sysutil

sysutil is a library which implementats the gRPC service Diagnostics and shares the diagnostics functions between TiDB and PD.

Search log

The semantics of the log search service is: search for local log files, and filter using predicates, and then return the matched results.

The following are the predicates that the log interface needs to process:

start_time: start time of the log retrieval (Unix timestamp, in milliseconds). If there is no such predicate, the default is 0.
end_time:: end time of the log retrieval (Unix timestamp, in milliseconds). If there is no such predicate, the default is int64::MAX.
pattern: filter pattern determined by the keyword. For example, SELECT * FROM tidb_cluster_log WHERE "%gc%" %gc% is the filtered keyword.
level: log level; can be selected as DEBUG/INFO/WARN/WARNING/TRACE/CRITICAL/ERROR
limit: the maximum of logs items to return, preventing the log from being too large and occupying a large bandwidth of the network.. If not specified, the default limit is 64k.

System information collect

Hardware

CPU
NIC
Disk
Memory

System

sysctl
process list

Load

CPU
Memory
NIC
Disk IO