similar to: Massive UDP and TCP packet loss

Hi, I''m trying to get Xen running on 2 different systems and have massive packet losts independ from the system I use! This are the results from an UDP-Benchmark-Test from an Xen-Server to another one. As you make notice, the sending packets have a lost rate from > 80% up to 99%. What the hell is going on? I have no ideas. If I boot my 2 Xen-Servers with the normal kernel (without

I am having trouble with recovery. Today due to electrical work I powered down my networks Router / DHCP server. My Centos 7 host machines lost their DHCP lease (they are actually static leases). Once I power my Router / DHCP server back up none of my virtual machine were accessible. It appears that when the DHCP lease was lost on the virt server the bridge of the KVM guest were all losts. A

Hi, samba 3.0.24, debian etch I'm seeing a strange effect with samba and traffic over a bond0 interface in round robin mode. 2 server each with 2 GbE interfaces as bond0 device ind rr mode. netio benchmark: NETIO - Network Throughput Benchmark, Version 1.26 (C) 1997-2005 Kai Uwe Rommel TCP connection established. Packet size 1k bytes: 182840 KByte/s Tx, 197599 KByte/s Rx. Packet size

would like some input on this one please. Two CentOS 5.5 XEN servers, with 1GB NIC's, connected to a 1GB switch transfer files to each other at about 30MB/s between each other. Both servers have the following setup: CentOS 5.5 x64 XEN 1GB NIC's 7200rpm SATA HDD's The hardware configuration can't change, I need to use these servers as they are. They are both used in production

Hi all! I'm new to this list. I wanted to have an opinion of the situation i'm facing now (i'm no expert in LVM). Last week, i had to re-install a system which had a system hard drive crash (it was clunking before it definitely died!). It was running on SuSE 9.0 before. I just finished to install a fresh copy of CentOS 4.4 on a new hard disk. I want to know if it's possible

OK folks, I'm back at it again. Instead of taking my J4400 ( 24 x 1T disks) and making a big RAID60 out of it which Linux cannot make a filesystem on, I'm created 4 x RAID6 which each are 3.64T I then do : sfdisk /dev/sd{b,c,d,e} <<EOF ,,8e EOF to make a big LVM partition on each one. But then when I do : pvcreate /dev/sd{b,c,d,e}1 and then pvdisplay It shows each one as

Hi Ive been reading, testing and applying what Iam reading in the LARTC tutorial for a couple of days, I do not wish to use ready made scripts because that means I will always come back and ask the same question again. So Ive been wondering if I have 10 computers and I do want to limit the download for each of those 10 computers to 10 kbyte per second. I would create a leaf class and match the

Hi Ive been reading, testing and applying what Iam reading in the LARTC tutorial for a couple of days, I do not wish to use ready made scripts because that means I will always come back and ask the same question again. So Ive been wondering if I have 10 computers and I do want to limit the download for each of those 10 computers to 10 kbyte per second. I would create a leaf class and match the

Dear Samba-Users, could you please help me with the following two questions: 1. How can I increase the maximum SMB-blocksize from currently 4 KByte to the "regular" 64 KByte with my Red Hat Samba-Client (The server is already configured to 64 KByte and with a Windows-client this SMB-blocksize can be used.) 2. How can I deactivate the buffer on the SMB-client, so that the same file is

Promox 4.2 running on 2 nodes + 1 quorum = total 3 servers. All of them have tinc 1.0.24 running. On very rare occasions (every few days or 1~2 weeks), my website hosted on this proxmox node will throw cloudflare 522 connection timed out for few seconds or few minutes: https://support.cloudflare.com/hc/en-us/articles/200171906-Error-522-Connection-timed-out This problem has been driving me

Hi people, I would like to ask you guys about this little method I am using to scale my application better. Since you have way more expirience in the streaming sector than I do I would like to get feedback on my thoughts. As I said I am working on my own little streaming server, also GPL but java based. Now the juice: The application is multithreaded, implementing a producer-bus-consumer

Hmm, I know what you mean. I've actually taken these sentences out of Monty's specifications. The first one refers to the page size of max. ~64 kByte and the second one to the logical subdivision of packets into segments of 255 Byte size. I'm not sure how to rephrase that properly though. Maybe it's good as it stands: that it is recommended to have 4-8 kByte size, but expected more

Hmm, I know what you mean. I've actually taken these sentences out of Monty's specifications. The first one refers to the page size of max. ~64 kByte and the second one to the logical subdivision of packets into segments of 255 Byte size. I'm not sure how to rephrase that properly though. Maybe it's good as it stands: that it is recommended to have 4-8 kByte size, but expected more

I've been running into a reproducible problem when using default LVM volume group names to present block devices for virtual machines in KVM, and I'm wondering why it is happening. On dom0 I make a default VolGroup00 for the operating system. I make a second VolGroup01 for logical volumes that will be block devices for virtual systems. In VolGroup01, I make two lv's for one system:

Hello , I tried a simple test as follow : I used vmware software to set up 3 virtual linux computers . The middle computer act as a router (rip protocol ) using zebra software . I used iperf-1.7.0 to generate traffic from linux computer 1 to linux computer 3 . At router ( egress side ) I setup a simple qdisc as follow : tc qdisc add dev eth1 root handle 1: tbf rate 0.5 mbit burst 5kb latency

Hi folks, We found that samba performance downgrade a lot with glusterfs backend. volume info as followed, Volume Name: vol1 Type: Distribute Status: Started Number of Bricks: 1 Transport-type: tcp Bricks: Brick1: pana53:/data/ Options Reconfigured: auth.allow: 192.168.* features.quota: on nfs.disable: on Use dd (bs=1MB) or iozone (block=1MB) to test write performance, about 400MB/s. #dd

I hope someone is able to tell me wheter it is possible to rescue any data from my lvm disk. After adding a second disk, resizing, etc I made the super block sparse. Then problems surfaced. I tried both ef2sck v1.34 and v1.35 but they have the same result: Group descriptors look bad... trying backup blocks... Inode table for group 1519 is not in group. (block 7503623) WARNING: SEVERE DATA LOSS

if(state==-1){ /* initialize the double frame buffer */ yuvframe[0]=malloc(video_x*video_y*3/2); yuvframe[1]=malloc(video_x*video_y*3/2); /* clear initial frame as it may be larger than actual video data */ /* fill Y plane with 0x10 and UV planes with 0X80, for black data */ memset(yuvframe[0],0x10,video_x*video_y); memset(yuvframe[0]+video_x*video_y,0x80,video_x*video_y/2);

/dev/md3 is a raid5 array consisting of 4*500Gb disks pvs and pvscan both display good info: % pvscan | grep /dev/md3 PV /dev/md3 VG RaidDisk lvm2 [1.36 TB / 0 free] % pvs /dev/md3 PV VG Fmt Attr PSize PFree /dev/md3 RaidDisk lvm2 a- 1.36T 0 But pvdisplay... % pvdisplay /dev/md3 --- Physical volume --- PV Name /dev/md3

Hi all, I set up a samba server into Debian 3.2.0-4-amd64. This runs as guest OS into VirtualBox machine over OS X host OS. Connection seems pretty good: $ iperf -s ------------------------------------------------------------ Server listening on TCP port 5001 TCP window size: 85.3 KByte (default) ------------------------------------------------------------ [ 4] local 192.168.0.21 port 5001