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Addition of cache for server responses. This allows cached responses to be sent

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if there is no master avaiable when MaxScale starts
This commit is contained in:
Mark Riddoch
2015-01-28 08:44:13 +00:00
parent b758dc1a4a
commit 0a9509168b
5 changed files with 178 additions and 1 deletions
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20
server/modules/routing/binlog/blr.c
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@ -340,6 +340,24 @@ int i;
inst->slaves = NULL;
inst->next = NULL;
/*
* Read any cached response messages
*/
inst->saved_master.server_id = blr_cache_read_response(inst, "serverid");
inst->saved_master.heartbeat = blr_cache_read_response(inst, "heartbeat");
inst->saved_master.chksum1 = blr_cache_read_response(inst, "chksum1");
inst->saved_master.chksum2 = blr_cache_read_response(inst, "chksum2");
inst->saved_master.gtid_mode = blr_cache_read_response(inst, "gtidmode");
inst->saved_master.uuid = blr_cache_read_response(inst, "uuid");
inst->saved_master.setslaveuuid = blr_cache_read_response(inst, "ssuuid");
inst->saved_master.setnames = blr_cache_read_response(inst, "setnames");
inst->saved_master.utf8 = blr_cache_read_response(inst, "utf8");
inst->saved_master.select1 = blr_cache_read_response(inst, "select1");
inst->saved_master.selectver = blr_cache_read_response(inst, "selectver");
inst->saved_master.selectvercom = blr_cache_read_response(inst, "selectvercom");
inst->saved_master.selecthostname = blr_cache_read_response(inst, "selecthostname");
inst->saved_master.map = blr_cache_read_response(inst, "map");
/*
* Initialise the binlog file and position
*/
@ -702,6 +720,8 @@ struct tm tm;
router_inst->stats.n_binlogs_ses);
dcb_printf(dcb, "\tTotal no. of binlog events received: %u\n",
router_inst->stats.n_binlogs);
dcb_printf(dcb, "\tNo. of bad CRC received from master: %u\n",
router_inst->stats.n_badcrc);
minno = router_inst->stats.minno - 1;
if (minno == -1)
minno = 30;