issue: #38399, #39892
- use mvcc timestamp of wal as guaranteets if wal and delegator is
located at same node.
- fix: ignore growing option is lost at hibridsearch
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Signed-off-by: chyezh <chyezh@outlook.com>
issue: #38399
- Make the wal scanner interface same with streaming scanner.
- Use wal if the wal is located at current node.
- Otherwise fallback the old logic.
Signed-off-by: chyezh <chyezh@outlook.com>
issue: #33285
- support transaction on single wal.
- last confirmed message id can still be used when enable transaction.
- add fence operation for segment allocation interceptor.
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Signed-off-by: chyezh <chyezh@outlook.com>
issue: #33285
- add two grpc resolver (by session and by streaming coord assignment
service)
- add one grpc balancer (by serverID and roundrobin)
- add lazy conn to avoid block by first service discovery
- add some utility function for streaming service
Signed-off-by: chyezh <chyezh@outlook.com>
