從Oracle到MySQL的運(yùn)維實踐

1、從Oracle 到MySQL的運(yùn)維實踐技術(shù)創(chuàng)新，變革未來談Oracle ORA-600當(dāng)看到這個錯，你是否有思路？有哪種思路？這其實是Oracle 9.2 引的種塊檢測機(jī)制。 cache buffer在被重的過程中，buffer的數(shù)據(jù)般為temp。 Oracle在進(jìn)行致性檢查時發(fā)現(xiàn)buffer的headerdata_obje和所期望的ct_iddataobject_id因此拋出錯不致。誤。0 buffer_dirty9 unlink_from_lock18 ignore_redo1 notify_after_change10 down_grade_lock19 only_sequential_

2、access2 mod_started11 clone_being_written_20 prefetched_block3 block_has_been_logged12 reading_as_CR21 block_written_once4 temp_data13 gotten_in_current_mode22 logically_flushed5 being_written14 stale23 resilvered_already6 waiting_for_write15 deferred_ping25 redo_since_read7 multiple_waiters16 direc

3、t_access29 plugged_from_foreign_db8 recovery_reading17 hash_chain_dump30 flush_after_writingScan bitmap BlockKCB new BufferFormat data BlockDeep In Insert TableKcbnew調(diào)報錯這是個標(biāo)準(zhǔn)的Insert操作報錯堆棧同個表空間的block是否更容易落在個CHAIN上？沒有思路了論是否同個表空間都不太容易落到個Bucket通過scan LRU replcement list來獲取可重bufferReplacement List上都有哪些bu

4、ffer(可快速重的block如CR、極少使的 block)Solution ?Patch？PatchSet？Stop DSG？某物流公司-CPU異常飚某核系統(tǒng)突然出現(xiàn)CPU飚的情況診斷思路1、排查主機(jī)、絡(luò)等引薦硬件2、應(yīng)變更、應(yīng)程序端正常3、業(yè)務(wù)明顯增加(QPS、TPS明顯增加)4、壓測并復(fù)盤整個故障現(xiàn)象什么應(yīng)導(dǎo)致的呢SELECT o.ORDER_CODE, o.BILL_CODE, o.ORDER_STATUS,CREoA.RTEECTEAIBVLEER_oNmAsM_Eor,der (IDo.RbiEgCinEt(I2V0E) RN_OPTHNOUNLEL, AUTO_INCREMENT ,OoM.CSR_OERATDEE_RT_IMCOEDE varchar(32) NOT NULL , FRPAORMTONMERS_COORDERvoarchar(32) ,WHCEURSETOoM.PEAR_TCNOEDRE_C vOaDrcEha=r(86044) 4, 9953AONRDDoE.CRR_CEAOTDEE_TvIMarEcha=r(6240)1, 8-04-17 00:00:00A.N.D. o.CREATE_TIME show variables like %innodb_page%;+| Variable_na