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Unanswered Questions

112 questions with no upvoted or accepted answers
5
votes
2answers
237 views

How to sign the XDR transaction envelop and and post it through java sdk?

I received the XDR envelope of a transaction. I need to sign it and submit using Java SDK. I am able to decode the XDR, but need help on how to sign and submit.
4
votes
0answers
32 views

Limiting the size of local buckets on the core

I'm running a core. It's generating a lot of files in its internal bucket (not the history bucket): files that contain the recent-ish history of the blockchain. Is there a way to limit this amount? ...
4
votes
0answers
49 views

Stellar-Core won't sync anymore: “Replay failed: mismatched ledger hash”

Stellar-core was running smoothly, then crashed without log entries. Node now fails to catch-up and sync. Logs are complaining about a mismatched ledger hash and I am stuck in an endless loop of ...
4
votes
1answer
35 views

Own stellar horizon is not showing data prior to own instance launch date

I run a stellar node using the docker quickstart image and due to some syncing error the underlying ec2 instance was terminated and restarted on 2018-12-28T10:45:19Z, state of core is Synced. ...
4
votes
1answer
66 views

Encrypt with Public Key and decrypt with Private Key using elliptic-curve cryptography

Is it possible to perform public key encryption flow for elliptic-curve cryptography? https://en.wikipedia.org/wiki/Public-key_cryptography I need to implement the following scenario: Alice ...
4
votes
0answers
77 views

Stellar-core failing to initialize history archives to S3

My archive setups are configured like this: [HISTORY.v1] get="aws s3 cp s3://my-bucket/v1/{0} {1}" put="aws s3 cp {0} s3://my-bucket/v1/{1}" [HISTORY.v2] get="aws s3 cp s3://my-bucket/v2/{0} {1}" [...
4
votes
0answers
60 views

How can I do asymmetric encryption and decryption?

How can I do asymmetric encryption by using Stellar's private key of sender and Stellar's public key of receiver and vice-versa in case of case decryption? I had gone through many methods but I am ...
4
votes
4answers
111 views

How does Java parse XDR information?

I need to get the transaction records. This information seems to be in XDR. How can I parse it in Java?
4
votes
0answers
27 views

Where can i find info on the meaning of each metric of the core?

stellar-core has a lot of metrics that can be accessed with /metrics Is there someplace where I can find out what each metric means? For example "herder.pending-txs.age2", whats that? I tried ...
4
votes
0answers
44 views

Where can I find history files structure (transactions and ledger files specifically)?

I'm trying to extract history files from the archive, I understood that transaction file is built of pairs: (32bit length,data), but when I try to extract the data from a single stream I get error: ...
4
votes
1answer
76 views

How to use MANUAL_CLOSE in core config?

The example config states that "Ledger will only close when stellar-core gets the manualclose command". On a new private testing network (ledger#=1), after setting MANUAL_CLOSE=true, I did stellar-...
4
votes
0answers
66 views

What is the process for the community to propose an XLM lockup?

Let me start by saying I am not proposing a wholesale token "burning" as I believe that could have unintended negative consequences long term. However, considering the tremendous price appreciation ...
3
votes
2answers
28 views

Stellar's Quorum Structure

In the Stellar whitepaper, there are examples of various Quorum structures. Which one does Stellar use? Is there a visual representation that I should look at?
3
votes
0answers
10 views

How does Stellar-Core handle multiple archives in a secure manner?

For a stellar code, if a node is configured with multiple history archives for reading, presumably from sources of different nodes. How does this node handle discrepancies between the historical data? ...
3
votes
0answers
19 views

Stellar-core not syncing on testnet after restart. Missing Buckets not being retrieved

After attempting to restart a stellar core node I had running on the test net I got an error, and when I tried to run stellar-core (inside docker container) with stellar-core run I got the following: ...

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