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From Chris Teoh <chris.t...@gmail.com>
Subject Re: How to recover flow graphics after running NiFi.sh install?
Date Tue, 22 Sep 2015 02:13:35 GMT
That being said, is there a way to backup and restore your flow files and
flow graphics?
On Sat, 19 Sep 2015 at 2:36 PM, Chris Teoh <chris.teoh@gmail.com> wrote:

> I was running NiFi as a non root and created all my flows with that. I
> then ran install as root and started it as root. That was when I lost all
> the flows, I was presented with an empty NiFi page.
> On Sat, 19 Sep 2015 at 10:11 am Mark Payne <markap14@hotmail.com> wrote:
>
>> Chris,
>>
>> It's really odd that you would lose the flow. I tried to replicate.
>> Created a flow as myself. Then installed as a service as root. Restarted
>> via "sudo service nifi start" and everything was fine.
>> Then restarted as myself. This time, it failed to started because it
>> didn't have sufficient read permissions on flow.xml.gz.
>> Restarted as root and everything was fine.
>> Changed permissions and restarted as myself and all was fine.
>>
>> Any other details as to what may have caused this to happen?
>>
>> Thanks
>> -Mark
>>
>>
>> On Sep 18, 2015, at 7:20 PM, Chris Teoh <chris.teoh@gmail.com> wrote:
>>
>> Thanks for the prompt responses Mark.
>>
>> The size of flow.xml.gz is 20 bytes. A zcat returns nothing.
>>
>> I'm seeing the process run as sudo which seems ok but I never saw it
>> listen on port 8080. I suspect because it was initially running as root
>> after I ran install before I changed run.as setting, the non root user
>> was failing to write the logs as they were owned by root.
>>
>> I changed the ownership back to the non root user and just manually su to
>> that user and ran it. This time was fine except I had already lost the
>> flows when I first ran as root.
>>
>> On Fri, 18 Sep 2015 at 11:10 pm Mark Payne <markap14@hotmail.com> wrote:
>>
>>> Chris,
>>>
>>> We do have some work to do here to make the run.as work better.
>>> Currently, the way that it works
>>> is that you will see the bootstrap run as root, and it launches a new
>>> process using "sudo -u ..."
>>> That process that is launched with "sudo -u" is the NiFi instance, so
>>> that it should be run as the user
>>> specified. However, the bootstrap itself is still launched as root, I
>>> believe.
>>>
>>> Is this not what you are seeing?
>>>
>>> Thanks
>>> -Mark
>>>
>>>
>>> On Sep 18, 2015, at 2:09 AM, Chris Teoh <chris.teoh@gmail.com> wrote:
>>>
>>> I tried editing the run.as setting NiFi properties file but that
>>> appears to not work. I see the root owned process running sudo -u user but
>>> doesn't seem to be working.
>>> On Fri, 18 Sep 2015 at 4:05 pm Chris Teoh <chris.teoh@gmail.com> wrote:
>>>
>>>> Yes I ran the install as root. Previously just ran as a normal user
>>>> running NiFi.sh start
>>>> On Fri, 18 Sep 2015 at 3:47 pm Joe Witt <joe.witt@gmail.com> wrote:
>>>>
>>>>> Chris,
>>>>>
>>>>> Unfortunately if your conf/flow.xml. was overwritten that is 'it' most
>>>>> likely.  There is a (very) small chance that a partially written
>>>>> version of the flow still exists there with it and you can check that
>>>>> with something like 'ls -altr'.
>>>>>
>>>>> So when you ran the nifi.sh install script you ran it as root?  Want
>>>>> to better understand the steps you followed so we can help prevent
>>>>> this in the future if possible.
>>>>>
>>>>> Thanks
>>>>> Joe
>>>>>
>>>>> On Thu, Sep 17, 2015 at 10:39 PM, Chris Teoh <chris.teoh@gmail.com>
>>>>> wrote:
>>>>> > Hi,
>>>>> >
>>>>> > I was testing NiFi using a test user and then decided to install
it
>>>>> using
>>>>> > the NiFi.sh install script. Now it is running as root and I have
>>>>> lost all
>>>>> > the flows. Flow.xml.gz is empty. How do I get it back?
>>>>> >
>>>>> > Thanks in advance
>>>>> > Chris
>>>>>
>>>>
>>>
>>

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