/storage/log/vmware/perfcharts に大きな Java ダンプ ファイルが作成される

Products

• VMware vCenter Server

Issue/Introduction

Symptoms:
You see that the /storage/log directory is full and in critical state the appliance manager page in VCSA 6.5.
 

• You see that large Java dump files are created at /storage/log/vmware/perfcharts.
   
• You see that the alerts are triggered in the vCenter Server VAMI page.
   
• You notice that the /storage/log is almost full.
   
  root@VCENTER [ ~ ]# df -h
  Filesystem Size Used Avail Use% Mounted on
   
   
  /dev/mapper/autodeploy_vg-autodeploy 9.8G 33M 9.2G 1% /storage/autodeploy
  /dev/mapper/seat_vg-seat 25G 3.3G 20G 15% /storage/seat
  /dev/mapper/db_vg-db 9.8G 1.8G 7.5G 20% /storage/db
  /dev/mapper/updatemgr_vg-updatemgr 99G 757M 93G 1% /storage/updatemgr
  /dev/mapper/log_vg-log 74G 67G 4.2G 95% /storage/log
  /dev/mapper/core_vg-core 50G 52M 47G 1% /storage/core
  /dev/sda1 120M 28M 87M 24% /boot
   
• When you browse to /storage/log/vmware/perfcharts directory, you see lots of Java dump files(.hprof).
   

  root@VCENTER [ /storage/log/vmware/perfcharts ]# ls -l

  total 67433848

  -rw-r--r-- 1 perfcharts users 102100 May 19 19:03 java_error23079.log

  -rw-r--r-- 1 perfcharts users 106892 Mar 29 23:25 java_error45346.log

  -rw------- 1 perfcharts users 772752973 May 18 04:57 java_pid1290.hprof

  -rw------- 1 perfcharts users 775950352 Apr 23 22:59 java_pid13403.hprof

  -rw------- 1 perfcharts users 776215829 Apr 14 08:18 java_pid14007.hprof

  -rw------- 1 perfcharts users 776821858 Apr 10 16:00 java_pid14105.hprof

  -rw------- 1 perfcharts users 776148983 Apr 24 17:43 java_pid14437.hprof

  -rw------- 1 perfcharts users 775075757 Apr 30 03:48 java_pid14502.hprof

  -rw------- 1 perfcharts users 777414024 Mar 7 21:55 java_pid1463.hprof

  -rw------- 1 perfcharts users 777816472 Mar 3 14:35 java_pid15043.hprof

  -rw------- 1 perfcharts users 773803956 May 14 20:16 java_pid16276.hprof

  -rw------- 1 perfcharts users 776556635 Apr 19 04:38 java_pid17986.hprof

  -rw------- 1 perfcharts users 774637444 May 6 03:29 java_pid18867.hprof

  -rw------- 1 perfcharts users 776309973 Apr 17 14:34 java_pid19069.hprof
   
• Files are getting re-generated even after removing the java files by running the rm -rf java_pid*.hprof command.

Environment

VMware vCenter Server Appliance 6.5.x

Resolution

この問題を解決するには、VMware Download から入手できる vCenter Server 6.5 U1d にアップグレードします。

Workaround:

この問題を回避するには、次の手順を実行します。

 

1. SSH またはコンソールを使用して vCenter Server Appliance にログインします。
    
2. Take a backup of the /etc/vmware/service-layout.mfx file by running this command:
   
   cp service-layout.mfx service-layout.mfx.bak
    
3. Stop the vmware-perfcharts service by running this command:
   
   service-control --stop vmware-perfcharts
    
4. Open the service-layout.mfx file using a text editor by running this command:
   
   vi service-layout.mfx
    
5. Change CompressClassSize size from 94 to 64 for the row vmware-perfcharts.
    
6. Save and close the service-layout.mfx file.
    
7. Start the vmware-perfcharts service by running this command:
   
   service-control --start vmware-perfcharts
    
8. Now increase the dynamic sizing of vmware-perfcharts by running this command:
   
   cloudvm-ram-size -C 1024 vmware-perfcharts