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https://issues.apache.org/jira/browse/HADOOP-6420?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel
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Chris Douglas updated HADOOP-6420:
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Status: Open (was: Patch Available)
bq. This does so without needing to worry about escape characters or other
clumsiness that would result via embedding a single (k, v) pair in the
Configuration.
On the other hand, the current approach ignores inadvertent collisions and
{{getMap}} is inefficient and not threadsafe.
bq. much as how we have defined mechanisms to embed ints, booleans, and lists
of strings in the Configuration, we need to expand the set of datatypes we can
embed in the configuration to also include maps of string\->string
This isn't embedding maps of string\->string; it's selecting a subset of keys
in a string\->string map using an unenforced naming convention. It's par for
(ab)uses of Configuration, but it's hackish.
Have you looked into using a Stringifier or something along those lines?
Escaping shouldn't be too clumsy...
> String-to-String Maps should be embeddable in Configuration
> -----------------------------------------------------------
>
> Key: HADOOP-6420
> URL: https://issues.apache.org/jira/browse/HADOOP-6420
> Project: Hadoop Common
> Issue Type: Improvement
> Components: conf
> Reporter: Aaron Kimball
> Assignee: Aaron Kimball
> Attachments: HADOOP-6420.2.patch, HADOOP-6420.3.patch,
> HADOOP-6420.4.patch, HADOOP-6420.patch
>
>
> Per MAPREDUCE-1126, we need to be able to take a map of (key, value) pairs
> and embed that inside a Configuration object.
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