[tarantool-patches] [PATCH v2 2/3] box: add replication_sync_timeout
Vladimir Davydov
vdavydov.dev at gmail.com
Thu Aug 30 19:11:36 MSK 2018
On Thu, Aug 30, 2018 at 05:11:13PM +0300, Olga Arkhangelskaia wrote:
> diff --git a/src/box/lua/load_cfg.lua b/src/box/lua/load_cfg.lua
> index f803d8987..213904458 100644
> --- a/src/box/lua/load_cfg.lua
> +++ b/src/box/lua/load_cfg.lua
> @@ -200,6 +202,7 @@ local dynamic_cfg = {
> replication_connect_timeout = private.cfg_set_replication_connect_timeout,
> replication_connect_quorum = private.cfg_set_replication_connect_quorum,
> replication_sync_lag = private.cfg_set_replication_sync_lag,
> + replication_sync_timeout = private.cfg_set_replication_sync_timeout,
^^^
Nit: three extra spaces.
> instance_uuid = function()
> if box.cfg.instance_uuid ~= box.info.uuid then
> box.error(box.error.CFG, 'instance_uuid',
> diff --git a/src/box/replication.cc b/src/box/replication.cc
> index 861ce34ea..be58b0225 100644
> --- a/src/box/replication.cc
> +++ b/src/box/replication.cc
> @@ -49,7 +49,7 @@ double replication_timeout = 1.0; /* seconds */
> double replication_connect_timeout = 30.0; /* seconds */
> int replication_connect_quorum = REPLICATION_CONNECT_QUORUM_ALL;
> double replication_sync_lag = 10.0; /* seconds */
> -
> +double replication_sync_timeout = 300.0; /* seconds */
> struct replicaset replicaset;
Nit: an empty line was here for a reason - it separated configuration
options from replicaset definition. Please leave it.
>
> static int
> @@ -673,12 +673,20 @@ replicaset_sync(void)
>
> /*
> * Wait until all connected replicas synchronize up to
> - * replication_sync_lag
> + * replication_sync_lag or return on replication_sync_timeout
> */
> + double start_time = ev_monotonic_now(loop());
> + double deadline = start_time + replication_sync_timeout;
> while (replicaset.applier.synced < quorum &&
> replicaset.applier.connected +
> - replicaset.applier.loading >= quorum)
> - fiber_cond_wait(&replicaset.applier.cond);
> + replicaset.applier.loading >= quorum) {
> + if (fiber_cond_wait_deadline(&replicaset.applier.cond,
> + deadline) != 0) {
> + say_crit("replication_sync_timeout fired, entering orphan mode");
This message is not needed, because "entering orphan mode" is printed
right below in this case.
> + break;
> + }
> +
> + }
>
> if (replicaset.applier.synced < quorum) {
> /*
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