Last account update for current slot.

[SerK0]

Sometime there are several updates for account in a slot.
Would be great to have flag/notification about ending of slot updates for account.
Is there a way to get this data from streamer?

For example:

1. slot = 1, account = x, write_version=1, date, is_last_update=False
2. slot = 1, account = x, write_version=8, date, is_last_update=False
3. slot = 1, account = x, write_version=14, date, is_last_update=True

[linuskendall]

The update with the highest version is the last one in slot.

…

On Sun, 14 Apr 2024 at 20:37, SerK0 ***@***.***> wrote: Sometime there are several updates for account in a slot. Would be great to have flag/notification about ending of slot updates for account. Is there a way to get this data from streamer? For example: 1. slot = 1, account = x, write_version=1, date, is_last_update=False 2. slot = 1, account = x, write_version=8, date, is_last_update=False 3. slot = 1, account = x, write_version=14, date, is_last_update=True — Reply to this email directly, view it on GitHub <#322>, or unsubscribe <https://github.com/notifications/unsubscribe-auth/ABHOYRKUUZIAWFJVCEK6JMDY5KLUVAVCNFSM6AAAAABGGG5EESVHI2DSMVQWIX3LMV43ASLTON2WKOZSGI2DEMRRGI2TKNI> . You are receiving this because you are subscribed to this thread.Message ID: ***@***.***>

[SerK0]

Yes, bigger write version, fresher update.
But question a little bit different, how to understand that this one update is the last one and I should not wait for another one?

[fanatid]

geyser interface does not provide such information
you can assume that stream is finished when block meta message is received

[SerK0]

I realized that block meta comes slowly, for example:

Timestamp - Slot number - Update order
1713183053.118703 - Slot: 260262935 - update 1
1713183053.1275694 - Slot: 260262935 - update 1
1713183053.3360858 - Slot: 260262935 - Blockmeta received

1713183056.801951 - Slot: 260262942 - update 1
1713183056.981968 - Slot: 260262942 - Blockmeta received

1713183078.8877778 - Slot: 260262991 - update 1
1713183079.219065 - Slot: 260262991 - Blockmeta received

Blockmeta comes like 100-300ms later after update. Is it possible to understand that streamer won't push messages more?
Maybe I can get some message queue to realize that there is no messages?

[fanatid]

Maybe I can get some message queue to realize that there is no messages?

no, you can't, check geyser interface, please.

you do not receive block meta with delay, you receive it when the bank is frozen, but account updates are received while the new bank is processed (this is the benefit of the geyser)