Counter The size of data read from the disk during initial scan. In Linux, this information is from procfs, which is the size of data actually read from the block device. The configuration item initial-scan-rate-limit when Raft Engine is enabled #12698 @tabokie • Avoid redundant log warnings when proc filesystem (procfs) cannot be found #13116 @tabokie • Fix the wrong expression of Unified Read Pool CPU in dashboard increasing the write batch size when performing GC to Raft logs #11404 • Update the proc filesystem (procfs) to v0.12.0 #11702 • PD • Optimize the content format of the DR_STATE file #4341 • Tools • TiCDC

Counter The size of data read from the disk during initial scan. In Linux, this information is from procfs, which is the size of data actually read from the block device. The configuration item initial-scan-rate-limit when Raft Engine is enabled #12698 @tabokie • Avoid redundant log warnings when proc filesystem (procfs) cannot be found #13116 @tabokie • Fix the wrong expression of Unified Read Pool CPU in dashboard increasing the write batch size when performing GC to Raft logs #11404 • Update the proc filesystem (procfs) to v0.12.0 #11702 • PD • Optimize the content format of the DR_STATE file #4341 • Tools • TiCDC

Counter The size of data read from the disk during initial scan. In Linux, this information is from procfs, which is the size of data actually read from the block device. The configuration item initial-scan-rate-limit when Raft Engine is enabled #12698 @tabokie • Avoid redundant log warnings when proc filesystem (procfs) cannot be found #13116 @tabokie • Fix the wrong expression of Unified Read Pool CPU in dashboard increasing the write batch size when performing GC to Raft logs #11404 • Update the proc filesystem (procfs) to v0.12.0 #11702 • PD • Optimize the content format of the DR_STATE file #4341 • Tools • TiCDC

Counter The size of data read from the disk during initial scan. In Linux, this information is from procfs, which is the size of data actually read from the block device. The configuration item initial-scan-rate-limit when Raft Engine is enabled #12698 @tabokie • Avoid redundant log warnings when proc filesystem (procfs) cannot be found #13116 @tabokie • Fix the wrong expression of Unified Read Pool CPU in dashboard increasing the write batch size when performing GC to Raft logs #11404 • Update the proc filesystem (procfs) to v0.12.0 #11702 • PD • Optimize the content format of the DR_STATE file #4341 • Tools • TiCDC

Counter The size of data read from the disk during initial scan. In Linux, this information is from procfs, which is the size of data actually read from the block device. The configuration item initial-scan-rate-limit when Raft Engine is enabled #12698 @tabokie • Avoid redundant log warnings when proc filesystem (procfs) cannot be found #13116 @tabokie • Fix the wrong expression of Unified Read Pool CPU in dashboard increasing the write batch size when performing GC to Raft logs #11404 • Update the proc filesystem (procfs) to v0.12.0 #11702 • PD • Optimize the content format of the DR_STATE file #4341 • Tools • TiCDC

Region 级别。 tikv_log_backup_initial_scan_disk_readCounter 增量扫期间，从硬盘读取的数据量的大小。在 Linux 系统下，这个信 息来自于 procfs，是实际从 block device 读取的数据量的大小；配置项 initial-scan-rate-limit 也是施加于这个数值上。 tikv_log_backup_incremental_scan_bytes @Connor1996 – 修复启用 Raft Engine 后特殊情况下 TiKV 会 panic 的问题 #12698 @tabokie – 修复无法找到 proc filesystem (procfs) 时警告级别日志过多的问题 #13116 @tabokie – 修复 Dashboard 中 Unified Read Pool CPU 表达式错误的问题 #13086 @glorv – 修复 #11993 – 通过增加对 Raft log 进行垃圾回收 (GC) 时的 write batch 大小来加快 GC 速度 #11404 4780 – 将 proc filesystem (procfs) 升级至 0.12.0 版本 #11702 • PD – 优化 DR_STATE 文件内容的格式 #4341 • Tools – TiCDC * 暴露 Kafka producer 配置参数，使之在

Region 级别。 tikv_log_backup_initial_scan_disk_readCounter 增量扫期间，从硬盘读取的数据量的大小。在 Linux 系统下，这个信 息来自于 procfs，是实际从 block device 读取的数据量的大小；配置项 initial-scan-rate-limit 也是施加于这个数值上。 tikv_log_backup_incremental_scan_bytes @Connor1996 – 修复启用 Raft Engine 后特殊情况下 TiKV 会 panic 的问题 #12698 @tabokie – 修复无法找到 proc filesystem (procfs) 时警告级别日志过多的问题 #13116 @tabokie – 修复 Dashboard 中 Unified Read Pool CPU 表达式错误的问题 #13086 @glorv – 修复 #11993 – 通过增加对 Raft log 进行垃圾回收 (GC) 时的 write batch 大小来加快 GC 速度 #11404 4695 – 将 proc filesystem (procfs) 升级至 0.12.0 版本 #11702 • PD – 优化 DR_STATE 文件内容的格式 #4341 • Tools – TiCDC * 暴露 Kafka producer 配置参数，使之在

Region 级别。 tikv_log_backup_initial_scan_disk_readCounter 增量扫期间，从硬盘读取的数据量的大小。在 Linux 系统下，这个信 息来自于 procfs，是实际从 block device 读取的数据量的大小；配置项 initial-scan-rate-limit 也是施加于这个数值上。 tikv_log_backup_incremental_scan_bytes @Connor1996 – 修复启用 Raft Engine 后特殊情况下 TiKV 会 panic 的问题 #12698 @tabokie – 修复无法找到 proc filesystem (procfs) 时警告级别日志过多的问题 #13116 @tabokie – 修复 Dashboard 中 Unified Read Pool CPU 表达式错误的问题 #13086 @glorv – 修复 #11993 – 通过增加对 Raft log 进行垃圾回收 (GC) 时的 write batch 大小来加快 GC 速度 #11404 4800 – 将 proc filesystem (procfs) 升级至 0.12.0 版本 #11702 • PD – 优化 DR_STATE 文件内容的格式 #4341 • Tools – TiCDC * 暴露 Kafka producer 配置参数，使之在

，如编码格式和行结束符等将被忽略。 返回值是复制的字节的数目。这可能低于需求的数目。 � 备注 在 Linux 上，os.copy_file_range() 不应被用于从特殊的文件系统如 procfs 和 sysfs 复制特定 范围的伪文件。因为已知的 Linux 内核问题它将总是不复制任何字节并返回 0 就像文件是空的 一样。 Availability: Linux >= 4.5 with

，如编码格式和行结束符等将被忽略。 返回值是复制的字节的数目。这可能低于需求的数目。 � 备注 在 Linux 上，os.copy_file_range() 不应被用于从特殊的文件系统如 procfs 和 sysfs 复制特定 范围的伪文件。因为已知的 Linux 内核问题它将总是不复制任何字节并返回 0 就像文件是空的 一样。 Availability: Linux >= 4.5 with