12,067 reputation
31733
bio website zcentric.com
location San Francisco, CA
age 35
visits member for 5 years, 1 month
seen 2 hours ago

I'm a Linux sys admin by trade and a programmer by hobby.


Oct
30
comment ps aux hanging on high cpu/IO with java processes
I'm getting the datacenter to call me to see if they know what the raid controller is set to for write cache. As for card its a 3a0613065fa Adaptec \ 71605 \ SATA/SAS RAID I verified they are SATA drives also Western Digital WD RE WD4000FYYZ
Oct
30
revised ps aux hanging on high cpu/IO with java processes
added 1619 characters in body
Oct
30
revised ps aux hanging on high cpu/IO with java processes
added 2 characters in body
Oct
30
comment ps aux hanging on high cpu/IO with java processes
there's a raid card but its just used for handling 12 drives on the server. Its part of a Hadoop cluster so it does a lot of writing but also these lock ups come in place when yarn is pulling a lot of data for a map reduce job.
Oct
30
comment ps aux hanging on high cpu/IO with java processes
I made some edits with specs and what the load is
Oct
30
revised ps aux hanging on high cpu/IO with java processes
added 448 characters in body
Oct
30
awarded  Promoter
Oct
29
answered Can't block spammy IP
Oct
28
revised ps aux hanging on high cpu/IO with java processes
edited title
Oct
28
asked ps aux hanging on high cpu/IO with java processes
Oct
27
comment Linux (Centos) soft raid1 - motherboard died
plug in the server with a single drive and the system should find a degrated raid.. then shutdown and format the other in rescue mode then reboot with it and it should repair
Oct
27
answered Linux (Centos) soft raid1 - motherboard died
Oct
27
answered How to tune a web server and prep it for lots simultaneous visitors?
Oct
27
comment nginx suddenly trying to bind on the wrong port
see my edit for more info
Oct
27
revised nginx suddenly trying to bind on the wrong port
added 160 characters in body
Oct
27
answered nginx suddenly trying to bind on the wrong port
Oct
25
answered How switching off SSLv3 in Courier-IMAP server affects old Mail User Agents?
Oct
25
revised Why is OpenDKIM not signing and verifying my emails? (CentOS 6.5, Postfix & OpenDKIM)
added 340 characters in body
Oct
23
awarded  Favorite Question
Oct
23
awarded  Yearling