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Prometheus v2.4.0 Release Notes

Release Date: 2018-09-11 // over 5 years ago

  • 🛠 This release includes multiple bugfixes and features. Further, the WAL implementation has been re-written so the storage is not forward compatible. Prometheus 2.3 storage will work on 2.4 but not vice-versa.

    • 0️⃣ [CHANGE] Reduce remote write default retries #4279
    • 🚚 [CHANGE] Remove /heap endpoint #4460
    • [FEATURE] Persist alert 'for' state across restarts #4061
    • 📇 [FEATURE] Add API providing per target metric metadata #4183
    • [FEATURE] Add API providing recording and alerting rules #4318 #4501
    • [ENHANCEMENT] Brand new WAL implementation for TSDB. Forwards incompatible with previous WAL.
    • 💻 [ENHANCEMENT] Show rule evaluation errors in UI #4457
    • [ENHANCEMENT] Throttle resends of alerts to Alertmanager #4538
    • [ENHANCEMENT] Send EndsAt along with the alert to Alertmanager #4550
    • [ENHANCEMENT] Limit the samples returned by remote read endpoint #4532
    • [ENHANCEMENT] Limit the data read in through remote read #4239
    • 🔧 [ENHANCEMENT] Coalesce identical SD configurations #3912
    • [ENHANCEMENT] promtool: Add new commands for debugging and querying #4247 #4308 #4346 #4454
    • ⚡️ [ENHANCEMENT] Update console examples for node_exporter v0.16.0 #4208
    • ⚡️ [ENHANCEMENT] Optimize PromQL aggregations #4248
    • [ENHANCEMENT] Remote read: Add Offset to hints #4226
    • 👍 [ENHANCEMENT] consul_sd: Add support for ServiceMeta field #4280
    • [ENHANCEMENT] ec2_sd: Maintain order of subnet_id label #4405
    • 👍 [ENHANCEMENT] ec2_sd: Add support for custom endpoint to support EC2 compliant APIs #4333
    • [ENHANCEMENT] ec2_sd: Add instance_owner label #4514
    • 👍 [ENHANCEMENT] azure_sd: Add support for VMSS discovery and multiple environments #4202 #4569
    • [ENHANCEMENT] gce_sd: Add instance_id label #4488
    • [ENHANCEMENT] Forbid rule-abiding robots from indexing #4266
    • 🌲 [ENHANCEMENT] Log virtual memory limits on startup #4418
    • 🛠 [BUGFIX] Wait for service discovery to stop before exiting #4508
    • 🛠 [BUGFIX] Render SD configs properly #4338
    • 🛠 [BUGFIX] Only add LookbackDelta to vector selectors #4399
    • 🛠 [BUGFIX] ec2_sd: Handle panic-ing nil pointer #4469
    • 🛠 [BUGFIX] consul_sd: Stop leaking connections #4443
    • 🛠 [BUGFIX] Use templated labels also to identify alerts #4500
    • 🛠 [BUGFIX] Reduce floating point errors in stddev and related functions #4533
    • 🛠 [BUGFIX] Log errors while encoding responses #4359