Blocker Description
I'd memory leak issue in regionserver process, VM and RSS memory continiously increasing 64MB.
I'm using hbase-0.94.6 , MALLOC_ARENA_MAX=4 was set in hbase-env.sh
I've huge write load and frequent minor compaction, We've used GZip hfile compression.
Max java regionserver heap size is 32GB.
top - 14:28:30 up 201 days, 21:06, 3 users, load average: 5.67, 3.72, 3.31 Tasks: 803 total, 1 running, 802 sleeping, 0 stopped, 0 zombie Cpu(s): 8.3%us, 2.1%sy, 0.0%ni, 85.9%id, 3.5%wa, 0.0%hi, 0.1%si, 0.0%st Mem: 65932340k total, 63961912k used, 1970428k free, 2394528k buffers Swap: 29659132k total, 63532k used, 29595600k free, 1095268k cached PID USER PR NI VIRT RES SHR S %CPU %MEM TIME+ COMMAND 57335 hbase 20 0 46.4g 44g 9296 S 98.2 70.9 13319:10 java
[hbase@xxxxxx-hslave ~]$ pmap -x 57335 | sort -k 3 -nr | more total kB 48695984 46765792 46756512 00007ff312460000 33171072 33169464 33169464 rwx-- [ anon ] 000000004010a000 1448552 1448552 1448552 rwx-- [ anon ] 00007ff2d1810000 612120 603124 603124 rwx-- [ anon ] 00007ff2fadff000 383364 383364 383364 rwx-- [ anon ] 00007ff0e8000000 131072 131072 131072 rwx-- [ anon ] 00007ff218000000 131048 131048 131048 rwx-- [ anon ] 00007ff128000000 131068 131048 131048 rwx-- [ anon ] 00007ff230000000 131044 131044 131044 rwx-- [ anon ] 00007ff000000000 131036 131036 131036 rwx-- [ anon ] 00007fefe0000000 131060 131036 131036 rwx-- [ anon ] 00007ff23c000000 65536 65536 65536 rwx-- [ anon ] 00007ff0a4000000 65536 65536 65536 rwx-- [ anon ] 00007ff054000000 65536 65536 65536 rwx-- [ anon ] 00007ff01c000000 65536 65536 65536 rwx-- [ anon ] 00007fefb4000000 65536 65536 65536 rwx-- [ anon ] 00007ff22c000000 65532 65532 65532 rwx-- [ anon ] 00007ff110000000 65532 65532 65532 rwx-- [ anon ] 00007ff10c000000 65532 65532 65532 rwx-- [ anon ] 00007ff0b8000000 65532 65532 65532 rwx-- [ anon ] 00007ff09c000000 65532 65532 65532 rwx-- [ anon ] 00007feff8000000 65532 65532 65532 rwx-- [ anon ] 00007ff250000000 65528 65528 65528 rwx-- [ anon ] --More--
$pmap -x 57335 | awk '{print $3}' | awk '{ if($i<65536 && $i>64000) print $i}' | wc -l
146
Regionserver process has many anon pages, size varying from 64000 to 65536 KB that shown above.