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https://issues.apache.org/jira/browse/KUDU-2131?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=16151536#comment-16151536
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Adar Dembo commented on KUDU-2131:
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[~hahao] can you elaborate? Is the issue that DownloadBlocks can take >3m
(default idle timeout) to commit the new blocks such that the session is
terminated before DownloadWALs? How large of a tablet is necessary to trigger
this effect?
> Tablet copy session may expire before completion for large tablet
> -----------------------------------------------------------------
>
> Key: KUDU-2131
> URL: https://issues.apache.org/jira/browse/KUDU-2131
> Project: Kudu
> Issue Type: Bug
> Reporter: Hao Hao
> Priority: Blocker
> Fix For: 1.5.0
>
>
> KUDU-1726 introduced an optimization to do a bulk sync-to-disk once the
> tablet copy operation is complete. However, when tested in a large cluster, I
> found disk synchronization in batches can result in the tablet session
> expires before the synchronization complete. There is a flag
> '--tablet_copy_idle_timeout_ms' to control the amount of time without
> activity before a tablet copy session expires, but it is tagged as hidden(not
> user-facing).
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