Can't Connect Issues

[Szántó Iván]

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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