Installéiert Innotop fir MySQL Server Performance ze iwwerwaachen
Innotop ass en exzellente Kommandozeilprogramm, ähnlech wéi 'Top Kommando' fir lokal a Fern MySQL Serveren ze iwwerwaachen déi ënner InnoDB Motor lafen. Innotop kënnt mat villen Features a verschidden Aarte vu Modi/Optiounen, wat hëlleft verschidden Aspekter vun der MySQL Leeschtung ze iwwerwaachen an hëlleft och den Datebankadministrator fir erauszefannen wat mam MySQL Server falsch ass.
Zum Beispill, Innotop hëlleft bei der Iwwerwaachung vum mysql Replikatiounsstatus, Benotzerstatistiken, Ufrolëscht, InnoDB Puffer, InnoDB I/O Informatioun, oppen Dëscher, Spär Tabellen, etc.
Innotop kënnt mat super Features a Flexibilitéit a brauch keng extra Konfiguratioun an et kann ausgefouert ginn andeems Dir just 'innotop' Kommando vum Terminal leeft.
Installéiere vun Innotop (MySQL Monitoring)
Par défaut ass innotop Package net a Linux Verdeelungen abegraff wéi RHEL, CentOS, Fedora a Scientific Linux. Dir musst et installéieren andeems Dir Drëtt Partei Epel Repository aktivéiert an de Yum Kommando benotzt wéi hei ënnendrënner.
# yum install innotop
Loaded plugins: fastestmirror Loading mirror speeds from cached hostfile * base: centos.mirror.net.in * epel: epel.mirror.net.in * epel-source: epel.mirror.net.in * extras: centos.mirror.net.in * updates: centos.mirror.net.in Setting up Install Process Resolving Dependencies --> Running transaction check ---> Package innotop.noarch 0:1.9.0-3.el6 will be installed --> Finished Dependency Resolution Dependencies Resolved ========================================================================================================== Package Arch Version Repository Size ========================================================================================================== Installing: innotop noarch 1.9.0-3.el6 epel 149 k Transaction Summary ========================================================================================================== Install 1 Package(s) Total download size: 149 k Installed size: 489 k Is this ok [y/N]: y Downloading Packages: innotop-1.9.0-3.el6.noarch.rpm | 149 kB 00:00 Running rpm_check_debug Running Transaction Test Transaction Test Succeeded Running Transaction Installing : innotop-1.9.0-3.el6.noarch 1/1 Verifying : innotop-1.9.0-3.el6.noarch 1/1 Installed: innotop.noarch 0:1.9.0-3.el6 Complete!
Fir Innotop unzefänken, gitt einfach innotop a spezifizéiert Optiounen -u (Benotzernumm) respektiv -p (Passwuert), vun der Kommandozeil an dréckt Enter.
# innotop -u root -p 'tecm1nt'
Wann Dir mam MySQL Server verbonne sidd, sollt Dir eppes ähnlech wéi de folgenden Écran gesinn.
[RO] Dashboard (? for help) localhost, 61d, 254.70 QPS, 5/2/200 con/run/cac thds, 5.1.61-log Uptime MaxSQL ReplLag Cxns Lock QPS QPS Run Run Tbls Repl SQL 61d 4 0 254.70 _ _ 462 Off 1
Press ? fir de Resumé vun Kommandozeiloptiounen a Gebrauch ze kréien.
Switch to a different mode: A Dashboard I InnoDB I/O Info Q Query List B InnoDB Buffers K InnoDB Lock Waits R InnoDB Row Ops C Command Summary L Locks S Variables & Status D InnoDB Deadlocks M Replication Status T InnoDB Txns F InnoDB FK Err O Open Tables U User Statistics Actions: d Change refresh interval p Pause innotop k Kill a query's connection q Quit innotop n Switch to the next connection x Kill a query Other: TAB Switch to the next server group / Quickly filter what you see ! Show license and warranty = Toggle aggregation # Select/create server groups @ Select/create server connections $ Edit configuration settings \ Clear quick-filters Press any key to continue
Dës Sektioun enthält Screenshots vun der Innotop Notzung. Benotzt Upper-case Schlësselen fir tëscht Modi ze wiesselen.
Dëse Modus weist Benotzerstatistiken an Indexstatistiken no Liesen zortéiert.
CXN When Load QPS Slow QCacheHit KCacheHit BpsIn BpsOut localhost Total 0.00 1.07k 697 0.00% 98.17% 476.83k 242.83k
Dëse Modus weist d'Output vum VOLLZÄIT PROCESSLIST WEISEN, ähnlech wéi de Mytop Ufrolëscht Modus. Dës Feature weist keng InnoDB Informatioun an et ass am meeschte nëtzlech fir allgemeng Notzung.
When Load Cxns QPS Slow Se/In/Up/De% QCacheHit KCacheHit BpsIn BpsOut Now 0.05 1 0.20 0 0/200/450/100 0.00% 100.00% 882.54 803.24 Total 0.00 151 0.00 0 31/231470/813290/188205 0.00% 99.97% 1.40k 0.22 Cmd ID State User Host DB Time Query Connect 25 Has read all relay system u 05:26:04
Dëse Modus weist d'InnoDB's I/O Statistiken, pendend I/O, I/O Threads, Datei I/O a Logstatistiktabellen als Standard.
____________________ I/O Threads ____________________ Thread Purpose Thread Status 0 insert buffer thread waiting for i/o request 1 log thread waiting for i/o request 2 read thread waiting for i/o request 3 write thread waiting for i/o request ____________________________ Pending I/O _____________________________ Async Rds Async Wrt IBuf Async Rds Sync I/Os Log Flushes Log I/Os 0 0 0 0 0 0 ________________________ File I/O Misc _________________________ OS Reads OS Writes OS fsyncs Reads/Sec Writes/Sec Bytes/Sec 26 3 3 0.00 0.00 0 _____________________ Log Statistics _____________________ Sequence No. Flushed To Last Checkpoint IO Done IO/Sec 0 5543709 0 5543709 0 5543709 8 0.00
Dës Sektioun gesitt Dir Informatioun iwwer den InnoDB Puffer Pool, Säitstatistiken, Insert Puffer, an adaptiven Hash Index. D'Daten ginn aus WEISEN INNODB STATUS.
__________________________ Buffer Pool __________________________ Size Free Bufs Pages Dirty Pages Hit Rate Memory Add'l Pool 512 492 20 0 -- 16.51M 841.38k ____________________ Page Statistics _____________________ Reads Writes Created Reads/Sec Writes/Sec Creates/Sec 20 0 0 0.00 0.00 0.00 ______________________ Insert Buffers ______________________ Inserts Merged Recs Merges Size Free List Len Seg. Size 0 0 0 1 0 2 __________________ Adaptive Hash Index ___________________ Size Cells Used Node Heap Bufs Hash/Sec Non-Hash/Sec 33.87k 0 0.00 0.00
Hei gesitt Dir d'Output vun InnoDB Zeiloperatioune, Zeiloperatioun misc, Semaphoren, a Wait Array Dëscher als Standard.
________________ InnoDB Row Operations _________________ Ins Upd Read Del Ins/Sec Upd/Sec Read/Sec Del/Sec 0 0 0 0 0.00 0.00 0.00 0.00 ________________________ Row Operation Misc _________________________ Queries Queued Queries Inside Rd Views Main Thread State 0 0 1 waiting for server activity _____________________________ InnoDB Semaphores _____________________________ Waits Spins Rounds RW Waits RW Spins Sh Waits Sh Spins Signals ResCnt 2 0 41 1 1 2 4 5 5 ____________________________ InnoDB Wait Array _____________________________ Thread Time File Line Type Readers Lck Var Waiters Waiting? Ending?
De Kommando Resumé Modus weist all cmd_summary Tabelle, déi ähnlech wéi déi hei ënnen ausgesäit.
_____________________ Command Summary _____________________ Name Value Pct Last Incr Pct Com_update 11980303 65.95% 2 33.33% Com_insert 3409849 18.77% 1 16.67% Com_delete 2772489 15.26% 0 0.00% Com_select 507 0.00% 0 0.00% Com_admin_commands 411 0.00% 1 16.67% Com_show_table_status 392 0.00% 0 0.00% Com_show_status 339 0.00% 2 33.33% Com_show_engine_status 164 0.00% 0 0.00% Com_set_option 162 0.00% 0 0.00% Com_show_tables 92 0.00% 0 0.00% Com_show_variables 84 0.00% 0 0.00% Com_show_slave_status 72 0.00% 0 0.00% Com_show_master_status 47 0.00% 0 0.00% Com_show_processlist 43 0.00% 0 0.00% Com_change_db 27 0.00% 0 0.00% Com_show_databases 26 0.00% 0 0.00% Com_show_charsets 24 0.00% 0 0.00% Com_show_collations 24 0.00% 0 0.00% Com_alter_table 12 0.00% 0 0.00% Com_show_fields 12 0.00% 0 0.00% Com_show_grants 10 0.00% 0 0.00%
Dës Sektioun berechent Statistiken, wéi Ufroen pro Sekonn, a weist se an der Zuel vu verschiddene Modi eraus.
QPS Commit_PS Rlbck_Cmt Write_Commit R_W_Ratio Opens_PS Tbl_Cch_Usd Threads_PS Thrd_Cch_Usd CXN_Used_Ever CXN_Used_Now 0 0 0 18163174 0 0 0 0 0 1.99 1.32 0 0 0 18163180 0 0 0 0 0 1.99 1.32 0 0 0 18163188 0 0 0 0 0 1.99 1.32 0 0 0 18163192 0 0 0 0 0 1.99 1.32 0 0 0 18163217 0 0 0 0 0 1.99 1.32 0 0 0 18163265 0 0 0 0 0 1.99 1.32 0 0 0 18163300 0 0 0 0 0 1.99 1.32 0 0 0 18163309 0 0 0 0 0 1.99 1.32 0 0 0 18163321 0 0 0 0 0 1.99 1.32 0 0 0 18163331 0 0 0 0 0 1.99 1.32
An dësem Modus gesitt Dir d'Ausgab vum Sklave SQL Status, Sklave I/O Status a Master Status. Déi éischt zwee Sektioun weist de Sklave Status a Sklave I/O thread Status an déi lescht Sektioun weist de Master Status.
_______________________ Slave SQL Status _______________________ Master On? TimeLag Catchup Temp Relay Pos Last Error 172.16.25.125 Yes 00:00 0.00 0 41295853 ____________________________________ Slave I/O Status _____________________________________ Master On? File Relay Size Pos State 172.16.25.125 Yes mysql-bin.000025 39.38M 41295708 Waiting for master to send event ____________ Master Status _____________ File Position Binlog Cache mysql-bin.000010 10887846 0.00%
Dir kënnt innotop an net-interaktiv lafen.
# innotop --count 5 -d 1 -n
uptime max_query_time time_behind_master connections locked_count qps spark_qps run spark_run open slave_running longest_sql 61d 2 0 0.000363908088893752 64 Yes 61d 2 0 4.96871146980749 _ _ 64 Yes 61d 2 0 3.9633543857494 ^_ __ 64 Yes 61d 2 0 3.96701862656428 ^__ ___ 64 Yes 61d 2 0 3.96574802684297 ^___ ____ 64 Yes
Fir eng Remote-Datebank op engem Fernsystem ze iwwerwaachen, benotzt de folgende Kommando mat engem bestëmmte Benotzernumm, Passwuert an Hostnumm.
# innotop -u username -p password -h hostname
Fir méi Informatioun iwwer 'innotop' Benotzung an Optiounen, kuckt d'Man Säiten andeems Dir Man innotop op engem Terminal dréckt.
Referenz Linken
Innotop Homepage
- Mtop (MySQL Datebank Iwwerwaachung) an RHEL/CentOS/Fedora