Class: UU::OS::Util::ServerStatistics

Inherits:

Object

• Object
• UU::OS::Util::ServerStatistics

show all

Defined in:

uu_os_application-server-2.7.3/lib/uu/os/util/server_statistics.rb

Overview

Instance Attribute Summary (collapse)

• - (Fixnum) client_error_count readonly

  Number of failed requests caused by client error.

• - (Fixnum) concurrent_requests readonly

  Number of concurrently processed requests.

• - (Time) last_client_error_time readonly

  Last time of error caused by client.

• - (Time) last_request_time readonly

  Last request time.

• - (Time) last_server_error_time readonly

  Last time of error caused by internal server problem.

• - (Fixnum) request_count readonly

  Total count of processed requests.

• - (Fixnum) server_error_count readonly

  Number of failed requests caused by internal server error.

• - (Time) start_time readonly

  Server start time.

Instance Method Summary (collapse)

• - (Fixnum) average_request_time

  Returns average request time.

• - (void) begin_request

  Method to be called on beginning of request processing.

• - (ServerStatistics) initialize(max_request_time) constructor

  Creates new instance of statistics.

• - (Fixnum) max_request_time

  Returns slowest request time.

• - (Fixnum) min_request_time

  Returns fastest request time.

• - (void) record_client_error(duration)

  Method to be called upon request failed by client error.

• - (void) record_request(duration)

  Method to be called upon sucessfuly processed request.

• - (void) record_server_error(duration)

  Method to be called upon request failed by server error.

• - (Fixnum) request_time_percentile(val)

  Returns value of request time percentile.

• - (void) reset!

  Resets statistics.

• - (String) uptime

  Server uptime (with seconds precision).

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# File 'uu_os_application-server-2.7.3/lib/uu/os/util/server_statistics.rb', line 45

def initialize(max_request_time)
  @max_request_time = max_request_time
  @start_time = Time.now
  @last_request_time = nil
  @last_client_error_time = nil
  @last_server_error_time = nil
  @request_count = 0
  @client_error_count = 0
  @server_error_count = 0
  @concurrent_requests = 0
  @request_histogram = UU::OS::Util::Histogram.new(1, max_request_time * 1000000, max_request_time * 10)
end

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# File 'uu_os_application-server-2.7.3/lib/uu/os/util/server_statistics.rb', line 33

def client_error_count
  @client_error_count
end

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# File 'uu_os_application-server-2.7.3/lib/uu/os/util/server_statistics.rb', line 41

def concurrent_requests
  @concurrent_requests
end

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# File 'uu_os_application-server-2.7.3/lib/uu/os/util/server_statistics.rb', line 20

def last_client_error_time
  @last_client_error_time
end

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# File 'uu_os_application-server-2.7.3/lib/uu/os/util/server_statistics.rb', line 16

def last_request_time
  @last_request_time
end

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# File 'uu_os_application-server-2.7.3/lib/uu/os/util/server_statistics.rb', line 25

def last_server_error_time
  @last_server_error_time
end

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# File 'uu_os_application-server-2.7.3/lib/uu/os/util/server_statistics.rb', line 29

def request_count
  @request_count
end

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# File 'uu_os_application-server-2.7.3/lib/uu/os/util/server_statistics.rb', line 37

def server_error_count
  @server_error_count
end

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# File 'uu_os_application-server-2.7.3/lib/uu/os/util/server_statistics.rb', line 12

def start_time
  @start_time
end

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# File 'uu_os_application-server-2.7.3/lib/uu/os/util/server_statistics.rb', line 123

def average_request_time
  res = @request_histogram.average
  res ? res * 1000 : res
end

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# File 'uu_os_application-server-2.7.3/lib/uu/os/util/server_statistics.rb', line 66

def begin_request
  @concurrent_requests += 1
end

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# File 'uu_os_application-server-2.7.3/lib/uu/os/util/server_statistics.rb', line 116

def max_request_time
  res = @request_histogram.max
  res ? res * 1000 : res
end

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# File 'uu_os_application-server-2.7.3/lib/uu/os/util/server_statistics.rb', line 109

def min_request_time
  res = @request_histogram.min
  res ? res * 1000 : res
end

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# File 'uu_os_application-server-2.7.3/lib/uu/os/util/server_statistics.rb', line 84

def record_client_error(duration)
  time = Time.now
  @last_request_time = time
  @last_client_error_time = time
  @request_count += 1
  @client_error_count += 1
  @concurrent_requests -= 1
  @request_histogram.record(duration / 1000)
end

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# File 'uu_os_application-server-2.7.3/lib/uu/os/util/server_statistics.rb', line 73

def record_request(duration)
  time = Time.now
  @last_request_time = time
  @request_count += 1
  @concurrent_requests -= 1
  @request_histogram.record(duration / 1000)
end

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# File 'uu_os_application-server-2.7.3/lib/uu/os/util/server_statistics.rb', line 97

def record_server_error(duration)
  time = Time.now
  @last_request_time = time
  @last_server_error_time = time
  @request_count += 1
  @server_error_count += 1
  @concurrent_requests -= 1
  @request_histogram.record(duration / 1000)
end

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# File 'uu_os_application-server-2.7.3/lib/uu/os/util/server_statistics.rb', line 131

def request_time_percentile(val)
  res = @request_histogram.percentile(val)
  res ? res * 1000 : res
end

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# File 'uu_os_application-server-2.7.3/lib/uu/os/util/server_statistics.rb', line 138

def reset!
  @last_request_time = nil
  @last_client_error_time = nil
  @last_server_error_time = nil
  @request_count = 0
  @client_error_count = 0
  @server_error_count = 0
  @request_histogram = UU::OS::Util::Histogram.new(1, @max_request_time * 1000000, @max_request_time * 10)
end

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# File 'uu_os_application-server-2.7.3/lib/uu/os/util/server_statistics.rb', line 60

def uptime
  Time.at(Time.now - @start_time).utc.strftime("%H:%M:%S")
end