Hi users!
We have released fluent-package v5.0.4. fluent-package is a stable distribution package of Fluentd. (successor of td-agent v4)
This is a maintenance release of v5.0.x LTS series. As bundled Ruby was updated to 3.2.4 and a foolproof mechanism was implemented to prevent launching duplicated Fluentd instances, we recommend upgrading to fluent-package v5.0.4!
Changes from fluent-package v5.0.3
- Update ruby to 3.2.4 (#645)
- Fixed to prevent launching Fluentd wrongly if the service is already running (#648,#649)
- Added support for Ubuntu 24.04 (Noble Numbat)
Fixed to prevent launching Fluentd wrongly if the service is already running
In this release, a foolproof mechanism was implemented to prevent launching Fluentd wrongly if the service is already running.
As you know, you can check the version of Fluentd with fluentd --version, but there is a case that fluentd -v is executed wrongly to
do it.
When already running Fluentd as a service, fluentd -v launches a duplicated Fluentd instance with the same fluentd configuration.
If you launch duplicated Fluentd instances, it causes the corruption of processing Fluentd buffer.
To prevent such a situation, a foolproof was implemented now.
For example, if Fluentd is running as a service, launching Fluentd causes an error to block it.
Here is the example on Windows:
> fluentd
Error: Can't start duplicate Fluentd instance with the default config.
To start Fluentd, please do one of the following:
(Caution: Please be careful not to start multiple instances with the same config.)
- Stop the Fluentd Windows service 'fluentdwinsvc'.
- Specify the config path explicitly by '-c' ('--config').
Even though if you wrongly launch Fluentd to check version with -v (It should be --version to show version), then it causes the following error.
> fluentd -v
Error: Can't start duplicate Fluentd instance with the default config.
To take the version, please use '--version', not '-v' ('--verbose').
To start Fluentd, please do one of the following:
(Caution: Please be careful not to start multiple instances with the same config.)
- Stop the Fluentd Windows service 'fluentdwinsvc'.
- Specify the config path explicitly by '-c' ('--config')
Note that this foolproof feature is intended to block launching duplicated Fluentd instance, you can explicitly launch Fluentd by specifying a specific option to pass it even though already Fluentd is running as a service.
On Windows:
-c(--config)--dry-run--reg-winsvc--reg-winsvc-fluentdopt--show-plugin-config
On Linux:
-c(--config)--dry-run--show-plugin-config
About next LTS schedule
We plan to ship the next LTS version of fluent-package v5.0.5 on Oct, 2024. The content of updates are still in T.B.D.
About td-agent v4.5.2 and v4.5.3 (Windows)
As it was already announced Drop schedule announcement about EOL of Treasure Agent (td-agent) 4, td-agent v4 was reached EOL in Dec, 2023.
There is a exceptional maintenance release for v4.5.3 on Windows because there was a crash bug during startup on Windows. It was backported fix from fluent-package v5 as it is critical in some case.
We strongly recommend migrating from td-agent v4 to fluent-package v5 (LTS). See Upgrade to fluent-package v5
Download
Please see the download page.
