Instalirajte Innotop za praćenje performansi MySQL servera
Innotop je odličan program komandne linije, sličan 'top command' za nadgledanje lokalnih i udaljenih MySQL servera koji rade pod InnoDB motorom. Innotop dolazi sa mnogim funkcijama i različitim tipovima modova/opcija, što pomaže u praćenju različitih aspekata MySQL performansi i pomaže administratoru baze podataka da otkrije šta nije u redu sa MySQL serverom.
Na primjer, Innotop pomaže u praćenju statusa replikacije mysql, korisničke statistike, liste upita, InnoDB bafera , InnoDB I/O informacije, otvorene tabele, zaključane tabele, itd, redovno osvježava svoje podatke, tako da možete vidjeti ažurirani rezultati.
Innotop dolazi sa odličnim karakteristikama i fleksibilnošću i ne treba mu nikakvu dodatnu konfiguraciju i može se izvršiti samo pokretanjem naredbe „innotop“ s terminala.
Instaliranje Innotop-a (MySQL Monitoring)
Po defaultu innotop paket nije uključen u Linux distribucije kao što su RHEL, CentOS , Fedora i Scientific Linux. Morate ga instalirati tako što ćete omogućiti epel repozitorij treće strane i koristeći yum komandu kao što je prikazano ispod.
yum install innotop
Sample Output
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!
Da pokrenete innotop, jednostavno upišite “innotop” i navedite opcije -u (korisničko ime) i - p (lozinka) iz komandne linije i pritisnite Enter.
innotop -u root -p 'tecm1nt'
Kada se povežete na MySQL server, trebali biste vidjeti nešto slično na sljedećem ekranu.
[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
Innotop Help
Pritisnite “?” da dobijete sažetak opcija komandne linije i upotrebe.
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
Ovaj odjeljak sadrži snimke ekrana korištenja innotopa. Koristite tipke za velika slova za prebacivanje između načina rada.
Statistika korisnika
Ovaj način rada prikazuje korisničku statistiku i indeks statistiku sortiranu prema čitanjima.
CXN When Load QPS Slow QCacheHit KCacheHit BpsIn BpsOut
localhost Total 0.00 1.07k 697 0.00% 98.17% 476.83k 242.83k
Lista upita
Ovaj način rada prikazuje izlaz iz POKAŽI PUNU LISTU PROCESA, slično načinu rada liste upita na mytopu. Ova funkcija ne prikazuje InnoDB informacije i najkorisnija je za opću upotrebu.
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
InnoDB I/O Info
Ovaj način rada prikazuje InnoDB-ovu I/O statistiku, U/O na čekanju, I/O niti, U/O datoteke > i Statistika evidencije prema zadanim postavkama.
____________________ 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
InnoDB baferi
U ovom odeljku ćete vidjeti informacije o InnoDB spremištu međuspremnika, statistici stranice, umetni bafer i adaptivnom hash indeksu >. Podaci se preuzimaju iz POKAŽI 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
InnoDB Row Ops
Ovdje ćete vidjeti izlaz tabele InnoDB operacija redova, razne operacije redova, semafora i niza čekanja po defaultu.
________________ 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?
Sažetak komande
Režim sažetka naredbi prikazuje svu tabelu cmd_summary, koja izgleda slično dolje.
_____________________ 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%
Varijable i status
Ovaj odjeljak izračunava statistiku, poput upita u sekundi, i prikazuje ih u više različitih načina.
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
Status replikacije
U ovom načinu rada vidjet ćete izlaz Slave SQL status, Slave I/O Status i Master Status. Prva dva odjeljka prikazuje slave status i slave I/O thread thread a posljednji odjeljak prikazuje 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%
Neinteraktivno
Možete pokrenuti “innotop” neinteraktivno.
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
Monitor Remote Database
Da nadgledate udaljenu bazu podataka na udaljenom sistemu, koristite sljedeću naredbu koristeći određeno korisničko ime, lozinku i ime hosta.
innotop -u username -p password -h hostname
Za više informacija o korišćenju i opcijama „innotop“, pogledajte man stranice pritiskom na „man innotop” na terminalu.
Referentne veze
Innotop početna stranica
Pročitajte također :
- Mtop (nadzor MySQL baze podataka) u RHEL/CentOS/Fedora