Details
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Bug
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Status: Open (View Workflow)
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Major
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Resolution: Unresolved
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10.5, 10.6, 10.11, 11.4
Description
The test innodb.innodb_buffer_pool_resize crashes rather often due to various reasons, partly related to the adaptive hash index:
innodb.innodb_buffer_pool_resize w40 [ fail ]
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Test ended at 2024-11-07 23:41:31
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CURRENT_TEST: innodb.innodb_buffer_pool_resize
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mysqltest: At line 53: query 'select count(val) from t1' failed: <Unknown> (2013): Lost connection to server during query
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…
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2024-11-07 23:41:28 0 [Note] InnoDB: withdrew 67 blocks from free list. Tried to relocate 1459 pages (1949/1949)
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2024-11-07 23:41:28 0 [Note] InnoDB: withdrawn target: 1949 blocks
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2024-11-07 23:41:28 0 [Note] InnoDB: Latching whole of buffer pool.
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2024-11-07 23:41:28 0 [Note] InnoDB: buffer pool resizing with chunks 2 to 1.
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2024-11-07 23:41:28 0 [Note] InnoDB: 1 chunks (1949 blocks) were freed.
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2024-11-07 23:41:28 0 [Note] InnoDB: Completed to resize buffer pool from 16777216 to 8388608.
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2024-11-07 23:41:28 0 [Note] InnoDB: Re-enabled adaptive hash index.
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2024-11-07 23:41:28 0 [Note] InnoDB: Completed resizing buffer pool at 241107 23:41:28.
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2024-11-07 23:41:30 0x7fe7137ff700 InnoDB: Assertion failure in file /home/buildbot/amd64-debian-11-msan-clang-16/build/storage/innobase/btr/btr0sea.cc line 1010
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InnoDB: Failing assertion: offs < chunk->size
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Without looking deeper at this test, I was suspecting that the following might fix this in my MDEV-35049 development branch, but it was not the case:
diff --git a/storage/innobase/btr/btr0sea.cc b/storage/innobase/btr/btr0sea.cc
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index 39e87067a1e..8eee78018c9 100644
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--- a/storage/innobase/btr/btr0sea.cc
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+++ b/storage/innobase/btr/btr0sea.cc
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@@ -387,7 +387,7 @@ void btr_sea::enable(bool resize) noexcept
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if (!resize)
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{
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mysql_mutex_lock(&buf_pool.mutex);
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- bool changed= srv_buf_pool_old_size != srv_buf_pool_size;
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+ bool changed= buf_pool.n_chunks_new != buf_pool.n_chunks;
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mysql_mutex_unlock(&buf_pool.mutex);
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if (changed)
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return; |
The change would seem to align better with the following in buf_pool_t::resize():
mysql_mutex_lock(&mutex);
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ut_ad(n_chunks_new == n_chunks);
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ut_ad(UT_LIST_GET_LEN(withdraw) == 0);
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n_chunks_new = (new_instance_size << srv_page_size_shift)
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/ srv_buf_pool_chunk_unit;
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curr_size = n_chunks_new * chunks->size;
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mysql_mutex_unlock(&mutex);
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I have not been able to reproduce this under rr record. This reproduces rather well under an MSAN debug build, but I see that other types of builds can reproduce it as well, including non-debug builds. Here is one 10.5 failure, crashing somewhere related to ROW_FORMAT=COMPRESSED block relocation:
CURRENT_TEST: innodb.innodb_buffer_pool_resize
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mysqltest: In included file "./include/wait_condition.inc":
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included from /home/jenkins/workspace/Source-Build-Test/src/mysql-test/suite/innodb/t/innodb_buffer_pool_resize.test at line 66:
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At line 54: query 'let $success= `$wait_condition`' failed with wrong errno 2013: 'Lost connection to MySQL server during query', instead of 0...
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…
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2024-10-11 1:31:21 0 [Note] InnoDB: Withdrawing blocks to be shrunken.
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2024-10-11 1:31:21 0 [Note] InnoDB: start to withdraw the last 3764 blocks
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mariadbd: /home/jenkins/workspace/Source-Build-Test/src/storage/innobase/buf/buf0buddy.cc:522: bool buf_buddy_relocate(void*, void*, ulint, bool): Assertion `bpage->id() == page_id' failed.
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Attachments
Issue Links
- relates to
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MDEV-29445 reorganise innodb buffer pool (and remove buffer pool chunks)
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- Stalled
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- Closed
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- In Review
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