Re: How often do you bounce your apps?
Re: How often do you bounce your apps?
- Subject: Re: How often do you bounce your apps?
- From: Stefan Gärtner via Webobjects-dev <email@hidden>
- Date: Thu, 6 Aug 2020 07:33:45 +0200
We never bounce, but every few weeks we have an update, which certainly starts
a new instance.
We heavily use EOF. I never had the feeling that there is any memory leak, at
least in our scenario.
> Am 06.08.2020 um 00:56 schrieb D Tim Cummings via Webobjects-dev
> <email@hidden>:
>
> Daily for us. Once every few months we get an instance hanging and it is
> clear at the start of the day that it has hung because it hasn’t restarted
> overnight.
>
> Tim
>
>> On 6 Aug 2020, at 05:37, Lon Varscsak via Webobjects-dev
>> <email@hidden <mailto:email@hidden>>
>> wrote:
>>
>> We don't bounce our apps unless we do a release or if there's an instance
>> that hangs.
>>
>> -Lon
>>
>> On Wed, Aug 5, 2020 at 9:09 AM Theodore Petrosky via Webobjects-dev
>> <email@hidden <mailto:email@hidden>>
>> wrote:
>> My apps upload pdfs. As Java keeps the temp file that was uploaded until the
>> app that did the upload quits, I bounce my apps every night to clean things
>> up.
>>
>> Ted
>>
>>> On Aug 5, 2020, at 10:37 AM, Ken Anderson via Webobjects-dev
>>> <email@hidden <mailto:email@hidden>>
>>> wrote:
>>>
>>> I never bounce them - even with EOF ;)
>>>
>>>> On Aug 5, 2020, at 07:07, Jesse Tayler via Webobjects-dev
>>>> <email@hidden <mailto:email@hidden>>
>>>> wrote:
>>>>
>>>> What do you use to keep an eye on memory? JAVA has such an old-school
>>>> approach with the VM I use AWS and really don’t have any good automated
>>>> visualizing report on how instances or JAVA is running under the hood.
>>>>
>>>> My apps seem to run for a long time as a few times my scheduler has failed
>>>> and they racked up 10X or even 100X normal sessions, but who knows what
>>>> the user patterns were really — I have had to increase my JAVA VM and set
>>>> memory stuff from JavaMonitor to keep things sane.
>>>>
>>>>
>>>>
>>>>> On Aug 5, 2020, at 3:35 AM, Jérémy DE ROYER via Webobjects-dev
>>>>> <email@hidden <mailto:email@hidden>>
>>>>> wrote:
>>>>>
>>>>> Hi Aaron,
>>>>>
>>>>> (I’m still using EOF) and, for the main apps, I bounce every morning.
>>>>>
>>>>> After updates I sometimes forget to activate the schedules without any
>>>>> problems… but I’m used to do it in the pasts where I had a lot of meomry
>>>>> leaks so I still do it.
>>>>>
>>>>> Jérémy
>>>>>
>>>>>> Le 5 août 2020 à 00:04, Hugi Thordarson via Webobjects-dev
>>>>>> <email@hidden <mailto:email@hidden>>
>>>>>> a écrit :
>>>>>>
>>>>>> Never. Uptime on my apps is usually weeks or months.
>>>>>>
>>>>>> Cycled regularly when I used EOF though. That thing leaks.
>>>>>>
>>>>>> - hugi
>>>>>>
>>>>>>
>>>>>>
>>>>>>> On 4 Aug 2020, at 21:31, Aaron Rosenzweig via Webobjects-dev
>>>>>>> <email@hidden
>>>>>>> <mailto:email@hidden>> wrote:
>>>>>>>
>>>>>>> Personally I feel better bouncing my .woa instances daily. Even if it
>>>>>>> is a small site I have at least two instances and I gracefully cycle
>>>>>>> them on a daily schedule. I feel better knowing that it is fresh every
>>>>>>> morning for the new day.
>>>>>>>
>>>>>>> On the other hand, I could see an argument that a java app shouldn’t
>>>>>>> have any memory leaks. The garbage collector should get everything. If
>>>>>>> it cannot do so, then you’ve got something messed up in your app that
>>>>>>> you should track down and rectify. So maybe it’s better to just leave
>>>>>>> your .woa instances running forever until the next redeployment to get
>>>>>>> new features.
>>>>>>>
>>>>>>> What does the community do? Do you cycle often (daily, twice per day,
>>>>>>> or once per week) or do you leaving your instances running without a
>>>>>>> scheduled restart?
>>>>>>>
>>>>>>> Thanks to all those who chime in :-)
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--
Mit freundlichen Grüßen
Stefan Gärtner
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