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fix to generate storage local path using usage #1438

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merged 2 commits into from
Jan 30, 2017
Merged

fix to generate storage local path using usage #1438

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b76473b
fix to generate storage local path using usage
tagomoris Jan 30, 2017
57f957a
add validator for usage of storage plugins
tagomoris Jan 30, 2017
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3 changes: 2 additions & 1 deletion lib/fluent/plugin/storage_local.rb
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Original file line number Diff line number Diff line change
Expand Up @@ -64,7 +64,8 @@ def configure(conf)
end
end
elsif root_dir = owner.plugin_root_dir
@path = File.join(root_dir, 'storage.json')
basename = (conf.arg && !conf.arg.empty?) ? "storage.#{conf.arg}.json" : "storage.json"
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conf.arg can contain space like <storage foo bar>.
So need to validate or convert unexpected charactors.

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Okay, I'll add validation for usage.

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This conf.arg will be given by :usage in storage_create?
Or users should specify <storage args> by themselves?

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Ah, I got it.
We should fill up usage when conf is Fluent::Config::Element's instance case: https://github.com/fluent/fluentd/blob/master/lib/fluent/plugin_helper/storage.rb#L56

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This behavior is a limitations for now.

@path = File.join(root_dir, basename)
@multi_workers_available = true
else
if @persistent
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2 changes: 1 addition & 1 deletion lib/fluent/plugin_helper/storage.rb
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Expand Up @@ -59,7 +59,7 @@ def storage_create(usage: '', type: nil, conf: nil, default_type: nil)
conf = Hash[conf.map{|k,v| [k.to_s, v]}]
Fluent::Config::Element.new('storage', usage, conf, [])
when nil
Fluent::Config::Element.new('storage', usage, {}, [])
Fluent::Config::Element.new('storage', usage, {'@type' => type}, [])
else
raise ArgumentError, "BUG: conf must be a Element, Hash (or unspecified), but '#{conf.class}'"
end
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14 changes: 14 additions & 0 deletions test/plugin/test_storage_local.rb
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Expand Up @@ -186,6 +186,20 @@ class MyInput < Fluent::Plugin::Input
assert_equal '2', @p.get('key1')
assert_equal 4, @p.get('key2')
end

test 'works with customized path by specified usage' do
root_dir = File.join(TMP_DIR, 'root')
expected_storage_path = File.join(root_dir, 'worker0', 'local_storage_test', 'storage.usage.json')
conf = config_element('ROOT', 'usage', {'@id' => 'local_storage_test'})
Fluent::SystemConfig.overwrite_system_config('root_dir' => root_dir) do
@d.configure(conf)
end
@d.start
@p = @d.storage_create(usage: 'usage', type: 'local')

assert_equal expected_storage_path, @p.path
assert @p.store.empty?
end
end

sub_test_case 'configured with root-dir and plugin id, and multi workers' do
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