dhis2-devs team mailing list archive

[Bob Jolliffe <bobjolliffe@xxxxxxxxx>]

Thanh whatt does "top" tell you?  Most likely this is java going mental
trying to do datamart with too little memory or something similar.

If so, you might want to try running jstack to see what the threads are up
to, but if you are totally burning out then its possible the jvm won't
respond :-(


On 19 July 2013 16:26, Ngoc Thanh Nguyen <thanh.hispvietnam@xxxxxxxxx>wrote:

> Thanks Bob. That's definitely the case. However, do you think this can
> affect the performance? In other words, will it cause server memory or cpu
> problem?
>
> Thanh
>
>
> On Fri, Jul 19, 2013 at 7:24 PM, Bob Jolliffe <bobjolliffe@xxxxxxxxx>wrote:
>
>> I am sure you have a proxy (nginx or apache?) on the same machine.  So
>> the users access the proxy and the proxy accesses tomcat (which sees the
>> request as a local one).
>>
>> You need to add a directive to your proxy to preserve the name of the
>> requesting host.  On nginx this is:
>>
>> see http://ashberlin.co.uk/blog/nginx-proxy-host-header
>>
>> On apache2:
>>
>> http://httpd.apache.org/docs/2.2/mod/mod_proxy.html#proxypreservehost
>>
>> Bob
>>
>>
>>
>>
>>
>> On 19 July 2013 13:39, <jeromeshaguy@xxxxxxxxx> wrote:
>>
>>> **
>>> Hi Ngoc, no my server is not public
>>> Sent from my BlackBerry wireless device from MTN
>>> ------------------------------
>>> *From: * Ngoc Thanh Nguyen <thanh.hispvietnam@xxxxxxxxx>
>>> *Date: *Fri, 19 Jul 2013 18:36:20 +0700
>>> *To: *jerome shaguy<jeromeshaguy@xxxxxxxxx>
>>> *Cc: *dhis2-devs<dhis2-devs@xxxxxxxxxxxxxxxxxxx>
>>> *Subject: *Re: [Dhis2-devs] Strange request from 127.0.0.1
>>>
>>> Hi Jerome,
>>>
>>> Is your server public? In my case, I am guessing that some bad guys have
>>> hacked into the system by exploiting some security holes of the system or
>>> probably dhis2 itself.
>>>
>>> Thanh
>>>
>>>
>>> On Fri, Jul 19, 2013 at 5:05 PM, jerome shaguy <jeromeshaguy@xxxxxxxxx>wrote:
>>>
>>>> Hi,
>>>>
>>>> I have also been experiencing the same problem with my tomcat as
>>>> reported by Ngoc (but in my case it was only after I upgraded my war file
>>>> to 2.12) I am seeing a lot of requests in the log even though I am on
>>>> 127.0.0.1 and its constantly exceeding memory and completely halting simple
>>>> processes... I have tried to adjust memory to tomcat but this has not
>>>> helped. I join Ngoc in asking is there anyone out there with a solution?
>>>>
>>>>
>>>> On Fri, Jul 19, 2013 at 10:20 AM, Ngoc Thanh Nguyen <
>>>> thanh.hispvietnam@xxxxxxxxx> wrote:
>>>>
>>>>> In our server tomcat access log, there are lots of requests from
>>>>> 127.0.0.1 which is obviously local request. However, no one from our team
>>>>> actually working from the server so it must be automatic requests. This
>>>>> might be the reason for our server problems last several days as the system
>>>>> always results in full CPU or exceeding memory.
>>>>>
>>>>> Any one have ideas on how to kill these process?
>>>>>
>>>>> Thanks
>>>>>
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>>>>>
>>>>
>>>
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>>>
>>
>