Class: Flydata::Command::Sender
- Inherits:
-
Base
- Object
- Base
- Flydata::Command::Sender
show all
- Defined in:
- lib/flydata/command/sender.rb
Instance Attribute Summary
Attributes inherited from Base
#opts
Class Method Summary
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Instance Method Summary
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Methods inherited from Base
#ask_input_table_name, #ask_yes_no, #choose_one, #data_entry, #flydata, #initialize, #newline, #register_crontab, #retrieve_data_entries, #separator, #show_purpose_name
included
#before_logging, #log_error_stderr, #log_info_stdout, #log_warn_stderr
Class Method Details
.slop_start ⇒ Object
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# File 'lib/flydata/command/sender.rb', line 8
def self.slop_start
Slop.new do
on 'n', 'no-daemon', 'Start FlyData agent as a regular program'
end
end
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Instance Method Details
#agent_locked? ⇒ Boolean
call the method only when no legit process is running.
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# File 'lib/flydata/command/sender.rb', line 140
def agent_locked?
File.exists?(FLYDATA_LOCK)
end
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#flush_client_buffer(options = {}) ⇒ Object
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# File 'lib/flydata/command/sender.rb', line 85
def flush_client_buffer(options = {})
force_flush = options.has_key?(:force) ? options[:force] : true
unless process_exist?
return true if !force_flush || client_buffer_empty?
log_info_stdout("Process doesn't exist. But, the client buffer is not empty!!") unless options[:quiet]
raw_start(options)
end
log_info_stdout('Stopping input plugins and flushing the client buffer.') unless options[:quiet]
Kernel.system("kill -USR1 `cat #{pid_file}`")
retry_count = 12
1.upto(retry_count) do |i|
return true if client_buffer_empty?
log_info_stdout("Waiting for the buffer to get empty... (#{i}/#{retry_count})") unless options[:quiet]
Kernel.sleep 5
end
raise 'Something is wrong! Unable to flush client buffer'
end
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#kill_all(options = {}) ⇒ Object
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# File 'lib/flydata/command/sender.rb', line 131
def kill_all(options = {})
if Kernel.system("ps ax | grep 'flydata' | grep -v grep | grep fluentd | awk '{print \"kill \" $1}' | sh")
log_info_stdout("Done.") unless options[:quiet]
return true
else
raise 'Something has gone wrong...'
end
end
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#process_exist? ⇒ Boolean
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# File 'lib/flydata/command/sender.rb', line 127
def process_exist?
`[ -f #{pid_file} ] && pgrep -P \`cat #{pid_file}\``.to_i > 0
end
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#restart(options = {}) ⇒ Object
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# File 'lib/flydata/command/sender.rb', line 105
def restart(options = {})
if process_exist?
log_info_stdout('Restarting sender process.') unless options[:quiet]
begin
stop(options)
rescue
log_warn_stderr 'Something has gone wrong... force stopping the FlyData process...'
kill_all(options)
end
else
log_info_stdout("Process doesn't exist.") unless options[:quiet]
end
start(options)
say('Process started.') unless options[:quiet]
end
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#start(options_or_show_final_message = {show_final_message: true}) ⇒ Object
For backward compatibility. Use only as options going forward
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# File 'lib/flydata/command/sender.rb', line 13
def start(options_or_show_final_message = {show_final_message: true}) if options_or_show_final_message.kind_of? Hash
options = options_or_show_final_message
else
options = {show_final_message: options_or_show_final_message}
end
if process_exist?
log_info_stdout("Process is still running. Please stop process first.") unless options[:quiet]
return
end
if agent_locked?
log_info_stdout("Agent was not shut down properly. Agent will check the status and fix itself if necessary.")
repair_opts = Flydata::Command::Sync.slop_repair
repair_opts.parse!(["-y"])
sync = Flydata::Command::Sync.new(repair_opts)
sync.send(:_repair) if agent_locked?
raise "Agent was not able to recover from the previous unexpected shutdown. Please contact [email protected] to resolve the issue."
end
end
orphan_processes.each do |pid|
Process.kill(:TERM, pid)
end
wait_until_server_ready(options)
dp = flydata.data_port.get
AgentCompatibilityCheck.new(dp).check
fluentd_started = false
start_fluentd = Proc.new do
log_info_stdout("Starting FlyData Agent sender process.") unless options[:quiet]
raw_start(options)
wait_until_client_ready(options)
fluentd_started = true
end
quiet_option = options[:quiet]
options[:quiet] = true
Flydata::Command::Sync.new.try_mysql_sync(
binlog_ready_callback: start_fluentd)
options[:quiet] = quiet_option
start_fluentd.call unless fluentd_started
if options[:show_final_message] && !options[:quiet]
data_port = flydata.data_port.get
log_info_stdout("Go to your Dashboard! #{flydata.flydata_api_host}/data_ports/#{data_port['id']}")
log_info_stdout <<EOF
Please Note: Records and Total Size are updated every 10-20 minutes.
EOF
end
end
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#status ⇒ Object
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# File 'lib/flydata/command/sender.rb', line 120
def status
if process_exist?
log_info_stdout("Process is running.")
else
log_info_stdout("Process is not running.")
end
end
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#stop(options = {}) ⇒ Object
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# File 'lib/flydata/command/sender.rb', line 72
def stop(options = {})
unless process_exist?
log_info_stdout("Process doesn't exist.") unless options[:quiet]
return true
end
log_info_stdout('Stopping sender process.') unless options[:quiet]
if Kernel.system("kill `cat #{pid_file}`") and wait_until_client_stop(options)
log_info_stdout('Done.') unless options[:quiet]
return true
end
raise 'Something has gone wrong..'
end
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#wait_until_server_ready(options = {}) ⇒ Object
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# File 'lib/flydata/command/sender.rb', line 144
def wait_until_server_ready(options = {})
retry_count = 60 1.upto(retry_count) do |i|
return true if server_ready?
log_info_stdout("Waiting for the server side to become active... (#{i})") unless options[:quiet]
Kernel.sleep 30
end
false
end
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