发布日期: 2024-12-30
版本号: v3.1.0-rc.1

自RC.0版本以来，修复了可能导致程序退出时段错误的漏洞（#15724），并允许OTLP接收器在非标准单位中使用冒号（#15710）。RC.0版本包含以下更新：安全方面升级了golang.org/x/crypto以解决CVE-2024-45337漏洞（#15691）；变更通知系统调整为按受影响告警数量统计错误指标（#15428），API规则列表字段重命名（#15400）；功能增强包括优化OTLP元数据保留（#15448）、规则分组分页加载（#15677）、标签存储空间计算（#13880）、新增规则耗时指标（#15672）、导出互斥锁等待指标（#15339）、支持随机DNS解析（#15329）；性能优化涉及正则匹配（#15474）、TSDB符号缓存（#15455）、内存分配优化（#15465）、逆匹配算法（#14144）等17项改进；错误修复涵盖规则并发执行（#15560）、抓取崩溃（#15563）、远程写入日志异常（#15562）、直方图配置加载（#15489）、元数据转换（#15416）、PromQL函数对直方图的处理（#15527）等21项问题，涉及数据一致性、指标解析、UI显示异常等多个方面。

更新内容 （中文）

自 RC.0 起：

  • [BUGFIX] 避免退出时可能出现的段错误 (#15724)
  • [BUGFIX] OTLP接收器：允许在非标准单位中使用冒号。#15710

包含于 RC.0：

  • [SECURITY] 升级 golang.org/x/crypto 以解决报告的 CVE-2024-45337。#15691
  • [CHANGE] 通知器：按受影响警报的数量递增 prometheus_notifications_errors_total，而非每批次递增。#15428
  • [CHANGE] API：将规则列表字段 "groupNextToken:omitempty" 重命名为 "groupNextToken"。#15400
  • [ENHANCEMENT] OTLP翻译：在 target_info 中保留标识属性。#15448
  • [ENHANCEMENT] 分页规则组，为组内规则添加无限滚动功能。#15677
  • [ENHANCEMENT] TSDB：改进标签空间占用的计算方式。#13880
  • [ENHANCEMENT] 规则：新增指标 rule_group_last_rule_duration_sum_seconds。#15672
  • [ENHANCEMENT] 可观测性：导出 ‘go_sync_mutex_wait_total_seconds_total’ 指标。#15339
  • [ENHANCEMEN] 远程写入：可选使用随机IP的DNS解析器。#15329
  • [PERF] 优化 l=~\".+\" 匹配器。#15474, #15684
  • [PERF] TSDB：为压缩操作缓存所有符号。#15455
  • [PERF] TSDB：MemPostings 保留标签值切片的映射。#15426
  • [PERF] TSDB：减少内存分配次数。#15465, #15427
  • [PERF] TSDB：优化反向匹配。#14144
  • [PERF] TSDB：删除postings索引时暂停解锁以允许读取操作。#15242
  • [PERF] 抓取：优化使用自定义分桶的实验性原生直方图的字符串操作。#15453
  • [PERF] 存储：在 mergeGenericQuerier 中实现限制。#14489
  • [PERF] 正则表达式：使用栈内存进行字符串小写转换。#15210
  • [PERF] 远程写入：移除 interning hook。#15456
  • [BUGFIX] 规则：在依赖关系不确定时不并发执行规则。#15560
  • [BUGFIX] 抓取：修复重新加载抓取循环后的空指针panic。#15563
  • [BUGFIX] 远程写入：修复重复日志消息导致的panic。#15562
  • [BUGFIX] 抓取：重新加载时忽略 always_scrape_classic_histograms 和 convert_classic_histograms_to_nhcb 配置。#15489
  • [BUGFIX] TSDB：修复实验性原生直方图的数据损坏问题。#15482
  • [BUGFIX] OTLP接收器：转换元数据指标。#15416
  • [BUGFIX] 允许在openmetrics文本格式中使用带引号的样本键。#15260
  • [BUGFIX] PromQL：round() 函数未移除 __name__ 标签。#15250
  • [BUGFIX] PromQL：修复涉及UTF-8字符引用的多个问题。#15531
  • [BUGFIX] PromQL：修复直方图的 resets 函数。#15527
  • [BUGFIX] PromQL：修复 changes() 在混合直方图和浮点数时的行为。#15469
  • [BUGFIX] PromQL：修复部分聚合操作对直方图的处理。#15432
  • [BUGFIX] PromQL：修复直方图的 count_values 函数。#15422
  • [BUGFIX] PromQL：修复带 bool 修饰符的比较二元操作与原生直方图的兼容性问题。#15413
  • [BUGFIX] PromQL：修正"原生直方图在聚合中被忽略"的错误标注。#15414
  • [BUGFIX] PromQL：修正部分运算符和聚合器对原生直方图的行为。#15245
  • [BUGFIX] PromQL：Clamp函数：忽略包含原生直方图的数据点。#15169
  • [BUGFIX] PromQL：在所有时间相关函数中忽略直方图。#15479
  • [BUGFIX] Promtool：分析块显示指标名称的基数为0。#15438
  • [BUGFIX] TSDB：修复加载写前日志(WBL)时的罕见情况。#15380
  • [BUGFIX] TSDB：始终为非计量直方图块中的第一个样本返回未知提示。#15343
  • [BUGFIX] TSDB：修复 headAppender 中陈旧值的竞态问题。#15322
  • [BUGFIX] UI：修复空指标名称的选择器/序列格式化问题。#15340

更新内容 （原始）

Since RC.0:

  • [BUGFIX] avoid possible segfault at exit. (#15724)
  • [BUGFIX] OTLP receiver: Allow colons in non-standard units. #15710

Included in RC.0:

  • [SECURITY] upgrade golang.org/x/crypto to address reported CVE-2024-45337. #15691
  • [CHANGE] Notifier: Increment prometheus_notifications_errors_total by the number of affected alerts rather than per batch. #15428
  • [CHANGE] API: list rules field “groupNextToken:omitempty” renamed to “groupNextToken”. #15400
  • [ENHANCEMENT] OTLP translate: keep identifying attributes in target_info. #15448
  • [ENHANCEMENT] Paginate rule groups, add infinite scroll to rules within groups. #15677
  • [ENHANCEMENT] TSDB: Improve calculation of space used by labels. #13880
  • [ENHANCEMENT] Rules: new metric rule_group_last_rule_duration_sum_seconds. #15672
  • [ENHANCEMENT] Observability: Export ‘go_sync_mutex_wait_total_seconds_total’ metric. #15339
  • [ENHANCEMEN] Remote-Write: optionally use a DNS resolver that picks a random IP. #15329
  • [PERF] Optimize l=~".+" matcher. #15474, #15684
  • [PERF] TSDB: Cache all symbols for compaction . #15455
  • [PERF] TSDB: MemPostings: keep a map of label values slices. #15426
  • [PERF] TSDB: reduce memory allocations. #15465, #15427
  • [PERF] TSDB: Optimize inverse matching. #14144
  • [PERF] TSDB: When deleting from postings index, pause to unlock and let readers read. #15242
  • [PERF] Scrape: optimize string manipulation for experimental native histograms with custom buckets. #15453
  • [PERF] Storage: Implement limit in mergeGenericQuerier. #14489
  • [PERF] Regex: use stack memory for lowercase copy of string. #15210
  • [PERF] Remote-Write: Remove interning hook. #15456
  • [BUGFIX] Rules: Do not run rules concurrently if uncertain about dependencies. #15560
  • [BUGFIX] Scrape: fix nil panic after scrape loop reload. #15563
  • [BUGFIX] Remote-write: fix panic on repeated log message. #15562
  • [BUGFIX] Scrape: reload would ignore always_scrape_classic_histograms and convert_classic_histograms_to_nhcb configs. #15489
  • [BUGFIX] TSDB: fix data corruption in experimental native histograms. #15482
  • [BUGFIX] OTLP receiver: Convert metric metadata. #15416
  • [BUGFIX] allow quoted exemplar keys in openmetrics text format. #15260
  • [BUGFIX] PromQL: round() function did not remove __name__ label. #15250
  • [BUGFIX] PromQL: Fix various bugs related to quoting UTF-8 characters. #15531
  • [BUGFIX] PromQL: Fix resets function for histograms. #15527
  • [BUGFIX] PromQL: Fix behaviour of changes() for mix of histograms and floats. #15469
  • [BUGFIX] PromQL: Fix behaviour of some aggregations with histograms. #15432
  • [BUGFIX] PromQL: Fix count_values for histograms. #15422
  • [BUGFIX] PromQL: fix issues with comparison binary operations with bool modifier and native histograms. #15413
  • [BUGFIX] PromQL: fix incorrect “native histogram ignored in aggregation” annotations. #15414
  • [BUGFIX] PromQL: Corrects the behaviour of some operator and aggregators with Native Histograms. #15245
  • [BUGFIX] PromQL: Clamp functions: Ignore any points with native histograms. #15169
  • [BUGFIX] PromQL: Ignore histograms in all time related functions. #15479
  • [BUGFIX] Promtool: analyze block shows metric name with 0 cardinality. #15438
  • [BUGFIX] TSDB: fixes for rare conditions when loading write-behind-log (WBL). #15380
  • [BUGFIX] TSDB: Always return unknown hint for first sample in non-gauge histogram chunk. #15343
  • [BUGFIX] TSDB: Fix race on stale values in headAppender. #15322
  • [BUGFIX] UI: Fix selector / series formatting for empty metric names. #15340

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