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https://issues.apache.org/jira/browse/HDFS-9062?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=14741118#comment-14741118
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Chris Nauroth commented on HDFS-9062:
-------------------------------------
Hi [~James Clampffer].
I'm curious if you've tried to get a setup working by controlling the path in
configuration with {{dfs.domain.socket.path}} pointed to a more appropriate
location for your environment, such as /tmp. On the Java side of things, an
example of this is {{TestShortCircuitLocalRead}}, which uses helper class
{{TemporarySocketDirectory}} to grab a temp location and then set that location
in {{Configuration}} as {{dfs.domain.socket.path}} before booting the
mini-cluster.
libhdfs takes a similar approach too. An example is in test_libhdfs_zerocopy.c.
There is also the static method {{DomainSocket#disableBindPathValidation}},
which is a method intended only for tests to use for skipping the security
checks.
Do any of these existing mechanisms help solve the current problem?
> Add a parameter to MiniDFSCluster to turn off security checks on the domain
> socked path
> ---------------------------------------------------------------------------------------
>
> Key: HDFS-9062
> URL: https://issues.apache.org/jira/browse/HDFS-9062
> Project: Hadoop HDFS
> Issue Type: Sub-task
> Components: hdfs-client
> Reporter: James Clampffer
> Assignee: James Clampffer
> Priority: Blocker
>
> I'd like to add a command line parameter that allows the permission checks on
> dfs.domain.socket.path to be turned off.
> Right now a blocker, or at least major inconvenience, for short circuit
> reader development is getting the domain socket path set up with the correct
> permissions. I'm working on shared test machines where messing with things
> in /var/lib is discouraged.
> This should also make it easier to write tests for short circuit reads once
> completed.
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