_ses->queue = router_cli_ses->queue->next;
tmp->next = NULL;
tmp->next = NULL;
char* querystr = modutil_get_SQL(tmp);
skygw_log_write(LOGFILE_DEBUG,"dbshard: Sending queued buffer for session %p: %s",
router_cli_ses->rses_client_dcb->session,
querystr);
poll_add_epollin_event_to_dcb(router_cli_ses->dcb_route,tmp);
free(querystr);
}
skygw_log_write_flush(LOGFILE_DEBUG,"session [%p] database map finished.",
router_cli_ses);
@ -2337,13 +2370,21 @@ static void clientReply (
GWBUF* tmp = router_cli_ses->queue;
router_cli_ses->queue = router_cli_ses->queue->next;
tmp->next = NULL;
char* querystr = modutil_get_SQL(tmp);
skygw_log_write(LOGFILE_DEBUG,"dbshard: Sending queued buffer for session %p: %s",
router_cli_ses->rses_client_dcb->session,
querystr);
poll_add_epollin_event_to_dcb(router_cli_ses->dcb_route,tmp);
free(querystr);
}
if(router_cli_ses->init & INIT_USE_DB)
{
skygw_log_write(LOGFILE_DEBUG,"dbshard: Reply to USE <db> received for session %p",
router_cli_ses->rses_client_dcb->session);
router_cli_ses->init &= ~INIT_USE_DB;
strcpy(router_cli_ses->rses_mysql_session->db,router_cli_ses->connect_db);
ss_dassert(router_cli_ses->init == INIT_READY);
rses_end_locked_router_action(router_cli_ses);
return;
}