Percona-Tookit工具包之pt-summary

 

Preface

 

    As a dba,We are obliged to master several basic tools(such as vmstat,top,netstat,iostat,df,etc.) to monitor system status or analyze the the information of it espcially in trouble shooting and performance tunning.

    

Introduce

 

    pt-summary is a tool which provide us the function of collecting the common system information for us instead of running the other various tools.It can print a report in summary on screen or write into a sepcific file either.It's better to run it as root to get as many as privieges.

 

Procedure

 

Usage

 pt-summary //We can executed it without any parameter.

Common parameter

 --read-samples //Generate the report from sepcific files.
 --save-samples //Create a directory and put the collected information into different files in it.
 --sleep //Specify the how long to sleep while collecting samples of vmstat.
 --summarize-mounts //Report information of mounted filesystems and disk usage.
 --summarize-network //Report information of network.
 --summarize-processes //Report information of top processes and vmstat.

Example

 [root@zlm2 :: ~]
 #pt-summary --save-samples=`date +%Y%m%d`
 # Percona Toolkit System Summary Report ######################
         Date | -- :: UTC (local TZ: CEST +)
     Hostname | zlm2
       Uptime |  :,   users,  load average: 0.03, 0.03, 0.05
       System | innotek GmbH; VirtualBox; v1. (Other)
  Service Tag |
     Platform | Linux
      Release | CentOS Linux release 7.1. (Core)
       Kernel | 3.10.-.el7.x86_64
 Architecture | CPU = -bit, OS = -bit
    Threading | NPTL 2.17
      SELinux | Disabled
  Virtualized | VirtualBox
 # Processor ##################################################
   Processors | physical = , cores = , virtual = , hyperthreading = no
       Speeds | 1x2396.
       Models | 1xIntel(R) Core(TM) i5-6200U CPU @ .30GHz
       Caches | 1x3072 KB
 # Memory #####################################################
        Total | 993.6M
         Free | 588.3M
         Used | physical = 250.9M, swap allocated = 1016.0M, swap used = 0.0, virtual = 250.9M
       Shared | 6.5M
      Buffers | 154.5M
       Caches | 606.5M
        Dirty |  kB
      UsedRSS | 296.2M
   Swappiness |
  DirtyPolicy | ,
  DirtyStatus | ,
   Locator   Size     Speed             Form Factor   Type          Type Detail
   ========= ======== ================= ============= ============= ===========
 # Mounted Filesystems ########################################
   Filesystem               Size Used Type     Opts                                             Mountpoint
   /dev/mapper/centos-root  .4G  % xfs      rw,relatime,attr2,inode64,noquota                /
   /dev/sda1                497M  % xfs      rw,relatime,attr2,inode64,noquota                /boot
   devtmpfs                 488M   % devtmpfs rw,nosuid,size=499536k,nr_inodes=,mode= /dev
   none                      87G  % vboxsf   rw,nodev,relatime                                /vagrant
   tmpfs                    497M   % tmpfs    rw,nosuid,nodev                                  /dev/shm
   tmpfs                    497M   % tmpfs    rw,nosuid,nodev,mode=                         /dev/shm
   tmpfs                    497M   % tmpfs    rw,nosuid,nodev,noexec,mode=                  /dev/shm
   tmpfs                    497M   % tmpfs    rw,nosuid,nodev                                  /sys/fs/cgroup
   tmpfs                    497M   % tmpfs    rw,nosuid,nodev,mode=                         /sys/fs/cgroup
   tmpfs                    497M   % tmpfs    rw,nosuid,nodev,noexec,mode=                  /sys/fs/cgroup
   tmpfs                    497M   % tmpfs    rw,nosuid,nodev                                  /run
   tmpfs                    497M   % tmpfs    rw,nosuid,nodev,mode=                         /run
   tmpfs                    497M   % tmpfs    rw,nosuid,nodev,noexec,mode=                  /run
 # Disk Schedulers And Queue Size #############################
         dm- |
         dm- |
          sda | [cfq]
          sr0 | [cfq]
          sr1 | [cfq]
 # Disk Partioning ############################################
 Device       Type      Start        End               Size
 ============ ==== ========== ========== ==================
 /dev/dm-    Disk
 /dev/dm-    Disk
 /dev/sda     Disk
 /dev/sda1    Part
 /dev/sda2    Part
 # Kernel Inode State #########################################
 dentry-state |
      file-nr |
     inode-nr |
 # LVM Volumes ################################################
   LV   VG     Attr       LSize    Pool Origin Data%  Meta%  Move Log Cpy%Sync Convert
   root centos -wi-ao----   <.38g
   swap centos -wi-ao---- 1016.00m
 # LVM Volume Groups ##########################################
   VG     VSize VFree
   centos .41g 40.00m
 # RAID Controller ############################################
   Controller | No RAID controller detected
 # Network Config #############################################
   Controller | Intel Corporation 82540EM Gigabit Ethernet Controller (rev )
   Controller | Intel Corporation 82540EM Gigabit Ethernet Controller (rev )
  FIN Timeout |
   Port Range |
 # Interface Statistics #######################################
   interface  rx_bytes rx_packets  rx_errors   tx_bytes tx_packets  tx_errors
   ========= ========= ========== ========== ========== ========== ==========
   lo
   enp0s3
   enp0s8
 # Network Devices ############################################
   Device    Speed     Duplex
   ========= ========= =========
   enp0s3     1000Mb/s   Full
   enp0s8     1000Mb/s   Full
 # Network Connections ########################################
   Connections from remote IP addresses
     192.168.1.1
     192.168.1.101
   Connections to local IP addresses
     192.168.1.101
   Connections to top  local ports

   States of connections
     CLOSE_WAIT
     ESTABLISHED
     LISTEN
 # Top Processes ##############################################
   PID USER      PR  NI    VIRT    RES    SHR S %CPU %MEM     TIME+ COMMAND
      root                   S  0.0  0.4   :00.68 systemd
      root                             S  0.0  0.0   :00.00 kthreadd
      root                             S  0.0  0.0   :00.27 ksoftirqd/
      root        -                    S  0.0  0.0   :00.00 kworker/:0H
      root                             S  0.0  0.0   :00.00 kworker/u2:
      root      rt                       S  0.0  0.0   :00.00 migration/
      root                             S  0.0  0.0   :00.00 rcu_bh
      root                             S  0.0  0.0   :00.00 rcuob/
     root                             S  0.0  0.0   :01.07 rcu_sched
 # Notable Processes ##########################################
   PID    OOM    COMMAND
       -    sshd
 # Simplified and fuzzy rounded vmstat (wait please) ##########
   procs  ---swap-- -----io---- ---system---- --------cpu--------
    r  b    si   so    bi    bo     ir     cs  us  sy  il  wa  st

 # Memory mamagement ##########################################
 Transparent huge pages are enabled.
 # The End ####################################################

 [root@zlm2 :: ~]
 #ls -l
 total
 drwxr-xr-x    root root  Jul  :  //This is the newly created directory which contains individual information of system status.
 -rw-------.   root root  Jul    anaconda-ks.cfg
 -rwxr-xr-x    root root    Jun  : mysqld.sh
 drwxr-xr-x   root root  Jul   : sysbench-1.0

 [root@zlm2 :: ~]
 #cd /

 [root@zlm2 :: ~/]
 #ls -l
 total
 -rw-r--r--  root root  Jul  : dmesg_file
 -rw-r--r--  root root   Jul  : dmidecode
 -rw-r--r--  root root   Jul  : ip
 -rw-r--r--  root root    Jul  : lspci_file
 -rw-r--r--  root root    Jul  : lvs
 -rw-r--r--  root root   Jul  : memory
 -rw-r--r--  root root   Jul  : mounted_fs
 -rw-r--r--  root root    Jul  : netstat
 -rw-r--r--  root root   Jul  : network_devices
 -rw-r--r--  root root     Jul  : notable_procs
 -rw-r--r--  root root    Jul  : partitioning
 -rw-r--r--  root root    Jul  : proc_cpuinfo_copy
 -rw-r--r--  root root    Jul  : processes
 -rw-r--r--  root root    Jul  : summary
 -rw-r--r--  root root  Jul  : sysctl
 -rw-r--r--  root root     Jul  : uptime
 -rw-r--r--  root root     Jul  : vgs
 -rw-r--r--  root root    Jul  : vmstat

 [root@zlm2 :: ~/]
 #cat memory //We can get detail information of memory usage in the collected file "memory".
               total        used        free      shared  buff/cache   available
 Mem:
 Swap:
 MemTotal:         kB
 MemFree:           kB
 MemAvailable:      kB
 Buffers:              kB
 Cached:            kB
 SwapCached:             kB
 Active:            kB
 Inactive:          kB
 Active(anon):      kB
 Inactive(anon):      kB
 Active(file):       kB
 Inactive(file):     kB
 Unevictable:            kB
 Mlocked:                kB
 SwapTotal:        kB
 SwapFree:         kB
 Dirty:                 kB
 Writeback:              kB
 AnonPages:         kB
 Mapped:             kB
 Shmem:               kB
 Slab:               kB
 SReclaimable:       kB
 SUnreclaim:         kB
 KernelStack:         kB
 PageTables:          kB
 NFS_Unstable:           kB
 Bounce:                 kB
 WritebackTmp:           kB
 CommitLimit:      kB
 Committed_AS:      kB
 VmallocTotal:    kB
 VmallocUsed:        kB
 VmallocChunk:    kB
 HardwareCorrupted:      kB
 AnonHugePages:     kB
 HugePages_Total:
 HugePages_Free:
 HugePages_Rsvd:
 HugePages_Surp:
 Hugepagesize:        kB
 DirectMap4k:        kB
 DirectMap2M:       kB

Summary

• pt-summary can work well in many Unix systems(based on the inside-command of collecting data) without any complex parameters.
• pt-summary is only a tool of generating reports of system information instead of tuning and diagnosing performance.
• We can deploy pt-summary in crontab and make it collecting data regularly as we need for future diagnosis.