PowerScale：日誌 BTL 排出導致的記憶體不足問題
Summary: 節點可能遇到記憶體不足 （OOM） 相關問題，導致節點錯誤、效能低下、無回應或逾時。
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Symptoms
節點可能會發生錯誤並重新開機，並出現類似以下的錯誤：
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 --------------------------------------------------
記錄包含大量 OOM 訊息，指出記憶體不足的情況：
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
叢集上的 Vnode 回收程式可能已啟用，但記憶體不足的問題可能仍然存在。請參閱下列文章。
Isilon：PowerScale：OneFS 8.2 及更新版本：允許在緩存已滿時為新 vnode 放棄可用 vnode。
Cause
Vnode 回收可能會落後，無法以足夠快的速度釋放記憶體以保持領先於不斷增長的記憶體需求。
Resolution
程式碼改善已在下列 OneFS 版本中實作：
- OneFS 9.2.1.15
- OneFS 9.4.0.17
- OneDS 9.5.0.7
在上述版本之後發佈的 Onefs 版本指出，這些版本也包含相同的程式碼改善。
Affected Products
Isilon, PowerScale OneFSArticle Properties
Article Number: 000221837
Article Type: Solution
Last Modified: 10 May 2024
Version: 2
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