NEM Beta 0.6.97

#1

Long time no see :vulcan_salute:

NEM Beta 0.6.97

Changes:

1) Bug fixes for retrieving account’s mosaic via API:
In some cases, where an account’s namespace with mosaics had expired, the API call resulted in “Internal Server Error”.

2) Bug fix for hash cache:
In case of a block rollback, it was possible that a transaction that was included in the block that was rolled back, was included in a block with different height. This made it impossible to retrieve the transaction via /transaction/get?hash=<TheTxHash>.

Note for Supernode owners:
Supernode owners should target a vps with at least 8GB and start NIS with params “-Xms5G -Xmx5G” and use the G1 garbage collector by specifying additionally “-XX:+UseG1GC -XX:MaxGCPauseMillis=200” as start params. It is of course possible to run NIS with a 4GB vps but you probably need to restart NIS every few weeks.

NEM requires Java 8
You can download Java from official page: http://java.com/en/download/manual.jsp12 16

Standalone version: http://bob.nem.ninja/

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#2

Thanks Bloody Rookie, is the upgrade enforced and when is the cutoff date if it is enforced for SN owners.

#3

Upgrade is mandatory. I will post a date until the supernodes have to be upgraded in the supernodes thread.

1 Like
#4

Thanks, have upgraded. I presume all jars in libs folder and 4 jars in nis folder just need replacing.

Is the GC collector line necessary, and what difference would it make if that line wasn’t in the start up parameters?

#5

Yes

Not necessary. It minimizes the “stop the world” events when garbage collecting. Every now and then a full GC still is needed but the more the node has the less that happens.

3 Likes
#6

Thanks, it is good update.

#7

NEM blockchain nem2-asset-identifier is not found on npm packages. I have been following the tutorial on applying blockchain to supply chain using NEM, but i can’t npm install because the packages is removed from github and npm registry. Are there any updates or an alternative library

#9

This release is a NIS release, i.e. for the current public blokchain. It has nothing to do with catapult.

#10

FYI, the download link on this page still links to the previous version:
https://nem.io/downloads/