37 lines
1004 B
Ruby
37 lines
1004 B
Ruby
# frozen_string_literal: true
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module Gitlab
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module Metrics
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# Rack middleware for tracking Redis metrics from Grape and Web requests.
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class RedisRackMiddleware
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def initialize(app)
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@app = app
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end
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def call(env)
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transaction = Gitlab::Metrics.current_transaction
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@app.call(env)
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ensure
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record_metrics(transaction)
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end
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private
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def record_metrics(transaction)
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query_time = Gitlab::Instrumentation::Redis.query_time
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request_count = Gitlab::Instrumentation::Redis.get_request_count
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transaction.increment(:http_redis_requests_total, request_count) do
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docstring 'Amount of calls to Redis servers during web requests'
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end
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transaction.observe(:http_redis_requests_duration_seconds, query_time) do
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docstring 'Query time for Redis servers during web requests'
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buckets Gitlab::Instrumentation::Redis::QUERY_TIME_BUCKETS
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end
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end
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end
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end
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end
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