Aumento rápido de objects n_lru_nuked en caching de barniz con suficiente malloc de sobra

Estamos usando verniz 3.0.3-3.5 en amzn ec2 y se asigna alnetworkingedor de 3G de malloc. Comienza con el almacenamiento en caching normal del object pero cuando toca un cierto número de object + objecthead (alnetworkingedor de 14k), los objects n_lru_nuked comienzan a boost rápidamente y ningún object se satura. Probado también con la versión 3.0.4-1, pero no funcionó. Por favor, ayúdame a encontrar el problema. Déjeme saber si cualquier otra información es requerida.

A continuación se muestra el ajuste:

DAEMON_OPTS="-a 0.0.0.0:80,:8980 \ -T localhost:6082 \ -f /etc/varnish/default.vcl \ -u varnish -g varnish \ -s malloc,3G" 

Estadísticas info:

 client_conn 1119377 4.89 Client connections accepted client_drop 0 0.00 Connection dropped, no sess/wrk client_req 7253764 31.69 Client requests received cache_hit 276698 1.21 Cache hits cache_hitpass 205516 0.90 Cache hits for pass cache_miss 2478864 10.83 Cache misses backend_conn 405876 1.77 Backend conn. success backend_unhealthy 3421 0.01 Backend conn. not attempted backend_busy 0 0.00 Backend conn. too many backend_fail 3938 0.02 Backend conn. failures backend_reuse 6528731 28.53 Backend conn. reuses backend_toolate 50598 0.22 Backend conn. was closed backend_recycle 6579393 28.75 Backend conn. recycles backend_retry 1351 0.01 Backend conn. retry fetch_head 111720 0.49 Fetch head fetch_length 216430 0.95 Fetch with Length fetch_chunked 6486185 28.34 Fetch chunked fetch_eof 0 0.00 Fetch EOF fetch_bad 0 0.00 Fetch had bad headers fetch_close 74820 0.33 Fetch wanted close fetch_oldhttp 0 0.00 Fetch pre HTTP/1.1 closed fetch_zero 0 0.00 Fetch zero len fetch_failed 17 0.00 Fetch failed fetch_1xx 0 0.00 Fetch no body (1xx) fetch_204 0 0.00 Fetch no body (204) fetch_304 9986 0.04 Fetch no body (304) n_sess_mem 107 . N struct sess_mem n_sess 37 . N struct sess n_object 4373 . N struct object n_vampireobject 0 . N unresurrected objects n_objectcore 4384 . N struct objectcore n_objecthead 8041 . N struct objecthead n_waitinglist 3180 . N struct waitinglist n_vbc 75 . N struct vbc n_wrk 41 . N worker threads n_wrk_create 1585 0.01 N worker threads created n_wrk_failed 0 0.00 N worker threads not created n_wrk_max 0 0.00 N worker threads limited n_wrk_lqueue 0 0.00 work request queue length n_wrk_queued 12335 0.05 N queued work requests n_wrk_drop 0 0.00 N dropped work requests n_backend 34 . N backends n_expinetworking 501853 . N expinetworking objects n_lru_nuked 1972544 . N LRU nuked objects n_lru_moved 249223 . N LRU moved objects losthdr 0 0.00 HTTP header overflows n_objsendfile 0 0.00 Objects sent with sendfile n_objwrite 7072900 30.90 Objects sent with write n_objoverflow 0 0.00 Objects overflowing workspace s_sess 1119369 4.89 Total Sessions s_req 7253764 31.69 Total Requests s_pipe 39412 0.17 Total pipe s_pass 4421895 19.32 Total pass s_fetch 6899124 30.14 Total fetch s_hdrbytes 3244163451 14174.64 Total header bytes s_bodybytes 54294899374 237229.27 Total body bytes sess_closed 275785 1.20 Session Closed sess_pipeline 2 0.00 Session Pipeline sess_readahead 3 0.00 Session Read Ahead sess_linger 7181910 31.38 Session Linger sess_herd 3441115 15.04 Session herd shm_records 662367830 2894.07 SHM records shm_writes 31444934 137.39 SHM writes shm_flushes 1 0.00 SHM flushes due to overflow shm_cont 5840 0.03 SHM MTX contention shm_cycles 325 0.00 SHM cycles through buffer sms_nreq 32172 0.14 SMS allocator requests sms_nobj 0 . SMS outstanding allocations sms_nbytes 0 . SMS outstanding bytes sms_balloc 12256989 . SMS bytes allocated sms_bfree 12256989 . SMS bytes freed backend_req 6900427 30.15 Backend requests made n_vcl 1 0.00 N vcl total n_vcl_avail 1 0.00 N vcl available n_vcl_discard 0 0.00 N vcl discarded n_ban 1 . N total active bans n_ban_gone 1 . N total gone bans n_ban_add 1 0.00 N new bans added n_ban_retire 0 0.00 N old bans deleted n_ban_obj_test 0 0.00 N objects tested n_ban_re_test 0 0.00 N regexps tested against n_ban_dups 0 0.00 N duplicate bans removed hcb_nolock 2961085 12.94 HCB Lookups without lock hcb_lock 2464684 10.77 HCB Lookups with lock hcb_insert 2464679 10.77 HCB Inserts esi_errors 0 0.00 ESI parse errors (unlock) esi_warnings 0 0.00 ESI parse warnings (unlock) accept_fail 0 0.00 Accept failures client_drop_late 0 0.00 Connection dropped late uptime 228871 1.00 Client uptime dir_dns_lookups 0 0.00 DNS director lookups dir_dns_failed 0 0.00 DNS director failed lookups dir_dns_hit 0 0.00 DNS director cached lookups hit dir_dns_cache_full 0 0.00 DNS director full dnscache vmods 0 . Loaded VMODs n_gzip 0 0.00 Gzip operations n_gunzip 5852234 25.57 Gunzip operations LCK.sms.creat 1 0.00 Created locks LCK.sms.destroy 0 0.00 Destroyed locks LCK.sms.locks 96516 0.42 Lock Operations LCK.sms.colls 0 0.00 Collisions LCK.smp.creat 0 0.00 Created locks LCK.smp.destroy 0 0.00 Destroyed locks LCK.smp.locks 0 0.00 Lock Operations LCK.smp.colls 0 0.00 Collisions LCK.sma.creat 1 0.00 Created locks LCK.sma.destroy 0 0.00 Destroyed locks LCK.sma.locks 21844471 95.44 Lock Operations LCK.sma.colls 0 0.00 Collisions LCK.smf.creat 1 0.00 Created locks LCK.smf.destroy 0 0.00 Destroyed locks LCK.smf.locks 14105325 61.63 Lock Operations LCK.smf.colls 0 0.00 Collisions LCK.hsl.creat 0 0.00 Created locks LCK.hsl.destroy 0 0.00 Destroyed locks LCK.hsl.locks 0 0.00 Lock Operations LCK.hsl.colls 0 0.00 Collisions LCK.hcb.creat 1 0.00 Created locks LCK.hcb.destroy 0 0.00 Destroyed locks LCK.hcb.locks 4926255 21.52 Lock Operations LCK.hcb.colls 0 0.00 Collisions LCK.hcl.creat 0 0.00 Created locks LCK.hcl.destroy 0 0.00 Destroyed locks LCK.hcl.locks 0 0.00 Lock Operations LCK.hcl.colls 0 0.00 Collisions LCK.vcl.creat 1 0.00 Created locks LCK.vcl.destroy 0 0.00 Destroyed locks LCK.vcl.locks 6438 0.03 Lock Operations LCK.vcl.colls 0 0.00 Collisions LCK.stat.creat 1 0.00 Created locks LCK.stat.destroy 0 0.00 Destroyed locks LCK.stat.locks 1119443 4.89 Lock Operations LCK.stat.colls 0 0.00 Collisions LCK.sessmem.creat 1 0.00 Created locks LCK.sessmem.destroy 0 0.00 Destroyed locks LCK.sessmem.locks 1136901 4.97 Lock Operations LCK.sessmem.colls 0 0.00 Collisions LCK.wstat.creat 1 0.00 Created locks LCK.wstat.destroy 0 0.00 Destroyed locks LCK.wstat.locks 499424 2.18 Lock Operations LCK.wstat.colls 0 0.00 Collisions LCK.herder.creat 1 0.00 Created locks LCK.herder.destroy 0 0.00 Destroyed locks LCK.herder.locks 12215 0.05 Lock Operations LCK.herder.colls 0 0.00 Collisions LCK.wq.creat 2 0.00 Created locks LCK.wq.destroy 0 0.00 Destroyed locks LCK.wq.locks 7893519 34.49 Lock Operations LCK.wq.colls 0 0.00 Collisions LCK.objhdr.creat 2465018 10.77 Created locks LCK.objhdr.destroy 2457038 10.74 Destroyed locks LCK.objhdr.locks 16808877 73.44 Lock Operations LCK.objhdr.colls 0 0.00 Collisions LCK.exp.creat 1 0.00 Created locks LCK.exp.destroy 0 0.00 Destroyed locks LCK.exp.locks 5182011 22.64 Lock Operations LCK.exp.colls 0 0.00 Collisions LCK.lru.creat 2 0.00 Created locks LCK.lru.destroy 0 0.00 Destroyed locks LCK.lru.locks 4451317 19.45 Lock Operations LCK.lru.colls 0 0.00 Collisions LCK.cli.creat 1 0.00 Created locks LCK.cli.destroy 0 0.00 Destroyed locks LCK.cli.locks 76262 0.33 Lock Operations LCK.cli.colls 0 0.00 Collisions LCK.ban.creat 1 0.00 Created locks LCK.ban.destroy 0 0.00 Destroyed locks LCK.ban.locks 5182052 22.64 Lock Operations LCK.ban.colls 0 0.00 Collisions LCK.vbp.creat 1 0.00 Created locks LCK.vbp.destroy 0 0.00 Destroyed locks LCK.vbp.locks 3155814 13.79 Lock Operations LCK.vbp.colls 0 0.00 Collisions LCK.vbe.creat 1 0.00 Created locks LCK.vbe.destroy 0 0.00 Destroyed locks LCK.vbe.locks 819553 3.58 Lock Operations LCK.vbe.colls 0 0.00 Collisions LCK.backend.creat 34 0.00 Created locks LCK.backend.destroy 0 0.00 Destroyed locks LCK.backend.locks 14391476 62.88 Lock Operations LCK.backend.colls 0 0.00 Collisions SMF.s0.c_req 6836951 29.87 Allocator requests SMF.s0.c_fail 1972544 8.62 Allocator failures SMF.s0.c_bytes 327625674752 1431486.19 Bytes allocated SMF.s0.c_freed 327564849152 1431220.42 Bytes freed SMF.s0.g_alloc 8403 . Allocations outstanding SMF.s0.g_bytes 60825600 . Bytes outstanding SMF.s0.g_space 44032000 . Bytes available SMF.s0.g_smf 8805 . N struct smf SMF.s0.g_smf_frag 402 . N small free smf SMF.s0.g_smf_large 0 . N large free smf SMA.Transient.c_req 8848148 38.66 Allocator requests SMA.Transient.c_fail 0 0.00 Allocator failures SMA.Transient.c_bytes 564174348191 2465032.04 Bytes allocated SMA.Transient.c_freed 564174332082 2465031.97 Bytes freed SMA.Transient.g_alloc 10 . Allocations outstanding SMA.Transient.g_bytes 16109 . Bytes outstanding SMA.Transient.g_space 0 . Bytes available