Agent Bundle releases

The Agent Bundle provides the base for other Sensors to run.

Agent 1.1.725

Agent 1.1.725 released on 20 June 2024 with the tag 2024.06.20.1531.

Previously, the Host Agent verified incoming data on the connection and closed it if no traffic was observed within 600 seconds. An edge case was identified when the Agent loses connection to the Instana backend every 30 seconds. Closing the connection led to extra load within the JVM. This issue is now fixed and the Host Agent now checks the incoming data at 200, 400, and 600 seconds. If no data reaches the agent for 600 seconds, the connection is marked as unstable and closed.

Agent 1.1.724 released on 20 June 2024 with the tag 2024.06.20.1115.

Previously, the Host Agent ignored a process after reading the content in /proc/<pid>/<something> had a timeout. The default timeout was 5 seconds, which got triggered mistakenly in Host Agents running on overloaded hosts. In such cases, the Agent mistakenly ignored the process and did not retry it. This issue is now fixed, and the Host Agent handles potentially broken processes with a staged approach. The Host Agent now supports multiple stages for a process. Successful reading of process data resets the counter. The list of the ignored processes is reset every 10 minutes.
Previously, in some cases within the Host Agent, the flow expected a connection to be removed to run a full reattachment. This reattachment is only possible if the connection is removed and is not added back within a timeout of 20 seconds. This issue is now fixed, and the connection between the Host Agent and JVM is now removed, if the connection is marked as closed.
Previously, a regression with J9 based JVMs occured that required the stat command, which was not available on AIX. This issue is now fixed and now the JVMs that run on AIX are excluded from the new attachment that is added with Agent 1.1.721. The new attachment is enabled again when stat command is replaced with istat command.

Agent 1.1.723 was released on 13 June 2024 with the tag 2024.06.13.0459.

An environment variable CONTAINERD_SUPPRESS_DEPRECATION_WARNINGS with the value true is added to the ctr exec operations. This environment variable is to exclude deprecation warnings that might interfere with parsers in the Agent.
The evaluation of a process and the PID that reaches the 42699 port of the Agent is delayed. Computation is completed when the field is requested in code. When you make computation optional, the Agent executes other important tasks.

Released on 27 May 2024.

Process with Arguments on Windows were ignored if they contained characters outside of the UTF-8 area.
The Javaagent Loader inside a JVM leaks on Exit Hooks for file references of the Agent when the attachment works, but the communication to the Agent failed afterward
When the agent attaches to a JVM, the Agent places files in <TMPDIR>/.instana with read and execute permissions and excludes the write permission for everyone.
The Agent now parses the output of docker info when Docker is available to save the location of the Docker Root Dir. This information is used to correctly identify Docker containerIds.

Released on 27 May 2024.

Better logging when java -version fails. The log now contains the command and the output that failed to be parsed.
JVM attachments now always use the attach-tools-<version>.jar, which is placed in <TMPDIR>/.instana to allow attachments against JREs and 32-bit JVMs on Windows.
The Agent monitors the Metaspace and issues a restart if the available space is under 10 MB for over 30 minutes. This restart reduces the risk of an OutOfMemoryError:Metaspace.

Released on 02 May 2024.

Released on 02 May 2024.