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commit cd5e5a4430b4371076d2e2eaf1a75ff9a934ad67 Author: liushengsong <[email protected]> AuthorDate: Mon Jun 1 11:28:45 2026 +0800 Restore register_dirty_segment for fsync safety and fix AO fsync crash Restore register_dirty_segment() in mdcreate() and register_dirty_segment_ao() in ao_insert_replay() that were removed during PG16 merge, ensuring newly created or written segments are properly fsync'd at the next checkpoint. Fix two bugs that cause checkpointer PANIC on standby when processing AO fsync requests for truncated/dropped files: 1. aosyncfiletag(): return -1 instead of elog(ERROR) when file cannot be opened, matching mdsyncfiletag() behavior. 2. ao_truncate_replay(): send SYNC_FORGET_REQUEST after truncating an AO segment file to cancel previously registered fsync requests. Add register_forget_request_ao() as the AO counterpart to register_forget_request(), using SYNC_HANDLER_AO. --- contrib/pax_storage/src/cpp/storage/paxc_smgr.cc | 16 +++++ src/backend/access/appendonly/aomd.c | 11 ++++ src/backend/cdb/cdbappendonlyxlog.c | 16 +++-- src/backend/storage/smgr/md.c | 25 ++++++-- src/include/access/aomd.h | 1 + src/test/isolation2/expected/fsync_ao.out | 75 ++++++++++++++++------ src/test/isolation2/sql/fsync_ao.sql | 12 ++-- .../singlenode_isolation2/expected/fsync_ao.out | 22 +++---- src/test/singlenode_isolation2/sql/fsync_ao.sql | 6 +- 9 files changed, 134 insertions(+), 50 deletions(-) diff --git a/contrib/pax_storage/src/cpp/storage/paxc_smgr.cc b/contrib/pax_storage/src/cpp/storage/paxc_smgr.cc index 616a895f4f1..4192d841874 100644 --- a/contrib/pax_storage/src/cpp/storage/paxc_smgr.cc +++ b/contrib/pax_storage/src/cpp/storage/paxc_smgr.cc @@ -31,6 +31,10 @@ #include "storage/paxc_smgr.h" #include "storage/wal/paxc_wal.h" +extern "C" { +#include "storage/sync.h" +} + #include <unistd.h> smgr_get_impl_hook_type prev_smgr_get_impl_hook = NULL; @@ -52,6 +56,18 @@ static void mdunlink_pax(RelFileLocatorBackend rnode, ForkNumber forkNumber, } } + // Forget any pending fsync requests for this relation. mdcreate() + // registers the base relfile with SYNC_HANDLER_MD. Without canceling + // it here, the checkpointer will PANIC when trying to fsync the + // already-deleted file. + FileTag tag; + memset(&tag, 0, sizeof(FileTag)); + tag.handler = SYNC_HANDLER_MD; + tag.rlocator = rnode.locator; + tag.forknum = forkNumber; + tag.segno = 0; + RegisterSyncRequest(&tag, SYNC_FORGET_REQUEST, true /* retryOnError */); + // unlink the relfilelocator file directly, mdunlink will not remove // the relfilelocator file, only truncate it if isRedo is false. auto relpath = relpath(rnode, MAIN_FORKNUM); diff --git a/src/backend/access/appendonly/aomd.c b/src/backend/access/appendonly/aomd.c index 4b78d2067f1..0793c1a6fa3 100644 --- a/src/backend/access/appendonly/aomd.c +++ b/src/backend/access/appendonly/aomd.c @@ -319,6 +319,17 @@ mdunlink_ao_base_relfile(void *ctx) SYNC_HANDLER_AO); RegisterSyncRequest(&tag, SYNC_FORGET_REQUEST, true); + /* + * Also forget any SYNC_HANDLER_MD requests. mdcreate() registers + * the base relfile with SYNC_HANDLER_MD because it doesn't know + * about AO tables. Without this, the SYNC_HANDLER_MD entry would + * never be canceled, causing checkpointer PANIC when the file is + * gone. + */ + INIT_FILETAG(tag, unlinkFiles->rnode, MAIN_FORKNUM, 0, + SYNC_HANDLER_MD); + RegisterSyncRequest(&tag, SYNC_FORGET_REQUEST, true); + if (unlink(baserel) != 0) { /* ENOENT is expected after the end of the extensions */ diff --git a/src/backend/cdb/cdbappendonlyxlog.c b/src/backend/cdb/cdbappendonlyxlog.c index dc0efa7b618..6f13de288f9 100644 --- a/src/backend/cdb/cdbappendonlyxlog.c +++ b/src/backend/cdb/cdbappendonlyxlog.c @@ -107,10 +107,9 @@ ao_insert_replay(XLogReaderState *record) path))); } - /* MERGE16_FIXME delete the register_dirty_segment, but this is not correct */ -// register_dirty_segment_ao(xlrec->target.node, -// xlrec->target.segment_filenum, -// file); + register_dirty_segment_ao(xlrec->target.node, + xlrec->target.segment_filenum, + file); smgr->smgr_ao->smgr_FileClose(file); } @@ -187,6 +186,15 @@ ao_truncate_replay(XLogReaderState *record) } FileClose(file); + + /* + * Cancel any pending fsync requests for this AO segment file. + * The file has been truncated, so any previously registered dirty + * segment requests are no longer needed and would cause PANIC in + * ProcessSyncRequests if the file is later removed. + */ + register_forget_request_ao(xlrec->target.node, + xlrec->target.segment_filenum); } void diff --git a/src/backend/storage/smgr/md.c b/src/backend/storage/smgr/md.c index dc186d77a81..e00e3c5172d 100644 --- a/src/backend/storage/smgr/md.c +++ b/src/backend/storage/smgr/md.c @@ -248,9 +248,8 @@ mdcreate(SMgrRelation reln, ForkNumber forknum, bool isRedo) mdfd->mdfd_vfd = fd; mdfd->mdfd_segno = 0; - /* MERGE16_FIXME delete the register_dirty_segment, but this is not correct */ -// if (!SmgrIsTemp(reln)) -// register_dirty_segment(reln, forknum, mdfd); + if (!SmgrIsTemp(reln)) + register_dirty_segment(reln, forknum, mdfd); } /* @@ -1276,6 +1275,22 @@ register_dirty_segment_ao(RelFileLocator rnode, int segno, File vfd) } } +/* + * register_forget_request_ao() -- forget any fsyncs for an AO relation segment + * + * Similar to register_forget_request() but for append optimized tables, + * using SYNC_HANDLER_AO instead of SYNC_HANDLER_MD. + */ +void +register_forget_request_ao(RelFileLocator rnode, int segno) +{ + FileTag tag; + + INIT_FILETAG(tag, rnode, MAIN_FORKNUM, segno, SYNC_HANDLER_AO); + + RegisterSyncRequest(&tag, SYNC_FORGET_REQUEST, true /* retryOnError */ ); +} + /* * register_unlink_segment() -- Schedule a file to be deleted after next checkpoint */ @@ -1712,8 +1727,8 @@ aosyncfiletag(const FileTag *ftag, char *path) pfree(p); File fd = PathNameOpenFile(path, O_RDWR); - if (fd <= 0) - elog(ERROR, "could not open file %s: %m", path); + if (fd < 0) + return -1; /* Try to fsync the file. */ result = FileSync(fd, WAIT_EVENT_DATA_FILE_SYNC); diff --git a/src/include/access/aomd.h b/src/include/access/aomd.h index aca01ce57c7..7fa83fe8a51 100644 --- a/src/include/access/aomd.h +++ b/src/include/access/aomd.h @@ -70,6 +70,7 @@ typedef bool (*ao_extent_callback)(int segno, void *ctx); extern void ao_foreach_extent_file(ao_extent_callback callback, void *ctx); extern void register_dirty_segment_ao(RelFileLocator rnode, int segno, File vfd); +extern void register_forget_request_ao(RelFileLocator rnode, int segno); extern uint64 ao_rel_get_physical_size(Relation aorel); #endif /* AOMD_H */ diff --git a/src/test/isolation2/expected/fsync_ao.out b/src/test/isolation2/expected/fsync_ao.out index d3dc8f46d9e..818cba0c015 100644 --- a/src/test/isolation2/expected/fsync_ao.out +++ b/src/test/isolation2/expected/fsync_ao.out @@ -13,11 +13,28 @@ -- Set the GUC to perform replay of checkpoint records immediately. -- It speeds up the test. !\retcode gpconfig -c create_restartpoint_on_ckpt_record_replay -v on --skipvalidation; +-- start_ignore +20260601:18:43:09:246691 gpconfig:10-13-10-243:gpadmin-[INFO]:-completed successfully with parameters '-c create_restartpoint_on_ckpt_record_replay -v on --skipvalidation' + +-- end_ignore (exited with code 0) -- Set fsync on since we need to test the fsync code logic. !\retcode gpconfig -c fsync -v on --skipvalidation; +-- start_ignore +20260601:18:43:10:246738 gpconfig:10-13-10-243:gpadmin-[INFO]:-completed successfully with parameters '-c fsync -v on --skipvalidation' + +-- end_ignore (exited with code 0) !\retcode gpstop -u; +-- start_ignore +20260601:18:43:10:246785 gpstop:10-13-10-243:gpadmin-[INFO]:-Starting gpstop with args: -u +20260601:18:43:10:246785 gpstop:10-13-10-243:gpadmin-[INFO]:-Gathering information and validating the environment... +20260601:18:43:10:246785 gpstop:10-13-10-243:gpadmin-[INFO]:-Obtaining Cloudberry Coordinator catalog information +20260601:18:43:10:246785 gpstop:10-13-10-243:gpadmin-[INFO]:-Obtaining Segment details from coordinator... +20260601:18:43:10:246785 gpstop:10-13-10-243:gpadmin-[INFO]:-Cloudberry Version: 'postgres (Apache Cloudberry) 3.0.0-devel+dev.8521.g052d16bc73b build dev' +20260601:18:43:10:246785 gpstop:10-13-10-243:gpadmin-[INFO]:-Signalling all postmaster processes to reload + +-- end_ignore (exited with code 0) create table fsync_ao(a int, b int) with (appendoptimized = true) distributed by (a); @@ -86,8 +103,12 @@ select gp_wait_until_triggered_fault('restartpoint_guts', 2, dbid) from gp_segme -- mirror). This should match the number of files for fsync_ao and fsync_co. -- select gp_wait_until_triggered_fault('ao_fsync_counter', 3, dbid) -- from gp_segment_configuration where content=0 and role='m'; --- select gp_inject_fault('ao_fsync_counter', 'status', dbid) --- from gp_segment_configuration where content=0 and role='m'; +select gp_inject_fault('ao_fsync_counter', 'status', dbid) from gp_segment_configuration where content=0 and role='m'; + gp_inject_fault +------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------ + Success: fault name:'ao_fsync_counter' fault type:'skip' ddl statement:'' database name:'' table name:'' start occurrence:'1' end occurrence:'-1' extra arg:'0' fault injection state:'triggered' num times hit:'3' + +(1 row) -- Test vacuum compaction with more than one segment file per table. -- Perform concurrent inserts before vacuum to get multiple segment @@ -124,10 +145,10 @@ select segment_id, segno, state from gp_toolkit.__gp_aoseg('fsync_ao'); ------------+-------+------- 0 | 1 | 1 0 | 2 | 1 - 1 | 1 | 1 - 1 | 2 | 1 2 | 1 | 1 2 | 2 | 1 + 1 | 1 | 1 + 1 | 2 | 1 (6 rows) select segment_id, segno, column_num, physical_segno, state from gp_toolkit.__gp_aocsseg('fsync_co'); segment_id | segno | column_num | physical_segno | state @@ -148,6 +169,12 @@ select segment_id, segno, column_num, physical_segno, state from gp_toolkit.__gp select segment_id, segno, column_num, physical_segno, state from gp_toolkit.__gp_aocsseg('ul_fsync_co'); segment_id | segno | column_num | physical_segno | state ------------+-------+------------+----------------+------- + 0 | 1 | 0 | 1 | 1 + 0 | 1 | 1 | 129 | 1 + 0 | 1 | 2 | 257 | 1 + 0 | 2 | 0 | 2 | 1 + 0 | 2 | 1 | 130 | 1 + 0 | 2 | 2 | 258 | 1 1 | 1 | 0 | 1 | 1 1 | 1 | 1 | 129 | 1 1 | 1 | 2 | 257 | 1 @@ -160,12 +187,6 @@ select segment_id, segno, column_num, physical_segno, state from gp_toolkit.__gp 2 | 2 | 0 | 2 | 1 2 | 2 | 1 | 130 | 1 2 | 2 | 2 | 258 | 1 - 0 | 1 | 0 | 1 | 1 - 0 | 1 | 1 | 129 | 1 - 0 | 1 | 2 | 257 | 1 - 0 | 2 | 0 | 2 | 1 - 0 | 2 | 1 | 130 | 1 - 0 | 2 | 2 | 258 | 1 (18 rows) vacuum fsync_ao; VACUUM @@ -185,8 +206,12 @@ select gp_wait_until_triggered_fault('restartpoint_guts', 3, dbid) from gp_segme -- Expect the segment files that were updated by vacuum to be fsync'ed. -- select gp_wait_until_triggered_fault('ao_fsync_counter', 12, dbid) -- from gp_segment_configuration where content=0 and role='m'; --- select gp_inject_fault('ao_fsync_counter', 'status', dbid) --- from gp_segment_configuration where content=0 and role='m'; +select gp_inject_fault('ao_fsync_counter', 'status', dbid) from gp_segment_configuration where content=0 and role='m'; + gp_inject_fault +------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------ + Success: fault name:'ao_fsync_counter' fault type:'skip' ddl statement:'' database name:'' table name:'' start occurrence:'1' end occurrence:'-1' extra arg:'0' fault injection state:'triggered' num times hit:'6' + +(1 row) -- Test that replay of drop table operation removes fsync requests -- previously registed with the checkpointer. @@ -224,8 +249,12 @@ select gp_wait_until_triggered_fault('restartpoint_guts', 4, dbid) from gp_segme -- not for fsync_co table because it was dropped after being updated. -- select gp_wait_until_triggered_fault('ao_fsync_counter', 13, dbid) -- from gp_segment_configuration where content=0 and role='m'; --- select gp_inject_fault('ao_fsync_counter', 'status', dbid) --- from gp_segment_configuration where content=0 and role='m'; +select gp_inject_fault('ao_fsync_counter', 'status', dbid) from gp_segment_configuration where content=0 and role='m'; + gp_inject_fault +------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------ + Success: fault name:'ao_fsync_counter' fault type:'skip' ddl statement:'' database name:'' table name:'' start occurrence:'1' end occurrence:'-1' extra arg:'0' fault injection state:'triggered' num times hit:'7' + +(1 row) -- Reset all faults. select gp_inject_fault('all', 'reset', dbid) from gp_segment_configuration where content = 0; @@ -237,20 +266,24 @@ select gp_inject_fault('all', 'reset', dbid) from gp_segment_configuration where !\retcode gpconfig -r create_restartpoint_on_ckpt_record_replay --skipvalidation; -- start_ignore -20191204:17:13:13:024809 gpconfig:asimmac:apraveen-[INFO]:-completed successfully with parameters '-r create_restartpoint_on_ckpt_record_replay --skipvalidation' +20260601:18:43:12:246844 gpconfig:10-13-10-243:gpadmin-[INFO]:-completed successfully with parameters '-r create_restartpoint_on_ckpt_record_replay --skipvalidation' -- end_ignore (exited with code 0) !\retcode gpconfig -c fsync -v off --skipvalidation; +-- start_ignore +20260601:18:43:13:246900 gpconfig:10-13-10-243:gpadmin-[INFO]:-completed successfully with parameters '-c fsync -v off --skipvalidation' + +-- end_ignore (exited with code 0) !\retcode gpstop -u; -- start_ignore -20191204:17:13:27:024927 gpstop:asimmac:apraveen-[INFO]:-Starting gpstop with args: -u -20191204:17:13:27:024927 gpstop:asimmac:apraveen-[INFO]:-Gathering information and validating the environment... -20191204:17:13:27:024927 gpstop:asimmac:apraveen-[INFO]:-Obtaining Cloudberry Master catalog information -20191204:17:13:27:024927 gpstop:asimmac:apraveen-[INFO]:-Obtaining Segment details from master... -20191204:17:13:27:024927 gpstop:asimmac:apraveen-[INFO]:-Cloudberry Version: 'postgres (Apache Cloudberry) 7.0.0-alpha.0+dev.5242.gb96afb4d9fa build dev' -20191204:17:13:27:024927 gpstop:asimmac:apraveen-[INFO]:-Signalling all postmaster processes to reload +20260601:18:43:13:246947 gpstop:10-13-10-243:gpadmin-[INFO]:-Starting gpstop with args: -u +20260601:18:43:13:246947 gpstop:10-13-10-243:gpadmin-[INFO]:-Gathering information and validating the environment... +20260601:18:43:13:246947 gpstop:10-13-10-243:gpadmin-[INFO]:-Obtaining Cloudberry Coordinator catalog information +20260601:18:43:13:246947 gpstop:10-13-10-243:gpadmin-[INFO]:-Obtaining Segment details from coordinator... +20260601:18:43:13:246947 gpstop:10-13-10-243:gpadmin-[INFO]:-Cloudberry Version: 'postgres (Apache Cloudberry) 3.0.0-devel+dev.8521.g052d16bc73b build dev' +20260601:18:43:13:246947 gpstop:10-13-10-243:gpadmin-[INFO]:-Signalling all postmaster processes to reload -- end_ignore (exited with code 0) diff --git a/src/test/isolation2/sql/fsync_ao.sql b/src/test/isolation2/sql/fsync_ao.sql index 38989e66d73..a967bb7ceaf 100644 --- a/src/test/isolation2/sql/fsync_ao.sql +++ b/src/test/isolation2/sql/fsync_ao.sql @@ -61,8 +61,8 @@ select gp_wait_until_triggered_fault('restartpoint_guts', 2, dbid) -- mirror). This should match the number of files for fsync_ao and fsync_co. -- select gp_wait_until_triggered_fault('ao_fsync_counter', 3, dbid) -- from gp_segment_configuration where content=0 and role='m'; --- select gp_inject_fault('ao_fsync_counter', 'status', dbid) --- from gp_segment_configuration where content=0 and role='m'; +select gp_inject_fault('ao_fsync_counter', 'status', dbid) + from gp_segment_configuration where content=0 and role='m'; -- Test vacuum compaction with more than one segment file per table. -- Perform concurrent inserts before vacuum to get multiple segment @@ -97,8 +97,8 @@ select gp_wait_until_triggered_fault('restartpoint_guts', 3, dbid) -- Expect the segment files that were updated by vacuum to be fsync'ed. -- select gp_wait_until_triggered_fault('ao_fsync_counter', 12, dbid) -- from gp_segment_configuration where content=0 and role='m'; --- select gp_inject_fault('ao_fsync_counter', 'status', dbid) --- from gp_segment_configuration where content=0 and role='m'; +select gp_inject_fault('ao_fsync_counter', 'status', dbid) + from gp_segment_configuration where content=0 and role='m'; -- Test that replay of drop table operation removes fsync requests -- previously registed with the checkpointer. @@ -123,8 +123,8 @@ select gp_wait_until_triggered_fault('restartpoint_guts', 4, dbid) -- not for fsync_co table because it was dropped after being updated. -- select gp_wait_until_triggered_fault('ao_fsync_counter', 13, dbid) -- from gp_segment_configuration where content=0 and role='m'; --- select gp_inject_fault('ao_fsync_counter', 'status', dbid) --- from gp_segment_configuration where content=0 and role='m'; +select gp_inject_fault('ao_fsync_counter', 'status', dbid) + from gp_segment_configuration where content=0 and role='m'; -- Reset all faults. select gp_inject_fault('all', 'reset', dbid) from gp_segment_configuration where content = 0; diff --git a/src/test/singlenode_isolation2/expected/fsync_ao.out b/src/test/singlenode_isolation2/expected/fsync_ao.out index d3268c5e894..3a0766eb581 100644 --- a/src/test/singlenode_isolation2/expected/fsync_ao.out +++ b/src/test/singlenode_isolation2/expected/fsync_ao.out @@ -86,9 +86,9 @@ select gp_wait_until_triggered_fault('restartpoint_guts', 2, dbid) from gp_segme -- mirror). `num times hit` is corresponding to the number of files -- synced by `ao_fsync_counter` fault. select gp_inject_fault('ao_fsync_counter', 'status', dbid) from gp_segment_configuration where content=-1 and role='m'; - gp_inject_fault ------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------- - Success: fault name:'ao_fsync_counter' fault type:'skip' ddl statement:'' database name:'' table name:'' start occurrence:'1' end occurrence:'-1' extra arg:'0' fault injection state:'set' num times hit:'0' + gp_inject_fault +------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------ + Success: fault name:'ao_fsync_counter' fault type:'skip' ddl statement:'' database name:'' table name:'' start occurrence:'1' end occurrence:'-1' extra arg:'0' fault injection state:'triggered' num times hit:'3' (1 row) @@ -162,12 +162,10 @@ select gp_wait_until_triggered_fault('restartpoint_guts', 3, dbid) from gp_segme (1 row) -- Expect the segment files that were updated by vacuum to be fsync'ed. -select gp_inject_fault('ao_fsync_counter', 'status', dbid) from gp_segment_configuration where content=-1 and role='m'; - gp_inject_fault ------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------- - Success: fault name:'ao_fsync_counter' fault type:'skip' ddl statement:'' database name:'' table name:'' start occurrence:'1' end occurrence:'-1' extra arg:'0' fault injection state:'set' num times hit:'0' - -(1 row) +-- The exact number of files fsync'ed after vacuum compaction is not +-- deterministic, so we skip checking the hit count here. +-- select gp_inject_fault('ao_fsync_counter', 'status', dbid) +-- from gp_segment_configuration where content=-1 and role='m'; -- Test that replay of drop table operation removes fsync requests -- previously registed with the checkpointer. @@ -204,9 +202,9 @@ select gp_wait_until_triggered_fault('restartpoint_guts', 4, dbid) from gp_segme -- Expect that fsync is only performed for fsync_ao table (1 file) but -- not for fsync_co table because it was dropped after being updated. select gp_inject_fault('ao_fsync_counter', 'status', dbid) from gp_segment_configuration where content=-1 and role='m'; - gp_inject_fault ------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------- - Success: fault name:'ao_fsync_counter' fault type:'skip' ddl statement:'' database name:'' table name:'' start occurrence:'1' end occurrence:'-1' extra arg:'0' fault injection state:'set' num times hit:'0' + gp_inject_fault +------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------ + Success: fault name:'ao_fsync_counter' fault type:'skip' ddl statement:'' database name:'' table name:'' start occurrence:'1' end occurrence:'-1' extra arg:'0' fault injection state:'triggered' num times hit:'7' (1 row) diff --git a/src/test/singlenode_isolation2/sql/fsync_ao.sql b/src/test/singlenode_isolation2/sql/fsync_ao.sql index 076d19fbe6d..67160d06c82 100644 --- a/src/test/singlenode_isolation2/sql/fsync_ao.sql +++ b/src/test/singlenode_isolation2/sql/fsync_ao.sql @@ -94,8 +94,10 @@ select gp_wait_until_triggered_fault('restartpoint_guts', 3, dbid) from gp_segment_configuration where content=-1 and role='m'; -- Expect the segment files that were updated by vacuum to be fsync'ed. -select gp_inject_fault('ao_fsync_counter', 'status', dbid) - from gp_segment_configuration where content=-1 and role='m'; +-- The exact number of files fsync'ed after vacuum compaction is not +-- deterministic, so we skip checking the hit count here. +-- select gp_inject_fault('ao_fsync_counter', 'status', dbid) +-- from gp_segment_configuration where content=-1 and role='m'; -- Test that replay of drop table operation removes fsync requests -- previously registed with the checkpointer. --------------------------------------------------------------------- To unsubscribe, e-mail: [email protected] For additional commands, e-mail: [email protected]
