Can't open heap error

[chuxiuhong]

I run my code as follow:

import lib.util.persistent.*;
public class Main {
    public static void main(String[] args) {
        PersistentArray<PersistentString> string = new PersistentArray<>(100);
        ObjectDirectory.put("data",string);
        string.set(0,new PersistentString("hello"));
        System.out.println(string.get(0));
    }
}

then raise error: Opening heap... Encountered error opening pool! Please check if /home/ziqi/pmemdir exists and accessible.

I can use pmdk in C project with the path "/home/ziqi/pmemdir".

OS:Ubuntu 14.04 memory:16G(8G for emulate persistent memory) The permission of /home/ziqi/pmemdir is 777

[leifan89]

Hi chuxiuhong,

Thanks for trying out PCJ! Can you please double check the "path" setting in your config.properties file?

If you are using emulated persistent memory, the "path" should be set to a file inside the emulated file system, not the mount point itself. You can provide any filename that you'd like and PCJ will automatically create the file for you (e.g. /home/ziqi/pmemdir/persistent_heap).

Please let us know if this resolves your issue.

Thanks, Lei