Location of the index .ldb files on Android phone

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1

Hi, I have enabled hidden files display in my Android phone’s “ES File Explorer”, but I can’t find the index .ldb files, neither in the microSD card:

/storage/extSdCard/Android/data/com.nutomic.syncthingandroid/

(the only subfolder is files which contains the actual files)

nor in the internal storage

/storage/sdcard0/Android/data/com.nutomic.syncthingandroid/

Where is the hash database located on Android?

3

Thanks @Catfriend1 for your answer.

Following this message How/when does Syncthing know it has to rescan files? and @calmh’s answer, I need to copy the folder index-v0.14.0.db and its content, from my PC to my Android phone (unrooted).

Do you see a solution to do this without rooting the phone?

5

Thanks for your answer @Catfriend1, I will try this with STF!

(I delete ST classic before installing STF, right?)

I will just try about copying the database from PC to Android, but no problem it it fails : I have many backups.

As it seems you are the maindeveloper of STF @Catfriend1, I think this is an interesting feature : the first scan/hash of a 100 GB microSD card (example: full of MP3) is horrible to do on phone : due to power management, it seems that the process is often interrupted. Then even after a few nights and tricks to maintain the phone on during the process, the 100 GB is still not fully scanned.

Feature proposal : insert the microSD on PC, do the hash of the folder on PC (it takes only a few hours), copy the hash database to microSD card, then re-insert the microSD card in the phone, and click “Import hash database computed on computer” (with a better name!) and done!

Maybe what you described is already exactly this, I’ll try it today !

PS : General question about Android : is it totally impossible to write in /data/data/com.nutomic.syncthingandroid/files/index-v0.14.0.db, either with Windows Explorer (phone connected to PC via USB) or adb or an app like ES File Explorer, if I’m unrooted ? Or is there a small solution that could work even for unrooted phones?

6

I just installed ST Fork, shared a few folders with PC (working).

Then I tried Settings > Import and export > Export configuration (I also found this from the main window’s “drawer menu”), and I can find /storage/emulated/0/backups/syncthing/ indeed, but there are only 4 files:

cert.pem, config.xml, key.pem, sharedpreferences.dat

It seems that the Export configuration feature doesn’t export the database in backups/syncthing.

Where is the option to export database as well?

PS: Settings > About says:

STF Wrapper v.1.4.2.0 ST version v.1.4.2 ST Database size 47M

(I installed STF from Google Play Store)

8

Ok, this only works since Android API 26+ so you’ll need Android 8+ to do it.

Oh this is the reason, then, I have Android 5 (unrooted).

Do you see a solution for my problem with ST or STF?

Either with adb or ES File Explorer or something else?

PS: what do you think of this feature? Insert the microSD on PC, do the hash of the 100GB folder on PC (it takes ~ 1 hour), copy the hash database to the microSD card, then re-insert the microSD card in the phone, and click “Import hash database computed on computer” and done!

10

I am not even sure why this is an issue. Most recent (like last 4-5 years) are arm64, which has built-in SHA256 instructions, so hashing/scanning on my phone used to be 6-8 times faster than 4-5 year old CPU without SHA256 instructions.

11

There are millions of devices older than that still in use. If the OP’s phone runs Android 5, then it may very likely belong to that group.

12

Thank you for your answers.

This would probably be the easiest way @Catfriend1.

Or just a Import .tar.gz database backup option under Settings > Experimental?

Then it would just open a Filepicker, we would choose a .tar.gz and it would just decompress this package to the normal database folder.

Do you think this is something possible in the future?

One argument for this would be the same as @Calmh’s on this github issue:

Syncthing could use it to seed the real index database when a folder has been moved, copied or removed/re-added, obviating the full initial scan.

13

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