Unhandled exception when using RocksDBStore plugin

[AnnaShaleva]

Describe the bug
I'm using Neo 3 preview3 release of neo-cli and trying to switch from LevelDBStore to RocksDBStore Plugin. I'm able to install RocksDBStore via neo-cli, but when I'm trying to re-run neo-cli with "Storage": {"Engine": "RocksDBStore"}, configuration, I get the following error:

NEO-CLI v3.0.0-preview3  -  NEO v3.0.0-preview3-00  -  NEO-VM v3.0.0-preview3

neo> [12:50:38.524] System.IO.FileNotFoundException
Could not load file or assembly 'RocksDbSharp, Version=6.2.2.0, Culture=neutral, PublicKeyToken=null'. The system cannot find the file specified.

   at Neo.Plugins.Storage.Store..ctor(String path)
   at Neo.Plugins.Storage.RocksDBStore.GetStore()
   at Neo.NeoSystem..ctor(String storageEngine)
   at Neo.CLI.MainService.Start(String[] args)
   at System.Threading.Tasks.Task.<>c.<ThrowAsync>b__139_1(Object state)
   at System.Threading.QueueUserWorkItemCallbackDefaultContext.Execute()
   at System.Threading.ThreadPoolWorkQueue.Dispatch()
   at System.Threading._ThreadPoolWaitCallback.PerformWaitCallback()

Unhandled exception. System.IO.FileNotFoundException: Could not load file or assembly 'RocksDbSharp, Version=6.2.2.0, Culture=neutral, PublicKeyToken=null'. The system cannot find the file specified.

File name: 'RocksDbSharp, Version=6.2.2.0, Culture=neutral, PublicKeyToken=null'
   at Neo.Plugins.Storage.Store..ctor(String path)
   at Neo.Plugins.Storage.RocksDBStore.GetStore()
   at Neo.NeoSystem..ctor(String storageEngine)
   at Neo.CLI.MainService.Start(String[] args)
   at System.Threading.Tasks.Task.<>c.<ThrowAsync>b__139_1(Object state)
   at System.Threading.QueueUserWorkItemCallbackDefaultContext.Execute()
   at System.Threading.ThreadPoolWorkQueue.Dispatch()
   at System.Threading._ThreadPoolWaitCallback.PerformWaitCallback()


Aborted (core dumped)

The same thing happens when I'm trying to install RocksDBStore Plugin manually. This problem looks like #198.

I tried also to unzip RocksDBSharp.dll into Plugins folder from nuget.org, but then it turns out that RocksDBNative.dll is also required and missing

To Reproduce
Steps to reproduce the behavior:

1. Download and unzip neo-cli v3.0.0-preview3 for linux-x64 from releases
2. Download RocksDBStore Plugin v3.0.0-preview3 from releases
3. Unzip RocksDBStore plugin into neo-cli/Plugins/ folder as described in guide
4. Setup single-node environment as described in guide (with "Storage": {"Engine": "RocksDBStore"}, configuration)
5. Run ./neo-cli

Expected behavior
Node is running with RocksDB storage.

Platform:

• OS: Ubuntu 18.04.4 LTS (Bionic Beaver)
• Version: neo-cli v3.0.0-preview3

[shargon]

Could you check this change #332 ?

[AnnaShaleva]

I built #332 and put binaries into Plugins folder. Unfortunately, this does not solve the problem.

[shargon]

I see that your error was different to my error, i will check it again

[kokahunter]

I experienced this with previous neo versions and leveldb. rocksdb.dll is probably missing in neo-cli path.

This is a small challenge as well when developing plugins with other dependencies as you have to find out which dll is needed in neo-cli path and which in the plugin path.

Would be nice to have a cleaner solution for this.

[shargon]

The release binary doesn't contains the dependencies. Could you create a new relase with it @superboyiii ? Also it will require #332 for work.

[superboyiii]

The release binary doesn't contains the dependencies. Could you create a new relase with it @superboyiii ? Also it will require #332 for work.

Fine, whenever it's merged.

[superboyiii]

I experienced this with previous neo versions and leveldb. rocksdb.dll is probably missing in neo-cli path.

This is a small challenge as well when developing plugins with other dependencies as you have to find out which dll is needed in neo-cli path and which in the plugin path.

Would be nice to have a cleaner solution for this.

Are you in linux? Would you like to try install this dependency? neo-project/docs#1127

[AnnaShaleva]

@superboyiii, all works fine with the following things done:

1. Binaries of RocksDBStore from Fix RocksDb #332 inside the neo-cli/Plugins folder
2. RocksDBSharp.dll from https://www.nuget.org/packages/RocksDbSharp/ inside the neo-cli folder
3. sudo apt-get install librocksdb-dev

All of these components are required.