命名空间
Namespace = QCE/POSTGRES
监控指标
指标英文名 | 指标中文名 | 说明 | 单位 | 维度 | 统计规则
[period, statType] |
2pc | 2pc事务数 | 对数据库发起采集时，当前的2pc事务数量 | Count | resourceId | [ 5s, first ]
[ 60s, sum ]
[ 300s, sum ] |
ActiveConns | 活跃连接数 | 对数据库发起采集时，数据库瞬时活跃连接（非 idle 连接） | Count | resourceId | [ 5s, first ]
[ 60s, max ]
[ 300s, max ] |
ClusterInFlow | 网络入流量 | 数据库实例监听端口上的入流量 | KBytes/s | resourceId | [ 5s, first ]
[ 60s, max ]
[ 300s, max ] |
ClusterOutFlow | 网络出流量 | 数据库实例监听端口上的出流量 | KBytes/s | resourceId | [ 5s, first ]
[ 60s, max ]
[ 300s, max ] |
Connections | 连接数 | 对数据库发起采集时，数据库当前总连接数 | count | resourceId | [ 5s, first ]
[ 60s, avg ]
[ 300s, avg ]
[ 3600s, avg ]
[ 86400s, avg ] |
ConnUtilization | 连接利用率 | 当前实例连接数 / 最大连接数 | % | resourceId | [ 5s, first ]
[ 60s, max ]
[ 300s, max ] |
Cpu | CPU利用率 | CPU实际利用率 | % | resourceId | [ 5s, first ]
[ 60s, max ]
[ 300s, max ]
[ 3600s, max ]
[ 86400s, max ] |
DataFileSize | 数据文件大小 | 数据文件占用空间大小 | KBytes | resourceId | [ 5s, max ]
[ 60s, max ]
[ 300s, max ] |
Deadlocks | 死锁数 | 一个统计周期内的所有死锁数 | Count | resourceId | [ 5s, first ]
[ 60s, max ]
[ 300s, max ] |
FlushLatency | 备库日志落盘延迟 | 备库落盘LSN与主实例当前LSN之间的大小差异，对于主实例而言，此指标可以体现出故障切换的数据丢失大小，对于只读实例而言，此指标可以体现出数据延迟大小 | Bytes | resourceId | [ 60s, max ]
[ 300s, max ] |
HitPercent | 缓冲区缓存命中率 | 一个统计周期内的所有 SQL 语句执行的命中率 | % | resourceId | [ 5s, first ]
[ 60s, max ]
[ 300s, max ]
[ 3600s, max ]
[ 86400s, max ] |
IdleConns | 空闲连接数 | 对数据库发起采集时，查询出来的数据库瞬时空闲连接（idle 连接） | Count | resourceId | [ 5s, first ]
[ 60s, avg ]
[ 300s, avg ] |
IdleInXact | 空闲事务数 | 对数据库发起采集时，数据库正在处于 idle in transaction 状态的事务数量 | Count | resourceId | [ 5s, first ]
[ 60s, max ]
[ 300s, max ] |
LogFileSize | 日志文件大小 | wal 日志文件占用空间大小 | KBytes | resourceId | [ 5s, first ]
[ 60s, max ]
[ 300s, max ] |
Long2pc | 超过5s未提交的2PC事务数 | 对数据库发起采集时，当前执行时间超过5s的2pc事务数量 | Count | resourceId | [ 5s, first ]
[ 60s, max ]
[ 300s, max ] |
LongIdleInXact | 超过5秒的空闲事务数 | 对数据库发起采集时，状态处于idle in transaction且时间超过5秒的事务数量 | Count | resourceId | [ 5s, first ]
[ 60s, max ]
[ 300s, max ] |
LongQuery | 执行时长超过1秒的SQL数 | 对数据库发起采集时，正在执行且执行时间超过1s的 SQL 数量 | Count | resourceId | [ 5s, first ]
[ 60s, max ]
[ 300s, max ] |
LongWaiting | 等待超过5s的会话数 | 对数据库发起采集时，数据库正在等待且超过5秒的会话数量（状态为 waiting） | Count | resourceId | [ 5s, first ]
[ 60s, max ]
[ 300s, max ] |
LongXact | 执行时长超过1秒的事务数目 | 对数据库发起采集时，执行时间超过1秒的事务数量 | Count | resourceId | [ 5s, first ]
[ 60s, max ]
[ 300s, max ] |
Memory | 内存占用量 | 内存实际使用量 | MBytes | resourceId | [ 5s, first ]
[ 60s, max ]
[ 300s, max ] |
MemoryRate | 内存使用率 | 内存实际使用率 | % | resourceId | [ 5s, first ]
[ 60s, max ]
[ 300s, max ] |
NewConnIn5s | 5秒内新建连接数 | 对数据库发起采集时，查询出最近5秒内建立的所有连接数 | Count | resourceId | [ 5s, first ]
[ 60s, max ]
[ 300s, max ] |
OtherCalls | 其他请求数 | 一个统计周期内的其他请求数（除SELECT, INSERT, UPDATE, DELETE以外的请求数） | Count | resourceId | [ 5s, first ]
[ 60s, sum ]
[ 300s, sum ]
[ 3600s, sum ]
[ 86400s, avg ] |
Qps | 每秒查询数 | 平均每秒执行的 SQL 语句数量 | count/s | resourceId | [ 5s, first ]
[ 60s, max ]
[ 300s, max ]
[ 3600s, max ]
[ 86400s, max ] |
ReadCalls | 读请求数 | 一个统计周期内的读请求数 | Count | resourceId | [ 5s, first ]
[ 60s, sum ]
[ 300s, sum ]
[ 3600s, sum ]
[ 86400s, max ] |
ReadWriteCalls | 读写请求数 | 一个统计周期内的读写请求数 | Count | resourceId | [ 5s, first ]
[ 60s, sum ]
[ 300s, sum ]
[ 3600s, sum ]
[ 86400s, avg ] |
RemainXid | 剩余XID数量 | 对数据库发起采集时，显示当前剩余 xid 最少的库的剩余 xid 数量。只读实例无此指标 | count | resourceId | [ 5s, first ]
[ 60s, min ]
[ 300s, min ]
[ 3600s, min ]
[ 86400s, min ] |
ReplayLag | 主备数据同步延迟时间 | 日志从主库发送至备库与备库接收到日志并回放之间的时间差异。实例版本在10.x以上版本才有此指标 | s | resourceId | [ 60s, max ]
[ 300s, max ] |
SlaveApplyDelay | 主备数据同步延迟 | 备库回放LSN与主实例当前LSN之间的大小差异，对于主实例而言，此指标可以体现出故障切换的 RTO，对于只读实例而言，此指标可以体现出数据延迟大小 | Bytes | resourceId | [ 5s, first ]
[ 60s, max ]
[ 300s, max ] |
SlowQueryCnt | 慢查询数量 | 一个统计周期内的慢查询个数 | Count | resourceId | [ 5s, first ]
[ 60s, max ]
[ 300s, max ] |
SqlRuntimeAvg | 平均执行时延 | 一次统计周期内所有 SQL 语句的平均执行时延 | ms | resourceId | [ 5s, first ]
[ 60s, avg ]
[ 300s, avg ]
[ 3600s, avg ]
[ 86400s, avg ] |
SqlRuntimeMax | 最长TOP10执行时延 | 一次统计周期内最长 TOP10 的 SQL 平均执行时延 | ms | resourceId | [ 5s, first ]
[ 60s, avg ]
[ 300s, avg ]
[ 3600s, avg ]
[ 86400s, avg ] |
SqlRuntimeMin | 最短TOP10执行时延 | 一次统计周期内最短 TOP10 的 SQL 平均执行时延 | ms | resourceId | [ 5s, first ]
[ 60s, avg ]
[ 300s, avg ]
[ 3600s, avg ]
[ 86400s, avg ] |
Storage | 已用存储空间 | 整实例空间占用大小 | GB | resourceId | [ 5s, first ]
[ 60s, max ]
[ 300s, max ]
[ 3600s, max ]
[ 86400s, max ] |
StorageRate | 存储空间使用率 | 总的存储空间使用率，包括临时文件、数据文件、日志文件以及其他类型的数据库文件 | % | resourceId | [ 5s, first ]
[ 60s, max ]
[ 300s, max ]
[ 3600s, max ]
[ 86400s, max ] |
TempFileSize | 临时文件大小 | 临时文件的大小 | KBytes | resourceId | [ 5s, max ]
[ 60s, max ]
[ 300s, max ] |
Throughput | 吞吐率 | 实例每秒读写磁盘速度 | KBytes/s | resourceId | [ 5s, first ]
[ 60s, max ]
[ 300s, max ] |
ThroughputRead | 读吞吐率 | 实例每秒读磁盘速度 | KBytes/s | resourceId | [ 5s, first ]
[ 60s, max ]
[ 300s, max ] |
ThroughputWrite | 写吞吐率 | 实例每秒写磁盘速度 | KBytes/s | resourceId | [ 5s, first ]
[ 60s, max ]
[ 300s, max ] |
Tps | 每秒事务数 | 平均每秒执行成功的事务数（包括回滚和提交） | Count/s | resourceId | [ 5s, first ]
[ 60s, avg ]
[ 300s, avg ] |
TupDeleted | 每秒删除记录数 | 一个统计周期内的平均每秒删除的 tuple 数量 | Count/s | resourceId | [ 5s, first ]
[ 60s, max ]
[ 300s, max ] |
TupFetched | 每秒索引扫描记录数 | 一个统计周期内的平均每秒索引扫描的 tuple 数量 | Count/s | resourceId | [ 5s, first ]
[ 60s, max ]
[ 300s, max ] |
TupInserted | 每秒插入记录数 | 一个统计周期内的平均每秒插入的 tuple 数量 | Count/s | resourceId | [ 5s, first ]
[ 60s, max ]
[ 300s, max ] |
TupReturned | 每秒全表扫描记录数 | 一个统计周期内的平均每秒全表扫描的 tuple 数量 | Count/s | resourceId | [ 5s, first ]
[ 60s, max ]
[ 300s, max ] |
TupUpdated | 每秒更新记录数 | 一个统计周期内的平均每秒更新的 tupe 数量 | Count/s | resourceId | [ 5s, first ]
[ 60s, max ]
[ 300s, max ] |
Waiting | 等待会话数 | 对数据库发起采集时，数据库正在等待的会话数量（状态为 waiting） | Count | resourceId | [ 5s, first ]
[ 60s, max ]
[ 300s, max ] |
WriteCalls | 写请求数 | 一个统计周期内的写请求数 | Count | resourceId | [ 5s, first ]
[ 60s, sum ]
[ 300s, sum ]
[ 3600s, avg ]
[ 86400s, avg ] |
XactCommit | 事务提交数 | 一个统计周期内的平均每秒提交事务数 | Count/s | resourceId | [ 5s, first ]
[ 60s, max ]
[ 300s, max ] |
XactRollback | 事务回滚数 | 一个统计周期内的平均每秒回滚事务数 | Count/s | resourceId | [ 5s, first ]
[ 60s, max ]
[ 300s, max ] |
XlogDiff | 备库日志发送与回放位置差异 | 日志从主库发送至备库与备库回放完成之间的大小差异，主要反映了备库日志应用的速度，主要能够通过此指标查看出备库的性能、网络传输的速度。只读实例无此指标 | Byte/s | resourceId | [ 5s, first ]
[ 60s, max ]
[ 300s, max ]
[ 3600s, max ]
[ 86400s, max ] |
XlogDiffTime | 备库日志落盘时间延迟 | 日志从主库发送至备库与备库接收到日志并落盘之间的时间差异。只读实例无此指标，且实例版本在10.x以上版本才有此指标 | s | resourceId | [ 5s, first ]
[ 60s, max ]
[ 300s, max ] |
说明
各维度对应参数总览
参数名称 | 维度名称 | 维度解释 | 格式 |
Instances.N.Dimensions.0.Name | resourceId | resourceId 维度名称 | 输入 String 类型维度名称：resourceId |
Instances.N.Dimensions.0.Value | resourceId | 实例具体的 resourceId | 输入实例的具体 resourceId，例如：postgres-123456 |
入参说明
查询 PostgreSQL 监控数据，入参取值如下：
&Namespace=QCE/POSTGRES
&Instances.N.Dimensions.0.Name=resourceId
&Instances.N.Dimensions.0.Value=实例的 resourceId
