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tidb.log 中可以 grep 到事故发生后附近时间的 "Welcome to TiDB" 的日志(即 TiDB server 发生重启)。 tidb_stderr.log 中能 grep 到fatal error: "runtime: out of memory" 或"cannot allocate memory"。 v2.1.8 及其之前的版本,tidb_stderr.log 中能 grep 到fatal error: stack overflow。 监控:TiDB...
Using TiDB has brought us a number of wins. Firstly, it is very stable at its core, which is very important to us. Another thing we like is the performance Lianghong Xu / Senior Engineering Manager, PinterestWatch the Video We decided that TiDB architecture layering a SQL layer over a ...
例如[rocksdb.defaultcf] max-write-buffer-number = 8 (默认值 5),同时请求注意在高峰期可能会占用更多的内存,因为可能存在于内存中的 memtable 会更多。 4.3.2 scheduler too busy 写入冲突严重,latch wait duration 比较高,查看监控:Grafana -> TiKV-details -> scheduler prewrite 或者scheduler ...
[ERROR] [server.rs:986] [“failed to init io snooper”] [err_code=KV:Unknown] [err=““IO snooper is not started due to not compiling with BCC””] 可以发一下上下文的日志看看,只看报错 可以参考一下这个 问答帖子 一tikv节点无法启动:报错:failed to init io snoopefox...
Step2/Step3: use joint consensus to switch role // Step2: use joint consensus [2024/07/09 16:25:24.248 +08:00] [INFO] [operator_controller.go:732] ["send schedule command"] [region-id=142725] [step="use joint consensus, promote learner peer 166543143 on store 166543141 to voter, demot...
Step2/Step3: use joint consensus to switch role // Step2: use joint consensus [2024/07/09 16:25:24.248 +08:00] [INFO] [operator_controller.go:732] ["send schedule command"] [region-id=142725] [step="use joint consensus, promote learner peer 166543143 on store 166543141 to voter, demot...
no matter a table has TiFlash replica(s) or not, you can import data to that table using TiDB Lightning. Note that this might slow the TiDB Lightning procedure, which depends on the NIC bandwidth on the lightning host, the CPU and disk load of the TiFlash node, and the number of TiFla...
com.mysql.jdbc.Driver (built-in, no need to download) Connection Information Collection Before connecting the database, you need to collect the following information: IP address and port number of the server where the database is located
Limit the number of query results To limit the number of query results, you can use theLIMITstatement. For example, to get theidandnameof the 10 youngest authors and display them in descending order of their birth year, execute the following SQL statement: ...