[SOLVED] directory /run/mpd gets deleted at reboot

Hello
I had MPD up and running, everything worked fine, until reboot.
I then found out, that the folder /run/mpd which should contain mpd.pid gets deleted at reboot.
Why does this folder get deleted?
When i manually create the folder again and chown it to mpd, it all works fine again.
Thanks for your help,
SBolz
Last edited by SBolz (2012-10-06 08:03:49)

SBolz wrote:Apparently it doesn't. How can i make sure it gets created and the user mpd has writing permissions for it?
man tmpfiles.d - if you look at the files provided by the mpd package, you'll see a file mpd.conf in /usr/lib/tmpfiles.d which should generate the directory on boot.
(also, the systemd service for a separate-user mpd doesn't need the pidfile at all)
Rasi wrote:that whole privileged user thing in mpd is just complicating things and simply not needed.
That depends on what your actual use case is, does it not? Nice plug for your script though
Last edited by ZekeSulastin (2012-10-05 16:27:15)

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So I copy pasted SOAP Traces for first two of
<m:GetItem>100 items</m:GetItem>
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This is the pattern in many test runs.
Due to this these overlapping mails, these mails are getting processed twice. Also the attempt to second time delete them was throwing exception : The specified object was not found in the store.
So I guess there is time delay in delete mail API call and mails actually getting deleted, between which they are getting refetched.
Q2. How can I handle this to avoid redundant processing of mails and unnecessary exceptions.

I am polling Exchange Server to fetch all the mails left in the Inbox and then fetching them, processing them and finally moving them to the deleted folder. My procedure takes following form of EWS Managed API calls:
1 itemResults = service.FindItems(WellKnownFolderName.Inbox, itemView);
2 //some code...
3 service.LoadPropertiesForItems(itemResults.Items, itItemPropSet);
4 //some code...
5 foreach(Item item in itemResults)
6 {
7 //process item
8 item.Delete(DeleteMode.MoveToDeletedItems);
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After test run, I realized some mails are getting processed multiple times.
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Logically below set of SOAP Packets (let us call it "Set 1") should occur only once:
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<m:FindItemResponse>...</m:FindItemResponse> //generated by line 1
<m:GetItem>...</m:GetItem> //generated by line 3
<m:GetItemResponse>...</m:GetItemResponse> //generated by line 3
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<m:FindItemResponse>100 items</m:FindItemResponse>
<m:GetItem>100 items</m:GetItem>
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//2nd occurence
<m:FindItem>100 items</m:FindItem>
<m:FindItemResponse>100 items</m:FindItemResponse>
<m:GetItem>100 items</m:GetItem>
<m:GetItemResponse>35 items</m:GetItemResponse>
//3rd occurence
<m:FindItem>100 items</m:FindItem>
<m:FindItemResponse>100 items</m:FindItemResponse>
<m:GetItem>100 items</m:GetItem>
<m:GetItemResponse>100 items</m:GetItemResponse>
//4th occurence
<m:FindItem>35 items</m:FindItem>
<m:FindItemResponse>35 items</m:FindItemResponse>
<m:GetItem>35 items</m:GetItem>
<m:GetItemResponse>35 items</m:GetItemResponse> //****followed by 335 occurences of the Delete SOAP packets****<m:DeleteItem>...</m:DeleteItem>
<m:DeleteItemRepsonse>...</m:DeleteItemRepsonse>
//334 more of above
So there are 100 + 100 + 100 + 35 = 335 items actually getting handled, which is 10 more than what are actually present in the inbox.
Also notice that Delete SOAP packets are queued till end. They are not dispatched in burst.
First thing I realize dispatching SOAP packets in burst of 100s is EWS Managed API behavior. I guess there must be traffic reason behind it and there must be some configuration setting to tweak it.
Q1. How can we change this count of 100?
I inferred that there are some overlaps in fetching of mails.
So I copy pasted SOAP Traces for first two of
<m:GetItem>100 items</m:GetItem>
in two different files, and compared them in text comparer. I realised that some mails that are at the end of the first 100s were reappearing at the beginning of 2nd 100:
This is the pattern in many test runs.
Due to this these overlapping mails, these mails are getting processed twice. Also the attempt to second time delete them was throwing exception : The specified object was not found in the store.
So I guess there is time delay in delete mail API call and mails actually getting deleted, between which they are getting refetched.
Q2. How can I handle this to avoid redundant processing of mails and unnecessary exceptions.

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Hi folks,
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The job details for the deletion of past purchase requisitions.
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~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
ABAP Program name :/SAPAPO/RLCDELETE
VARIANT Details
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Settings-> Delete Transaction Data ->In R3 & APO (ticked)
~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
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Pls suggest some remedy for this.
MMTIA
Kumar
Edited by: Blue Lotus on Mar 14, 2011 5:51 PM

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Thanks
Aparna

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audio_output {
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Caspian - La Cerva
[paused] #2/10 0:00/4:59 (0%)
volume: n/a repeat: off random: off single: off consume: off
ERROR: problems opening audio device
mpc.log output:
ALSA lib confmisc.c:768:(parse_card) cannot find card '0'
ALSA lib conf.c:4184:(_snd_config_evaluate) function snd_func_card_driver returned error: No such file or directory
ALSA lib confmisc.c:392:(snd_func_concat) error evaluating strings
ALSA lib conf.c:4184:(_snd_config_evaluate) function snd_func_concat returned error: No such file or directory
ALSA lib confmisc.c:1251:(snd_func_refer) error evaluating name
ALSA lib conf.c:4184:(_snd_config_evaluate) function snd_func_refer returned error: No such file or directory
ALSA lib conf.c:4663:(snd_config_expand) Evaluate error: No such file or directory
ALSA lib pcm.c:2212:(snd_pcm_open_noupdate) Unknown PCM default
Sep 22 10:08 : output: Failed to open "HDA-Intel" [alsa]: Failed to open ALSA device "default": No such file or directory
I tried with different device and mixer settings and the error is always the same. It can't open alsa device.
Any Ideas?
Thank you.
Last edited by xzakox (2011-09-22 20:04:33)

Check that mpd is really being run as the mpd user, and that id lists audio for the mpd user. Also post your whole mpd.conf and the output from amixer when running as the user you run mpd as.
Last edited by Mr.Elendig (2011-09-22 11:43:35)

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Debugging will solve your problem.
The solution for this question is /h -> hit scroll button

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