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[refer #258] Handle CHECKOINT_ONLINE WAL record

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This commit is contained in:
Konstantin Knizhnik
2021-06-18 23:55:59 +03:00
parent 14a0ae5456
commit c564272142
4 changed files with 15 additions and 3 deletions
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2
pageserver/src/object_repository.rs
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@@ -506,8 +506,6 @@ impl Timeline for ObjectTimeline {
let key = relation_size_key(self.timelineid, rel);
let val = ObjectValue::RelationSize(nblocks);
info!("Truncate relation {} to {} blocks at {}", rel, nblocks, lsn);
self.obj_store.put(&key, lsn, &ObjectValue::ser(&val)?)?;
let mut rel_meta = self.rel_meta.write().unwrap();
rel_meta.insert(

13
pageserver/src/waldecoder.rs
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@@ -1181,6 +1181,19 @@ pub fn decode_wal_record(checkpoint: &mut CheckPoint, record: Bytes) -> DecodedW
if next_oid > checkpoint.nextOid {
checkpoint.nextOid = next_oid;
}
} else if info == pg_constants::XLOG_CHECKPOINT_ONLINE
|| info == pg_constants::XLOG_CHECKPOINT_SHUTDOWN
{
let mut checkpoint_bytes = [0u8; SIZEOF_CHECKPOINT];
buf.copy_to_slice(&mut checkpoint_bytes);
let xlog_checkpoint = CheckPoint::decode(&checkpoint_bytes).unwrap();
trace!(
"xlog_checkpoint.oldestXid={}, checkpoint.oldestXid={}",
xlog_checkpoint.oldestXid, checkpoint.oldestXid
);
if (checkpoint.oldestXid.wrapping_sub(xlog_checkpoint.oldestXid) as i32) < 0 {
checkpoint.oldestXid = xlog_checkpoint.oldestXid;
}
}
}

2
pageserver/src/walredo.rs
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@@ -445,7 +445,7 @@ impl PostgresRedoManagerInternal {
transaction_id_set_status(xid, status, &mut page);
}
} else if info == pg_constants::XLOG_XACT_PREPARE {
info!("Apply prepare {} record", xlogrec.xl_xid);
trace!("Apply prepare {} record", xlogrec.xl_xid);
page.clear();
page.extend_from_slice(&buf[..]);
} else {

1
postgres_ffi/src/pg_constants.rs
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@@ -182,4 +182,5 @@ pub const WAL_SEGMENT_SIZE: usize = 16 * 1024 * 1024;
pub const XLOG_BLCKSZ: usize = 8192;
pub const XLOG_CHECKPOINT_SHUTDOWN: u8 = 0x00;
pub const XLOG_CHECKPOINT_ONLINE: u8 = 0x10;
pub const XLP_LONG_HEADER: u16 = 0x0002;