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Add a counter for number of alive nodes within a given cluster pool

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This commit is contained in:
Jon Siwek 2018-05-24 14:33:35 -05:00
parent 95ea84e60e
commit 45178f3051
1 changed files with 20 additions and 2 deletions
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18
scripts/base/frameworks/cluster/pools.bro
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@ -54,6 +54,8 @@ export {
## index of *node_list* that will be eligible to receive work (if it's
## alive at the time of next request).
rr_key_seq: RoundRobinTable &default = RoundRobinTable();
## Number of pool nodes that are currently alive.
alive_count: count &default = 0;
};
## The specification for :bro:see:`Cluster::proxy_pool`.
@ -275,6 +277,10 @@ function init_pool_node(pool: Pool, name: string): bool
$alive=Cluster::node == name);
pool$nodes[name] = pn;
pool$node_list[|pool$node_list|] = pn;
if ( pn$alive )
++pool$alive_count;
loop = F;
}
}
@ -288,7 +294,13 @@ function mark_pool_node_alive(pool: Pool, name: string): bool
return F;
local pn = pool$nodes[name];
if ( ! pn$alive )
{
pn$alive = T;
++pool$alive_count;
}
HashHRW::add_site(pool$hrw_pool, HashHRW::Site($id=pn$site_id, $user_data=pn));
return T;
}
@ -299,7 +311,13 @@ function mark_pool_node_dead(pool: Pool, name: string): bool
return F;
local pn = pool$nodes[name];
if ( pn$alive )
{
pn$alive = F;
--pool$alive_count;
}
HashHRW::rem_site(pool$hrw_pool, HashHRW::Site($id=pn$site_id, $user_data=pn));
return T;
}