SUSE VMware image of TD13 Express dies intermittently

Teradata Express Software
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SUSE VMware image of TD13 Express dies intermittently

After a month and half of flawless execution, my TD13 Express VMware installation (as downloaded from Teradata) has begun to flake out on me. Every couple of days it stops responding to network connections and has to be restarted from within VMWare.

VMWare reports the image as using all available CPU power during these events.

Any suggestions?
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4 REPLIES
Teradata Employee

Re: SUSE VMware image of TD13 Express dies intermittently

Not having more information available, it is hard to tell what is going on. However, there's a few small tricks to clean up the vmware images

1. shut down vm instance, go to the folder where the vmx files reside, and delete all vmware temporary and log files

2. defrag on the root drive virtual disks (sda, sdb...etc) from within vmware player/workstation

3. look at your settings and make sure your host is not starved for RAM because of overprovisioning

4. launch vm instance, before database starts, clean out all files in tdtemp directory. I think you can get to that by executing pdepath -S from command line.

Teradata Employee

Re: SUSE VMware image of TD13 Express dies intermittently

Some misbehaving component using all available CPU would likely cause other processes to be unresponsive. If possible, when you see the VM using all available CPU, run the "top" command in a terminal window on the guest to identify the processes that are using the most CPU. That would give us a better clue as to what is going on.

Re: SUSE VMware image of TD13 Express dies intermittently

I haven't tried to improve the situation yet, but I did manage to catch a lock up with a 'top' snapshot (I had an SSH window running top when the server died). The top 6 processes all look pretty fishy...

top - 16:06:45 up 2 days, 6:26, 1 user, load average: 14.31, 12.66, 12.23
Tasks: 113 total, 6 running, 107 sleeping, 0 stopped, 0 zombie
Cpu(s): 0.2%us, 71.8%sy, 0.0%ni, 4.4%id, 23.5%wa, 0.0%hi, 0.1%si, 0.0%st
Mem: 7076908k total, 7038964k used, 37944k free, 280k buffers
Swap: 8626864k total, 102960k used, 8523904k free, 5724312k cached

PID USER PR NI VIRT RES SHR S %CPU %MEM TIME+ COMMAND
236 root 16 0 0 0 0 R 68 0.0 0:09.44 kswapd0
5319 root 16 0 0 0 0 R 57 0.0 0:48.90 vmmemctl
5767 ntp 18 0 13864 4740 3612 D 48 0.1 0:02.47 ntpd
5750 root 17 0 37764 1256 916 R 43 0.0 0:03.47 X
5799 gdm 15 0 93116 2896 2212 S 37 0.0 0:03.11 gdmgreeter
4262 root 17 0 2644 376 292 R 20 0.0 0:00.64 irqbalance
3308 root 17 0 7972 1336 1060 S 5 0.0 0:00.48 sh
3323 root 18 0 7972 648 264 S 3 0.0 0:00.09 lsb_release
3324 root 18 0 7972 776 392 D 1 0.0 0:00.02 lsb_release
234 root 15 0 0 0 0 S 0 0.0 0:02.45 pdflush
235 root 15 0 0 0 0 D 0 0.0 0:00.88 pdflush
1130 root 16 0 5460 1064 828 R 0 0.0 2:18.69 top
3309 root 17 0 7972 1516 1132 S 0 0.0 0:00.01 lsb_release
1 root 16 0 784 52 28 S 0 0.0 0:00.94 init
2 root RT 0 0 0 0 S 0 0.0 0:00.38 migration/0
3 root 34 19 0 0 0 S 0 0.0 0:00.00 ksoftirqd/0
4 root RT 0 0 0 0 S 0 0.0 0:00.51 migration/1

Re: SUSE VMware image of TD13 Express dies intermittently

The only thing this tells me is that none of the top CPU users are Teradata processes. Perhaps you should raise this issue in a Linux forum.