Could not execute sparql: UNIQUE constraint failed: nie:DataObject.nie:url

[Dmitrii Shcherbakov]

on-boot error messages in journalctl:

окт 15 01:48:40 blade tracker-miner-f[6886]: (Sparql buffer) Error in task 0 (file:///home/dima/Desktop) of the array-update: UNIQUE constraint failed: nie:DataObject.nie:url
окт 15 01:48:40 blade tracker-miner-f[6886]: Could not execute sparql: UNIQUE constraint failed: nie:DataObject.nie:url
окт 15 01:48:40 blade tracker-miner-f[6886]: (Sparql buffer) Error in task 0 (file:///home/dima/Desktop) of the array-update: UNIQUE constraint failed: nie:DataObject.nie:url
окт 15 01:48:40 blade tracker-miner-f[6886]: Could not execute sparql: UNIQUE constraint failed: nie:DataObject.nie:url
окт 15 01:48:40 blade tracker-miner-f[6886]: (Sparql buffer) Error in task 0 (file:///home/dima/Desktop) of the array-update: UNIQUE constraint failed: nie:DataObject.nie:url
окт 15 01:48:40 blade tracker-miner-f[6886]: Could not execute sparql: UNIQUE constraint failed: nie:DataObject.nie:url
окт 15 01:48:40 blade tracker-miner-f[6886]: (Sparql buffer) Error in task 0 (file:///home/dima/Desktop) of the array-update: UNIQUE constraint failed: nie:DataObject.nie:url
окт 15 01:48:40 blade tracker-miner-f[6886]: Could not execute sparql: UNIQUE constraint failed: nie:DataObject.nie:url
окт 15 01:48:40 blade tracker-miner-f[6886]: File 'file:///home/dima/Desktop/j' has been reenqueued more than 2 times. It will not be indexed.
окт 15 01:48:44 blade tracker-miner-f[6886]: (Sparql buffer) Error in task 0 (file:///home/dima/Desktop) of the array-update: UNIQUE constraint failed: nie:DataObject.nie:url
окт 15 01:48:44 blade tracker-miner-f[6886]: Could not execute sparql: UNIQUE constraint failed: nie:DataObject.nie:url

ProblemType: Bug
DistroRelease: Ubuntu 17.10
Package: tracker-miner-fs 2.0.2-1
ProcVersionSignature: Ubuntu 4.13.0-16.19-generic 4.13.4
Uname: Linux 4.13.0-16-generic x86_64
NonfreeKernelModules: nvidia_uvm nvidia_drm nvidia_modeset nvidia
ApportVersion: 2.20.7-0ubuntu3
Architecture: amd64
CurrentDesktop: ubuntu:GNOME
Date: Sun Oct 15 02:03:05 2017
InstallationDate: Installed on 2017-02-27 (229 days ago)
InstallationMedia: Ubuntu 17.04 "Zesty Zapus" - Alpha amd64 (20170227)
SourcePackage: tracker-miners
UpgradeStatus: Upgraded to artful on 2017-09-13 (31 days ago)

[Launchpad Janitor (janitor)]

Status changed to 'Confirmed' because the bug affects multiple users.

[compagnon (christopher-compagnon)]

I confirmed this issue.
The size /var/log/syslog is now 18 Go, filled with :

Apr 6 16:48:57 localhost tracker-miner-f[2222]: (Sparql buffer) Error in task 0 (file:///xxx of the array-update: UNIQUE constraint failed: nie:DataObject.nie:url
Apr 6 16:48:57 localhost tracker-miner-f[2222]: Could not execute sparql: UNIQUE constraint failed: nie:DataObject.nie:url
Apr 6 16:48:57 localhost tracker-miner-f[2222]: (Sparql buffer) Error in task 0 (file:///xxx) of the array-update: UNIQUE constraint failed: nie:DataObject.nie:url
Apr 6 16:48:57 localhost tracker-miner-f[2222]: Could not execute sparql: UNIQUE constraint failed: nie:DataObject.nie:url
Apr 6 16:48:57 localhost tracker-miner-f[2222]: (Sparql buffer) Error in task 0 (file:///xxx) of the array-update: UNIQUE constraint failed: nie:DataObject.nie:url
Apr 6 16:48:57 localhost tracker-miner-f[2222]: Could not execute sparql: UNIQUE constraint failed: nie:DataObject.nie:url
Apr 6 16:48:57 localhost tracker-miner-f[2222]: File 'file:///xxx has been reenqueued more than 2 times. It will not be indexed.