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From Yongming Zhao <ming....@gmail.com>
Subject Re: Do not use the disks
Date Sun, 17 Jan 2016 15:44:56 GMT
in most case when a cache is not active, there maybe a crash that the server fail to recover,
please check the last crash and paste the stack. also you may find out that one or two traffic_server
thread(ET_NET*) running at 100% CPU, tracing into the recover functions.

if that is the case, best practice is clear the cache. yes, it is awful, you may need to try
the latest version you get from the official downloads, if the bug still bother you, file
a ticket in the jira and paste as much information as possible, as always, patch is welcome.




- Yongming Zhao 赵永明

> 在 2016年1月17日,下午12:59,Leif Hedstrom <zwoop@apache.org> 写道:
> 
> 
>> On Jan 16, 2016, at 3:22 AM, feng D <fengidri@gmail.com <mailto:fengidri@gmail.com>>
wrote:
>> 
>> Hi:
>>     
>>      I use the traffic server as the Reverse Proxy with four disks as the cache.
But I found that traffic server not use the disks.  The log in diags.log has not 'cache enabled'
and not 'cache disabled’.
> 
> A guess is that this means something:
> 
> 
> [Jan 16 18:02:54.428] Server {0x7fade53d57e0} WARNING: unable to open cache disk(s):
InterimCache Cache Disabled
> 
> 
> 
> Like, did you misconfigure your records.config for the obsoleted (removed) interim SSD
cache? We don’t have any support for that (removed) feature, so our recommendation is to
not use it even in the old 4.2.x versions (you should upgrade to v4.3.x at least).
> 
> — Leif
> 
>>      
>>      The version is 4.2.2. 
>>      
>> 
>>        Who can help me.                       
>> 
>> 
>>                                                                                 
                       Thanks!!!!
>> 
>> I open cache_init debug then the diags looks like this:
>> ***********************************************************************
>> [Jan 16 18:02:52.407] {0x7fade53d57e0} STATUS: opened /disk/ssd1/logs/trafficserver/diags.log
>> [Jan 16 18:02:52.407] {0x7fade53d57e0} NOTE: updated diags config
>> [Jan 16 18:02:54.418] Server {0x7fade53d57e0} NOTE: cache clustering disabled
>> [Jan 16 18:02:54.419] Server {0x7fade53d57e0} WARNING: no interim disks specified
in proxy.config.cache.interim.storage:
>> [Jan 16 18:02:54.422] Server {0x7fade53d57e0} NOTE: ip_allow.config updated, reloading
>> [Jan 16 18:02:54.426] Server {0x7fade53d57e0} NOTE: cache clustering disabled
>> [Jan 16 18:02:54.427] Server {0x7fade53d57e0} NOTE: logging initialized[3], logging_mode
= 1
>> [Jan 16 18:02:54.428] Server {0x7fade53d57e0} WARNING: unable to open cache disk(s):
InterimCache Cache Disabled
>> [Jan 16 18:02:54.428] Server {0x7fade53d57e0} WARNING: [ReverseProxy] Unable to determine
default redirect url for "referer" filter.
>> [Jan 16 18:02:54.434] Server {0x7fade53d57e0} NOTE: traffic server running
>> [Jan 16 18:02:54.465] Server {0x7faddfdb5700} NOTE: reading directory '/dev/sde 368640:244189278'
>> [Jan 16 18:02:54.465] Server {0x7faddfeb6700} NOTE: reading directory '/dev/sdd 368640:244189278'
>> [Jan 16 18:02:54.465] Server {0x7fade53d57e0} NOTE: reading directory '/dev/sdb 368640:244189278'
>> [Jan 16 18:02:54.465] Server {0x7faddfcb4700} NOTE: reading directory '/dev/sdc 368640:244189278'
>> [Jan 16 18:02:54.469] Server {0x7faddfeb6700} NOTE: using directory A for '/dev/sdd
368640:244189278'
>> [Jan 16 18:02:54.469] Server {0x7faddfcb4700} NOTE: using directory A for '/dev/sdc
368640:244189278'
>> [Jan 16 18:02:54.479] Server {0x7faddfdb5700} NOTE: using directory B for '/dev/sde
368640:244189278'
>> [Jan 16 18:02:54.489] Server {0x7fade53d57e0} NOTE: using directory A for '/dev/sdb
368640:244189278'
>> [Jan 16 18:02:57.403] Server {0x7faddfdb5700} NOTE: recovery clearing offsets [785550164480,
785653652992] sync_serial 10847 next 10848
>> ***********************************************************************
>> 
>> 
>> 
>> The tail of traffic.out is like this:
>> *********************************************************************************************************
>> [Jan 16 18:02:54.419] Server {0x7fade53d57e0} DEBUG: (cache_init) Store::read_config:
"/dev/sde
>> "
>> [Jan 16 18:02:54.419] Server {0x7fade53d57e0} DEBUG: (cache_init) Store::read_config
- ns = NEW (new Span); ns->init("/dev/sde",-1), ns->vol_num=0
>> [Jan 16 18:02:54.419] Server {0x7fade53d57e0} DEBUG: (cache_init) Span::init("/dev/sde",-1)
>> [Jan 16 18:02:54.419] Server {0x7fade53d57e0} DEBUG: (cache_init) Span::init - S_IFBLK
- devnum = 2112
>> [Jan 16 18:02:54.419] Server {0x7fade53d57e0} DEBUG: (cache_init) Span::init - socketManager.open("/dev/sde",
O_RDONLY) = 11
>> [Jan 16 18:02:54.419] Server {0x7fade53d57e0} DEBUG: (cache_init) Span::init - /dev/sde
hw_sector_size=512 is_disk=1 adjusted_sec=1
>> [Jan 16 18:02:54.419] Server {0x7fade53d57e0} DEBUG: (cache_init) Span::init - /dev/sde
alignment = 0
>> [Jan 16 18:02:54.419] Server {0x7fade53d57e0} DEBUG: (cache_init) Span::init physical
sectors 3907029168 total size 2000398934016 geometry size 2000398934016 store blocks 244189323
>> [Jan 16 18:02:54.419] Server {0x7fade53d57e0} DEBUG: (cache_init) Store::read_config:
"/dev/sdc
>> "
>> [Jan 16 18:02:54.419] Server {0x7fade53d57e0} DEBUG: (cache_init) Store::read_config
- ns = NEW (new Span); ns->init("/dev/sdc",-1), ns->vol_num=0
>> [Jan 16 18:02:54.419] Server {0x7fade53d57e0} DEBUG: (cache_init) Span::init("/dev/sdc",-1)
>> [Jan 16 18:02:54.419] Server {0x7fade53d57e0} DEBUG: (cache_init) Span::init - S_IFBLK
- devnum = 2080
>> [Jan 16 18:02:54.419] Server {0x7fade53d57e0} DEBUG: (cache_init) Span::init - socketManager.open("/dev/sdc",
O_RDONLY) = 11
>> [Jan 16 18:02:54.419] Server {0x7fade53d57e0} DEBUG: (cache_init) Span::init - /dev/sdc
hw_sector_size=512 is_disk=1 adjusted_sec=1
>> [Jan 16 18:02:54.419] Server {0x7fade53d57e0} DEBUG: (cache_init) Span::init - /dev/sdc
alignment = 0
>> [Jan 16 18:02:54.419] Server {0x7fade53d57e0} DEBUG: (cache_init) Span::init physical
sectors 3907029168 total size 2000398934016 geometry size 2000398934016 store blocks 244189323
>> [Jan 16 18:02:54.426] Server {0x7fade53d57e0} DEBUG: (cache_init) Span::init("/usr/local/ats_422/var/trafficserver",33554432)
>> [Jan 16 18:02:54.426] Server {0x7fade53d57e0} DEBUG: (cache_init) Span::init - S_IFDIR
- devnum = 2051
>> [Jan 16 18:02:54.426] Server {0x7fade53d57e0} DEBUG: (cache_init) Span::init - socketManager.open("/usr/local/ats_422/var/trafficserver",
O_RDONLY) = 28
>> [Jan 16 18:02:54.426] Server {0x7fade53d57e0} DEBUG: (cache_init) Span::init - is_disk
= 0, raw device = no
>> [Jan 16 18:02:54.426] Server {0x7fade53d57e0} DEBUG: (cache_init) Span::init - mapped
file "/usr/local/ats_422/var/trafficserver", 33554432
>> [Jan 16 18:02:54.455] Server {0x7faddfab2700} DEBUG: (cache_init) Cache::open - proxy.config.cache.min_average_object_size
= 102400
>> [Jan 16 18:02:54.465] Server {0x7faddfdb5700} DEBUG: (cache_init) allocating 195338240
directory bytes for a 2000398565376 byte volume (0.009765%)
>> [Jan 16 18:02:54.465] Server {0x7faddfeb6700} DEBUG: (cache_init) allocating 195338240
directory bytes for a 2000398565376 byte volume (0.009765%)
>> [Jan 16 18:02:54.465] Server {0x7fade53d57e0} DEBUG: (cache_init) allocating 195338240
directory bytes for a 2000398565376 byte volume (0.009765%)
>> [Jan 16 18:02:54.465] Server {0x7faddfcb4700} DEBUG: (cache_init) allocating 195338240
directory bytes for a 2000398565376 byte volume (0.009765%)
>> 
>> *********************************************************************************************************
>> 
> 


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