format timeout with cache stuck, thread stuck in truncate.
http://build.wiredtiger.com:8080/job/wiredtiger-test-format-stress-ppc/18297/consoleFull
The test failure was on the PPC, but reproduces for me on an x86. It's a column-store failure with a large number of worker threads (29) and a relatively small cache (44), but at the failure there's only one thread still running, and it's processing a truncate. All of the other threads have exited from their worker mode.
Thread 9 (Thread 0x7f3e5e7e4700 (LWP 15364)): #0 0x00007f3e75b1a3c7 in _int_malloc () from /lib64/libc.so.6 #1 0x00007f3e75b1db64 in calloc () from /lib64/libc.so.6 #2 0x0000000000452719 in __wt_calloc (session=0x7f3e77304520, number=1, size=160, retp=0x7f3e5e7e0f70) at src/os_common/os_alloc.c:52 #3 0x000000000050279c in __wt_col_modify (session=0x7f3e77304520, cbt=0x7f3e5e7e1040, recno=578343, value=0x0, upd_arg=0x7f3e0c2ec0e0, modify_type=0, exclusive=true) at src/btree/col_modify.c:134 #4 0x00000000004f0feb in __split_multi_inmem (session=0x7f3e77304520, orig=0x7f3e0c33dd10, multi=0x7f3e0c381810, ref=0x7f3e0c182f40) at src/btree/bt_split.c:1506 #5 0x00000000004f2ebd in __wt_split_rewrite (session=0x7f3e77304520, ref=0xf56270, multi=0x7f3e0c381810) at src/btree/bt_split.c:2297 #6 0x0000000000442727 in __evict_page_dirty_update (session=0x7f3e77304520, ref=0xf56270, closing=false) at src/evict/evict_page.c:375 #7 0x0000000000441fc7 in __wt_evict (session=0x7f3e77304520, ref=0xf56270, closing=false) at src/evict/evict_page.c:214 #8 0x000000000044191f in __wt_page_release_evict (session=0x7f3e77304520, ref=0xf56270) at src/evict/evict_page.c:85 #9 0x00000000004df4af in __wt_page_in_func (session=0x7f3e77304520, ref=0xf56270, flags=1024, file=0x5cb080 <__func__.16268> "__wt_col_search", line=195) at src/btree/bt_read.c:731 #10 0x0000000000503cb2 in __wt_page_swap_func (session=0x7f3e77304520, held=0xafc0f8, want=0xf56270, prev_race=false, flags=1024, file=0x5cb080 <__func__.16268> "__wt_col_search", line=195) at ./src/include/btree.i:1751 #11 0x0000000000504895 in __wt_col_search (session=0x7f3e77304520, search_recno=580895, leaf=0x0, cbt=0x7f3e0c0518a0, restore=false) at src/btree/col_srch.c:194 #12 0x00000000005908bb in __cursor_col_search (session=0x7f3e77304520, cbt=0x7f3e0c0518a0, leaf=0x0) at src/btree/bt_cursor.c:370 #13 0x0000000000590fd6 in __wt_btcur_search (cbt=0x7f3e0c0518a0) at src/btree/bt_cursor.c:530 #14 0x0000000000593bc9 in __cursor_truncate (session=0x7f3e77304520, start=0x7f3e0c0518a0, stop=0x7f3e0c05c2b0, rmfunc=0x590a10 <__cursor_col_modify>) at src/btree/bt_cursor.c:1681 #15 0x0000000000593f7b in __wt_btcur_range_truncate (start=0x7f3e0c0518a0, stop=0x7f3e0c05c2b0) at src/btree/bt_cursor.c:1798 #16 0x000000000057b4d4 in __wt_schema_range_truncate (session=0x7f3e77304520, start=0x7f3e0c0518a0, stop=0x7f3e0c05c2b0) at src/schema/schema_truncate.c:145 #17 0x000000000048c09a in __wt_session_range_truncate (session=0x7f3e77304520, uri=0x0, start=0x7f3e0c0518a0, stop=0x7f3e0c05c2b0) at src/session/session_api.c:1433 #18 0x000000000048c9c9 in __session_truncate (wt_session=0x7f3e77304520, uri=0x0, start=0x7f3e0c0518a0, stop=0x7f3e0c05c2b0, config=0x0) at src/session/session_api.c:1507 #19 0x000000000040b4a5 in col_truncate (tinfo=0xf576b0, cursor=0x7f3e0c0518a0) at ops.c:1761 #20 0x0000000000409210 in ops (arg=0xf576b0) at ops.c:1031 #21 0x00007f3e76721e25 in start_thread () from /lib64/libpthread.so.0 #22 0x00007f3e75b9534d in clone () from /lib64/libc.so.6
- causes
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WT-4277 Make truncate in column stores more efficient
- Closed