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assertion failed on COSS code #138

Open GoogleCodeExporter opened 9 years ago

GoogleCodeExporter commented 9 years ago 
What steps will reproduce the problem?
Don't really know. Using Lusca on an ISP with 3000 users and getting this 2-3 
times a week.

What is the expected output? What do you see instead?

I see this:

2011/01/10 14:15:03| storeCossCreateMemBuf: Maximum number of full buffers 
reached on /usr/local/hyper/var/cache/coss1/stripe. You may need to increase 
the maxfullbuffers option for this cache_dir
2011/01/10 14:15:03| assertion failed: coss/store_io_coss.c:315: "-1 != 
sio->swap_filen"

And lusca crashes.

Tried squid-2.7-stable9 with the same results...it's not lusca-only.

What version of the product are you using? On what operating system?
Linux 2.6.34, LUSCA_HEAD-r14756

Please provide any additional information below.

My coss setup is this:

cache_dir coss /coss1 65520 max-size=1048575 max-stripe-waste=32768 
block-size=4096 maxfullbufs=20
cache_dir coss /coss2 65520 max-size=1048575 max-stripe-waste=32768 
block-size=4096 maxfullbufs=20
cache_dir coss /coss3 65520 max-size=1048575 max-stripe-waste=32768 
block-size=4096 maxfullbufs=20

mgr:info shows this:

Internal Data Structures:
    6922169 StoreEntries
       883 StoreEntries with MemObjects
        49 Hot Object Cache Items
    6921398 on-disk objects

After rebuilding, mgr:coss shows:

                   OPS     SUCCESS        FAIL
      open     112106     112106          0
    create      54975      54975          0
     close     166997     166997          0
    unlink    6720805    6720805          0
      read     255877     104010          0
     write     222902     222902          0
   s_write        829        829          0

stripes:          33
dead_stripes:     0
alloc.alloc:      54975
alloc.realloc:    8494
alloc.memalloc:   102149
alloc.collisions: 0
disk_overflows:   0
stripe_overflows: 833
open_mem_hits:    8096
open_mem_misses:  104010

Original issue reported on code.google.com by robertpi...@gmail.com on 10 Jan 2011 at 5:20

GoogleCodeExporter commented 9 years ago 
try increase membufs and decrease max-size.
personally recommend 32k max-size and 500MB membufs...so far stable at 700+ 
req/sec

Original comment by chudy.fernandez on 9 Mar 2011 at 6:12