v4.0.2

KNOWLEDGE BASE

Release Notes v4.0.2

Fluent Bit is a Fast and Lightweight Data Processor and Forwarder for Linux, BSD, Windows and macOS. We are proud to announce the availability of Fluent Bit v4.0.2.

What’s new ?

NOTE: In v4.0 series, we have upgraded our internal dependencies and deprecated packages for older targets like Ubuntu 16.04, 18.04 and 20.04. In addition, due to Kafka library updates, we have disabled Kafka support for CentOS 7 and Amazon Linux 2.

Core

• pack: add metadata and group info into log JSON record (new __internal__ key). (PR #10282)
• processor: fail on startup when invalid processors are configured (PR #10306)
• input: add missing options to input_global_properties. (PR #10281)
• simd: (RISC-V) Use __riscv_vsetvl_eXXm1 function to get the actual width of RVV instructions (PR #10310)
• engine
  • added conditional to avoid re-scheduling conflict (PR #10290)
  • Display the current maxstdio value on debug level log (PR #9707)
• build
  • use the system provided msgpack if found (PR #9572)
  • use the system provided sqlite if found (PR #9572)
  • use the system provided libzstd if found (PR #9572)
  • only compile simdutf if there is CXX support (PR #10277)
• systemd: build: fix service startup failure when using IMDSv2 (PR #10221)
• bin:
  • config: Provide maxstdio option for increasing I/O limit on Windows (PR #9707)
• config
  • Add windows/. prefix into maxstdio parameter (PR #9707)
  • bin: Add prefix for windows specific functionality (PR #9707)
• tests
  • internal: fuzzers: split cmetrics decoding (PR #10249)
  • add processor_invalid.sh test for validating invalid processor handling (PR #10306)
  • modify processor config to use a valid one that works on all archs (s390x/riscv64) (PR #10306)

Libraries

• ctraces: upgrade to v0.6.6 (PR #10312)
• cmetrics: upgrade to v1.0.2 (PR #10324)

Plugins

• OpenTelemetry (Input)
  • fix packing of resource and scope schemaUrl (PR #10309)
• Azure kusto (Output)
  • fixed double free (PR #10261)
• OpenTelemetry (Output)
  • fix accessor pattern for resource schema_url (PR #10309)
• Splunk (Output)
  • Change attaching priority for HEC token (PR #10329)

Join us

We want to hear about you, our community is growing, and you can be part of it!, you can contact us at:

• Github: http://github.com/fluent/fluent-bit
• Slack: http://slack.fluentd.org
• Twitter: @fluentbit