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From Alan Carroll <solidwallofc...@yahoo-inc.com>
Subject Re: Corrupted cache? Looping on directory cleaning.
Date Tue, 01 Nov 2016 17:51:15 GMT
Hmmm. I think that's too old for using the stripe inspector. There's at least one JIRA ticket
on this already, at this point unfortunately I think your only option is to clear the cache,
although you said you had already done that? On the other hand it shouldn't be cleaning anything
if the cache has been cleared.
 

    On Tuesday, November 1, 2016 11:35 AM, Steve Malenfant <smalenfant@gmail.com> wrote:
 

 We have a server which had a bad disk (out of 24). Trafficserver was stopped and restarted
before the disk was swapped (the disk has been marked offline for a week). This is on version
is 5.3.2 with some patches.
Stop, cleared the cache and restarted. Problem is gone.
Once it was restarted, I kept seeing this with "perf top" and CPU usage is 100% with load
average of 1. Every request is a MISS.
Anybody seen this before?  

Been going for more than 24 hours and server has been idle :
  50.74%  traffic_server       [.] dir_clean_segment  30.65%  traffic_server    
  [.] dir_delete_entry
If I look a disk IO, there is nothing going on. Looks like stuck in a loop. Enabling debug
produced the following :[Nov  1 16:06:31.127] Server {0x2b305e827700} DEBUG: (dir_clean)
cleaning 0x2b372a76a838 tag 1A boffset 0 b 0x2b372a76a838 p (nil) l -1[Nov  1 16:06:31.127]
Server {0x2b305e827700} DEBUG: (dir_clean) cleaning 0x2b372a76a838 tag 1E boffset 0 b 0x2b372a76a838
p (nil) l -1[Nov  1 16:06:31.127] Server {0x2b305e827700} DEBUG: (dir_clean) cleaning 0x2b372a76a838
tag 2E boffset 0 b 0x2b372a76a838 p (nil) l -1[Nov  1 16:06:31.127] Server {0x2b305e827700}
DEBUG: (dir_clean) cleaning 0x2b372a76a838 tag 32 boffset 0 b 0x2b372a76a838 p (nil) l -1[Nov 
1 16:06:31.127] Server {0x2b305e827700} DEBUG: (dir_clean) cleaning 0x2b372a76a838 tag 3A
boffset 0 b 0x2b372a76a838 p (nil) l -1[Nov  1 16:06:31.127] Server {0x2b305e827700} DEBUG:
(dir_clean) cleaning 0x2b372a76a838 tag 3E boffset 0 b 0x2b372a76a838 p (nil) l -1[Nov  1
16:06:31.127] Server {0x2b305e827700} DEBUG: (dir_clean) cleaning 0x2b372a76a838 tag 42 boffset
0 b 0x2b372a76a838 p (nil) l -1[Nov  1 16:18:31.102] Server {0x2b305e827700} DEBUG: (dir_clean)
cleaning 0x2b372a76a838 tag 171 boffset 0 b 0x2b372a76a838 p (nil) l -1


   
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