I think I now have data to confirm that indeed it is the shell's interaction with tracker, which is at fault.
For search, you can define what all sources you want to search for, in GNOME shell. At this moment, the following were the problem GNOME Software GNOME Bijiben Notes GNOME Contacts GNOME Calendar Nov 28 12:36:51 learner org.gnome.Bijiben.SearchProvider[9965]: (bijiben-shell-search-provider:2934): GLib-GObject-CRITICAL **: g_object_unref: assertion 'G_IS_OBJECT (object)' failed Nov 28 12:37:07 learner org.gnome.Bijiben.SearchProvider[9965]: (bijiben-shell-search-provider:2934): GLib-GObject-CRITICAL **: g_object_unref: assertion 'G_IS_OBJECT (object)' failed Nov 28 12:37:07 learner org.gnome.Bijiben.SearchProvider[9965]: sending the mass change Nov 28 12:37:07 learner org.gnome.Bijiben.SearchProvider[9965]: (bijiben-shell-search-provider:2934): GLib-GObject-WARNING **: invalid (NULL) pointer instance Nov 28 12:37:07 learner org.gnome.Bijiben.SearchProvider[9965]: (bijiben-shell-search-provider:2934): GLib-GObject-CRITICAL **: g_signal_connect_data: assertion 'G_TYPE_CHECK_INSTANCE (instance)' failed Nov 28 12:37:07 learner org.gnome.Bijiben.SearchProvider[9965]: ** Message: Updating ressource <telephone> urn:uuid:e46e072a-56f2-d059-d197-60c6158cc1cd Nov 28 12:37:07 learner org.gnome.Bijiben.SearchProvider[9965]: sending the mass change Nov 28 12:37:11 learner dbus-daemon[9965]: Activating service name='org.gnome.Nautilus' Nov 28 12:37:11 learner dbus-daemon[9965]: Activating service name='org.gnome.Documents' Nov 28 12:37:11 learner dbus-daemon[9965]: Activating service name='org.gnome.Photos' Nov 28 12:37:11 learner org.gnome.Calendar[9965]: ** (gnome-calendar:2932): WARNING **: Job failed: Operation was cancelled Nov 28 12:37:11 learner org.gnome.Calendar[9965]: ** (gnome-calendar:2932): WARNING **: Job failed: Operation was cancelled Nov 28 12:37:11 learner org.gnome.Calendar[9965]: ** (gnome-calendar:2932): WARNING **: Job failed: Operation was cancelled Nov 28 12:37:11 learner org.gnome.Calendar[9965]: ** (gnome-calendar:2932): WARNING **: Job failed: Operation was cancelled Nov 28 12:37:11 learner org.gnome.Calendar[9965]: ** (gnome-calendar:2932): WARNING **: Job failed: Operation was cancelled Nov 28 12:37:11 learner org.gnome.Calendar[9965]: ** (gnome-calendar:2932): WARNING **: Job failed: Operation was cancelled Nov 28 12:37:11 learner org.gnome.Calendar[9965]: ** (gnome-calendar:2932): WARNING **: Job failed: Operation was cancelled Nov 28 12:37:11 learner org.gnome.Calendar[9965]: ** (gnome-calendar:2932): WARNING **: Job failed: Operation was cancelled Nov 28 12:37:11 learner org.gnome.Calendar[9965]: ** (gnome-calendar:2932): WARNING **: Job failed: Operation was cancelled Nov 28 12:37:11 learner dbus-daemon[9965]: Activating service name='org.gnome.Calculator.SearchProvider' Nov 28 12:37:11 learner dbus-daemon[9965]: Activating service name='org.gnome.Boxes.SearchProvider' Nov 28 12:37:11 learner dbus-daemon[9965]: Activating service name='org.gnome.Contacts.SearchProvider' Nov 28 12:37:11 learner dbus-daemon[9965]: Activating service name='org.gnome.clocks' Nov 28 12:37:11 learner dbus-daemon[9965]: Activating service name='org.gnome.Characters.BackgroundService' Nov 28 12:37:11 learner dbus-daemon[9965]: Activating service name='org.gnome.Software' Nov 28 12:37:11 learner dbus-daemon[9965]: Successfully activated service 'org.gnome.Calculator.SearchProvider' Nov 28 12:37:11 learner dbus-daemon[9965]: Successfully activated service 'org.gnome.Nautilus' Nov 28 12:37:11 learner dbus-daemon[9965]: Successfully activated service 'org.gnome.Boxes.SearchProvider' Nov 28 12:37:11 learner dbus-daemon[9965]: Successfully activated service 'org.gnome.clocks' Nov 28 12:37:11 learner dbus-daemon[9965]: Successfully activated service 'org.gnome.Photos' Nov 28 12:37:11 learner dbus-daemon[9965]: Successfully activated service 'org.gnome.Software' Nov 28 12:37:12 learner org.gnome.Nautilus[9965]: nautilus-wipe-Message: Initializing Nov 28 12:37:12 learner dbus-daemon[9965]: Successfully activated service 'org.gnome.Characters.BackgroundService' Nov 28 12:37:12 learner org.gnome.Nautilus[9965]: sys:1: PyGIWarning: Nautilus was imported without specifying a version first. Use gi.require_version('Nautilus', '3.0') before import to ensure that the right version gets loaded. Nov 28 12:37:12 learner dbus-daemon[9965]: Successfully activated service 'org.gnome.Contacts.SearchProvider' Nov 28 12:37:12 learner org.gnome.Nautilus[9965]: /usr/share/nautilus-python/extensions/nautilus-admin.py:18: PyGIWarning: GConf was imported without specifying a version first. Use gi.require_version('GConf', '2.0') before import to ensure that the right version gets loaded. Nov 28 12:37:12 learner org.gnome.Nautilus[9965]: from gi.repository import Nautilus, GObject, GConf, Gtk, GLib Nov 28 12:37:12 learner dbus-daemon[9965]: Successfully activated service 'org.gnome.Documents' Nov 28 12:37:12 learner org.gnome.Software[9965]: (org.gnome.Software:3375): PackageKit-WARNING **: failed to set proxy: GDBus.Error:org.gtk.GDBus.UnmappedGError.Quark._pk_5fengine_5ferror.Code3: setting the proxy failed Nov 28 12:37:12 learner org.gnome.Software[9965]: (org.gnome.Software:3375): Gs-WARNING **: failed to set proxies: GDBus.Error:org.gtk.GDBus.UnmappedGError.Quark._pk_5fengine_5ferror.Code3: setting the proxy failed Nov 28 12:37:12 learner nautilus[3334]: [N-A] Nautilus-Actions Menu Extender 3.2.3 initializing... Nov 28 12:37:12 learner org.gnome.Nautilus[9965]: Socket: /run/user/1000/ownCloud/socket <=> /ownCloud/socket Nov 28 12:37:12 learner org.gnome.Nautilus[9965]: Socket File: /run/user/1000/ownCloud/socket Nov 28 12:37:12 learner org.gnome.Nautilus[9965]: Could not connect to unix socket.[Errno 2] No such file or directory Nov 28 12:37:12 learner org.gnome.Nautilus[9965]: Initializing nautilus-image-converter extension Nov 28 12:37:12 learner nautilus[3334]: [N-A] Nautilus-Actions Tracker 3.2.3 initializing... Nov 28 12:37:13 learner dbus-daemon[9965]: Activating service name='org.gnome.OnlineMiners.MediaServer' Nov 28 12:37:13 learner org.gnome.OnlineMiners.MediaServer[9965]: Gom-Message: Setting scheduler policy to SCHED_IDLE Nov 28 12:37:15 learner dbus-daemon[9965]: Successfully activated service 'org.gnome.OnlineMiners.MediaServer' Nov 28 12:37:15 learner dbus-daemon[9965]: Activating service name='org.gnome.OnlineMiners.GData' Nov 28 12:37:15 learner org.gnome.OnlineMiners.GData[9965]: Gom-Message: Setting scheduler policy to SCHED_IDLE Nov 28 12:37:15 learner org.gnome.OnlineMiners.MediaServer[9965]: (gom-media-server-miner:3517): Gom-WARNING **: Unable to Call GetServers : GDBus.Error:org.freedesktop.DBus.Error.ServiceUnknown: The name com.intel.dleyna-server was not provided by any .service files Nov 28 12:37:15 learner dbus-daemon[9965]: Successfully activated service 'org.gnome.OnlineMiners.GData' Nov 28 12:37:15 learner dbus-daemon[9965]: Activating service name='org.gnome.OnlineMiners.Flickr' Nov 28 12:37:15 learner org.gnome.OnlineMiners.Flickr[9965]: Gom-Message: Setting scheduler policy to SCHED_IDLE Nov 28 12:37:15 learner org.gnome.Contacts.SearchProvider[9965]: (gnome-contacts-search-provider:3368): Gtk-CRITICAL **: gtk_list_store_insert_before: assertion 'iter_is_valid (sibling, list_store)' failed Nov 28 12:37:15 learner org.gnome.Contacts.SearchProvider[9965]: (gnome-contacts-search-provider:3368): Gtk-CRITICAL **: gtk_list_store_set_valist: assertion 'iter_is_valid (iter, list_store)' failed Nov 28 12:37:15 learner dbus-daemon[9965]: Successfully activated service 'org.gnome.OnlineMiners.Flickr' Nov 28 12:37:15 learner dbus-daemon[9965]: Activating service name='org.gnome.OnlineMiners.Facebook' Nov 28 12:37:15 learner org.gnome.OnlineMiners.Facebook[9965]: Gom-Message: Setting scheduler policy to SCHED_IDLE Nov 28 12:37:15 learner dbus-daemon[9965]: Successfully activated service 'org.gnome.OnlineMiners.Facebook' Nov 28 12:37:15 learner org.gnome.Photos[9965]: ** (gnome-photos:3356): WARNING **: Unable to fetch the list of available renderers: GDBus.Error:org.freedesktop.DBus.Error.ServiceUnknown: The name com.intel.dleyna-renderer was not provided by any .service files Nov 28 12:37:15 learner org.gnome.Contacts.SearchProvider[9965]: (gnome-contacts-search-provider:3368): Gtk-CRITICAL **: gtk_list_store_insert_before: assertion 'iter_is_valid (sibling, list_store)' failed Nov 28 12:37:15 learner org.gnome.Contacts.SearchProvider[9965]: (gnome-contacts-search-provider:3368): Gtk-CRITICAL **: gtk_list_store_set_valist: assertion 'iter_is_valid (iter, list_store)' failed Nov 28 12:37:15 learner org.gnome.Contacts.SearchProvider[9965]: (gnome-contacts-search-provider:3368): Gtk-CRITICAL **: gtk_list_store_insert_before: assertion 'iter_is_valid (sibling, list_store)' failed Nov 28 12:37:15 learner org.gnome.Contacts.SearchProvider[9965]: (gnome-contacts-search-provider:3368): Gtk-CRITICAL **: gtk_list_store_set_valist: assertion 'iter_is_valid (iter, list_store)' failed Nov 28 12:37:15 learner org.gnome.Contacts.SearchProvider[9965]: (gnome-contacts-search-provider:3368): Gtk-CRITICAL **: gtk_list_store_insert_before: assertion 'iter_is_valid (sibling, list_store)' failed Nov 28 12:37:15 learner org.gnome.Contacts.SearchProvider[9965]: (gnome-contacts-search-provider:3368): Gtk-CRITICAL **: gtk_list_store_set_valist: assertion 'iter_is_valid (iter, list_store)' failed Nov 28 12:37:15 learner org.gnome.Contacts.SearchProvider[9965]: (gnome-contacts-search-provider:3368): Gtk-CRITICAL **: gtk_list_store_insert_before: assertion 'iter_is_valid (sibling, list_store)' failed Nov 28 12:37:15 learner org.gnome.Contacts.SearchProvider[9965]: (gnome-contacts-search-provider:3368): Gtk-CRITICAL **: gtk_list_store_set_valist: assertion 'iter_is_valid (iter, list_store)' failed Nov 28 12:37:15 learner org.gnome.Contacts.SearchProvider[9965]: (gnome-contacts-search-provider:3368): Gtk-CRITICAL **: gtk_list_store_insert_before: assertion 'iter_is_valid (sibling, list_store)' failed Nov 28 12:37:15 learner org.gnome.Contacts.SearchProvider[9965]: (gnome-contacts-search-provider:3368): Gtk-CRITICAL **: gtk_list_store_set_valist: assertion 'iter_is_valid (iter, list_store)' failed Nov 28 12:37:18 learner org.gnome.Contacts.SearchProvider[9965]: (gnome-contacts-search-provider:3368): Gtk-CRITICAL **: gtk_list_store_insert_before: assertion 'iter_is_valid (sibling, list_store)' failed Nov 28 12:37:18 learner org.gnome.Contacts.SearchProvider[9965]: (gnome-contacts-search-provider:3368): Gtk-CRITICAL **: gtk_list_store_set_valist: assertion 'iter_is_valid (iter, list_store)' failed Nov 28 12:37:18 learner org.gnome.Contacts.SearchProvider[9965]: (gnome-contacts-search-provider:3368): Gtk-CRITICAL **: gtk_list_store_insert_before: assertion 'iter_is_valid (sibling, list_store)' failed Nov 28 12:37:18 learner org.gnome.Contacts.SearchProvider[9965]: (gnome-contacts-search-provider:3368): Gtk-CRITICAL **: gtk_list_store_set_valist: assertion 'iter_is_valid (iter, list_store)' failed Nov 28 12:37:18 learner org.gnome.Contacts.SearchProvider[9965]: (gnome-contacts-search-provider:3368): Gtk-CRITICAL **: gtk_list_store_insert_before: assertion 'iter_is_valid (sibling, list_store)' failed Nov 28 12:37:18 learner org.gnome.Contacts.SearchProvider[9965]: (gnome-contacts-search-provider:3368): Gtk-CRITICAL **: gtk_list_store_set_valist: assertion 'iter_is_valid (iter, list_store)' failed Nov 28 12:37:18 learner org.gnome.Contacts.SearchProvider[9965]: (gnome-contacts-search-provider:3368): Gtk-CRITICAL **: gtk_list_store_insert_before: assertion 'iter_is_valid (sibling, list_store)' failed Nov 28 12:37:18 learner org.gnome.Contacts.SearchProvider[9965]: (gnome-contacts-search-provider:3368): Gtk-CRITICAL **: gtk_list_store_set_valist: assertion 'iter_is_valid (iter, list_store)' failed Nov 28 12:37:18 learner org.gnome.Contacts.SearchProvider[9965]: (gnome-contacts-search-provider:3368): Gtk-CRITICAL **: gtk_list_store_insert_before: assertion 'iter_is_valid (sibling, list_store)' failed Nov 28 12:37:18 learner org.gnome.Contacts.SearchProvider[9965]: (gnome-contacts-search-provider:3368): Gtk-CRITICAL **: gtk_list_store_set_valist: assertion 'iter_is_valid (iter, list_store)' failed Nov 28 12:37:21 learner gnome-session[9936]: (gnome-shell:10215): Clutter-CRITICAL **: clutter_layout_manager_get_child_meta: assertion 'CLUTTER_IS_LAYOUT_MANAGER (manager)' failed Nov 28 12:37:21 learner gnome-session[9936]: (gnome-shell:10215): GLib-GObject-CRITICAL **: g_object_set: assertion 'G_IS_OBJECT (object)' failed Nov 28 12:37:21 learner gnome-session[9936]: (gnome-shell:10215): GLib-GObject-CRITICAL **: g_object_set: assertion 'G_IS_OBJECT (object)' failed Nov 28 12:37:21 learner gnome-session[9936]: (gnome-shell:10215): Clutter-CRITICAL **: clutter_layout_manager_get_child_meta: assertion 'CLUTTER_IS_LAYOUT_MANAGER (manager)' failed Nov 28 12:37:21 learner gnome-session[9936]: (gnome-shell:10215): GLib-GObject-CRITICAL **: g_object_set: assertion 'G_IS_OBJECT (object)' failed Nov 28 12:37:21 learner gnome-session[9936]: (gnome-shell:10215): GLib-GObject-CRITICAL **: g_object_set: assertion 'G_IS_OBJECT (object)' failed Nov 28 12:37:21 learner gnome-session[9936]: (gnome-shell:10215): Clutter-CRITICAL **: clutter_layout_manager_get_child_meta: assertion 'CLUTTER_IS_LAYOUT_MANAGER (manager)' failed Nov 28 12:37:21 learner gnome-session[9936]: (gnome-shell:10215): GLib-GObject-CRITICAL **: g_object_set: assertion 'G_IS_OBJECT (object)' failed Nov 28 12:37:21 learner gnome-session[9936]: (gnome-shell:10215): GLib-GObject-CRITICAL **: g_object_set: assertion 'G_IS_OBJECT (object)' failed Nov 28 12:37:21 learner gnome-session[9936]: (gnome-shell:10215): Clutter-CRITICAL **: clutter_layout_manager_get_child_meta: assertion 'CLUTTER_IS_LAYOUT_MANAGER (manager)' failed Nov 28 12:37:21 learner gnome-session[9936]: (gnome-shell:10215): GLib-GObject-CRITICAL **: g_object_set: assertion 'G_IS_OBJECT (object)' failed Nov 28 12:37:21 learner gnome-session[9936]: (gnome-shell:10215): GLib-GObject-CRITICAL **: g_object_set: assertion 'G_IS_OBJECT (object)' failed Nov 28 12:37:21 learner gnome-session[9936]: (gnome-shell:10215): Clutter-CRITICAL **: clutter_layout_manager_get_child_meta: assertion 'CLUTTER_IS_LAYOUT_MANAGER (manager)' failed Nov 28 12:37:21 learner gnome-session[9936]: (gnome-shell:10215): GLib-GObject-CRITICAL **: g_object_set: assertion 'G_IS_OBJECT (object)' failed Nov 28 12:37:21 learner gnome-session[9936]: (gnome-shell:10215): GLib-GObject-CRITICAL **: g_object_set: assertion 'G_IS_OBJECT (object)' failed Nov 28 12:37:21 learner gnome-session[9936]: (gnome-shell:10215): Clutter-CRITICAL **: clutter_layout_manager_get_child_meta: assertion 'CLUTTER_IS_LAYOUT_MANAGER (manager)' failed Nov 28 12:37:21 learner gnome-session[9936]: (gnome-shell:10215): GLib-GObject-CRITICAL **: g_object_set: assertion 'G_IS_OBJECT (object)' failed Nov 28 12:37:21 learner gnome-session[9936]: (gnome-shell:10215): GLib-GObject-CRITICAL **: g_object_set: assertion 'G_IS_OBJECT (object)' failed Nov 28 12:37:23 learner org.gnome.Photos[9965]: (gnome-photos:3356): GLib-GIO-CRITICAL **: g_file_new_for_path: assertion 'path != NULL' failed Nov 28 12:37:23 learner org.gnome.Photos[9965]: (gnome-photos:3356): GLib-GIO-CRITICAL **: g_file_icon_new: assertion 'G_IS_FILE (file)' failed Nov 28 12:37:23 learner org.gnome.Photos[9965]: (gnome-photos:3356): GLib-GIO-CRITICAL **: g_file_new_for_path: assertion 'path != NULL' failed Nov 28 12:37:23 learner org.gnome.Photos[9965]: (gnome-photos:3356): GLib-GIO-CRITICAL **: g_file_icon_new: assertion 'G_IS_FILE (file)' failed Nov 28 12:37:23 learner org.gnome.Photos[9965]: (gnome-photos:3356): GLib-GIO-CRITICAL **: g_file_new_for_path: assertion 'path != NULL' failed Nov 28 12:37:23 learner org.gnome.Photos[9965]: (gnome-photos:3356): GLib-GIO-CRITICAL **: g_file_icon_new: assertion 'G_IS_FILE (file)' failed Nov 28 12:37:23 learner gnome-session[9936]: (gnome-shell:10215): Clutter-CRITICAL **: clutter_layout_manager_get_child_meta: assertion 'CLUTTER_IS_LAYOUT_MANAGER (manager)' failed Nov 28 12:37:23 learner gnome-session[9936]: (gnome-shell:10215): GLib-GObject-CRITICAL **: g_object_set: assertion 'G_IS_OBJECT (object)' failed Nov 28 12:37:23 learner gnome-session[9936]: (gnome-shell:10215): GLib-GObject-CRITICAL **: g_object_set: assertion 'G_IS_OBJECT (object)' failed Nov 28 12:37:23 learner gnome-session[9936]: (gnome-shell:10215): Clutter-CRITICAL **: clutter_layout_manager_get_child_meta: assertion 'CLUTTER_IS_LAYOUT_MANAGER (manager)' failed Nov 28 12:37:23 learner gnome-session[9936]: (gnome-shell:10215): GLib-GObject-CRITICAL **: g_object_set: assertion 'G_IS_OBJECT (object)' failed Nov 28 12:37:23 learner gnome-session[9936]: (gnome-shell:10215): GLib-GObject-CRITICAL **: g_object_set: assertion 'G_IS_OBJECT (object)' failed Nov 28 12:37:23 learner gnome-session[9936]: (gnome-shell:10215): Clutter-CRITICAL **: clutter_layout_manager_get_child_meta: assertion 'CLUTTER_IS_LAYOUT_MANAGER (manager)' failed Nov 28 12:37:23 learner gnome-session[9936]: (gnome-shell:10215): GLib-GObject-CRITICAL **: g_object_set: assertion 'G_IS_OBJECT (object)' failed Nov 28 12:37:23 learner gnome-session[9936]: (gnome-shell:10215): GLib-GObject-CRITICAL **: g_object_set: assertion 'G_IS_OBJECT (object)' failed Nov 28 12:37:23 learner gnome-session[9936]: (gnome-shell:10215): Clutter-CRITICAL **: clutter_layout_manager_get_child_meta: assertion 'CLUTTER_IS_LAYOUT_MANAGER (manager)' failed Nov 28 12:37:23 learner gnome-session[9936]: (gnome-shell:10215): GLib-GObject-CRITICAL **: g_object_set: assertion 'G_IS_OBJECT (object)' failed Nov 28 12:37:23 learner gnome-session[9936]: (gnome-shell:10215): GLib-GObject-CRITICAL **: g_object_set: assertion 'G_IS_OBJECT (object)' failed Nov 28 12:37:23 learner gnome-session[9936]: (gnome-shell:10215): Clutter-CRITICAL **: clutter_layout_manager_get_child_meta: assertion 'CLUTTER_IS_LAYOUT_MANAGER (manager)' failed Nov 28 12:37:23 learner gnome-session[9936]: (gnome-shell:10215): GLib-GObject-CRITICAL **: g_object_set: assertion 'G_IS_OBJECT (object)' failed Nov 28 12:37:23 learner gnome-session[9936]: (gnome-shell:10215): GLib-GObject-CRITICAL **: g_object_set: assertion 'G_IS_OBJECT (object)' failed Nov 28 12:37:23 learner gnome-session[9936]: (gnome-shell:10215): Clutter-CRITICAL **: clutter_layout_manager_get_child_meta: assertion 'CLUTTER_IS_LAYOUT_MANAGER (manager)' failed Nov 28 12:37:23 learner gnome-session[9936]: (gnome-shell:10215): GLib-GObject-CRITICAL **: g_object_set: assertion 'G_IS_OBJECT (object)' failed Nov 28 12:37:23 learner gnome-session[9936]: (gnome-shell:10215): GLib-GObject-CRITICAL **: g_object_set: assertion 'G_IS_OBJECT (object)' failed Nov 28 12:37:26 learner org.gnome.Nautilus[9965]: Socket: /run/user/1000/ownCloud/socket <=> /ownCloud/socket Nov 28 12:37:26 learner org.gnome.Nautilus[9965]: Socket File: /run/user/1000/ownCloud/socket Nov 28 12:37:26 learner org.gnome.Nautilus[9965]: Could not connect to unix socket.[Errno 2] No such file or directory Nov 28 12:37:26 learner org.gnome.Nautilus[9965]: Socket: /run/user/1000/ownCloud/socket <=> /ownCloud/socket Nov 28 12:37:26 learner org.gnome.Nautilus[9965]: Socket File: /run/user/1000/ownCloud/socket Nov 28 12:37:26 learner org.gnome.Nautilus[9965]: Could not connect to unix socket.[Errno 2] No such file or directory Nov 28 12:37:30 learner org.gnome.Bijiben.SearchProvider[9965]: (bijiben-shell-search-provider:2934): GLib-GObject-CRITICAL **: g_object_unref: assertion 'G_IS_OBJECT (object)' failed Nov 28 12:37:38 learner dbus-daemon[9965]: Activating service name='org.gnome.ControlCenter.SearchProvider' Nov 28 12:37:38 learner dbus-daemon[9965]: Activating service name='org.gnome.Nautilus' Nov 28 12:37:38 learner dbus-daemon[9965]: Activating service name='org.gnome.Documents' Nov 28 12:37:38 learner dbus-daemon[9965]: Activating service name='org.gnome.Photos' Nov 28 12:37:38 learner dbus-daemon[9965]: Activating service name='org.gnome.Calculator.SearchProvider' Nov 28 12:37:38 learner dbus-daemon[9965]: Activating service name='org.gnome.Boxes.SearchProvider' Nov 28 12:37:38 learner dbus-daemon[9965]: Activating service name='org.gnome.clocks' Nov 28 12:37:38 learner dbus-daemon[9965]: Activating service name='org.gnome.Software' Nov 28 12:37:38 learner dbus-daemon[9965]: Successfully activated service 'org.gnome.Calculator.SearchProvider' Nov 28 12:37:38 learner dbus-daemon[9965]: Successfully activated service 'org.gnome.Boxes.SearchProvider' Nov 28 12:37:38 learner dbus-daemon[9965]: Successfully activated service 'org.gnome.Nautilus' Nov 28 12:37:38 learner dbus-daemon[9965]: Successfully activated service 'org.gnome.clocks' Nov 28 12:37:38 learner dbus-daemon[9965]: Successfully activated service 'org.gnome.ControlCenter.SearchProvider' Nov 28 12:37:39 learner org.gnome.Calendar[9965]: ** (gnome-calendar:2932): WARNING **: Job failed: Operation was cancelled Nov 28 12:37:39 learner org.gnome.Calendar[9965]: ** (gnome-calendar:2932): WARNING **: Job failed: Operation was cancelled Nov 28 12:37:39 learner org.gnome.Calendar[9965]: ** (gnome-calendar:2932): WARNING **: Job failed: Operation was cancelled Nov 28 12:37:39 learner org.gnome.Calendar[9965]: ** (gnome-calendar:2932): WARNING **: Job failed: Operation was cancelled Nov 28 12:37:39 learner org.gnome.Calendar[9965]: ** (gnome-calendar:2932): WARNING **: Job failed: Operation was cancelled Nov 28 12:37:39 learner org.gnome.Calendar[9965]: ** (gnome-calendar:2932): WARNING **: Job failed: Operation was cancelled Nov 28 12:37:39 learner org.gnome.Calendar[9965]: ** (gnome-calendar:2932): WARNING **: Job failed: Operation was cancelled Nov 28 12:37:39 learner org.gnome.Calendar[9965]: ** (gnome-calendar:2932): WARNING **: Job failed: Operation was cancelled Nov 28 12:37:39 learner org.gnome.Calendar[9965]: ** (gnome-calendar:2932): WARNING **: Job failed: Operation was cancelled Nov 28 12:37:39 learner dbus-daemon[9965]: Successfully activated service 'org.gnome.Software' Nov 28 12:37:39 learner org.gnome.Nautilus[9965]: nautilus-wipe-Message: Initializing Nov 28 12:37:39 learner dbus-daemon[9965]: Successfully activated service 'org.gnome.Photos' Nov 28 12:37:39 learner org.gnome.Calendar[9965]: ** (gnome-calendar:2932): WARNING **: Job failed: Operation was cancelled Nov 28 12:37:39 learner org.gnome.Calendar[9965]: ** (gnome-calendar:2932): WARNING **: Job failed: Operation was cancelled Nov 28 12:37:39 learner org.gnome.Calendar[9965]: ** (gnome-calendar:2932): WARNING **: Job failed: Operation was cancelled Nov 28 12:37:39 learner org.gnome.Calendar[9965]: ** (gnome-calendar:2932): WARNING **: Job failed: Operation was cancelled Nov 28 12:37:39 learner org.gnome.Calendar[9965]: ** (gnome-calendar:2932): WARNING **: Job failed: Operation was cancelled Nov 28 12:37:39 learner org.gnome.Calendar[9965]: ** (gnome-calendar:2932): WARNING **: Job failed: Operation was cancelled Nov 28 12:37:39 learner org.gnome.Calendar[9965]: ** (gnome-calendar:2932): WARNING **: Job failed: Operation was cancelled Nov 28 12:37:39 learner org.gnome.Calendar[9965]: ** (gnome-calendar:2932): WARNING **: Job failed: Operation was cancelled Nov 28 12:37:39 learner org.gnome.Calendar[9965]: ** (gnome-calendar:2932): WARNING **: Job failed: Operation was cancelled Nov 28 12:37:39 learner org.gnome.Nautilus[9965]: sys:1: PyGIWarning: Nautilus was imported without specifying a version first. Use gi.require_version('Nautilus', '3.0') before import to ensure that the right version gets loaded. Nov 28 12:37:39 learner org.gnome.Software[9965]: (org.gnome.Software:3571): PackageKit-WARNING **: failed to set proxy: GDBus.Error:org.gtk.GDBus.UnmappedGError.Quark._pk_5fengine_5ferror.Code3: setting the proxy failed Nov 28 12:37:39 learner org.gnome.Software[9965]: (org.gnome.Software:3571): Gs-WARNING **: failed to set proxies: GDBus.Error:org.gtk.GDBus.UnmappedGError.Quark._pk_5fengine_5ferror.Code3: setting the proxy failed Nov 28 12:37:39 learner org.gnome.Nautilus[9965]: /usr/share/nautilus-python/extensions/nautilus-admin.py:18: PyGIWarning: GConf was imported without specifying a version first. Use gi.require_version('GConf', '2.0') before import to ensure that the right version gets loaded. Nov 28 12:37:39 learner org.gnome.Nautilus[9965]: from gi.repository import Nautilus, GObject, GConf, Gtk, GLib Nov 28 12:37:39 learner dbus-daemon[9965]: Successfully activated service 'org.gnome.Documents' Nov 28 12:37:39 learner nautilus[3558]: [N-A] Nautilus-Actions Menu Extender 3.2.3 initializing... Nov 28 12:37:39 learner org.gnome.Nautilus[9965]: Socket: /run/user/1000/ownCloud/socket <=> /ownCloud/socket Nov 28 12:37:39 learner org.gnome.Nautilus[9965]: Socket File: /run/user/1000/ownCloud/socket Nov 28 12:37:39 learner org.gnome.Nautilus[9965]: Could not connect to unix socket.[Errno 2] No such file or directory Nov 28 12:37:39 learner org.gnome.Nautilus[9965]: Initializing nautilus-image-converter extension Nov 28 12:37:39 learner nautilus[3558]: [N-A] Nautilus-Actions Tracker 3.2.3 initializing... Nov 28 12:37:40 learner dbus-daemon[9965]: Activating service name='org.gnome.OnlineMiners.MediaServer' Nov 28 12:37:40 learner org.gnome.OnlineMiners.MediaServer[9965]: Gom-Message: Setting scheduler policy to SCHED_IDLE Nov 28 12:37:40 learner dbus-daemon[9965]: Successfully activated service 'org.gnome.OnlineMiners.MediaServer' Nov 28 12:37:40 learner dbus-daemon[9965]: Activating service name='org.gnome.OnlineMiners.GData' Nov 28 12:37:40 learner org.gnome.OnlineMiners.GData[9965]: Gom-Message: Setting scheduler policy to SCHED_IDLE Nov 28 12:37:40 learner dbus-daemon[9965]: Successfully activated service 'org.gnome.OnlineMiners.GData' Nov 28 12:37:40 learner dbus-daemon[9965]: Activating service name='org.gnome.OnlineMiners.Flickr' Nov 28 12:37:40 learner org.gnome.OnlineMiners.Flickr[9965]: Gom-Message: Setting scheduler policy to SCHED_IDLE Nov 28 12:37:40 learner org.gnome.OnlineMiners.MediaServer[9965]: (gom-media-server-miner:3669): Gom-WARNING **: Unable to Call GetServers : GDBus.Error:org.freedesktop.DBus.Error.ServiceUnknown: The name com.intel.dleyna-server was not provided by any .service files Nov 28 12:37:40 learner dbus-daemon[9965]: Successfully activated service 'org.gnome.OnlineMiners.Flickr' Nov 28 12:37:40 learner dbus-daemon[9965]: Activating service name='org.gnome.OnlineMiners.Facebook' Nov 28 12:37:40 learner org.gnome.OnlineMiners.Facebook[9965]: Gom-Message: Setting scheduler policy to SCHED_IDLE Nov 28 12:37:40 learner dbus-daemon[9965]: Successfully activated service 'org.gnome.OnlineMiners.Facebook' Nov 28 12:37:40 learner org.gnome.Photos[9965]: ** (gnome-photos:3568): WARNING **: Unable to fetch the list of available renderers: GDBus.Error:org.freedesktop.DBus.Error.ServiceUnknown: The name com.intel.dleyna-renderer was not provided by any .service files Nov 28 12:37:46 learner systemd[1]: Starting Laptop Mode Tools - Battery Polling Service... Nov 28 12:37:46 learner systemd[1]: Reloading Laptop Mode Tools. Nov 28 12:37:46 learner systemd[1]: Started Laptop Mode Tools - Battery Polling Service. Nov 28 12:37:46 learner laptop-mode[3746]: Laptop mode Nov 28 12:37:46 learner laptop_mode[3694]: Laptop mode Nov 28 12:37:46 learner laptop-mode[3747]: enabled, active [unchanged] Nov 28 12:37:46 learner laptop_mode[3694]: enabled, active [unchanged] Nov 28 12:37:46 learner systemd[1]: Reloaded Laptop Mode Tools. Nov 28 12:37:48 learner org.gnome.Bijiben.SearchProvider[9965]: (bijiben-shell-search-provider:2934): GLib-GObject-CRITICAL **: g_object_unref: assertion 'G_IS_OBJECT (object)' failed Nov 28 12:37:52 learner org.gnome.Nautilus[9965]: Socket: /run/user/1000/ownCloud/socket <=> /ownCloud/socket Nov 28 12:37:52 learner org.gnome.Nautilus[9965]: Socket File: /run/user/1000/ownCloud/socket Nov 28 12:37:52 learner org.gnome.Nautilus[9965]: Could not connect to unix socket.[Errno 2] No such file or directory Nov 28 12:37:52 learner org.gnome.Nautilus[9965]: Socket: /run/user/1000/ownCloud/socket <=> /ownCloud/socket Nov 28 12:37:52 learner org.gnome.Nautilus[9965]: Socket File: /run/user/1000/ownCloud/socket Nov 28 12:37:52 learner org.gnome.Nautilus[9965]: Could not connect to unix socket.[Errno 2] No such file or directory Nov 28 12:38:02 learner org.gnome.Bijiben.SearchProvider[9965]: (bijiben-shell-search-provider:2934): GLib-GObject-CRITICAL **: g_object_unref: assertion 'G_IS_OBJECT (object)' failed Deactivating them led to a cleaner GNOME Journal log, below. And the results are now relevant to what I expect. Nov 28 12:39:24 learner dbus-daemon[9965]: Activating service name='org.gnome.ControlCenter.SearchProvider' Nov 28 12:39:24 learner dbus-daemon[9965]: Activating service name='org.gnome.Nautilus' Nov 28 12:39:24 learner dbus-daemon[9965]: Activating service name='org.gnome.Documents' Nov 28 12:39:24 learner dbus-daemon[9965]: Activating service name='org.gnome.Photos' Nov 28 12:39:24 learner dbus-daemon[9965]: Activating service name='org.gnome.Calculator.SearchProvider' Nov 28 12:39:24 learner dbus-daemon[9965]: Activating service name='org.gnome.Boxes.SearchProvider' Nov 28 12:39:24 learner dbus-daemon[9965]: Activating service name='org.gnome.clocks' Nov 28 12:39:24 learner dbus-daemon[9965]: Activating service name='org.gnome.Characters.BackgroundService' Nov 28 12:39:24 learner dbus-daemon[9965]: Successfully activated service 'org.gnome.Calculator.SearchProvider' Nov 28 12:39:24 learner dbus-daemon[9965]: Successfully activated service 'org.gnome.Nautilus' Nov 28 12:39:24 learner dbus-daemon[9965]: Successfully activated service 'org.gnome.Boxes.SearchProvider' Nov 28 12:39:24 learner dbus-daemon[9965]: Successfully activated service 'org.gnome.ControlCenter.SearchProvider' Nov 28 12:39:24 learner dbus-daemon[9965]: Successfully activated service 'org.gnome.clocks' Nov 28 12:39:24 learner dbus-daemon[9965]: Successfully activated service 'org.gnome.Characters.BackgroundService' Nov 28 12:39:24 learner dbus-daemon[9965]: Successfully activated service 'org.gnome.Photos' Nov 28 12:39:25 learner org.gnome.Nautilus[9965]: nautilus-wipe-Message: Initializing Nov 28 12:39:25 learner dbus-daemon[9965]: Successfully activated service 'org.gnome.Documents' Nov 28 12:39:25 learner org.gnome.Nautilus[9965]: sys:1: PyGIWarning: Nautilus was imported without specifying a version first. Use gi.require_version('Nautilus', '3.0') before import to ensure that the right version gets loaded. Nov 28 12:39:25 learner org.gnome.Nautilus[9965]: /usr/share/nautilus-python/extensions/nautilus-admin.py:18: PyGIWarning: GConf was imported without specifying a version first. Use gi.require_version('GConf', '2.0') before import to ensure that the right version gets loaded. Nov 28 12:39:25 learner org.gnome.Nautilus[9965]: from gi.repository import Nautilus, GObject, GConf, Gtk, GLib Nov 28 12:39:25 learner nautilus[3872]: [N-A] Nautilus-Actions Menu Extender 3.2.3 initializing... Nov 28 12:39:25 learner org.gnome.Nautilus[9965]: Socket: /run/user/1000/ownCloud/socket <=> /ownCloud/socket Nov 28 12:39:25 learner org.gnome.Nautilus[9965]: Socket File: /run/user/1000/ownCloud/socket Nov 28 12:39:25 learner org.gnome.Nautilus[9965]: Could not connect to unix socket.[Errno 2] No such file or directory Nov 28 12:39:25 learner org.gnome.Nautilus[9965]: Initializing nautilus-image-converter extension Nov 28 12:39:25 learner nautilus[3872]: [N-A] Nautilus-Actions Tracker 3.2.3 initializing... Nov 28 12:39:25 learner dbus-daemon[9965]: Activating service name='org.gnome.OnlineMiners.MediaServer' Nov 28 12:39:25 learner org.gnome.OnlineMiners.MediaServer[9965]: Gom-Message: Setting scheduler policy to SCHED_IDLE Nov 28 12:39:25 learner dbus-daemon[9965]: Successfully activated service 'org.gnome.OnlineMiners.MediaServer' Nov 28 12:39:25 learner dbus-daemon[9965]: Activating service name='org.gnome.OnlineMiners.GData' Nov 28 12:39:25 learner org.gnome.OnlineMiners.MediaServer[9965]: (gom-media-server-miner:3930): Gom-WARNING **: Unable to Call GetServers : GDBus.Error:org.freedesktop.DBus.Error.ServiceUnknown: The name com.intel.dleyna-server was not provided by any .service files Nov 28 12:39:25 learner org.gnome.OnlineMiners.GData[9965]: Gom-Message: Setting scheduler policy to SCHED_IDLE Nov 28 12:39:25 learner dbus-daemon[9965]: Successfully activated service 'org.gnome.OnlineMiners.GData' Nov 28 12:39:25 learner dbus-daemon[9965]: Activating service name='org.gnome.OnlineMiners.Flickr' Nov 28 12:39:25 learner org.gnome.OnlineMiners.Flickr[9965]: Gom-Message: Setting scheduler policy to SCHED_IDLE Nov 28 12:39:25 learner dbus-daemon[9965]: Successfully activated service 'org.gnome.OnlineMiners.Flickr' Nov 28 12:39:25 learner dbus-daemon[9965]: Activating service name='org.gnome.OnlineMiners.Facebook' Nov 28 12:39:25 learner org.gnome.OnlineMiners.Facebook[9965]: Gom-Message: Setting scheduler policy to SCHED_IDLE Nov 28 12:39:25 learner dbus-daemon[9965]: Successfully activated service 'org.gnome.OnlineMiners.Facebook' Nov 28 12:39:25 learner org.gnome.Photos[9965]: ** (gnome-photos:3879): WARNING **: Unable to fetch the list of available renderers: GDBus.Error:org.freedesktop.DBus.Error.ServiceUnknown: The name com.intel.dleyna-renderer was not provided by any .service files Nov 28 12:39:30 learner org.gnome.Photos[9965]: (gnome-photos:3879): GLib-GIO-CRITICAL **: g_file_new_for_path: assertion 'path != NULL' failed Nov 28 12:39:30 learner org.gnome.Photos[9965]: (gnome-photos:3879): GLib-GIO-CRITICAL **: g_file_icon_new: assertion 'G_IS_FILE (file)' failed Nov 28 12:39:37 learner org.gnome.Nautilus[9965]: Socket: /run/user/1000/ownCloud/socket <=> /ownCloud/socket Nov 28 12:39:37 learner org.gnome.Nautilus[9965]: Socket File: /run/user/1000/ownCloud/socket Nov 28 12:39:37 learner org.gnome.Nautilus[9965]: Could not connect to unix socket.[Errno 2] No such file or directory Nov 28 12:39:37 learner org.gnome.Nautilus[9965]: Socket: /run/user/1000/ownCloud/socket <=> /ownCloud/socket Nov 28 12:39:37 learner org.gnome.Nautilus[9965]: Socket File: /run/user/1000/ownCloud/socket Nov 28 12:39:37 learner org.gnome.Nautilus[9965]: Could not connect to unix socket.[Errno 2] No such file or directory So, it has nothing much to do with tracker, but rather GNOME's Ill interaction. On Sat, 2015-11-28 at 12:13 +0530, Ritesh Raj Sarraf wrote: > I think other should be able to reproduce, if: > > 1) Enable online accounts for Google, FB, Flickr etc > 2) Let it do some sync. > 3) Let Tracker index your data. This will also include your > {meta}data > from online account > 4) Try some searches. Both on the shell and `tracker search` > > > A properly written tool should not be blocking. In case of tracker, > it > is not so. I hope 1.7 has improvements. -- Ritesh Raj Sarraf RESEARCHUT - http://www.researchut.com "Necessity is the mother of invention."
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