This alert is expounded to a consensus difficulty that occurred on the Frontier community at block 116,522, mined on 2015-08-20 at 14:59:16+02:00 – Challenge has been fastened, see “Repair” under.
Affect: Excessive
Challenge description: State database consensus difficulty in geth with deletion of account knowledge, which may occur throughout SUICIDE directions.
Affected implementations: All geth implementations as much as and together with variations 1.0.1, 1.1.0 and develop (“unstable 1.1.0”) have been affected. Eth (C++) and pyethereum (Python) are unaffected.
Results on anticipated chain reorganisation depth: Enhance ready time for eventual block affirmation to 12 hours
Proposed non permanent workaround: Miners change to eth or pyethereum asap
Remedial motion taken by Ethereum: Provision of fixes as under.
Repair: Observe that the consensus difficulty occured simply earlier than the announcement of the brand new launch 1.1.0. When upgrading, please be sure to improve to the model you supposed as you may not wish to repair and improve from 1.0.1 to 1.1.0 (which has not but been formally launched) on the identical time. Fixes under are for model 1.0.2 – builds are generated for v 1.0.2.
- Launch 1.0.2 together with supply and binaries may be discovered here
- In case you are constructing from supply: git pull adopted by make geth – please use the grasp department commit a0303ff4bdc17fba10baea4ce9ff250e5923efa2
- If utilizing the PPA: sudo apt-get replace then sudo apt-get improve
- We’re nonetheless engaged on the brew repair
The right model for this replace on Ubuntu AND OSX is Geth/v1.0.2-a0303f
Observe that it’s seemingly that you just obtain the next message alert which is able to resolve itself after some time as soon as your friends have up to date their purchasers:
I0820 19:00:53.368852 4539 chain_manager.go:776] Unhealthy block #116522 (05bef30ef572270f654746da22639a7a0c97dd97a7050b9e252391996aaeb689)
I0820 19:00:53.368891 4539 chain_manager.go:777] Discovered recognized unhealthy hash in chain 05bef30ef572270f654746da22639a7a0c97dd97a7050b9e
Updates:
- 20/08/15 17:47+02:00 Challenge has been recognized and repair for geth is underway. Geth(Go)-Miners ought to improve asap as soon as the fixes turn out to be out there and in the meantime change to Eth (C++) or Python. Eth (C++) and Python miners are unaffected.
- 20/08/15 19:38+02:00 Official launch of fixes, see above.
- 20/08/15 21:19+02:00 Observe that the consenus difficulty occured simply earlier than the announcement of the brand new launch 1.0.2. Subsequently, please be sure that you get the repair you need, i.e. stay on 1.0.1 or improve to 1.0.2. See “Repair” for extra particulars.
- 21/08/15 11:30+2:00 For the reason that prevalence of the consensus difficulty, we have been carefully monitoring the chain and community. Based on community statistics, most miners have upgraded to the patched 1.0.2 or switched to eth. Our expectations regarding most seemingly chain-reorganization depth is 750 blocks.
