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https://issues.apache.org/jira/browse/HADOOP-9162?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=13538449#comment-13538449
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Suresh Srinivas commented on HADOOP-9162:
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Minor Comments:
# Please add annotation to NativeLibraryChecker - InterfaceAudience.Private
# Please add description of -a to the usage.
# Do you think it is a good idea to have checknative [hadoop|zlib|snappy|lz4]
and absence of specific option prints for all? I am okay without this change,
if you choose not to make this change.
> Add utility to check native library availability
> ------------------------------------------------
>
> Key: HADOOP-9162
> URL: https://issues.apache.org/jira/browse/HADOOP-9162
> Project: Hadoop Common
> Issue Type: Improvement
> Components: native
> Affects Versions: 3.0.0, 2.0.3-alpha
> Reporter: Binglin Chang
> Assignee: Binglin Chang
> Priority: Minor
> Attachments: HADOOP-9162.patch, HADOOP-9162.v2.patch,
> HADOOP-9162.v3.patch
>
>
> Many times, after deploy hadoop or when trouble shooting, we need to check
> whether native library(along with native compression libraries) can work
> properly, and I just want to use one command to check that, like this:
> hadoop org.apache.hadoop.util.NativeCodeLoader
> and it shows:
> Native library loading test:
> hadoop: false
> zlib: false
> snappy: false
> lz4: false
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