For a long time I had a well synchronized IRI fullnode running properly with neighbors managed by CarrIOTA Nelson.

Then I updated IRI to version and I never succeded in having a fullnode running synchronized.

Every time the fullnode starts, with CarrIOTA Nelson dinamically providing the neighbors, latestSolidSubtangleMilestoneIndex reaches a value which is a little less than latestMilestoneIndex and then it stucks on that value forever even if new transactions continue to arrive from the neighbors.

Of course I also tried to rebuild the db from scratch without success.

Is there anybody who is experiencing this behaviour with version of IRI fullnode?

  • This could be one possible reason for the lowering of TPS value, at least as I happened to read lately on Discord channels.
    – blockmined
    Mar 10, 2018 at 14:22
  • same issue here. i have also tried to remove complete db.
    – bumblebee
    Mar 15, 2018 at 6:37
  • @Saint Hill. You could be fairly right. Anyway I usually rely on Nelson for managing neighbors and this always worked well for me until version
    – blockmined
    Mar 20, 2018 at 13:28

2 Answers 2


Probably due to this this open issue that says:

latestSolidSubtangleMiletoneIndex does not update in 'getNodeInfo' until a system restart it updates. It just stays the same until a restart.

So the fullnode is synchronized but following calls to getNodeInfo doesn't return updated values for latestSolidSubtangleMiletoneIndex.


I have mi IRI up & synced since the release day. I did not have good experiences with Nelson. Instead I used this guide (writen be me). it might not be the most complete guide but my node is always synced and allows me to use my wallet in a neat way.

I only have 4 neighbors and they are 100% stable. I think that, as CFB stated some time ago, less ir more when it comes to this matter. 4 stable fully synced neighbors gave me an awesome performance so far.

  • One the missing parts in the guide (that I will add sooin) is the one related to boot the 30 minutes old mainnetdb in order to speed up a lot the sync process. This image can be found here db.iota.partners/IOTA.partners-mainnetdb.tar.gz and should replace whatever you have in your mainnetdb. Mar 19, 2018 at 17:45
  • [This continues the comment above]. @CarpinchoDem As I wrote in my question I always had a IRI fullnode plus Nelson synchronized. When I upgraded to I never succeded in having a syncronized fullnode running. Nelson manages neighbors also limiting their numbers.
    – blockmined
    Mar 20, 2018 at 13:22

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