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CHANGELOG.md

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Changelog

Notes

  1. All notable changes to this project will be documented in this file.
  2. Records in this file are not identical to the title of their Pull Requests. A detailed description is necessary for understanding what changes are and why they are made.

v0.7.1 - 2023-03-01

New features

  • Support trace-profiling sampling to reduce data output. One trace is sampled every five seconds for each endpoint by default. (#446#462)

Enhancements

  • Upgrade the golang version to v1.19 in the requirement. (#463)
  • Improve Kindling Event log format. (#455)

Bug fixes

  • Fix security alerts(CVE-2022-41721, CVE-2022-27664) by upgrading package golang.org/x/net.(#463)
  • Fix the potential endless loop in the rocketmq parser. (#465)
  • Fix retransmission count is not consistent with the real value on Linux 4.7 or higher. (#450)
  • Reduce the cases pods are not found when they are daemonset. (#439 @llhhbc)
  • Collector subscribes sendmmsg events to fix the bug that some DNS requests are missed. (#430)
  • Fix the bug that the agent panics when it receives DeletedFinalStateUnknown by watching K8s metadata. (#456)

v0.7.0 - 2023-02-16

New features

  • Add a new simplified chart to display the trace-profiling data. It mixes span with profiling and is more user-friendly. Try the demo now on the website.(#443)
  • Add trace to cpuevents to display the payload of network flows. (#442)
  • Support Attach Agent for NoAPM Java Application. (#431)

Enhancements

  • Add an option edge_events_window_size to allow users to reduce the size of the files by narrowing the time window where seats the edge events. (#437)
  • Rename the camera profiling file to make the timestamp of the profiling files readable. (#434)
  • When using the file writer in cameraexporter, we rotate files in chronological order now and rotate half of files one time. (#420)
  • Support to identify the MySQL protocol with statements commit and set. (#417)

Bug fixes

  • Fix the bug that TCP metrics are not aggregated correctly. (#444)
  • Fix the bug that cpuanalyzer missed some trigger events due to the incorrect variable reference. This may cause some traces can't correlate with on/off CPU data. (#424)

v0.6.0 - 2022-12-21

New features

  • Support to configure snaplen through startup args.(#387)
  • Add tracing span data in cpu events. (#384)
  • Add a new tool: A debug tool for Trace Profiling is provided for developers to troubleshoot problems.(#363)
  • Support the protocol RocketMQ.(#328)

Enhancements

  • Add self-monitor tool: include kernel event log and gdb information of exit.(#398)
  • Adjust max depth of stack trace to 20. (#399)
  • Add the field end_timestamp to the trace data to make it easier for querying. (#380)
  • Add request_tid and response_tid for trace labels.(#379)
  • Add no_response_threshold(120s) for No response requests. (#376)
  • Add payload for all protocols.(#375)
  • Add a new clustering method "blank" that is used to reduce the cardinality of metrics as much as possible. (#372)
  • Modify the configuration file structure and add parameter fields for subscription events. (#368)

Bug fixes

  • Add the missing timestamp of TCP connect data and filter the incorrect one without srcPort.(#405)
  • Fix the bug that multiple events cannot be correlated when they are in one ON-CPU data. (#395)
  • Add the missed latency field for cgoEvent to fix the bug where the request_sent_time in single_net_request_metric_group is always 0. (#394)
  • Fix http-100 request is detected as NOSUPPORT(#393)
  • Fix the wrong thread name in the trace profiling function. (#385)
  • Remove "reset" method of ScheduledTaskRoutine to fix a potential dead-lock issue. (#369)
  • Fix the bug where the pod metadata with persistent IP in the map is deleted incorrectly due to the deleting mechanism with a delay. (#374)
  • Fix the bug that when the response is nil, the NAT IP and port are not added to the labels of the "DataGroup". (#378)
  • Fix potential deadlock of exited thread delay queue. (#373)
  • Fix the bug that cpuEvent cache size continuously increases even if trace profiling is not enabled.(#362)
  • Fix the bug that duplicate CPU events are indexed into Elasticsearch. (#359)
  • Implement the delay queue for exited thread, so as to avoid losing the data in the period before the thread exits. (#365)
  • Fix the bug of incomplete records when threads arrive at the cpu analyzer for the first time. (#364)

v0.5.0 - 2022-11-02

New features

  • Add a new feature: Trace Profiling. See more details about it on our website. (#335)

Enhancements

  • Add request and response payload of Redis protocol message to Span data. (#325)

Bug fixes

  • Fix the topology node naming error in the default namespace.(#346)
  • Fix the bug that if ReadBytes receives negative numbers as arguments, the program panics with the error of slice outofbound. (#327)

v0.4.1 - 2022-09-21

Enhancements

  • When processing Redis' Requests, add additional labels to describe the key information of the message. Check Metrics Document for more details. (#321)

Bug fixes

  • Fix the bug when the kernel does not support some kprobe, the probe crashes. (#320)

v0.4.0 - 2022-09-19

Enhancements

  • Optimize the log output. (#299)
  • Print logs when subscribing to events. Print a warning message if there is no event the agent subscribes to. (#290)
  • Allow the collector run in the non-Kubernetes environment by setting the option enable false under the k8smetadataprocessor section. (#285)
  • Add a new environment variable: IS_PRINT_EVENT. When the value is true, sinsp events can be printed to the stdout. (#283)
  • Declare the 9500 port in the agent's deployment file (#282)

Bug fixes

  • Avoid printing logs to console when both observability.logger.file_level and observability.logger.console_level are set to none(#316)
  • Fix the userAttributes array out of range error caused by userAttNumber exceeding 8
  • Fix the bug where no HTTP headers were got. (#301)
  • Fix the bug that need_trace_as_span options cannot take effect (#292)
  • Fix connection failure rate data lost when change topology layout in the Grafana plugin. (#289)
  • Fix the bug that the external topologys' metric name is named with kindling_entity_request prefix. Change the prefix of these metrics to kindling_topology_request (#287)
  • Fix the bug where the table name of SQL is missed if there is no trailing character at the end of the table name. (#284)

v0.3.0 - 2022-06-29

New features

  • Add an option name debug_selector to filter debug_log from different components (#300)
  • Add a URL clustering method to reduce the cardinality of the entity metrics. Configuration options are provided to choose which method to use. (#268)
  • Display connection failure metrics in the Grafana-plugin (#255)
  • Add the metrics that describe how many times the TCP connections have been made (#234 #235 #236 #237)
  • Add a histogram aggregator in defaultAggregator (#226)
  • (Experimental) Support Protocol Dubbo2 (#184)

Enhancements

  • Improve the go project layout (#273)
  • Correct the configurations and disable the dubbo protocol parser by default since it is still experimental now. (#270)
  • Implement self-metrics using opentelemetry for cgoreceiver (#269)
  • Use cgo to replace UDS for transferring data from the probe to the collector to improve the performance (#264)
  • Add command labels in tcp connect metrics and span attributes (#260)
  • Use the tcp_close events to generate the srtt metric (#256)
  • Remove the histogram metrics by default to reduce the number of metrics (#253)
  • k8sprocessor: use src IP for further searching if the dst IP is a loopback address (#251)
  • docs:update developer links (#247)
  • Add some self metrics for agent cpu and memory usage (#243)
  • Export the trace of MySQL request when it contains an error (#241)
  • Block in the application instead of the udsreceiver after running (#240)
  • Decouple the logic of dispatching events from receivers (#232)
  • Search for k8s metadata using src_ip when no containerid found (#233)
  • Record the containers with hostport mode and fill the pod information of them in k8sprocessor (#219)
  • Support building Grafana-plugin by using Actions (#218)
  • Improve metrics description doc (#216)
  • Update deployment files needed for releasing (#215)

Bug fixes

  • docs: fix language issues in documents (#258)
  • Fix the bug where the pod information is missed after it is restarted (#245)
  • Grafana-plugin: delete yarn.lock to remove unnecessary dependencies (#244)
  • Fix the bug that the container name is incorrect when multiple containers in the pod don't specify ports by setting it empty. (#238)
  • Fix the bug that sometimes the workload kind is ReplicaSet (#230)
  • Fix "no such file or directory" when using the kubeconfig file. #225
  • Fix several bugs in the Grafana plugin. (#220)

v0.2.0 - 2022-05-07

Features

  • Provide a kindling Prometheus exporter that can support integration with Prometheus easily. See kindling's metrics from the kindling website.
  • Support network performance, DNS performance, service network maps, and workload performance analysis.
  • Support HTTP, MySQL, and REDIS request analysis.
  • Provide a Grafana-plugin with four built-in dashboards to support basic analysis features.