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Changes by Version

Release Notes.

8.4.0

Project

  • Incompatible with previous releases when use H2/MySQL/TiDB storage options, due to support multiple alarm rules triggered for one entity.
  • Chore: adapt create_source_release.sh to make it runnable on Linux.
  • Add package to .proto files, prevent polluting top-level namespace in some languages; The OAP server supports previous agent releases, whereas the previous OAP server (<=8.3.0) won't recognize newer agents since this version (>= 8.4.0).

Java Agent

  • The operation name of quartz-scheduler plugin, has been changed as the quartz-scheduler/${className} format.
  • Fix jdk-http and okhttp-3.x plugin did not overwrite the old trace header.
  • Add interceptors of method(analyze, searchScroll, clearScroll, searchTemplate and deleteByQuery) for elasticsearch-6.x-plugin.
  • Support collecting logs of log4j, log4j2, and logback in the tracing context with a new logger-plugin.
  • Fix the unexpected RunningContext recreation in the Tomcat plugin.
  • Fix the potential NPE when trace_sql_parameters is enabled.

OAP-Backend

  • Make meter receiver support MAL.
  • Support influxDB connection response format option. Fix some error when use JSON as influxDB response format.
  • Support Kafka MirrorMaker 2.0 to replicate topics between Kafka clusters.
  • Add the rule name field to alarm record storage entity as a part of ID, to support multiple alarm rules triggered for one entity. The scope id has been removed from the ID.
  • Fix MAL concurrent execution issues.
  • Fix group name can't be queried in the GraphQL.
  • Fix potential gRPC connection leak(not closed) for the channels among OAP instances.
  • Filter OAP instances(unassigned in booting stage) of the empty IP in KubernetesCoordinator.
  • Add component ID for Python aiohttp plugin requester and server.
  • Fix H2 in-memory database table missing issues
  • Add component ID for Python pyramid plugin server.

UI

  • Fix un-removed tags in trace query.
  • Fix unexpected metrics name on single value component.
  • Don't allow negative value as the refresh period.
  • Fix style issue in trace table view.
  • Separation Log and Dashboard selector data to avoid conflicts.
  • Fix trace instance selector bug.
  • Fix Unnecessary sidebar in tooltips for charts.
  • Refactor dashboard query in a common script.
  • Implement refreshing data for topology by updating date.
  • Implement group selector in the topology.

Documentation

  • Update the documents of backend fetcher and self observability about the latest configurations.
  • Add documents about the group name of service.
  • Update docs about the latest UI.

All issues and pull requests are here

Find change logs of all versions here.