NAME
tracker-store - database indexer and query daemon
SYNOPSIS
tracker-store [OPTION...]
DESCRIPTION
tracker-store provides both a powerful database daemon which allows
clients to query or update their data using the highly descriptive
SPARQL language.
tracker-store does not do any file crawling or any mining of data
itself, instead other processes do that and serves as a daemon waiting
for such requests from application miners like tracker-miner-fs.
For help on how to configure this daemon, see the man page for tracker-
store.cfg.
OPTIONS
-?, --help
A brief help message including some examples.
-V, --version
Returns the version of this binary.
-v, --verbosity={0|1|2|3}
Sets the logging level, 0=errors, 1=minimal, 2=detailed,
3=debug.
-r, --force-reindex
This forces tracker-store to remove databases and to recreate
fresh databases ready for data insertion from the miners. For
more information about the miners, see tracker-miner-fs.
-m, --low-memory
This changes the behavior of the database manager and some other
parts of tracker-store to be optimized for lower memory systems
by lowering database connection cache sizes and page sizes for
example. This may slow down indexing performance.
-n, --readonly-mode
This starts tracker-store in a mode which disables writing to
the database. Only SPARQL read requests can be serviced if this
option is used.
ENVIRONMENT
TRACKER_DB_SQL_DIR
This is the directory which tracker uses to load the .sql files
from. These are needed on each invocation of tracker-store. If
unset it will default to the correct place. This is used mainly
for testing purposes.
TRACKER_DB_ONTOLOGIES_DIR
This is the directory which tracker uses to load the .ontology
files from. If unset it will default to the correct place. This
is used mainly for testing purposes.
TRACKER_LANGUAGE_STOP_WORDS_DIR
This is the directory which tracker uses to load the stop words
dictionaries from. If unset it will default to the correct
place. This is used mainly for testing purposes.
TRACKER_STORE_MAX_TASK_TIME
This is maximum time allowed for a process to finish before
interruption happens. The actual moment of interruption depends
also on the frequency of checks. The value 0 indicates no
interruption. This environment variable is used mainly for
testing purposes.
TRACKER_STORE_SELECT_CACHE_SIZE / TRACKER_STORE_UPDATE_CACHE_SIZE
Tracker caches database statements which occur frequently to
make subsequent repeat queries much faster. The cache size is
set to 100 by default for each type (select and update queries).
This must be at least 2 as a minimum, any less and a value of 3
is used instead. The number represents the number of cached
statements to keep around. This environment variable is used
mainly for testing purposes.
TRACKER_PRAGMAS_FILE
Tracker has a fixed set of PRAGMA settings for creating its
SQLite connection. With this environment variable pointing to a
text file you can override these settings. The file is a
separated list of SQLite queries to execute on any newly created
SQLite connection in tracker-store.
TRACKER_DISABLE_MEEGOTOUCH_LOCALE
If Tracker is compiled with meegotouch locale management
support, setting this variable in the environment will disable
retrieving the locale from GConf, and the standard locale
settings will be used instead.
FILES
$HOME/.config/tracker/tracker-store.cfg $HOME/.config/tracker/tracker-
fts.cfg
NOTES
tracker-store is highly bound to the D-Bus freedesktop project. A D-Bus
session is needed for all Tracker processes to communicate between each
other. D-Bus is our acting IPC. See dbus-daemon(1) for more
information.
SEE ALSO
tracker-applet(1), tracker-search-tool(1), tracker-search(1), tracker-
tag(1), tracker-stats(1), tracker-services(1), tracker-info(1),
tracker-control(1),
tracker-store.cfg(5), tracker-fts.cfg(5).
http://www.w3.org/TR/rdf-sparql-query/
dbus-daemon(1),
http://www.freedesktop.org/wiki/Software/dbus