mirror of
https://github.com/MariaDB/server.git
synced 2025-01-16 03:52:35 +01:00
b12c14e3b4
When checkpoint age goes beyond the sync flush threshold and buf_flush_sync_lsn is set, page cleaner enters into "furious flush" stage to aggressively flush dirty pages from flush list and pull checkpoint LSN above safe margin. In this stage, page cleaner skips doing LRU flush and eviction. In 10.6, all other threads entirely rely on page cleaner to generate free pages. If free pages get over while page cleaner is busy in "furious flush" stage, a session thread could wait for free page in the middle of a min-transaction(mtr) while holding latches on other pages. It, in turn, can prevent page cleaner to flush such pages preventing checkpoint LSN to move forward creating a deadlock situation. Even otherwise, it could create a stall and hang like situation for large BP with plenty of dirty pages to flush before the stage could finish. Fix: During furious flush, check and evict LRU pages after each flush iteration. |
||
|---|---|---|
| .. | ||
| archive | ||
| atomic | ||
| binlog | ||
| binlog_encryption | ||
| client | ||
| compat | ||
| csv | ||
| encryption | ||
| engines | ||
| federated | ||
| funcs_1 | ||
| funcs_2 | ||
| galera | ||
| galera_3nodes | ||
| galera_3nodes_sr | ||
| galera_sr | ||
| gcol | ||
| handler | ||
| heap | ||
| innodb | ||
| innodb_fts | ||
| innodb_gis | ||
| innodb_i_s | ||
| innodb_zip | ||
| jp | ||
| json | ||
| large_tests | ||
| maria | ||
| mariabackup | ||
| mtr/t | ||
| mtr2 | ||
| multi_source | ||
| optimizer_unfixed_bugs | ||
| parts | ||
| perfschema | ||
| perfschema_stress | ||
| period | ||
| plugins | ||
| roles | ||
| rpl | ||
| s3 | ||
| sql_sequence | ||
| storage_engine | ||
| stress | ||
| sys_vars | ||
| sysschema | ||
| unit | ||
| vcol | ||
| versioning | ||
| wsrep | ||