Summary

The DRX logs output the same logs to the following two paths.

Standard output
Log file

When operating in service mode, the standard output is not used.
The file output is distributed to the main and resource logs.

File	Path	Content
main log file	{DRX installed path}/logs/main.log	DRX operation. Exclude actions by resources
resource-specific log file	{DRX installed path}/logs/{resource_name}/{resource_name}.log	Behavior of resources

When each file reaches the set size, the file is archived and a new one is created.

The file being archived is appended with the date and time at that point in time. (ex: main_2018-11-22_1432.log)

Log View

The following types of commands are provided to output the active DRX log in real time.

drx-ctl log {options} [resource or all]

Supported options:

Option	Shortcut	Description
--include-main	-m	Print the main log. If this option is not specified, only resource-specific logs are output.
--lines {num}	-n {num}	Output the last num lines.

When you execute this command, you can continuously output the update of the log file and terminate it with Ctrl-C.

Configuration

The log-related items that can be set in the configuration file (drx.conf) are as follows.

Item	Value	Format	Description
loglevel-stdout	Log level	trace, debug, info, warning, error, critical, off	Specifies the level of the standard output log.
loglevel-file	Log level	trace, debug, info, warning, error, critical, off	Specifies the level of the log output to the file.
logfile-max-size	File size	Bytes (ex: 10MB)	When the log file reaches the specified capacity, the current log file is archived and a new one is created.
logfile-max-count	File count	Number	Maximum number of current and archived log files.

The log level can be changed in real time via drx-ctl.

drx-ctl set console-loglevel [level]
drx-ctl set file-loglevel [level]

However, the standard output level is ignored when running in service mode.

Output Format

level/data time thread logger:tag] message

Details By Item

Item	Format	Example	Description
log level/date	{level}{date}	I1004 C0928	Print log level and date without spaces. Log levels are described below.
time	hour:min:sec.microsec	16:44:13.790530	-
thread	t{thread ID}	t3056	The thread ID that generated the log.
logger	logger name	main	Logger name for dividing log category.
tag	tag name	license c-:o	Represents a subrange of the logger, or represents the details of the channel.

Log Level

Abbreviation	Level	Range
T	trace	Very detailed operation log
D	debug	Used when problems arise that require debugging
I	info	General information such as state change or behavior
W	warning	A situation where an unintended problem occurs, but there is no problem in resuming or continuing the operation
E	error	A situation where an unintended problem occurs and the action can not be continued
C	critical	Serious error that can not keep the program running

Log List

This document describes only from info level to critical level.

Main

Tag	Level	Format	Example	Description	Source file
	info	Compiled at {date} {time}	Oct 4 2018 09:04:38	When DRX was compiled.	drx.cpp
	info	System Locale: {locale}	en_US.windows-1252	Current system locale value.	drx.cpp
	info	DRX path: {path}	C:\Program Files\DRX	Path where DRX is installed. This value is defined in the environment variable 'DRX_PATH'.	drx.cpp
	info	EXE path: {path}	C:\Program Files\DRX\bin	The path where the currently executed DRX is located.	drx.cpp
	info	Starting in foreground mode	-	Read all the settings and the program has been initialized.	drx.cpp
	info	Starting in daemonize mode	-	Read all the settings and the program has been initialized.	drx.cpp
	error	Initialization failed	-	Failed to read preferences.	drx.cpp
	warning	Environment variable 'DRX_PATH' is not exists	-	-	instance.cpp
	info	Closing drx	-	The last log in the process of terminating the DRX.	core.cpp
	error	System error at quit. ({error_id}: {message})	-	System error during DRX shutdown	core.cpp
	info	Read resources configuration success	-	Read resource-specific settings from DRBD configuration.	core.cpp
	warning	Read resources configuration failed	-	It can also happen if there is no resource.	core.cpp
	info	License is available	-	-	core.cpp
	error	License is not available	-	Exit the program after this log.	core.cpp
	info	Resource create complete	-	All the configured resources have been created. IPC services are available.	core.cpp
	info	Create resource [name]	-	-	drx_manager.cpp
	error	Resource name [name] is already exists		The resource settings are invalid or you tried to add a resource that already exists.	drx_manager.cpp
	error	Failed to create resource [name]. {message}		An error occurred during resource creation. Exit the program after this log.	drx_manager.cpp
	info	Resource [name] deleted		You have deleted resources through IPC.	drx_manager.cpp
	info	IPC service started	-	An IPC server is created.	drx_manager.cpp
	error	Failed to start IPC service	-	There is little chance of occurrence other than memory shortage.	drx_manager.cpp
	error	System error while stopping. ({error_id}: {message})		An error occurred during program termination.	drx_manager.cpp
license	info	Verify license is available	-	The license verification process begins.	drx_manager.cpp
	info	License applied	-	Output when the license is applied with 'set license' command.	drx_manager.cpp
	error	Failed to get drx path	-	The environment variable 'DRX_PATH' may not exist.	drx_manager.cpp
	info	Checking license for [file_path]	C:\Program Files\DRX\drx.lic	Check the license file for that path.	drx_manager.cpp
	error	Failed to initializing license system. {message}		Failed to read the license. The error is the output from RLM.	drx_manager.cpp
	error	License file not found at [file_path]		The file does not exist in the specified path. Output when using 'set license' command.	drx_manager.cpp
	error	Invalid License {product_name}({message})	drx(-40)	Your license is invalid or has expired. The error number is from the RLM.	drx_manager.cpp
	error	License Expired {product_name}	drx	The period has expired and can not be used. The license must be replaced.	drx_manager.cpp
	info	License Status: {value}	Permanent		drx_manager.cpp
plugins	info	All plugin loaded			plugin_manager.cpp
	critical	Failed to load crypto {name}. {message}		Exit the program after this log.	plugin_manager.cpp
	info	Crypto plugins loaded: {names} Crypto algorithms: {names}	OPENSSL PLAIN, AES128(OPENSSL)	Completed loading of encryption plugins.	plugin_manager.cpp
	critical	Failed to load compressor {name}. {message}		Exit the program after this log.	plugin_manager.cpp
	info	Compressor plugins loaded: {names} Compressor algorithms: {names}	ZLIB, LZ4 PLAIN, GZIP(ZLIB), LZ4(LZ4)	Completion of loading of compression plugins.	plugin_manager.cpp
resource	info	Loading language: [file_path]	C:\Program Files\DRX\lang\english.ini	'lang' entry in drx.conf	lang.cpp
resource	warning	Language file [file_path] not found	C:\Program Files\DRX\lang\english.ini	There is no problem running.	lang.cpp

Config

Tag	Level	Format	Example	Description	Source file
	info	Configuration loaded. [file_path]		The configuration file is successfully read. After this, apply the setting.	instance.cpp
	error	Failed to load [file_path]. {message}	[/opt/DRX/drx.conf]. /opt/DRX/drx.conf: cannot open file	Failed to read configuration file. Exit the program after this log.	instance.cpp
	info	Configuration file is not exists. [file_path]		Use the default values.	instance.cpp
	error	Failed to get drbd configuration: {message} Output: {error_output}	Can't get drbd configuration. (exit_code: 10) C:\\Program Files\\DRBD\\etc\\drbd.conf:1: Parse error: 'global \| common \| resource \| skip \| include' expected, but got '∩'	Failed to read DRBD settings.	config.h
	info	DRBD configuration output: {standard_output}		Output of DRBD settings.	config.h
	info	DRBD '{resource}' configuration update DRBD configuration tokens: {config}		Update the settings of the resource. It is output when adjust command is executed.	config.h
global	warning	Failed to parse connection timeout: {value} ({message})		'connect-timeout' entry in drx.conf	config.h
	warning	Unknown console log level value: {value}		'loglevel-stdout' entry in drx.conf	config.h
	warning	Unknown file log level value: {value}		'loglevel-file' entry in drx.conf	config.h
	warning	Failed to parse log file max size: {value}		'logfile-max-size' entry in drx.conf	config.h
	warning	Failed to parse log file max count: {value} ({message})		'logfile-max-count' entry in drx.conf	config.h
	warning	Unknown performance log value: {value}		'performance-log' entry in drx.conf	config.h
	warning	Failed to parse process thread count: {value} ({message})		'process-thread-count' entry in drx.conf	config.h
	warning	Unknown ip verification value: {value}		'ip-verification' entry in drx.conf	config.h
	warning	Failed to parse init timeout: {value} ({message})		'init-timeout' entry in drx.conf	config.h
	info	Set base dir: {path}	/opt/DRX	'base-dir' entry in drx.conf	config.h
	info	Set DRBD path: {path}	/etc/drbd.d/drbd.conf	'drbd-conf' entry in drx.conf	config.h
	info	Set connection timeout: {seconds}	10	'connect-timeout' entry in drx.conf	config.h
	info	Set init timeout: {seconds}	10	'init-timeout' entry in drx.conf	config.h
	info	Set console log level: {value}	info	'loglevel-stdout' entry in drx.conf	config.h
	info	Set file log level: {value}	info	'loglevel-file' entry in drx.conf	config.h
	info	Set log file max size: {value}	10M	'logfile-max-size' entry in drx.conf	config.h
	info	Set log file max count: {value}	10	'logfile-max-count' entry in drx.conf	config.h
	info	Set performance log: {on/off}	off	'performance-log' entry in drx.conf	config.h
	info	Set process thread count: {value}	8	'process-thread-count' entry in drx.conf	config.h
	info	Set IP verification: {on/off}	on	'ip-verification' entry in drx.conf	config.h

packet_process_pool

Level	Format	Example	Description	Source File
info	Started (concurrency: {count})	auto -> 8	Packet processing thread started. This log will not be output if the configuration is not multithreaded.	packet_process_pool.cpp
info	Resized to {count}		The number of threads has changed. Output when 'set process-thread-count' is used.	packet_process_pool.cpp
info	Stopped	-	Packet processing thread stopped. It is output during program termination.	packet_process_pool.cpp
error	Load compressor - inconsistency between threads	-	There was a thread-specific difference while loading or unloading one plug-in per thread. Probably there is a problem with the algorithm of the program. You need to patch it with the modified version.	packet_process_pool.cpp
error	Unload compressor - inconsistency between threads	-		packet_process_pool.cpp
error	Load decompressor - inconsistency between threads	-		packet_process_pool.cpp
error	Unload decompressor - inconsistency between threads	-		packet_process_pool.cpp
error	Load encrypto - inconsistency between threads	-		packet_process_pool.cpp
error	Unload encrypto - inconsistency between threads	-		packet_process_pool.cpp
error	Load decrypto - inconsistency between threads	-		packet_process_pool.cpp
error	Unload decrypto - inconsistency between threads	-		packet_process_pool.cpp
error	Compressor ({name}) is not available		If you try to use an unloaded plug-in, it will be output.	packet_processor.cpp
error	Compressor algorithm ({name}) is not available		If you try to use an unloaded plug-in, it will be output.	packet_processor.cpp
error	Crypto ({name}) is not available		If you try to use an unloaded plug-in, it will be output.	packet_processor.cpp
error	Failed to initialize {name} encrypto stream. ({message})		The plug-in file may be broken.	packet_processor.cpp
error	Crypto algorithm ({name}) is not available		If you try to use an unloaded plug-in, it will be output.	packet_processor.cpp
error	Failed to initialize {name} decrypto stream. ({message})		The plug-in file may be broken.	packet_processor.cpp
error	Compress stream error. ({error_id})		The data or plug-in files may be broken.	packet_processor.cpp
error	Decompress stream error. ({error_id})		The data or plug-in files may be broken.	packet_processor.cpp
error	Encrypt stream error. ({error_id})		The data or plug-in files may be broken.	packet_processor.cpp
error	Decrypt stream error. ({error_id})		The data or plug-in files may be broken.	packet_processor.cpp

Resource-specific logger

Resource-specific loggers are assigned the name of the resource as the name of the logger.

Each resource consists of two channels, so it has the following tags.

{connection direction}{channel type}

In addition, since each channel is composed of two proxy connections, the detailed tag of each connection is as follows.

{connection direction}{channel type}:{proxy location}

Details by tag

Each item

Item	Value	Description
Connection direction	a	Acceptor. (Local DRBD → Local DRX ← Remote DRX)
Connection direction	c	Connector. (Local DRBD ← Local DRX → Remote DRX)
Channel type	-	Undefined. It is determined after connecting with DRBD.
	m	Meta channel
	d	Data channel
Proxy location	i	Inside. Connection with local DRBD.
Proxy location	o	Outside. Connection with remote DRX.

Assuming that the resource name is 'r0', a logger with the following configuration exists.

Resource	Channel type	Proxy location	Tag
r0	-	-	r0
	Acceptor	-	r0:a
		Inside	r0:a-:i
		Outside	r0:a-:o
	Connector	-	r0:c
		Inside	r0:c-:i
		Outside	r0:c-:o

Log List

Tag	Level	Format	Example	Description	Source file
	info	Start resource Inside local({IP:Port}) <-> drbd({IP:Port}) Outside local({IP:Port}) <-> remote({IP:Port})		Starts the connection of the resource.	drx_manager.cpp
	error	Crypto ({name}) is not available		When an unloaded plugin is set.	drx_packet.cpp
	error	Encrypto plugin ({name}) initialization failed. (error_id: {error_id})		The plug-in file may be broken.	drx_packet.cpp
	error	Decrypto plugin ({name}) initialization failed. (error_id: {error_id})		The plug-in file may be broken.	drx_packet.cpp
	error	Failed to encrypt stream. (error_id: {error_id})		The data or plug-in files may be broken.	drx_packet.cpp
	error	Failed to decrypt stream. (error_id: {error_id})		The data or plug-in files may be broken.	drx_packet.cpp
	error	Compressor ({name}) is not available		When an unloaded plugin is set.	drx_packet.cpp
	error	Compressor algorithm ({name}) is not available		There is no plug-in to support remote DRX's compression algorithm.	drx_packet.cpp
	error	Failed to compress stream. (error_id: {error_id})		The data or plug-in files may be broken.	drx_packet.cpp
	error	Failed to decompress stream. (error_id: {error_id})		The data or plug-in files may be broken.	drx_packet.cpp
a- am ad c- cm cd	info	Connector created	-	Inside proxy created.	drx_channel.cpp
	error	Failed to create connector	-	Inside proxy creation failed. There is almost no possibility except memory shortage.	drx_channel.cpp
	info	Linker created	-	Outside proxy created.	drx_channel.cpp
	error	Failed to create linker	-	Outside proxy creation failed. There is almost no possibility except memory shortage.	drx_channel.cpp
	info	Channel state changed to ({type})	bridging, bridged, established and so on		drx_channel.cpp
	info	Channel type changed to ({type})	meta or data	Channel type changed by DRBD connection.	drx_channel.cpp
	info	Connector & Linker initialized	-	Channel is ready to run.	drx_channel.cpp
	error	Linker initialization failed	-	Does not occur.	drx_channel.cpp
	error	Connector initialization failed	-	Does not occur.	drx_channel.cpp
	info	Start channel	-	The channel's thread was executed.	drx_channel.cpp
	info	Channel type duplicated. ({type} channel)	meta or data	The channel is a duplicate and will be disconnected.	drx_channel.cpp
	info	Set memory limit: {value}	100M	Does not occur.	channel_info.cpp
	info	Set bandwidth limit: {value}	10M		channel_info.cpp
	info	Set outbound inside connection: {IP}:{Port}		Does not occur.	channel_info.cpp
	info	Set outbound outside connection: {IP}:{Port}		Does not occur.	channel_info.cpp
	info	Set inbound inside connection: {IP}:{Port}	Does not occur.	Does not occur.	channel_info.cpp
	info	Set inbound outside connection: {IP}:{Port}		Does not occur.	channel_info.cpp
	info	Set compressor: {name}	NONE, ZLIB, IQA, LZ4		channel_info.cpp
	info	Set compressor level: {num}	0~9		channel_info.cpp
	info	Set crypto: {name}	NONE, OPENSSL		channel_info.cpp
	info	Set crypto key file: {file_path}		Does not occur.	channel_info.cpp
	info	Set block size: {value}			channel_info.cpp
	info	Set minimum raw block size: {value}			channel_info.cpp
a-:i a-:o	info	Start accept	-		drx_session_impl.cpp
c-:i c-:o	info	Start connect	-		drx_session_impl.cpp
[ac][-md]:i [ac][-md]:o	warning	System error while disconnect. ({error_id}: {message})		It is mostly the case that the connection is terminated already.	drx_session_impl.cpp
[ac][-md]:i [ac][-md]:o	warning	Initialization timeout. ({secs} seconds)	10	Timeout occurs after sending and receiving initialization packet after connection. It is likely to be a network problem.	drx_session_impl.cpp
Inside [ac][-md]:i	warning	Send to drbd failed. ({error_id}: {message})		Already disconnected or will be disconnect after this.	drx_connector.cpp
	info	Start RX BAB sender		Initiate a transfer to the local DRBD.	drx_connector.cpp
	info	Flushing RX BAB		Transferring all remaining data to DRBD.	drx_connector.cpp
	info	Stopping RX BAB sender			drx_connector.cpp
	error	Failed to pop all datas from RX BAB		Program is terminated during data transfer	drx_connector.cpp
	warning	Failed to receive. ({error_id}: {message})		Already disconnected or will be disconnect after this.	drx_connector.cpp
	info	Start TX BAB receiver		Start writing the data read from DRBD to the buffer.	drx_connector.cpp
	warn	not yet bridged		The connection to the remote DRX was lost while preparing the buffer.	drx_connector.cpp
	warn	Failed to receive from drbd. ({error_id}: {message})		Failed to read data from DRBD.	drx_connector.cpp
	info	TX BAB receiver stopped			drx_connector.cpp
	warning	Receive timeout		Timeout occurs while reading data from DRBD.	drx_connector.cpp
Inside Acceptor a[-md]:i	error	Accept failed. ({error_id}: {message})		Ex) The port number is being used elsewhere.	drx_connector.cpp
	error	Get remote endpoint failed. ({error_id}: {message})		Disconnected immediately after connecting	drx_connector.cpp
	info	Accepted. (client: {DRBD IP}:{DRBD Port})		DRBD connected. Waiting for the channel type.	drx_connector.cpp
	warn	Receive magic packet failed. ({error_id}: {message})		Already disconnected or will be disconnect after this.	drx_connector.cpp
	error	Unknown channel received		Peer is not a DRBD or is an incompatible version.	drx_connector.cpp
	info	Buddy channel got the same type. ({type})	meta or data	Channel type is a duplicate and will be disconnected.	drx_connector.cpp
	error	Accept exception. [{DRX IP}:{DRX Port}] ({error_id}: {message})			drx_connector.cpp
	error	Accept exception. ({message})			drx_connector.cpp
Inside Connector c[-md]:i	error	Set buffer size failed. ({message})		It will be disconnect after this.	drx_connector.cpp
	warning	Connect to drbd failed. [{DRBD IP}:{DRBD Port}] ({error_id}: {message})		Check the DRBD resource settings and firewall.	drx_connector.cpp
	info	Connected at [{DRBD IP}:{DRBD Port}]			drx_connector.cpp
	info	This is not active channel. Reject		This can occur if the connection between the remote DRX and the remote DRBD is lost during the connection with DRBD.	drx_connector.cpp
Outside [ac][-md]:o	info	Local configuration: block-size: {value} compressor selected: {name} crypto selected: {name} compressors available: {name_list} cryptos available: {name_list}	Local configuration: block-size: 1.00 MB compressor selected: ZLIB level 1 crypto selected: NONE compressors available: ZLIB, LZMA cryptos available: OPENSSL	It is output during connection preparation with remote DRX.	drx_link.cpp
	info	Local configuration: block-size: {value} compressor selected: {name} crypto selected: {name} compressors available: {name_list} cryptos available: {name_list}		After connection with remote DRX, It is output when it is confirmed that the peer is DRX.	drx_link.cpp
	error	Unknown initialize packet received. (type: {value})	A numeric value that corresponds to the channel type.	Peer is not DRX or has a different version.	drx_link.cpp
	error	Remote crypto configuration not available. (remote: {value})	OPENSSL	Some plug-ins are not loaded. It will be disconnect after this.	drx_link.cpp
	error	Remote compressor configuration not available. (remote: {value})	LZ4 level 1	Some plug-ins are not loaded. It will be disconnect after this.	drx_link.cpp
	warning	Wrong size header received. (read: {size}, requested: {size}, payload: {size}, error: {error_id})		This can happen if the connection is lost during transmission. It will be disconnect after this.	drx_link.cpp
	warning	Receive header failed. ({error_id}: {message})		Already disconnected or will be disconnect after this.	drx_link.cpp
	warning	Wrong size payload received. (read: {size}, requested: {size}, error: {error_id})		This can happen if the connection is lost during transmission. It will be disconnect after this.	drx_link.cpp
	warning	Receive payload failed. ({error_id}: {message})		Already disconnected or will be disconnect after this.	drx_link.cpp
	error	RX BAB not configured		It will be disconnect after this.	drx_link.cpp
	info	Channel type received. ({type})	drbd_meta or drbd_data	If the same channel is already connected, will be disconnect it.	drx_link.cpp
	warn	Event received ({value})		It will be disconnect after this.	drx_link.cpp
	error	Unhandled header received ({value})		Version with remote DRX may not match.	drx_link.cpp
	info	Start TX BAB sender (memlimit: {}, bwlimit: {}, blocksize: {}, min-raw-block-size: {})		Starts data transfer using compression or encryption.	drx_link.cpp
	info	Start TX BAB sender (memlimit: {}, bwlimit: {}, blocksize: {})		Starts data transfer not using compression or encryption.	drx_link.cpp
	info	Flushing TX BAB		After disconnected, transferring remaining data from TX BAB to remote DRX	drx_link.cpp
	info	Stopping TX BAB sender			drx_link.cpp
	error	Failed to pop all datas from TX BAB		Resource was terminated while flushing the TX BAB.	drx_link.cpp
	warning	Send event {value} failed. ({error_id}: {message})		Already disconnected or will be disconnect after this.	drx_link.cpp
	warning	Send stream failed. ({error_id}: {message})		Already disconnected or will be disconnect after this.	drx_link.cpp
					drx_link.cpp
Outside Connector c[-md]:o	warning	Connect to remote drx failed. [{remote DRX IP}:{remote DRX Port}] ({error_id}: {message})		Check the remote DRX status and firewall.	drx_link.cpp
	info	Connected at [{remote DRX IP}:{remote DRX Port}]		After this, socket setup and initialization packet exchange are started.	drx_link.cpp
	error	Set socket options failed. ({message})		It will be disconnect after this.	drx_link.cpp
	warning	Send init packet failed. ({error_id}:{message})		Already disconnected or will be disconnect after this.	drx_link.cpp
	warning	Receive response packet failed. ({error_id}: {message})		Already disconnected or will be disconnect after this.	drx_link.cpp
	warning	Error while making init conversation between remote drx: {data}		It will be disconnect after this.	drx_link.cpp
	warning	Failed to receive init packet failed. ({error_id}: {message})		Already disconnected or will be disconnect after this.	drx_link.cpp
	warning	Send response packet failed. ({error_id}: {message})		Already disconnected or will be disconnect after this.	drx_link.cpp
Outside Acceptor a[-md]:o	error	Accept failed. ({error_id}: {message})		In most cases, the port number is already being used elsewhere.	drx_link.cpp
	error	Get remote endpoint failed. ({error_id}: {message})		Disconnected immediately after connecting.	drx_link.cpp
	info	Accepted. (client: {remote DRX IP}:{remote DRX Port})		After this, socket setup and initialization packet exchange are started.	drx_link.cpp
	warning	Receive init packet failed. ({error_id}: {message})		Already disconnected or will be disconnect after this.	drx_link.cpp
	warning	Send response packet failed. ({error_id}: {message})		Already disconnected or will be disconnect after this.	drx_link.cpp
	warning	Send init packet failed. ({error_id}: {message})		Already disconnected or will be disconnect after this.	drx_link.cpp
	warning	Receive response packet failed. ({error_id}: {message})		Already disconnected or will be disconnect after this.	drx_link.cpp
	warning	Error while making init conversation between remote drx: {data}		It will be disconnect after this.	drx_link.cpp
	error	Accept exception. [{local DRX IP}:{local DRX Port}] ({error_id}:{message})			drx_link.cpp
	error	Accept exception: {message}			drx_link.cpp
TX BAB RX BAB	info	{size} bytes allocated	1GB		allocator.h
	error	Allocating {size} bytes failed	10GB	Out of memory.	allocator.h
	info	{size} bytes freed	1GB		allocator.h
	error	TX BAB is too small. Please set it to {size} bytes or more.		You should reduce the block-size or increase the size of the TX BAB.	allocator.h
	error	block-size is too big. Please set it to {size} bytes or less.		You should reduce the block-size.	allocator.h
	error	Failed to allocate memory. {message}		Out of memory.	ring_buffer.cpp
	error	Failed to encrypt packet. buffer_size: {size}, encrypted_size: {size}		The length of the encrypted data is longer than the buffer length and can not be buffered.	packet_processor.cpp
	error	Failed to decrypt packet. buffer_size: {size}, decrypted_size: {size}		The length of the decrypted data is longer than the buffer length and can not be buffered..	packet_processor.cpp
	error	Failed to decompress packet. buffer_size: {size}, decompressed_size: {size}		The length of the decompressed data is longer than the buffer length and can not be buffered.	packet_processor.cpp
	error	Failed to decompress at {index} sizes: {original_size}, {buffer_size}		Unsuccessful decompression due to invalid data or compression algorithm is not supported.	packet_processor.cpp
	error	Compress stream error. ({error_id})			packet_processor.cpp
	error	Decompress stream error. ({error_id})			packet_processor.cpp
	error	Encrypt stream error. ({error_id})			packet_processor.cpp
	error	Decrypt stream error. ({error_id})			packet_processor.cpp

IPC

Tag	Level	Format	Description	Source file
	error	Error on accept. ({error_id}: {message})	In most cases, the port number is already being used elsewhere.	ipc_server.cpp
events	info	Notification start	It is output at program start.	ipc_event_notifier.cpp
	info	Notification stopped	It is output during program termination.	ipc_event_notifier.cpp
	warning	Failed to get client endpoint. ({error_id}: {message})	Disconnected immediately after connecting.	ipc_event_notifier.cpp
	info	client removed {IP}:{Port}	Client disconnected to query IPC events.	ipc_event_notifier.cpp
	info	client added {IP}:{Port}	A client has been connected to query IPC events.	ipc_event_notifier.cpp
{IP}:{Port}	warning	Data transfer failed. ({error_id}: {message})		ipc_server.cpp
{IP}:{Port}	error	Error on payload. ({message})	In addition to data transfer, there may have been an error processing the IPC service.	ipc_server.cpp

crash_handler

Level	Format	Example	Description	Source file
info	Signal: {type}	SIGINT or SIGTERM	SIGINT occurs when exiting with Ctrl + C, and SIGTERM occurs when kill by external. After this message, It will be exit the program normally.	handler.cpp
warning	Failed to register signal handler for {type}	SIGABRT, SIGFPE, SIGILL, SIGSEGV	The program or environments may be unusual.	handler.cpp
critical	Signal handling		A termination signal has been detected. (linux)	handler.cpp
critical	Exception handling (Unhandled)		A termination signal has been detected. (windows)	handler.cpp
critical	Exception handling (Vectored)		A termination signal has been detected. (windows)	handler.cpp
critical	Fatal exception: {type} stackdump [frame] {symbol_address} {function} ({filename:line})		Exception type and call stack output	stacktrace_linux.cpp stacktrace_windows.cpp