Re: 501 user for wo apps?
Re: 501 user for wo apps?
- Subject: Re: 501 user for wo apps?
- From: Jesse Tayler <email@hidden>
- Date: Tue, 12 Apr 2011 13:26:58 -0400
I always forget I have to reply-all to include the list!
On Apr 12, 2011, at 1:24 PM, Jesse Tayler wrote:
> wait a second here Pascal -- you were able to launch 9 instances on a micro?
>
> I can launch - ...one... - the second instance is rather unceremoniously killed.
>
> Sure enough, there's no swap and not a lot of memory -- how am I using so much more RAM than you?
>
> Unless I'm mistaken -- this says I have a whopping 9K of free memory -- I feel like a wild man on a DEC PDP-8 - single user mode!
>
>
>
>
> ~]$ free
> total used free shared buffers cached
> Mem: 610196 600856 9340 0 696 9924
> -/+ buffers/cache: 590236 19960
> Swap: 0 0 0
>
>
>
>
> On Apr 12, 2011, at 1:10 PM, Pascal Robert wrote:
>
>>
>> Le 2011-04-11 à 16:03, Jesse Tayler a écrit :
>>
>>> Right, but now for some reason I'm running out of memory but I note monitor has increased memory settings? Or is this because I'm trying to use a "micro" instance of an amazon server?
>>
>> I got a "micro" instance to play with last week, and I was able to start 9 instances of AjaxExample from Wonder. The server was only running httpd, JavaMonitor, wotaskd and the instances. After 9 instances, wotaskd was still trying to launch the other 21 other instances (I wanted to see how the VM would react) over and over again.
>>
>>> the command line seems to run from the terminal, but I get this complaint in the WO app log:
>>>
>>>
>>>
>>> callUnixProcess [/home/appserver/bin/imagesize.sh 64 jpg]
>>> java.io.IOException: Cannot run program "/home/appserver/bin/imagesize.sh": java.io.IOException: error=12, Cannot allocate memory
>>
>> Look like that error is when the system is out of memory. Run the "free" command to check how much memory is available:
>>
>> [probert@wocommunity ~]$ free
>> total used free shared buffers cached
>> Mem: 1574912 1564208 10704 0 22528 646312
>>
>> I did notice that a "micro" instance don't have any swap space, which is kind of bad. If you can live with a bit less of disk space, see :
>>
>> http://siva2009.wordpress.com/2009/06/18/adding-linux-swap-file-how-to/
>>
>> Maybe the other instances size have swap space by default, but I don't know.
>>
>>>
>>>
>>>
>>> here's monitor settings, includes proper memory no? unrelated?
>>>
>>> -Xms128m -Xmx256m -DWOAllowsConcurrentRequestHandling=true
>>>
>>>
>>> On Apr 11, 2011, at 2:59 PM, Pascal Robert wrote:
>>>
>>>>
>>>> Le 2011-04-11 à 14:47, Jesse Tayler a écrit :
>>>>
>>>>>
>>>>> I'm launching a UNIX script to generate image thumbnails and troubleshooting with a new server setup.
>>>>>
>>>>> Unless I'm mistaken, the script is unable to launch due to permissions and WO seems to be running user 501 without a username.
>>>>>
>>>>> Now I can't recall if that's how it used to be, should I be running uid 501 with no account/username?
>>>>
>>>> Normally, the user who run wotaskd and Monitor (and your apps) is "appserver". I guess that user is not on your new server, and that since no other user have a ID of 501, it's running on the ID of the user coming from the .tar.gz of wotaskd and Monitor.
>>>>
>>>> So, you should create a "appserver" user and use 501 as the id for this user (or create the user and do a "chown -R appserver" on the directory where WO and your apps are).
>>>>
>>>>> I don't want a security disaster, but I do need to launch some scripts that require a decent shell env.
>>>>>
>>>>> Advice?
>>>>>
>>>>>
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>>>
>>
>>
>
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