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Diffstat (limited to 'src/backend')
-rw-r--r--src/backend/replication/slot.c17
1 files changed, 12 insertions, 5 deletions
diff --git a/src/backend/replication/slot.c b/src/backend/replication/slot.c
index 0bd00311888..e9328961dd3 100644
--- a/src/backend/replication/slot.c
+++ b/src/backend/replication/slot.c
@@ -1293,8 +1293,12 @@ InvalidatePossiblyObsoleteSlot(ReplicationSlot *s, XLogRecPtr oldestLSN,
if (last_signaled_pid != active_pid)
{
ereport(LOG,
- (errmsg("terminating process %d to release replication slot \"%s\"",
- active_pid, NameStr(slotname))));
+ errmsg("terminating process %d to release replication slot \"%s\"",
+ active_pid, NameStr(slotname)),
+ errdetail("The slot's restart_lsn %X/%X exceeds the limit by %llu bytes.",
+ LSN_FORMAT_ARGS(restart_lsn),
+ (unsigned long long) (oldestLSN - restart_lsn)),
+ errhint("You might need to increase max_slot_wal_keep_size."));
(void) kill(active_pid, SIGTERM);
last_signaled_pid = active_pid;
@@ -1331,9 +1335,12 @@ InvalidatePossiblyObsoleteSlot(ReplicationSlot *s, XLogRecPtr oldestLSN,
ReplicationSlotRelease();
ereport(LOG,
- (errmsg("invalidating slot \"%s\" because its restart_lsn %X/%X exceeds max_slot_wal_keep_size",
- NameStr(slotname),
- LSN_FORMAT_ARGS(restart_lsn))));
+ errmsg("invalidating obsolete replication slot \"%s\"",
+ NameStr(slotname)),
+ errdetail("The slot's restart_lsn %X/%X exceeds the limit by %llu bytes.",
+ LSN_FORMAT_ARGS(restart_lsn),
+ (unsigned long long) (oldestLSN - restart_lsn)),
+ errhint("You might need to increase max_slot_wal_keep_size."));
/* done with this slot for now */
break;