OpenError: IO error: ./tmp/database: Invalid argument

[cre8]

I use level in a docker container and it worked quite well, but the last days I get an error: (node:16) UnhandledPromiseRejectionWarning: OpenError: IO error: ./tmp/database: Invalid argument at /block/node_modules/levelup/lib/levelup.js:87:23

The folder and files for the database are created. When I change the location to ./database it works, but no more with a location in a subfolder.

[vweevers]

• Can you please share code and the output of npm ls levelup leveldown?
• Does the db reside on a Docker volume? What kind?
• Does the directory have proper permissions?
• Is the directory empty?

[cre8]

• Can you please share code and the output of npm ls levelup leveldown?

`-- [email protected]
  +-- [email protected]
  | `-- [email protected]
  `-- [email protected]

• Does the db reside on a Docker volume? What kind?
  I mount a folder in the container. Other ressources from the volume are used correctly.

• Does the directory have proper permissions?
  The container creates the blockchain folder so i think it has the permission for writing.

• Is the directory empty?
  The tmp directory exists, but the blockchain folder will be created. Same error when I restart the program without deleting the folder.

[cre8]

@vweevers I created a repo to reproduce the steps: https://github.com/cre8/leveldb:

running docker-compose build generator && docker-compose run generator will result:

generator_1  | (node:5) UnhandledPromiseRejectionWarning: OpenError: IO error: ./tmp/mydb: Invalid argument
generator_1  |     at /block/node_modules/levelup/lib/levelup.js:87:23
generator_1  |     at /block/node_modules/abstract-leveldown/abstract-leveldown.js:41:14
generator_1  |     at /block/node_modules/deferred-leveldown/deferred-leveldown.js:20:21
generator_1  |     at /block/node_modules/abstract-leveldown/abstract-leveldown.js:41:14
generator_1  |     at /block/node_modules/abstract-leveldown/abstract-leveldown.js:41:14
generator_1  | (node:5) UnhandledPromiseRejectionWarning: Unhandled promise rejection. This error originated either by throwing inside of an async function without a catch block, or by rejecting a promise which was not handled with .catch(). (rejection id: 1)
generator_1  | (node:5) [DEP0018] DeprecationWarning: Unhandled promise rejections are deprecated. In the future, promise rejections that are not handled will terminate the Node.js process with a non-zero exit code.
leveldb_generator_1 exited with code 0

Even when the tmp folder does not exist yet docker will create and use it

[vweevers]

Ah, you're using alpine? IIRC leveldown doesn't support it, in the past I had to do npm i --build-from-source.

[vweevers]

See Level/leveldown#388

[cre8]

I don't think that alpine is the problem: I used the image for some weeks and it worked pretty well. I changed the image to a normal node one:

FROM node:8

WORKDIR block

COPY package*.json ./

RUN npm install --build-from-source

COPY index.js .

ENTRYPOINT node index.js        

still the same error...

[vweevers]

OK. Well if anything, --build-from-source will prevent segfaults to that's one thing out of the way.

At a quick glance, your setup looks good otherwise. Will need more time to investigate.

[ralphtheninja]

@cre8 Did you manage to solve this or is this still an issue? Please re-open if needed.

[cre8]

@ralphtheninja I found a solution, but I can't remember the fixes I made to fix it...