[[metric:wal_bytes]]

观测区间内生成的 WAL 字节数。

被哪些等待事件引用

• Activity/RecoveryWalStream
• Activity/WalReceiverMain
• Activity/WalSenderMain
• Activity/WalSummarizerWal
• Activity/WalWriterMain
• Client/LibpqwalreceiverConnect
• Client/LibpqwalreceiverReceive
• Client/WalSenderWaitForWal
• Client/WalSenderWriteData
• IO/WalBootstrapSync
• IO/WalBootstrapWrite
• IO/WalCopyRead
• IO/WalCopySync
• IO/WalCopyWrite
• IO/WalInitSync
• IO/WalInitWrite
• IO/WalRead
• IO/WalSummaryRead
• IO/WalSummaryWrite
• IO/WalSync
• IO/WalSyncMethodAssign
• IO/WalWrite
• IO/WalsenderTimelineHistoryRead
• IPC/BackupWaitWalArchive
• IPC/WalReceiverExit
• IPC/WalReceiverUpstreamCatchup
• IPC/WalReceiverWaitStart
• IPC/WalSummaryReady
• LWLock/WALBufMapping
• LWLock/WALInsert
• LWLock/WALSummarizer
• Timeout/WalSummarizerError