[Freeswitch-users] Question about httapi app cached audio files

Lin, Xiaoping xlin at soleocommunications.com
Sat Aug 27 00:36:58 MSD 2016


Thank you for your explanation. I do like the feature for saving the time of loading and I tested and verified.
In our case, we only have a limited audios which are static but most of audios are from our ad providers and the audios are dynamic and the urls may even dynamically generated. For each call at least the ad url will be different.
Do we have any choice, even disable the catch feature? Just a thought, ideally, if XML can pass a flag indicate a dynamic one or static one and the code will know cache it or not.
We are open to your suggestions!

Thank you very much!

-          Xiaoping

From: Michael Jerris [mailto:mike at jerris.com]
Sent: Friday, August 26, 2016 4:09 PM
To: Lin, Xiaoping <xlin at soleocommunications.com>
Cc: freeswitch-users at lists.freeswitch.org
Subject: Re: [Freeswitch-users] Question about httapi app cached audio files

The point is to re-use the file so it doesn’t have to download it each time.  If its not, you are either downloading a different file each time, or there is some other reason its not using the cache.

On Aug 26, 2016, at 3:56 PM, Lin, Xiaoping <xlin at soleocommunications.com<mailto:xlin at soleocommunications.com>> wrote:

Hi! Mike,

Thank you very much for your reply! I did a little research and find your name in the contributor list of contributors for switch_ivr_play_say.c and hope you do not mind I go further, hope to get your opinion and suggestions.

Our product is running under 60k/hour call volume. Each call may have 3 to 4 files and plus the meta files. Cron job may end up to impact the performance badly.  Our production owner cannot accept that solution.

From the log file I noticed:

(1). Mod_httpapi.c line 2631 created the cache file
(2). switch_ivr_play_say.c:1910 plays the file, even from the message, I cannot tell it plays from the original or from the cached.

I am wondering if the purpose of saving the cache is for playing audio in full from the local, because it creates file with different name each time. If  switch_ivr_play_say.c:1910 knows that it has done with playing, why not just delete the files (wav and meta) after playing? Can we have a quick fix? Any other suggestions?

Many Thanks!

-          Xiaoping

2016-08-26 15:44:24.602281 [NOTICE] mod_dptools.c:1309 Channel [sofia/external/5856414300 at<mailto:sofia/external/5856414300 at>:7060] has been answered
2016-08-26 15:44:24.602281 [DEBUG] switch_channel.c:3770 (sofia/external/5856414300 at<mailto:sofia/external/5856414300 at>:7060) Callstate Change EARLY -> ACTIVE
2016-08-26 15:44:24.602281 [DEBUG] sofia.c:6858 Channel sofia/external/5856414300 at<mailto:sofia/external/5856414300 at>:7060 entering state [completed][200]
EXECUTE sofia/external/5856414300 at<mailto:sofia/external/5856414300 at>:7060 httapi({method=POST,url=;dsars_key=0e9510d6-524d-4489-991b-77b8f400d003&Context=BannerAdApp})
2016-08-26 15:44:24.764249 [CRIT] mod_httapi.c:1153 Debugging Return Data:
<document type="text/freeswitch-httapi">
        <work>  <playback file="<>"
/>      </work>
2016-08-26 15:44:24.764249 [DEBUG] mod_httapi.c:1222 Process Tag: [playback]
2016-08-26 15:44:24.764249 [DEBUG] sofia.c:6858 Channel sofia/external/5856414300 at<mailto:sofia/external/5856414300 at>:7060 entering state [ready][200]
2016-08-26 15:44:24.764249 [DEBUG] mod_httapi.c:2631 caching: url: to /var/lib/freeswitch/storage/http_file_cache/1f1a57f1bbfb2aa96d727a7a3fba94b6.wav (56842 bytes)
2016-08-26 15:44:24.764249 [DEBUG] switch_ivr_play_say.c:1467 Codec Activated L16 at 8000hz 1 channels 20ms
2016-08-26 15:44:24.764249 [DEBUG] switch_rtp.c:6707 Correct audio ip/port confirmed.
2016-08-26 15:44:28.302287 [DEBUG] switch_ivr_play_say.c:1910 done playing file<>
From: freeswitch-users-bounces at lists.freeswitch.org<mailto:freeswitch-users-bounces at lists.freeswitch.org> [mailto:freeswitch-users-bounces at lists.freeswitch.org] On Behalf Of Michael Jerris
Sent: Friday, August 26, 2016 11:49 AM
To: FreeSWITCH Users Help <freeswitch-users at lists.freeswitch.org<mailto:freeswitch-users at lists.freeswitch.org>>
Subject: Re: [Freeswitch-users] Question about httapi app cached audio files

either they are not re using the cache due to cache expiry or other reason not to cache.  A corn job should be able to clean up older files in this for, or could even look at the metadata and kill stale cache files.  I don't think we have any code or script to do this currently.  A script or patch for a command to do that would be a nice addition

On Friday, August 26, 2016, Lin, Xiaoping <xlin at soleocommunications.com<mailto:xlin at soleocommunications.com>> wrote:

We are developing an app using httapi (FreeSwitch 1.6). Our installation and support engineer reported cached audio files have been dumped under


They are not cleaned and take all the disk space after running for a period time. The files list look like:

-rw------- 1 freeswitch daemon   124 Aug 12 16:28 ef98679d646e00a3a6f5b9265a6b8a21.meta
-rw------- 1 freeswitch daemon 91192 Aug 12 16:28 ef98679d646e00a3a6f5b9265a6b8a21.wav
-rw------- 1 freeswitch daemon   137 Aug 16 15:19 f02875bcd1db251e20d286d57aaff373.meta
-rw------- 1 freeswitch daemon 40660 Aug  8 21:21 f02875bcd1db251e20d286d57aaff373.wav
-rw------- 1 freeswitch daemon   124 Aug 12 15:51 f7b50a0efadb7dd589d37ba00115c8d1.meta
-rw------- 1 freeswitch daemon 91192 Aug 12 15:51 f7b50a0efadb7dd589d37ba00115c8d1.wav
-rw------- 1 freeswitch daemon   124 Aug 10 14:08 feb0d10f984b4ea85e9f6645f561bbf4.meta
-rw------- 1 freeswitch daemon 91192 Aug 10 14:08 feb0d10f984b4ea85e9f6645f561bbf4.wav

Even the files are the same, it was saved with different file names and never got cleaned.

Anyone has the same problem and what is the correct way to deal with this?

Many thanks!

-          Xiaoping

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