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Revert: Get rid of WALBufMappingLock

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This commit reverts 6a2275b895.  Buildfarm failure on batta spots some
concurrency issue, which requires further investigation.
This commit is contained in:
Alexander Korotkov
2025-02-17 12:35:28 +02:00
parent 75dfde1363
commit 3fb58625d1
3 changed files with 49 additions and 133 deletions
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src/backend/utils/activity/wait_event_names.txt
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@@ -155,7 +155,6 @@ REPLICATION_SLOT_DROP "Waiting for a replication slot to become inactive so it c
RESTORE_COMMAND "Waiting for <xref linkend="guc-restore-command"/> to complete."
SAFE_SNAPSHOT "Waiting to obtain a valid snapshot for a <literal>READ ONLY DEFERRABLE</literal> transaction."
SYNC_REP "Waiting for confirmation from a remote server during synchronous replication."
WAL_BUFFER_INIT "Waiting on WAL buffer to be initialized."
WAL_RECEIVER_EXIT "Waiting for the WAL receiver to exit."
WAL_RECEIVER_WAIT_START "Waiting for startup process to send initial data for streaming replication."
WAL_SUMMARY_READY "Waiting for a new WAL summary to be generated."
@@ -311,6 +310,7 @@ XidGen "Waiting to allocate a new transaction ID."
ProcArray "Waiting to access the shared per-process data structures (typically, to get a snapshot or report a session's transaction ID)."
SInvalRead "Waiting to retrieve messages from the shared catalog invalidation queue."
SInvalWrite "Waiting to add a message to the shared catalog invalidation queue."
WALBufMapping "Waiting to replace a page in WAL buffers."
WALWrite "Waiting for WAL buffers to be written to disk."
ControlFile "Waiting to read or update the <filename>pg_control</filename> file or create a new WAL file."
MultiXactGen "Waiting to read or update shared multixact state."