Java Agent v2.1.2

Change (update)

Adding the weaving setting

The weaving setting has been added to track open source plug-ins. +

The weaving setting that has the same functionality as the existing weaving_reserved setting has been added. +

whatap.conf
weaving=tomcat10

whatap.conf
weaving_reserved=tomcat10

Adding the thread stop setting

An item has been added to set whether or not to stop the thread when the thread operation time exceeds the set value.

The default values is false.

whatap.conf
auto_thread_kill_elapsed=0
auto_thread_kill_enabled=false

Modification of collection monitoring

The existing method of hooking the collection class has been modified so that the collection class data can be retrieved indirectly through CollectionHolder.

The class that creates the collection to the collection_nonstatic_holders setting has been added so you can see it in the collection map menu.

whatap.conf
collection_nonstatic_holders=org.apache.catalina.session.ManagerBase

Adding the number of errors upon database call to the real-time statistics

If an error occurs during database call, the setting has been added to add the number of errors in the real-time statistics.

Adding the real-time logs to connect the HTTP and database

The real-time logs have been added for HTTP and DB connections.

Display of oname specified in the agent log

Even when oname is specified using the -D option, the setting has been modified to display the agent name instead of the PID in the agent logs.

Adding the JDBC URL extraction delimiter

Modified to truncate based on "?" and ";" when extracting JDBC URL.

Added ";"

Adding the automatic recognition function when using the log open source

When using the logback and log4j open sources, or log related open sources including the logging string, the function has been added to automatically disable the hooking option.

Adding the logsink collection data

The data collected in logsink has been added.

According to the configuration, you can determine whether the transaction ID, login ID, and HTTP host data are to be collected.

whatap.conf
_logtag_enabled = false         # tag 
logtag_txid_enabled=false       # transation id
logtag_login_enabled=false      # login id
logtag_httphost_enabled=false   # http host

Application of HttpClient Timeout and error handling

Added the function to apply timeout to HttpClient and handle errors upon timeout.

Adding the JMX pool setting

The default value of the JMX pool object has been modified. An option to determine whether or not to use the data source name of the JMX pool has been added. If the data source name is registered, the JNDI method is executed. If the name is not registered, the default URL method is executed.

whatap.conf
jmx_pool_dsname_enabled=false
jmx_pool_object="*:type=DataSource,class=*,name=*"

Adding the heapdump file path option

The log-root option has been added to set the heapdump file path.

whatap.conf
log_root=${WHATAP_HOME}/dump

Modification of the active start part of the batch agent

Modified the batch agent to leave an active stack on the main thread of the batch process.

Adding the thread name display setting on the active stack

The setting has been added to display the thread name of the active stack.

whatap.conf
active_stack_thread_name_enabled=false

Note

If the Yard version is low and the value is set to true, the agent connection is disconnected continually due to a protocol error.

Adding the setting to display the asynchronous thread name

Added the setting to display the thread ID and name of the asynchronous thread.

whatap.conf
debug_async_thread_enabled=false

Saving the database call URL

Modified to save the database call URL.

Deletion of the database call hash value

Deleted the database call hash value from an error text.

Modification of the agent execution logo

The logo content has been modified while the Java agent is running.

The Best Observability in Java

Modified the asynchronous HTTP call error notification message.

The notification message has been modified to display the status code when an asynchronous HTTP call error occurs.

Modification of the license key option in the agent settings

Modified whatap.conf to use both license and accesskey options.

whatap.conf
# Same function
license=
accesskey=

Modification of the Java agent meta option name

Modified the name of the Java agent meta tag option.

whatap.conf
agent_meta_tags_enabled=true

New features

Adding the exclusions for the agent environment variables

The function has been added to exclude from the search items when a specific key value is entered in the environment variable search function.

The delimiter is "," and the value is not case sensitive. It can be used in connection with the agent_env_system_enabled and agent_env_jvm_enabled settings.

whatap.conf
agent_env_system_enabled=false
agent_env_jvm_enabled=true

agent_env_ignore_keys=user.timezone,user.name,user.language

Adding the linked service tracing function

The linked service status tracing function has been added so that the target IP or service connection status can be checked in liveTail of log monitoring.

You can enable the function by setting logsink_rt_enabled to true, which collects logs with the #RemoteTrace category.

In case of a normal response, the level is ok. In case of error, the level is error.
In case of a normal response, logs are recorded according to logsink_rt_ok_interval. The default value is 30 seconds.
In case of an error response, logs are recorded according to logsink_rt_ok_interval. The default value is 5 seconds.

whatap.conf
logsink_rt_enabled=false

logsink_rt_error_interval=5000
logsink_rt_ok_interval=30000

Adding the external call error notification

The function has been added to receive a notification when an error occurs when calling HTTP or database or the response is slower than the specified time.

The function can be enabled by setting exception_alert_enabled to true.
Using the exception_alert_stack_size option, you can specify the error stack length to receive alert messages.
You can disable error notifications for the specified period by the exception_alert_silent_time option.
The notification messages include URL, status_code, error_message, and error_stack.

whatap.conf
# Default
# Whether the error notification is enabled
exception_alert_enabled=false

# Whether the transaction error notification is enabled
exception_alert_service_enabled=false

# Whether the error notification is enabled upon HTTP call
exception_alert_httpc_enabled=false

# Whether the error notification is enabled upon JDBC call
exception_alert_jdbc_enabled=false

# Length of the stack displayed in the error notification message
exception_alert_stack_size=50

# Period of disabling the error notification message = 5 minutes (30000ms)
exception_alert_silent_time=300000

# Status code to ignore in the transaction error notification
status_alert_ignore=403

# url:status_code combinations to ignore in the transaction error notification
status_alert_ignore_set=/api/test/timeout:408

# Status code ignored in the HTTP call error notification
httpc_status_alert_ignore=408,500

# url:status code combinations ignored in the HTTP call error notification
httpc_status_url_alert_ignore_set=/api/test/timeout:408

Adjustment of error levels of transactions and HTTP calls

A function has been added to recognize the status of transactions or HTTP calls as normal. When the transaction or HTTP call status is set to info, the version function has been added so that errors not handled by Spring Framework's ExceptionHandler can be recognized as normal. If the condition is met, INFO appears at the ErrorLevel in the hitmap and the error statistics include it.

whatap.conf
# Default
transaction_status_mode=normal
httpc_status_mode=normal

# Ignoring errors
transaction_status_mode=info
httpc_status_mode=info

# Recognized as status code info to ignore in the transaction error notification
status_alert_ignore=403

# url:status_code combinations to ignore in the transaction error notification are recognized as info
status_alert_ignore_set=/api/test/timeout:408

# Recognized as status code infor ignorec in the HTTP call error notification
httpc_status_alert_ignore=408,500

# url:status code combinations ignored in the HTTP call error notification are recognized as info
httpc_status_url_alert_ignore_set=/api/test/timeout:408

Adding the Alibaba Druid connection pool tracing function

The function to trace the Alibaba Druid connection pool has been added.

whatap.conf
druid_pool_enabled=false

Addition of the netstat function

Added the function to collect netstat by using the OSHI library. Among network metrics, the packet, collision, drop, error, and bps are collected.

whatap.conf
oshi_netstat_enabled=false
debug_oshi_netstat_enabled=false

Fixed (bug fixing)

Fixing the .x plug-in int type recognition error

Fixed the bug where the int type could not be recognized in the plug-ins that use the x extension.

Fixing the batch agent's getResultSet error

The TraceSQL.getResultSet error of the batch agent has been corrected.

Fixing the HTTP error time setting bug

Fixed the bug where an error appears even if the maximum error time is set to 0 when calling an HTTP.

Bug that cannot trace the local date when tracing SQLs

Fixed the bug where the java.time.LocalDate type cannot be traced upon SQL request.

Fixing the bug upon displaying the agent log

Fixed the bug where an error occurs if logs are left using the java.sql.Timestamp type.

Fixed the class signature verification bug

Fixed the bug where java.lang.NullPointerException occurs upon display request of class signature on the Agent CONFIG. menu.

Fixing the bug upon container ID extraction

Fixed the container ID extraction bug.

Change (update)​

Adding the weaving setting​

Adding the thread stop setting​

Modification of collection monitoring​

Adding the number of errors upon database call to the real-time statistics​

Adding the real-time logs to connect the HTTP and database​

Display of oname specified in the agent log​

Adding the JDBC URL extraction delimiter​

Adding the automatic recognition function when using the log open source​

Adding the logsink collection data​

Application of HttpClient Timeout and error handling​

Adding the JMX pool setting​

Adding the heapdump file path option​

Modification of the active start part of the batch agent​

Adding the thread name display setting on the active stack​

Adding the setting to display the asynchronous thread name​

Saving the database call URL​

Deletion of the database call hash value​

Modification of the agent execution logo​

Modified the asynchronous HTTP call error notification message.​

Modification of the license key option in the agent settings​

Modification of the Java agent meta option name​

New features​

Adding the exclusions for the agent environment variables​

Adding the linked service tracing function​

Adding the external call error notification​

Adjustment of error levels of transactions and HTTP calls​

Adding the Alibaba Druid connection pool tracing function​

Addition of the netstat function​

Fixed (bug fixing)​

Fixing the .x plug-in int type recognition error​

Fixing the batch agent's getResultSet error​

Fixing the HTTP error time setting bug​

Bug that cannot trace the local date when tracing SQLs​

Fixing the bug upon displaying the agent log​

Fixed the class signature verification bug​

Fixing the bug upon container ID extraction​