DAOS-18544 object: reserved targets for GX object (#17585)#17699
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gnailzenh wants to merge 1 commit intorelease/2.6from
Open
DAOS-18544 object: reserved targets for GX object (#17585)#17699gnailzenh wants to merge 1 commit intorelease/2.6from
gnailzenh wants to merge 1 commit intorelease/2.6from
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The current DAOS only reserves RF × group_size targets for a GX object, whereas it should reserve targets_per_domain × RF. In addition, when the number of reserved targets is a fixed value, the likelihood of losing those targets grows significantly as the cluster scales, which can cause collocated shards and extra data movement during rebuild. This patch changes the number of reserved targets for a GX object to be no less than 30% of the targets. Signed-off-by: Liang Zhen <gnailzenh@gmail.com>
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The current DAOS only reserves RF × group_size targets for a GX object, whereas it should reserve targets_per_domain × RF.
In addition, when the number of reserved targets is a fixed value, the likelihood of losing those targets grows significantly as the cluster scales, which can cause collocated shards and extra data movement during rebuild.
This patch changes the number of reserved targets for a GX object to be no less than 30% of the targets.
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