Xinyu Tan created IOTDB-1404:
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Summary: 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
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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