forked from vitalif/vitastor
Implement "primary affinity tags"
parent
7c2379d458
commit
cf03b9c84d
51
mon/mon.js
51
mon/mon.js
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@ -160,6 +160,8 @@ const etcd_tree = {
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root_node?: 'rack1',
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// restrict pool to OSDs having all of these tags
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osd_tags?: 'nvme' | [ 'nvme', ... ],
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// prefer to put primary on OSD with these tags
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primary_affinity_tags?: 'nvme' | [ 'nvme', ... ],
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},
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...
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}, */
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@ -903,27 +905,39 @@ class Mon
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return this.seed + 2147483648;
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}
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pick_primary(pool_id, osd_set, up_osds)
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pick_primary(pool_id, osd_set, up_osds, aff_osds)
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{
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let alive_set;
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if (this.state.config.pools[pool_id].scheme === 'replicated')
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alive_set = osd_set.filter(osd_num => osd_num && up_osds[osd_num]);
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{
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// Prefer "affinity" OSDs
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alive_set = osd_set.filter(osd_num => osd_num && aff_osds[osd_num]);
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if (!alive_set.length)
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alive_set = osd_set.filter(osd_num => osd_num && up_osds[osd_num]);
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}
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else
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{
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// Prefer data OSDs for EC because they can actually read something without an additional network hop
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const pg_data_size = (this.state.config.pools[pool_id].pg_size||0) -
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(this.state.config.pools[pool_id].parity_chunks||0);
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alive_set = osd_set.slice(0, pg_data_size).filter(osd_num => osd_num && up_osds[osd_num]);
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alive_set = osd_set.slice(0, pg_data_size).filter(osd_num => osd_num && aff_osds[osd_num]);
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if (!alive_set.length)
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alive_set = osd_set.filter(osd_num => osd_num && up_osds[osd_num]);
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alive_set = osd_set.filter(osd_num => osd_num && aff_osds[osd_num]);
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if (!alive_set.length)
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{
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alive_set = osd_set.slice(0, pg_data_size).filter(osd_num => osd_num && up_osds[osd_num]);
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if (!alive_set.length)
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alive_set = osd_set.filter(osd_num => osd_num && up_osds[osd_num]);
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}
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}
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if (!alive_set.length)
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return 0;
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return alive_set[this.rng() % alive_set.length];
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}
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save_new_pgs_txn(request, pool_id, up_osds, prev_pgs, new_pgs, pg_history)
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save_new_pgs_txn(request, pool_id, up_osds, osd_tree, prev_pgs, new_pgs, pg_history)
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{
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const aff_osds = this.get_affinity_osds(this.state.config.pools[pool_id], up_osds, osd_tree);
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const pg_items = {};
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this.reset_rng();
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new_pgs.map((osd_set, i) =>
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@ -931,7 +945,7 @@ class Mon
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osd_set = osd_set.map(osd_num => osd_num === LPOptimizer.NO_OSD ? 0 : osd_num);
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pg_items[i+1] = {
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osd_set,
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primary: this.pick_primary(pool_id, osd_set, up_osds),
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primary: this.pick_primary(pool_id, osd_set, up_osds, aff_osds),
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};
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if (prev_pgs[i] && prev_pgs[i].join(' ') != osd_set.join(' ') &&
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prev_pgs[i].filter(osd_num => osd_num).length > 0)
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@ -1062,6 +1076,13 @@ class Mon
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console.log('Pool '+pool_id+' has invalid osd_tags (must be a string or array of strings)');
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return false;
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}
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if (pool_cfg.primary_affinity_tags && typeof(pool_cfg.primary_affinity_tags) != 'string' &&
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(!(pool_cfg.primary_affinity_tags instanceof Array) || pool_cfg.primary_affinity_tags.filter(t => typeof t != 'string').length > 0))
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{
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if (warn)
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console.log('Pool '+pool_id+' has invalid primary_affinity_tags (must be a string or array of strings)');
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return false;
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}
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return true;
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}
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@ -1091,6 +1112,17 @@ class Mon
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}
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}
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get_affinity_osds(pool_cfg, up_osds, osd_tree)
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{
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let aff_osds = up_osds;
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if (pool_cfg.primary_affinity_tags)
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{
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aff_osds = { ...up_osds };
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this.filter_osds_by_tags(osd_tree, { x: aff_osds }, pool_cfg.primary_affinity_tags);
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}
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return aff_osds;
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}
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async recheck_pgs()
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{
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// Take configuration and state, check it against the stored configuration hash
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@ -1121,7 +1153,7 @@ class Mon
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{
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prev_pgs[pg-1] = this.state.config.pgs.items[pool_id][pg].osd_set;
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}
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this.save_new_pgs_txn(etcd_request, pool_id, up_osds, prev_pgs, [], []);
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this.save_new_pgs_txn(etcd_request, pool_id, up_osds, osd_tree, prev_pgs, [], []);
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}
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}
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for (const pool_id in this.state.config.pools)
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@ -1228,7 +1260,7 @@ class Mon
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key: b64(this.etcd_prefix+'/pool/stats/'+pool_id),
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value: b64(JSON.stringify(this.state.pool.stats[pool_id])),
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} });
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this.save_new_pgs_txn(etcd_request, pool_id, up_osds, real_prev_pgs, optimize_result.int_pgs, pg_history);
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this.save_new_pgs_txn(etcd_request, pool_id, up_osds, osd_tree, real_prev_pgs, optimize_result.int_pgs, pg_history);
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}
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this.state.config.pgs.hash = tree_hash;
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await this.save_pg_config(etcd_request);
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@ -1245,13 +1277,14 @@ class Mon
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continue;
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}
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const replicated = pool_cfg.scheme === 'replicated';
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const aff_osds = this.get_affinity_osds(pool_cfg, up_osds, osd_tree);
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this.reset_rng();
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for (let pg_num = 1; pg_num <= pool_cfg.pg_count; pg_num++)
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{
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const pg_cfg = this.state.config.pgs.items[pool_id][pg_num];
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if (pg_cfg)
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{
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const new_primary = this.pick_primary(pool_id, pg_cfg.osd_set, up_osds);
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const new_primary = this.pick_primary(pool_id, pg_cfg.osd_set, up_osds, aff_osds);
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if (pg_cfg.primary != new_primary)
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{
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console.log(
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