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v2.1

Documentation:v2.1

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GLOBAL_FILE_REDO_IOSTAT

GLOBAL_FILE_REDO_IOSTAT records statistics about redo logs and WALs on each node in MogDB.

Table 1 GLOBALXC_FILE_REDO_IOSTAT columns

Name Type Description
node_name name Node name
phywrts bigint Number of times writing into the WAL buffer
phyblkwrt bigint Number of blocks written into the WAL buffer
writetim bigint Duration of writing into XLOG files (unit: μs)
avgiotim bigint Average duration of writing into XLOG files (unit: μs). avgiotim = writetim/phywrts
lstiotim bigint Duration of the last writing into XLOG files (unit: μs)
miniotim bigint Minimum duration of writing into XLOG files (unit: μs)
maxiowtm bigint Maximum duration of writing into XLOG files (unit: μs)
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