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APM version 9.0

APM version 9.0.0

Bug fixes

  • Fix overflow in validation of apm-server.agent.config.cache.expiration on 32-bit architectures {pull}15216[15216]

  • Change permissions of apm-server.yml in tar.gz artifacts to 0600 {pull}15627[15627]

Breaking Changes

  • Change sampling.tail.storage_limit default to 0. While 0 means unlimited local tail-sampling database size, it now enforces a max 80% disk usage on the disk where the data directory is located. Any tail sampling writes after this threshold will be rejected, similar to what happens when tail-sampling database size exceeds a non-0 storage limit. Setting sampling.tail.storage_limit to non-0 maintains the existing behavior which limits the tail-sampling database size to sampling.tail.storage_limit and does not have the new disk usage threshold check. {pull}15467[15467] {pull}15524[15524]

Deprecations

Intake API Changes

Added

  • Tail-based sampling: Storage layer is rewritten to use Pebble database instead of BadgerDB. The new implementation offers a substantial throughput increase while consuming significantly less memory. Disk usage is lower and more stable. See PR for benchmark details. {pull}15235[15235]