Questions tagged [synchronization]

The process of bringing a Monero client up to date with the blocks it is missing from the block chain.

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17
votes
1answer
13k views

I forgot to upgrade (from CLI or GUI v0.13 to CLI or GUI v0.14) and, as a result, accidentally synced to the wrong (alternative) chain

I forgot to upgrade (from CLI or GUI v0.13 to CLI or GUI v0.14) and, as a result, accidentally synced to the wrong (alternative) chain. How do I resolve this issue?
16
votes
1answer
26k views

My blockchain is stuck, how do I “unstuck” it?

During the last few weeks a common, reoccurring, question seems to be how to get one's blockchain "unstuck". This guide will, hopefully, provide some assistance in doing so.
10
votes
1answer
10k views

How do I move the blockchain (data.mdb) to a different directory during (or after) the initial sync without losing the progress?

I am currently performing the initial sync to the default directory, but my drive is nearly full. How do I move (and subsequently sync) the blockchain to another drive without losing the progress?
29
votes
4answers
27k views

What is the fastest way to synchronize the daemon?

Running the daemon without any modifications can take a long time to synchronize. Are there any faster options for synchronizing the daemon with the network?
12
votes
3answers
5k views

Do I need to sync the entire blockchain before I can send a transaction?

I have a cold storage wallet that I have only used to receive payments. After recovering my wallet with my mnemonic seed, do I need to synchronize the entire blockchain before I can send a ...
5
votes
1answer
3k views

Monero sync too too slow

I'm syncing monero for the first time. I have an SSD on my syncing PC. I left all day syncing plus all night. I still got 253624 blocks to sync, and letting it all night only synced 400 blocks. This ...
4
votes
1answer
5k views

How to synchronize the GUI wallet using the blockchain bootstrap

I'm having trouble trying to sync the GUI wallet with the blockchain. I'm trying to use an old 2008 Macbook which I had lying around, with OS X El Capitan (HDD, 8gb RAM, 200gb free storage). I've ...
7
votes
2answers
1k views

Monero Height at a standstill

My Height seems to be stuck here 335459/335459 (100.0%) on mainnet But when I check the current height online it's 1289240 Could someone help me?
12
votes
1answer
681 views

Meaning of “62 days ahead” message after full node has finished synchronizing

What does the message "62 days ahead" message mean? My full node has finished synchronizing (I confirmed this by comparing my block height with both moneroblocks.info and Explore.MoneroWorld.com)
8
votes
1answer
2k views

Why does the option “--verify 0” for monero-blockchain-import not work?

When I use the command ./monero-blockchain-import --verify 0 --input-file ./blockchain.raw it says "Failed to parse arguments: unrecognised option '--verify'".
6
votes
2answers
324 views

Started monerod 0.10.1 on an AWS EC2 t2.micro instance, why does it sync so slowly?

I started monerod on an AWS EC2 instance of type t2.micro. This means it has 1GB of RAM, which should be enough from what I've read in various places. It is syncing (from scratch) since two days ...
6
votes
2answers
734 views

When syncing Monero's blockchain from scratch, why does it begin fast and end slow?

I'm currently syncing from scratch, and noticed that the first million blocks or so synced really fast, but the final blocks take forever. Why is this?
6
votes
1answer
414 views

Since monerod through Tor is slower (on Whonix), would importing the .raw be faster?

My understanding is that importing a blockchain backup with Monero and other cryptocurrencies takes about the same time it takes to sync normally. The only reason I could see for someone doing that, ...
3
votes
1answer
428 views

Attempting to get output pubkey by global index but key does not exist

Synchronization is stuck at block height 1200001 (98.5%). Running monerod in version monero.win.x64.v0-10-1-0 it says You are now synchronized with the network. However, I am getting the following in ...
2
votes
1answer
111 views

Monerod and wallet fully synced, not recognizing transactions made before the fork as valid

Both wallet and CLI are showing the incorrect balance after many full blockchain rescans, trying with the CLI, same result, rescan from genesis block and arbitrary block numbers, same result. Full ...