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What are the cases where a TX is not sent to the Notary Service?


By : DavidAlanRogers
Date : October 14 2020, 02:22 PM
this will help As of Corda 3.3, if Tx has no inputs and no time window then it's not sent to the notary for signature.
But with Corda 4, as I can see in the master, in addition to the above two conditions, it is sent to the notary, in case a reference state is present :
code :


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Corda Transaction is stalled when contacting notary service


By : Lion Redfeather
Date : March 29 2020, 07:55 AM
it helps some times I have solved this problem by using actual host machine IP address in p2pAddress while creating node container.
It was mapped as localhost in p2pAddress and i have already exposed container ip with hostmachine ip. therefore ideally this should not be the issue, however it's creating issue while signing notary service if we are using localhost. many thanks for support.

Highly Available Notary Service Setup in Oracle RAC (Corda Enterprise)


By : LiquidMass
Date : March 29 2020, 07:55 AM
Does that help The use of Oracle RAC to create a HA notary has not been tested. In theory, any database that can be configured to have zero data loss can be used (if the DB doesn't guarantee zero data loss, i.e. it is not strongly consistent and/or doesn't have synchronous replication, data may be lost in failover, allowing double-spends). However, the MySQL HA notary implementation uses some MySQL-specific syntax that may not work with Oracle RAC.
Regarding your specific questions:

getting counter flow errored : when changing from validating Notary to Non Validating Notary


By : Mignon Ma
Date : March 29 2020, 07:55 AM
wish help you to fix your issue Since I had not rebuilt my nodes when I made the validating notary as non validating it threw the error. Once I rebuilt the nodes it worked fine. But not sure whether is it possible to make a validating notary into non-validating by just configuring in the node.conf file.

In Corda, what data is sent to a non-validating notary service?


By : Nevermind
Date : March 29 2020, 07:55 AM
it should still fix some issue Before sending a transaction to a non-validating notary, it is filtered as follows:
code :
stx.buildFilteredTransaction(Predicate { 
    it is StateRef || it is TimeWindow || it == notaryParty 
})

Define remote Notary service


By : Amrin Fatima
Date : March 29 2020, 07:55 AM
it helps some times A notary is only required when either of the following are true:
The transaction has 1+ input states The transaction has a timewindow
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