# Tenzir Node v4.21.1 ## 馃殌 Features ### Make the grok parser precise Oct 11, 2024 路 [@IyeOnline](https://github.com/IyeOnline) 路 [#4657](https://github.com/tenzir/tenzir/pull/4657) The `grok` parser now allows better control over the schema inference. The `grok` parser can now be directly used when reading input, allowing for `read grok`. ### Add `sample` operator Oct 8, 2024 路 [@raxyte](https://github.com/raxyte) 路 [#4645](https://github.com/tenzir/tenzir/pull/4645) A new `sample` operator now provides the ability to dynamically sample input data based on the frequency of the receiving events allowing relative sampling in situations of varying load. ## 馃悶 Bug Fixes ### Enable azure-blob-storage in the DEB and RPM packages Oct 11, 2024 路 [@tobim](https://github.com/tobim) 路 [#4649](https://github.com/tenzir/tenzir/pull/4649) The `azure-blob-storage` connector is now also available in the static linux binary distributions. ### Fix incorrect context updates count in lookup metrics Oct 10, 2024 路 [@dominiklohmann](https://github.com/dominiklohmann) 路 [#4655](https://github.com/tenzir/tenzir/pull/4655) We fixed a bug that caused the `context_updates` field in `metrics lookup` to be reported once per field specified in the corresponding `lookup` operator instead of being reported once per operator in total. ### Switch the index to basic messaging Oct 9, 2024 路 [@tobim](https://github.com/tobim) 路 [#4613](https://github.com/tenzir/tenzir/pull/4613) We fixed a bug that sometimes caused the `tenzir-node` process to hang on shutdown. This was most likely to happen when the node shut down immediately after starting up, e.g., because of an invalid configuration file. ### Fix double-closing fds in the python operator Oct 7, 2024 路 [@lava](https://github.com/lava) 路 [#4646](https://github.com/tenzir/tenzir/pull/4646) Fixed a bug in the python operator that could lead to random valid file descriptors in the parent process being closed prematurely. [ Download on GitHub ](https://github.com/tenzir/tenzir/releases/tag/v4.21.1) [Get the release artifacts and source code.](https://github.com/tenzir/tenzir/releases/tag/v4.21.1)