PowerScale: Problemer med manglende hukommelse forårsaget af Journal BTL-dræning
Summary: Noder kan opleve OOM-relaterede problemer (Out Of Memory), der forårsager nodepanikker, lav ydeevne, manglende respons eller timeouts.
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Symptoms
Noder kan gå i panik og genstarte med fejl, der ligner følgende:
panic @ time 1674259428.301, thread 0xfffffea7dd044080: Journal BTL drain on buf 0xfffffe83960ac990 failed due to timeout. BTL was held by transaction (22:114717860870) [0xfffff82523313920] tracking: getblk_core BTL count: 0 Magic: 0x816a0fef time = 1674259428 cpuid = 25, TSC = 0xe9721183172719 Panic occurred in module kernel loaded at 0xffffffff80200000: Stack: -------------------------------------------------- kernel:jt_btl_timeout+0x2c7 kernel:j_getblk+0x523 kernel:lbm_getblk+0x5e kernel:dev_local_write_block+0x293 kernel:dev_local_write_blocks+0xee kernel:handle_write_blocks+0x4bb kernel:efsidp_call_handler+0x20d kernel:dxt_main+0xb13 kernel:kt_main+0x29e kernel:fork_exit+0x82 --------------------------------------------------
Logfilerne indeholder adskillige OOM-meddelelser, der angiver lave hukommelsesforhold:
OOM: v_wire_count: 10885052, v_active_count: 608 events_since_last_log 110 Malloc Pigs: Type InUse MemUse Requests 8kB dinodes 2154597 3070318K 77501434068 devbuf 171110 646747K 606268226 isi_hash 193633 358194K 711844002 iaddr_set 3139278 196205K 17841421929 newblk 16 131075K 1967260 inodedep 17 65541K 921588 vfscache 4 32961K 4 bar_owner_vec259 254 32176K 226961 linux 168040 27951K 532146137 pp_actor 36696 27625K 5670886744 cred 23116 26417K 15281662709 pcb 155 24593K 2298737 lbm super 4476 21480K 691594 crc_vec200 22477 21194K 683805706 pagedep 8 16385K 113021 Unshown bins account for 167623K Total: 4866478K UMA Zalloc Pigs: NAME SIZE LIMIT COUNT MEM USED VNODE 576, 0, 2167044, 1732868K IFSINODE 584, 0, 2156921, 1731288K VM OBJECT 272, 0, 2225166, 883916K lki_lin_ent 224, 0, 2115660, 626924K stat_cache 192, 0, 1897270, 548120K mbuf_jumbo_p 4096, 0, 41027, 385152K lki_ref_ent 128, 0, 2123131, 317108K RADIX NODE 144, 0, 1070740, 301116K lkc_gen_ent 64, 0, 3619684, 299996K UMA Slabs 0 80, 0, 3034177, 242764K ifm_attr_cac 80, 0, 2135049, 230628K 256 Bucket 2048, 0, 48259, 224540K BUF TRIE 144, 0, 337738, 217204K lkc_lin_idds 80, 0, 1694513, 182992K lkc_ref_idds 72, 0, 1694878, 162560K Top zones: 8087176K Malloc zones: 16001068K Other zones: 1365976K UMA total: 25454220K
Vnode Recycler er muligvis allerede aktiveret på klyngen, men der kan fortsat være problemer med manglende hukommelse. Se følgende artikel.
Cause
Genbrug af Vnode kan sakke bagud og ikke frigøre hukommelse hurtigt nok til at være på forkant med de stigende hukommelseskrav.
Resolution
Der er implementeret kodeforbedringer i følgende OneFS-versioner:
- OneFS 9.2.1.15
- OneFS 9.4.0.17
- OneDS 9.5.0.7
Onefs-versioner udgivet efter ovenstående bemærkede, at versioner også indeholder de samme kodeforbedringer.
Affected Products
Isilon, PowerScale OneFSArticle Properties
Article Number: 000221837
Article Type: Solution
Last Modified: 10 May 2024
Version: 2
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