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Support optimizing for the case when parity chunks occupy more space than data chunks

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Mostly as an experiment because the problem solved by this commit
comes from Ceph's EC+compression implementation details and I'm not sure
if my implementation will be the same
This commit is contained in:
Vitaliy Filippov
2020-08-17 01:44:19 +03:00
parent 95ebfad283
commit a86788fe3b
5 changed files with 199 additions and 39 deletions
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lp/mon.js
+12 -2
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@@ -550,11 +550,21 @@ class Mon
}
this.scale_pg_count(prev_pgs, pg_history, new_pg_count);
}
optimize_result = await LPOptimizer.optimize_change(prev_pgs, tree_cfg.osd_tree, 3, tree_cfg.max_osd_combinations);
optimize_result = await LPOptimizer.optimize_change({
prev_pgs,
osd_tree: tree_cfg.osd_tree,
pg_size: 3,
max_combinations: tree_cfg.max_osd_combinations,
});
}
else
{
optimize_result = await LPOptimizer.optimize_initial(tree_cfg.osd_tree, 3, tree_cfg.pg_count, tree_cfg.max_osd_combinations);
optimize_result = await LPOptimizer.optimize_initial({
osd_tree: tree_cfg.osd_tree,
pg_size: 3,
pg_count: tree_cfg.pg_count,
max_combinations: tree_cfg.max_osd_combinations,
});
}
if (!await this.save_new_pgs(prev_pgs, optimize_result.int_pgs, pg_history, tree_hash))
{