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https://issues.apache.org/jira/browse/ACCUMULO-3596?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel
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Josh Elser updated ACCUMULO-3596:
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Description:
calls to importDirectory were hanging. After some debugging, it was determined
that the imports were stuck waiting on DNS lookups.
{{InetAddress#getByName}} calls {{gethostbyname_r}}
Further, it was determined that the call only hangs if /etc/host.conf contains
"reorder on".
A bug was found in this section of the glibc resolver, and a bug report will be
made to them.
Workaround: turn off address reordering.
Many thanks to [~bfloss] for finding this bug.
was:
calls to importDirectory were hanging. After some debugging, it was determined
that the imports were stuck waiting on DNS lookups.
{{InetAddress#getByName}} calls {{gethostbyname_r}}
Further, it was determined that the call only hangs if /etc/hosts.conf contains
"reorder on".
A bug was found in this section of the glibc resolver, and a bug report will be
made to them.
Workaround: turn off address reordering.
Many thanks to [~bfloss] for finding this bug.
> accumulo hangs in {{InetAddress#getByName}}
> -------------------------------------------
>
> Key: ACCUMULO-3596
> URL: https://issues.apache.org/jira/browse/ACCUMULO-3596
> Project: Accumulo
> Issue Type: Bug
> Components: master, tserver
> Environment: large cluster
> Reporter: Eric Newton
> Assignee: Eric Newton
>
> calls to importDirectory were hanging. After some debugging, it was
> determined that the imports were stuck waiting on DNS lookups.
> {{InetAddress#getByName}} calls {{gethostbyname_r}}
> Further, it was determined that the call only hangs if /etc/host.conf
> contains "reorder on".
> A bug was found in this section of the glibc resolver, and a bug report will
> be made to them.
> Workaround: turn off address reordering.
> Many thanks to [~bfloss] for finding this bug.
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