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Include previous TLI in end-of-recovery and shutdown checkpoint records.

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This isn't used for anything but a sanity check at the moment, but it could
be highly valuable for debugging purposes. It could also be used to recreate
timeline history by traversing WAL, which seems useful.
This commit is contained in:
Heikki Linnakangas
2013-02-11 18:13:09 +02:00
parent c352ea2d74
commit 7803e9327d
6 changed files with 48 additions and 8 deletions
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7
src/backend/access/rmgrdesc/xlogdesc.c
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@@ -41,11 +41,12 @@ xlog_desc(StringInfo buf, uint8 xl_info, char *rec)
CheckPoint *checkpoint = (CheckPoint *) rec;
appendStringInfo(buf, "checkpoint: redo %X/%X; "
"tli %u; fpw %s; xid %u/%u; oid %u; multi %u; offset %u; "
"tli %u; prev tli %u; fpw %s; xid %u/%u; oid %u; multi %u; offset %u; "
"oldest xid %u in DB %u; oldest multi %u in DB %u; "
"oldest running xid %u; %s",
(uint32) (checkpoint->redo >> 32), (uint32) checkpoint->redo,
checkpoint->ThisTimeLineID,
checkpoint->PrevTimeLineID,
checkpoint->fullPageWrites ? "true" : "false",
checkpoint->nextXidEpoch, checkpoint->nextXid,
checkpoint->nextOid,
@@ -125,8 +126,8 @@ xlog_desc(StringInfo buf, uint8 xl_info, char *rec)
xl_end_of_recovery xlrec;
memcpy(&xlrec, rec, sizeof(xl_end_of_recovery));
appendStringInfo(buf, "end_of_recovery: tli %u; time %s",
xlrec.ThisTimeLineID,
appendStringInfo(buf, "end_of_recovery: tli %u; prev tli %u; time %s",
xlrec.ThisTimeLineID, xlrec.PrevTimeLineID,
timestamptz_to_str(xlrec.end_time));
}
else