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Type: Bug
Resolution: Fixed
Priority: Major - P3
Fix Version/s: 4.3.1, WT10.0.0, 4.2.2
Affects Version/s: None
Component/s: None
Labels:
- CI-blocker
- format-cache-stuck

Sprint:
Storage Engines 2019-09-09, Storage Engines 2019-09-23, Storage Engines 2019-10-07
Story Points:
8

We encountered a cache stuck with clean page failure in the test/format stress sanitiser job. Please note timestamp was disabled in the test. We had ~~WT-4608~~ and ~~WT-3694~~ created to track LSM cache stuck clean failures. This case is likely the 1st time we see the btree cache stuck with clean pages failure.

http://build.wiredtiger.com:8080/job/wiredtiger-test-format-stress-sanitizer/23878/

[1554809849:456697][2330:0x7fb095f0b700], t, eviction-server: __evict_server, 451: Cache stuck for too long, giving up: Connection timed out
t: process 2330
0x7fb09f590488:=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=
0x7fb09f590488:transaction state dump
0x7fb09f590488:current ID: 4647
0x7fb09f590488:last running ID: 4647
0x7fb09f590488:metadata_pinned ID: 4370
0x7fb09f590488:oldest ID: 4370
0x7fb09f590488:commit timestamp: (0,0)
0x7fb09f590488:oldest timestamp: (0,0)
0x7fb09f590488:pinned timestamp: (0,0)
0x7fb09f590488:stable timestamp: (0,0)
0x7fb09f590488:has_commit_timestamp: no
0x7fb09f590488:has_oldest_timestamp: no
0x7fb09f590488:has_pinned_timestamp: no
0x7fb09f590488:has_stable_timestamp: no
0x7fb09f590488:oldest_is_pinned: no
0x7fb09f590488:stable_is_pinned: no
0x7fb09f590488:checkpoint running: no
0x7fb09f590488:checkpoint generation: 18
0x7fb09f590488:checkpoint pinned ID: 0
0x7fb09f590488:checkpoint txn ID: 0
0x7fb09f590488:oldest named snapshot ID: 0
0x7fb09f590488:session count: 36
0x7fb09f590488:Transaction state of active sessions:
0x7fb09f590488:ID: 0, pinned ID: 4491, metadata pinned ID: 0, name: WT_CURSOR.prev
0x7fb09f590488:mod count: 0, snap min: 4491, snap max: 4495, commit_timestamp: (0,0), durable_timestamp: (0,0), first_commit_timestamp: (0,0), read_timestamp: (0,0), flags: 0x00004008, isolation: WT_ISO_SNAPSHOT
0x7fb09f590488:ID: 0, pinned ID: 4491, metadata pinned ID: 0, name: WT_CURSOR.prev
0x7fb09f590488:mod count: 0, snap min: 4491, snap max: 4503, commit_timestamp: (0,0), durable_timestamp: (0,0), first_commit_timestamp: (0,0), read_timestamp: (0,0), flags: 0x00000008, isolation: WT_ISO_READ_COMMITTED
0x7fb09f590488:ID: 0, pinned ID: 4491, metadata pinned ID: 0, name: WT_CURSOR.next
0x7fb09f590488:mod count: 0, snap min: 4491, snap max: 4504, commit_timestamp: (0,0), durable_timestamp: (0,0), first_commit_timestamp: (0,0), read_timestamp: (0,0), flags: 0x00000008, isolation: WT_ISO_READ_COMMITTED
0x7fb09f590488:ID: 0, pinned ID: 4370, metadata pinned ID: 0, name: WT_CURSOR.search
0x7fb09f590488:mod count: 0, snap min: 4370, snap max: 4375, commit_timestamp: (0,0), durable_timestamp: (0,0), first_commit_timestamp: (0,0), read_timestamp: (0,0), flags: 0x00004008, isolation: WT_ISO_SNAPSHOT
0x7fb09f590488:ID: 0, pinned ID: 4491, metadata pinned ID: 0, name: WT_CURSOR.next
0x7fb09f590488:mod count: 0, snap min: 4491, snap max: 4503, commit_timestamp: (0,0), durable_timestamp: (0,0), first_commit_timestamp: (0,0), read_timestamp: (0,0), flags: 0x00000008, isolation: WT_ISO_READ_COMMITTED
0x7fb09f590488:ID: 0, pinned ID: 4491, metadata pinned ID: 0, name: WT_CURSOR.next
0x7fb09f590488:mod count: 0, snap min: 4491, snap max: 4503, commit_timestamp: (0,0), durable_timestamp: (0,0), first_commit_timestamp: (0,0), read_timestamp: (0,0), flags: 0x00000008, isolation: WT_ISO_READ_COMMITTED
0x7fb09f590488:=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=
0x7fb09f590488:cache dump
0x7fb09f590488:cache full: no
0x7fb09f590488:cache clean check: yes (97.548%)
0x7fb09f590488:cache dirty check: no (0.091%)
0x7fb09f590488:file:wt.wt(checkpoint=WiredTigerCheckpoint.1):
0x7fb09f590488:internal: 3 pages, 0MB, 3/0 clean/dirty pages, 0/0 clean/dirty MB, 0MB max page, 0MB max dirty page
0x7fb09f590488:leaf: 1 pages, 0MB, 1/0 clean/dirty pages, 0/0 clean/dirty MB, 0MB max page, 0MB max dirty page
0x7fb09f590488:file:wt.wt(<live>):
0x7fb09f590488:internal: 64 pages, 24MB, 64/0 clean/dirty pages, 24/0 clean/dirty MB, 0MB max page, 0MB max dirty page
0x7fb09f590488:leaf: 4 pages, 0MB, 4/0 clean/dirty pages, 0/0 clean/dirty MB, 0MB max page, 0MB max dirty page
0x7fb09f590488:file:WiredTigerLAS.wt(<live>):
0x7fb09f590488:internal: 1 pages, 0MB, 0/1 clean/dirty pages, 0/0 clean/dirty MB, 0MB max page, 0MB max dirty page
0x7fb09f590488:leaf: 0 pages
0x7fb09f590488:file:WiredTiger.wt(<live>):
0x7fb09f590488:internal: 1 pages, 0MB, 1/0 clean/dirty pages, 0/0 clean/dirty MB, 0MB max page, 0MB max dirty page
0x7fb09f590488:leaf: 1 pages, 0MB, 0/1 clean/dirty pages, 0/0 clean/dirty MB, 0MB max page, 0MB max dirty page
0x7fb09f590488:cache dump: total found: 27MB vs tracked inuse 27MB
0x7fb09f590488:total dirty bytes: 0MB
[1554809849:462413][2330:0x7fb095f0b700], t, eviction-server: __wt_evict_thread_run, 321: cache eviction thread error: Connection timed out
[1554809849:462425][2330:0x7fb095f0b700], t, eviction-server: __wt_panic, 520: the process must exit and restart: WT_PANIC: WiredTiger library panic
[1554809849:462430][2330:0x7fb095f0b700], t, eviction-server: __wt_abort, 30: aborting WiredTiger library
/tmp/jenkins5083747742990501913.sh: line 24:  2330 Aborted                 nice ./t -1 -c ../../../test/format/CONFIG.stress
+ cleanup
+ status=134

The configuration:

############################################
#  RUN PARAMETERS
############################################
abort=0
alter=0
auto_throttle=1
backups=1
bitcnt=8
bloom=1
bloom_bit_count=4
bloom_hash_count=32
bloom_oldest=0
cache=28
cache_minimum=20
checkpoints=on
checkpoint_log_size=44
checkpoint_wait=100
checksum=uncompressed
chunk_size=4
compaction=0
compression=none
data_extend=0
data_source=table
delete_pct=37
dictionary=0
direct_io=0
encryption=rotn-7
evict_max=0
file_type=row-store
firstfit=0
huffman_key=0
huffman_value=0
independent_thread_rng=1
in_memory=0
insert_pct=0
internal_key_truncation=1
internal_page_max=16
isolation=snapshot
key_gap=16
key_max=79
key_min=18
leaf_page_max=9
leak_memory=0
logging=1
logging_archive=1
logging_compression=zlib
logging_file_max=416851
logging_prealloc=1
long_running_txn=0
lsm_worker_threads=4
memory_page_max=1
merge_max=10
mmap=1
modify_pct=17
ops=0
prefix_compression=1
prefix_compression_min=7
prepare=0
quiet=1
read_pct=45
rebalance=1
repeat_data_pct=40
reverse=0
rows=1000000
runs=1
salvage=1
split_pct=75
statistics=0
statistics_server=1
threads=14
timer=4
timing_stress_aggressive_sweep=0
timing_stress_checkpoint=0
timing_stress_lookaside_sweep=0
timing_stress_split_1=0
timing_stress_split_2=0
timing_stress_split_3=0
timing_stress_split_4=0
timing_stress_split_5=0
timing_stress_split_6=0
timing_stress_split_7=0
timing_stress_split_8=0
transaction_timestamps=0
transaction-frequency=94
truncate=1
value_max=1148
value_min=17
verify=1
wiredtiger_config=
write_pct=1
############################################

causes

WT-5082 Application threads are tasked with eviction even when pinning the oldest transaction ID

Closed

WT-5149 Clear the debugging field value so it cannot get stale

Closed

depends on

WT-4949 Spike: Cache stuck with clean pages with timestamp disabled format test

Closed

is related to

WT-5043 Add debugging to aid in test/format hang

Closed

related to

WT-5142 Don't create huge root pages when rebalancing or bulk-loading objects with overflow keys

Closed

WT-5330 Read-only transactions are being rolled back in MongoDB

Closed

WT-5266 application threads are tasked with eviction even when pinning the oldest transaction ID

Closed

(2 related to)

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