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Use real pg configuration instead of the "last clean" one for generating PG history

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Basically fixes the bug introduced in 0.5.7 where an rebalance interrupted
by the monitor could result in forgetting objects moved to the new place
This commit is contained in:
Vitaliy Filippov
2021-03-10 02:01:44 +03:00
parent c4ba24c305
commit e62e8b6bae
1 changed files with 12 additions and 6 deletions
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mon/mon.js
+12 -6
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@@ -845,13 +845,19 @@ class Mon
pool_tree = pool_tree ? pool_tree.children : [];
pool_tree = LPOptimizer.flatten_tree(pool_tree, levels, pool_cfg.failure_domain, 'osd');
this.filter_osds_by_tags(osd_tree, pool_tree, pool_cfg.osd_tags);
const prev_pg_hash = (this.state.history.last_clean_pgs.items||{})[pool_id]
|| (this.state.config.pgs.items||{})[pool_id] || {};
const prev_pgs = [];
for (const pg in prev_pg_hash)
// These are for the purpose of building history.osd_sets
const real_prev_pgs = [];
for (const pg in ((this.state.config.pgs.items||{})[pool_id]||{}))
{
prev_pgs[pg-1] = prev_pg_hash[pg].osd_set;
real_prev_pgs[pg-1] = this.state.config.pgs.items[pool_id][pg].osd_set;
}
// And these are for the purpose of minimizing data movement
let prev_pgs = [];
for (const pg in ((this.state.history.last_clean_pgs.items||{})[pool_id]||{}))
{
prev_pgs[pg-1] = this.state.history.last_clean_pgs.items[pool_id][pg].osd_set;
}
prev_pgs = JSON.parse(JSON.stringify(prev_pgs.length ? prev_pgs : real_prev_pgs));
const pg_history = [];
const old_pg_count = prev_pgs.length;
let optimize_result;
@@ -909,7 +915,7 @@ class Mon
} });
}
LPOptimizer.print_change_stats(optimize_result);
this.save_new_pgs_txn(etcd_request, pool_id, up_osds, prev_pgs, optimize_result.int_pgs, pg_history);
this.save_new_pgs_txn(etcd_request, pool_id, up_osds, real_prev_pgs, optimize_result.int_pgs, pg_history);
}
this.state.config.pgs.hash = tree_hash;
await this.save_pg_config(etcd_request);