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https://issues.apache.org/jira/browse/IOTDB-1020?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel
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Houliang Qi reassigned IOTDB-1020:
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Assignee: Houliang Qi
> [Distributed] Split the persist log buffer to better absorb ingestion
> ---------------------------------------------------------------------
>
> Key: IOTDB-1020
> URL: https://issues.apache.org/jira/browse/IOTDB-1020
> Project: Apache IoTDB
> Issue Type: Improvement
> Reporter: Houliang Qi
> Assignee: Houliang Qi
> Priority: Major
> Labels: pull-request-available
>
> In the current implementation, we provide only one persist raft log buffer
> for each SyncLogDequeSerializer, which means if the buffer is full, we will
> have to wait until the buffer is flushed before we can write the next log,
> thus creating spikes in ingestions.
> So, it is beneficial to split the WAL buffer into a working one and a
> flushing one, and if the last flush has completed before we ran out of the
> current working one, we can directly swap them, and continue writes.
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