Yuki Yano created SOLR-11656:
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Summary: TLOG replication doesn't work properly after rebalancing
leaders.
Key: SOLR-11656
URL: https://issues.apache.org/jira/browse/SOLR-11656
Project: Solr
Issue Type: Bug
Security Level: Public (Default Security Level. Issues are Public)
Components: replication (java)
Affects Versions: 7.1
Reporter: Yuki Yano
With TLOG replica type, the replication may stop after invoking rebalance
leaders API.
This can be reproduced by following steps:
# Create SolrCloud with TLOG replica type.
# Set perferredleader flag to some of no-leader nodes.
# Invoke rebalance leaders API.
# The replication stops in nodes which were "leader" before rebalancing.
Because the leader node doesn't have the replication thread, we need to create
it when the status is changed from "leader" to "replica".
On the other hand, rebalance leaders API doesn't consider this matter, and the
replication may stop if the status is changed from "leader" to "replica" by
rebalance leaders.
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