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Change of distribution mechanism to use fake events exclusively and avoid

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complex locking mechanism and blocking the master DCB eent processign thread

Addition of shared BLFILE mechanism to reduce open/close overhead
This commit is contained in:
Mark Riddoch
2014-10-03 14:33:28 +01:00
parent 501d0bcae6
commit fd1154b944
5 changed files with 205 additions and 119 deletions
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8
server/modules/routing/binlog/blr.c
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@ -172,6 +172,8 @@ int i;
inst->service = service;
spinlock_init(&inst->lock);
inst->files = NULL;
spinlock_init(&inst->fileslock);
inst->binlog_fd = -1;
@ -379,6 +381,7 @@ ROUTER_SLAVE *slave;
spinlock_init(&slave->catch_lock);
slave->dcb = session->client;
slave->router = inst;
slave->file = NULL;
/**
* Add this session to the list of active sessions.
@ -498,6 +501,9 @@ ROUTER_SLAVE *slave = (ROUTER_SLAVE *)router_session;
*/
slave->state = BLRS_UNREGISTERED;
if (slave->file)
blr_close_binlog(router, slave->file);
/* Unlock */
rses_end_locked_router_action(slave);
}
@ -719,8 +725,6 @@ struct tm tm;
session->stats.minavgs[minno], min5, min10,
min15, min30);
dcb_printf(dcb, "\t\tNo. flow control: %u\n", session->stats.n_flows);
dcb_printf(dcb, "\t\tNo. catchup NRs: %u\n", session->stats.n_catchupnr);
dcb_printf(dcb, "\t\tNo. already up to date: %u\n", session->stats.n_alreadyupd);
dcb_printf(dcb, "\t\tNo. up to date: %u\n", session->stats.n_upd);
dcb_printf(dcb, "\t\tNo. of drained cbs %u\n", session->stats.n_dcb);
dcb_printf(dcb, "\t\tNo. of low water cbs N/A %u\n", session->stats.n_cbna);