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seen Oct 22 at 8:13

Dec
4
awarded  Yearling
Jun
21
comment Mysql dump wont import - Created on same version of mysql etc
show us the whole line of the dump, which causes the error.
Jun
20
comment Postfix log file grows too fast
I'm glad i could help ;-)
Jun
19
answered Postfix log file grows too fast
Jun
19
answered Log analyzer for nginx
Apr
28
revised Backup/Clone a btrfs partition
added 109 characters in body
Apr
25
comment Slower file create on faster server. Why?
You could use something like fio, but I've come across one more difference between your systems. On first systems Barracuda 7200.11 are the old, 512byte sector drives, where 7200.14 is a new Advanced format (4k sector). Metadata operations are a small writes (way smaller than 4K) and that requires the drive to read the data, modify it and write back. Not sure how xfs handles that, but i'd try passing -d su=4k,sw=1 -l su=4k to mkfs.xfs and see if that helps. btw. is your lvm on a partition? If so, please add parted -l output.
Apr
25
answered Memcached in a cloud environment: dedicated server or localhosts?
Apr
23
comment How to build a L2 Ethernet with 1000 comupters?
You usually use higher throughput core switches (10gbps if nodes use 1gbps) and usually you don't do this on L2, but rather split it into L3, that is far more manageable.
Apr
23
comment Why not block ICMP?
I believe redirects are ignored by default on linux. But yeah, better to filter that one.
Apr
23
comment Slower file create on faster server. Why?
Hmm, i'm getting out of ammunition here :( Sorry. I'd try testing it with something bit more low-level(fio), to see, if it is hardware/system problem, or if it is the filesystem. btw. both controllers in the same mode(ahci/intel)? and raid1 using md?
Apr
21
answered Does single Apache worker serves only 1 request or more than that?
Apr
21
comment Slower file create on faster server. Why?
This really seems that latency gets added somewhere on the way. Are the kernels/xens the same version?
Apr
20
comment Slower file create on faster server. Why?
Can you please share mount and xfs_info on both filesystems?
Apr
20
comment Raid 0, Raid 1, Raid 5, Raid6, Raid 10 Read/Write performance?
@DukeLion thanks for the correction. Mistaken the term. Edited my answer.
Apr
20
revised Raid 0, Raid 1, Raid 5, Raid6, Raid 10 Read/Write performance?
mistaken term.
Apr
20
revised Raid 0, Raid 1, Raid 5, Raid6, Raid 10 Read/Write performance?
clean up, link source.
Apr
20
comment Memcached in a cloud environment: dedicated server or localhosts?
How much traffic (both throughput and and reqs/s) to the memcached do you do? How important is latency to you? Are you memory-constrained on the webservers (will the data that needs to be memcached easily fit into webserver's memory)? Are you planning on any failover scenario? If so, can your app handle the data not being in cache (it should!)?
Apr
20
answered Raid 0, Raid 1, Raid 5, Raid6, Raid 10 Read/Write performance?
Apr
19
revised Reverse dns returns a different host each time
added missing parenthesis