Can't Connect Issues

Fri May 30 14:44:40 UTC 2008

Please read my mail and the whole thread with the details at

http://lists.danga.com/pipermail/memcached/2008-May/006848.html

I will make some arrangements for making it available for you next week.
Ivan

2008. máj. 29, 22:16 DU dátummal Email Lists <lists at ezboardcorp.com> ezt
írta:

> Sure I'll Give it a try, what issues where you experiencing??
> 
> T
> 
> 
> 
> On Thu, May 29, 2008 at 12:47 AM, Szántó Iván <Szanto.Ivan at ulx.hu>
> wrote:
> 
> > 
> > Hi Tachu,
> > 
> > 
> > this might be a similar problem to what we experienced.
> > Would you like to give a try to our garbage collector?
> > 
> > Ivan
> > 
> > 
> > 2008. máj. 28, 21:27 DU dátummal Email Lists <lists at ezboardcorp.com>
> > ezt írta:
> > 
> > 
> > 
> > 
> > 
> > > I continue to have cant connect issues with php and memcache
> > > connections
> > > 
> > > Here is my memcache extension info
> > > 
> > > memcache
> > > 
> > > memcache support => enabled
> > > Active persistent connections => 0
> > > Version => 2.2.3
> > > Revision => $Revision: 1.98 $
> > > 
> > > Directive => Local Value => Master Value
> > > memcache.allow_failover => 1 => 1
> > > memcache.chunk_size => 8192 => 8192
> > > memcache.default_port => 11211 => 11211
> > > memcache.hash_function => fnv => fnv
> > > memcache.hash_strategy => standard => standard
> > > memcache.max_failover_attempts => 20 => 20
> > > 
> > > All my servers run memcache with this info
> > > 
> > > stats
> > > STAT pid 10873
> > > STAT uptime 1025398
> > > STAT time 1212002320
> > > STAT version 1.2.4
> > > STAT pointer_size 32
> > > STAT rusage_user 4369.616717
> > > STAT rusage_system 8704.080778
> > > STAT curr_items 881362
> > > STAT total_items 107502215
> > > STAT bytes 469183947
> > > STAT curr_connections 1763
> > > STAT total_connections 4640291
> > > STAT connection_structures 3983
> > > STAT cmd_get 140951340
> > > STAT cmd_set 107413099
> > > STAT get_hits 129967586
> > > STAT get_misses 10983754
> > > STAT evictions 809436
> > > STAT bytes_read 137458144520
> > > STAT bytes_written 311553302637
> > > STAT limit_maxbytes 536870912
> > > STAT threads 4
> > > 
> > > I have a pool of 32 servers.
> > > 
> > > For some reason I keep getting constant cant connect error
> > > messages like this
> > > 
> > > memcache_pconnect(): Can't connect to 10.200.1.53:1024, Unknown
> > > error (0)
> > > 
> > > Its not related to a specific server it will randomly report one
> > > as cant connect. I've checked iptables already its not even
> > > running on the memcache server or the apache server iptables -L
> > > Chain INPUT (policy ACCEPT)
> > > target     prot opt source               destination        
> > > 
> > > Chain FORWARD (policy ACCEPT)
> > > target     prot opt source               destination        
> > > 
> > > Chain OUTPUT (policy ACCEPT)
> > > target     prot opt source               destination    
> > > I even have unloaded the module from the kernel
> > > 
> > > lsmod
> > > Module                  Size  Used by
> > > autofs4                24389  2
> > > hidp                   23105  2
> > > rfcomm                 42457  0
> > > l2cap                  29633  10 hidp,rfcomm
> > > bluetooth              53925  5 hidp,rfcomm,l2cap
> > > sunrpc                144253  1
> > > ipv6                  251393  232
> > > dm_multipath           21577  0
> > > raid0                  11841  0
> > > video                  19269  0
> > > sbs                    18533  0
> > > backlight              10049  0
> > > i2c_ec                  9025  1 sbs
> > > button                 10705  0
> > > battery                13637  0
> > > asus_acpi              19289  0
> > > ac                      9157  0
> > > lp                     15849  0
> > > floppy                 57125  0
> > > intel_rng               9793  0
> > > pcspkr                  7105  0
> > > i82875p_edac           10181  0
> > > serio_raw              10693  0
> > > edac_mc                24977  1 i82875p_edac
> > > parport_pc             29157  1
> > > e1000                 119505  0
> > > i2c_i801               11469  0
> > > parport                37513  2 lp,parport_pc
> > > e100                   36809  0
> > > ide_cd                 40033  0
> > > i2c_core               23745  2 i2c_ec,i2c_i801
> > > mii                     9409  1 e100
> > > cdrom                  36705  1 ide_cd
> > > dm_snapshot            20709  0
> > > dm_zero                 6209  0
> > > dm_mirror              28741  0
> > > dm_mod                 58201  9
> > > dm_multipath,dm_snapshot,dm_zero,dm_mirror
> > > ata_piix               18501  0
> > > libata                115833  1 ata_piix
> > > sd_mod                 24897  0
> > > scsi_mod              132685  2 libata,sd_mod
> > > ext3                  123337  2
> > > jbd                    56553  1 ext3
> > > ehci_hcd               32973  0
> > > ohci_hcd               23261  0
> > > uhci_hcd               25421  0
> > > 
> > > If i go to the apache machine and do telnet to memcache machine i
> > > can connect without a problem and run stats or read a key.
> > > 
> > > If anyone has any idea as to what causes this please help.
> > > 
> > > Some info on the servers
> > > 
> > > Linux fl1-9 2.6.18-53.el5 #1 SMP Mon Nov 12 02:22:48 EST 2007 i686
> > > i686 i386 GNU/Linux
> > > 
> > > CentOS release 5 (Final)
> > > 
> > > 2 gigs of ram each. allocating 512 megs to memcache.
> > > 
> > > they both run apache and memcache on them and are load balanced
> > > based on 1 minute avg load
> > > 
> > > typical uptime on machines
> > >  load average: 0.54, 0.73, 0.72
> > > 
> > > If you guys need any more information please let me know ill post
> > > it right away
> > > 
> > > Thanks
> > > 
> > > Tachu
> > > 
> > > 
> > > 

> > 

> 

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