发布日期: 2024-10-22
版本号: v2.55.0

本次Prometheus更新主要包含以下内容：新增多项实验性功能，包括PromQL的info函数、支持UTF-8标签名的utf8-names功能标志、抓取配置中自定义HTTP头设置能力、OpenMetrics的零值时间戳功能等。优化方面，改进了OTLP接收器的资源属性转换逻辑、远程读取流式传输支持、PromQL的标签删除延迟机制及数值精度算法。性能提升着重于TSDB对顺序与非顺序时序数据的混合查询效率。错误修复涉及服务发现模块的目标管理问题、远程写入元数据异常、直方图数据处理错误等。此外，API现支持多监听地址，工具链新增标签添加和测试报告格式选项。本次版本还迎来9位新贡献者的首次代码提交。

更新内容 （中文）

更新内容

  • [功能] PromQL: 新增实验性 info 函数 #14495
  • [功能] 支持标签名称使用 UTF-8 字符 - 特性标志 utf8-names #14482 #14880 #14736 #14727
  • [功能] 抓取: 新增配置中设置自定义 http_headers 的能力 #14817
  • [功能] 抓取: OpenMetrics 中支持特性标志 created-timestamp-zero-ingestion #14356 #14815
  • [功能] 抓取: scrape_failure_log_file 选项可将抓取失败记录至文件 #14734
  • [功能] OTLP 接收器: 资源属性可选提升为时序标签 #14200
  • [功能] 远程写入: 支持 Google Cloud Monitoring 授权 #14346
  • [功能] Promtool: tsdb create-blocks 新增添加标签选项 #14403
  • [功能] Promtool: promtool test 新增 --junit 结果格式化标志 #14506
  • [功能] TSDB: 新增 delayed-compaction 特性标志用于多 Prometheus 实例运行时序压缩随机化 #12532
  • [优化] OTLP 接收器: 对零计数但非零总和的指数直方图发出警告 #14706
  • [优化] OTLP 接收器: 上下文取消/超时时中断转换流程 #14612
  • [优化] 远程读取客户端: 若服务端支持则启用流式远程读取 #11379
  • [优化] 远程写入: 若自上次更新后未成功发送样本则不进行分片重组 #14450
  • [优化] PromQL: 将 __name__ 标签删除延迟至查询评估最后阶段（实验性功能，需启用 promql-delayed-name-removal 标志） #14477
  • [优化] PromQL: 实验性函数 sort_by_label 和 sort_by_label_desc 在标签相等时按所有标签排序 #14655 #14985
  • [优化] PromQL: 明确查询评估期间发生 Go 运行时 panic 的错误日志信息 #14621
  • [优化] PromQL: 使用 Kahan 求和算法提升 avg 和 avg_over_time 计算精度 #14413
  • [优化] 追踪: 改进 PromQL 追踪功能，展示聚合/运算符/函数调用操作 #14816
  • [优化] API: 支持多监听地址 #14665
  • [优化] TSDB: 与即将发布的索引 v3 版本保持向后兼容 #14934
  • [性能] TSDB: 同时查询顺序与乱序时序 #14354 #14693 #14714 #14831 #14874 #14948 #15120
  • [性能] TSDB: 优化重叠乱序头块读取流程 #14729
  • [问题修复] PromQL: 确保 sort_by_label 排序稳定性 #14985
  • [问题修复] 服务发现: 修复目标丢失问题（需启用 new-service-discovery-manager 特性标志） #13147
  • [问题修复] 服务发现: 停止存储陈旧目标（需启用 new-service-discovery-manager 特性标志） #13622
  • [问题修复] 抓取: protobuf 抓取可能丢弃样本范例的问题 #14810
  • [问题修复] 远程写入: 修复实验性远程写入 V2 的元数据发送问题 #14766
  • [问题修复] 远程写入: 当时序存在重复标签时返回 4xx 而非 5xx 错误 #14716
  • [问题修复] 实验性原生直方图: 修复多个结果错误/panic/告警问题 #14513 #14575 #14598 #14609 #14611 #14771 #14821
  • [问题修复] TSDB: 仅统计未知记录类型的 record_decode_failures_total 指标 #14042

新贡献者

完整更新日志: https://github.com/prometheus/prometheus/compare/v2.54.1...v2.55.0

更新内容 （原始）

What’s Changed

  • [FEATURE] PromQL: Add experimental info function. #14495
  • [FEATURE] Support UTF-8 characters in label names - feature flag utf8-names. #14482, #14880, #14736, #14727
  • [FEATURE] Scraping: Add the ability to set custom http_headers in config. #14817
  • [FEATURE] Scraping: Support feature flag created-timestamp-zero-ingestion in OpenMetrics. #14356, #14815
  • [FEATURE] Scraping: scrape_failure_log_file option to log failures to a file. #14734
  • [FEATURE] OTLP receiver: Optional promotion of resource attributes to series labels. #14200
  • [FEATURE] Remote-Write: Support Google Cloud Monitoring authorization. #14346
  • [FEATURE] Promtool: tsdb create-blocks new option to add labels. #14403
  • [FEATURE] Promtool: promtool test adds --junit flag to format results. #14506
  • [FEATURE] TSDB: Add delayed-compaction feature flag, for people running many Prometheus to randomize timing. #12532
  • [ENHANCEMENT] OTLP receiver: Warn on exponential histograms with zero count and non-zero sum. #14706
  • [ENHANCEMENT] OTLP receiver: Interrupt translation on context cancellation/timeout. #14612
  • [ENHANCEMENT] Remote Read client: Enable streaming remote read if the server supports it. #11379
  • [ENHANCEMENT] Remote-Write: Don’t reshard if we haven’t successfully sent a sample since last update. #14450
  • [ENHANCEMENT] PromQL: Delay deletion of __name__ label to the end of the query evaluation. This is experimental and enabled under the feature-flag promql-delayed-name-removal. #14477
  • [ENHANCEMENT] PromQL: Experimental sort_by_label and sort_by_label_desc sort by all labels when label is equal. #14655, #14985
  • [ENHANCEMENT] PromQL: Clarify error message logged when Go runtime panic occurs during query evaluation. #14621
  • [ENHANCEMENT] PromQL: Use Kahan summation for better accuracy in avg and avg_over_time. #14413
  • [ENHANCEMENT] Tracing: Improve PromQL tracing, including showing the operation performed for aggregates, operators, and calls. #14816
  • [ENHANCEMENT] API: Support multiple listening addresses. #14665
  • [ENHANCEMENT] TSDB: Backward compatibility with upcoming index v3. #14934
  • [PERF] TSDB: Query in-order and out-of-order series together. #14354, #14693, #14714, #14831, #14874, #14948, #15120
  • [PERF] TSDB: Streamline reading of overlapping out-of-order head chunks. #14729
  • [BUGFIX] PromQL: make sort_by_label stable. #14985
  • [BUGFIX] SD: Fix dropping targets (with feature flag new-service-discovery-manager). #13147
  • [BUGFIX] SD: Stop storing stale targets (with feature flag new-service-discovery-manager). #13622
  • [BUGFIX] Scraping: exemplars could be dropped in protobuf scraping. #14810
  • [BUGFIX] Remote-Write: fix metadata sending for experimental Remote-Write V2. #14766
  • [BUGFIX] Remote-Write: Return 4xx not 5xx when timeseries has duplicate label. #14716
  • [BUGFIX] Experimental Native Histograms: many fixes for incorrect results, panics, warnings. #14513, #14575, #14598, #14609, #14611, #14771, #14821
  • [BUGFIX] TSDB: Only count unknown record types in record_decode_failures_total metric. #14042

New Contributors

Full Changelog: https://github.com/prometheus/prometheus/compare/v2.54.1...v2.55.0

下载链接