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https://issues.apache.org/jira/browse/IOTDB-1404?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel
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Hai Liu reassigned IOTDB-1404:
------------------------------
Sprint: 2021-09
Assignee: Xinyu Tan
> Write blocking problem for three node three replica cluster
> -----------------------------------------------------------
>
> Key: IOTDB-1404
> URL: https://issues.apache.org/jira/browse/IOTDB-1404
> Project: Apache IoTDB
> Issue Type: Improvement
> Reporter: Xinyu Tan
> Assignee: Xinyu Tan
> Priority: Major
>
> Set up a cluster with three nodes and three replicas. Firstly, manually
> registered all metadata, and then wrote the data several times by using
> multiple sessionpools which are encapsulated in the upper layer and can
> automatically fault tolerant. The results show that shutting down a node
> service has little effect on performance, but pulling out a node network
> cable has a great effect on performance. For the latter, use a SessionPool
> directly to connect to one of the normal two nodes, and it still takes a long
> time to write data.
> This is unusual because the quorum of a raft group is 2, and the slowness of
> a node should not block writes
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