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Bhavesh's questions

Martin Hope
Bhavesh
Asked: 2015-01-01 23:31:59 +0800 CST
  • -1

i am running Java application on Tomcat-6 on CentOs .

JAVA_OPTS Like this : 

 JAVA_OPTS="$JAVA_OPTS -Dorg.apache.catalina.security.SecurityListener.UMASK=`umask` -server -Xms256m -Xmx2536m -XX:+UseParallelGC  -XX:ParallelGCThreads=2  -XX:+UseParallelOldGC  -XX:ThreadStackSize=512 -XX:MaxPermSize=1024M"

but cache memory of server growing 

            total       used       free     shared    buffers     cached
Mem:         32101      16153      15948          0         20       3968
-/+ buffers/cache:      12164      19936
Swap:        16383        114      16269

where i am doing wrong ??

centos
Martin Hope
Bhavesh
Asked: 2014-08-05 18:09:05 +0800 CST
  • 1

i had trying to add new HDD in place of Falty HDD. but new HDD can not sync with old one .sync process shown up to 30 % after that its stopped .

cat /proc/mdstat
Personalities : [raid1] 

md2 : active raid1 sda3[0] sdb3[2](S)
      1458319504 blocks super 1.0 [2/1] [U_]

md1 : active raid1 sda2[3] sdb2[2]
      524276 blocks super 1.0 [2/2] [UU]

md0 : active raid1 sda1[0] sdb1[2]
      6291444 blocks super 1.0 [2/2] [UU]

md0 and md1 sync successfully , but md2 can not

this is detail 

mdadm --detail /dev/md2
/dev/md2:
        Version : 1.0
  Creation Time : Fri May 24 11:22:21 2013
     Raid Level : raid1
     Array Size : 1458319504 (1390.76 GiB 1493.32 GB)
  Used Dev Size : 1458319504 (1390.76 GiB 1493.32 GB)
   Raid Devices : 2
  Total Devices : 2
    Persistence : Superblock is persistent

    Update Time : Mon Aug  4 22:08:23 2014
          State : clean, degraded 
 Active Devices : 1
Working Devices : 2
 Failed Devices : 0
  Spare Devices : 1

           Name : rescue:2  (local to host rescue)
           UUID : 96b46a6c:f520938c:f94879df:27851e8a
         Events : 616

    Number   Major   Minor   RaidDevice State
       0       8        3        0      active sync   /dev/sda3
       1       0        0        1      removed

       2       8       19        -      spare   /dev/sdb3

is that any solution . i want to backup my data

linux