es节点离开后在节点配置的延迟分配时间内再加入,在数据修改时,会导致数据重建吗?
Elasticsearch | 作者 HerbertMahone | 发布于2020年09月07日 | 阅读数:1704
设置延迟分配时间为10min,节点在离开3分钟后再加入,但该节点对应的数据已经不新鲜,此种情况下会导致节点内数据失效重建吗?2.x版本会,但不知道6.x版本是否会增量同步恢复,而不是全部重建。
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1-Node 5 loses network connectivity.
2-The master promotes a replica shard to primary for each primary that was on Node 5.
3-The master logs a message that allocation of unassigned shards has been delayed, and for how long.
4-The cluster remains yellow because there are unassigned replica shards.
5-Node 5 returns after a few minutes, before the timeout expires.
6-The missing replicas are re-allocated to Node 5 (and sync-flushed shards recover almost immediately).
提到了副本会重新分配给节点5,不会导致在其它节点的副本重建,但是没有提到在离开节点数据不新鲜的情况下,节点5的副本恢复是以何种方式进行的。