?

Print the help message and exit.

-d

Deprecated in MDEX Engine 6.4.0. Start in debug mode.

-v

Verbose mode. Print information about each request to stdout.

--ancestor_counts

Compute counts for root dimension values. When the flag is omitted, the Dgraph only computes refinement counts for selected and available refinements but not root dimension values.

--back_compat <api-version>

Enable backwards compatibility, so that the Dgraph can communicate with previous versions of the Presentation API. In addition to the currently supported version of the Presentation API, the following previous versions are supported: 6.3.x, 6.2.x, 6.1.x, and 6.0.x. Therefore, the value for <api-version> must be one of the following:

--backlog-timeout <seconds>

Specify the wait limit (in seconds) for a query that has been read and queued for processing. This is the maximum number of seconds that a query is allowed to spend waiting in the processing queue before the Dgraph responds with a timeout message. The default value is 60 seconds.

--cmem <MB>

Specify the maximum memory usage in MB for the MDEX Engine main cache. When --cmem is not specified, the default value is 1024 MB (1GB), for Dgraph installations on 64-bit platforms.

--config <path>

Specify a configuration file to read on startup. The configuration file should contain arguments of the same format used on the command line (that is, it ignores whitespace, including newlines).

--disable_fast_aspell

Disable fast mode for the aspell spelling module. If you disable fast mode, it decreases the performance of the spelling correction, but may allow additional queries to be corrected.

When the fast mode is enabled, it can significantly speed up applications that use spelling correction features with the aspell module. The fast mode is used by default.

--disable_web_services

Deprecated in MDEX Engine 6.3.0. Suppress the automatic loading of XQuery modules at startup. Note that when web services are disables, all features that write to the dgraph will fails. This includes most Workbench features, such as thesaurus entries, business rules, stop words, and automatic processes.

--dym

Enable DYM (Did You Mean?) explicit query spelling suggestions for full-text search queries.

--dym_hthresh <thresh>

Specify the threshold number of hits at or above which DYM (Did You Mean?) suggestions will not be generated. The default is 20.

--dym_nsug <count>

Specify the maximum number of DYM (Did You Mean?) query suggestions to return for any query. The default is 1.

--dym_sthresh <thresh>

Specify the threshold spelling correction score for words used by the DYM (Did You Mean?) engine. The default is 175.

--dynrank_consider_collapsed

Use this flag to force the MDEX Engine to consider intermediate collapsible dimension values as candidates for dynamic ranking.

This flag alters the default behavior of the MDEX Engine when dynamically ranking dimensions with collapsible dimension values. By default (without this flag specified), the MDEX Engine considers only leaf dimension values for dynamic ranking, removing all intermediate dimension hierarchy from consideration.

With the default behavior, when a hierarchical dimension's mid-level values (all except the root and leaf values) are configured as collapsible in Developer Studio, and when the dimension is also set to use dynamic refinement ranking, the dimension collapses and displays only leaf values for all navigation queries. The mid-level dimension values are never displayed regardless of the number of leaf values present in the navigation state.

If you would like the MDEX Engine to consider intermediate dimension values (that are configured as collapsible) for dynamic ranking, use this flag.

--esampmin <num>

Specify the minimum number of records to sample during refinement computation. The default is 0. Tuning recommendations:

--failedupdatedir <dir>

Specify the directory into which the MDEX Engine should save the failed update files.

The default directory that the MDEX Engine uses for storing the failed update files is <updatedir>/failed_updates/.

--help

Print the help message and exit.

--lang <lang-id>-u-<collation>

Indexes partial updates and processes queries as being in the language specified by <lang-id>, and the flag also specifies an optional collation order for search results in the <collation> portion of the argument.

If unspecified, the default value is inherited from the Dgidx --lang flag, and if the flag is not specified for either Dgidx or the Dgraph, then the default for <lang-id> is en (US English). For details about using international languages, see the MDEX Engine Developer's Guide.

--log <path>

Specify the path for the Dgraph request log file. The default log file is named dgraph.reqlog.

--log_stats <path>

Specify the path and filename for the EQL (Endeca Query Language) statistics log. By default, this log is turned off; specifying this flag activates logging of statistics for EQL requests.

--log_stats_thresh <value>

Set the threshold above which statistics information for an Endeca Query Language request will be logged. The value is specified in milliseconds (1000 milliseconds = 1 second). The value can also be specified in seconds by adding a trailing s to the number, such as 1s for 1 second. The default is 60000 milliseconds (1 minute). Note that this flag is dependent on the --log_stats flag being used.

--mergepolicy <policy>

Set the default merge policy of the MDEX Engine for partial updates. The value for <policy> must be either balanced or aggressive. If this flag is not used, balanced will be the default merge policy.

--net-timeout

Specify the maximum number of seconds the Dgraph waits for the client to download data from queries across the network. The default network timeout value is 30 seconds.

--nomrf

Disable filtering for dynamic business rules.

--out <stdout/stderr file>

Specify file path to which stdout/stderr should be remapped (the default is to use default stdout/stderr for the process).

Running the Dgraph in an Oracle Endeca Application Controller environment creates a default file named dgraph-S0-R0.out.

--persistdir

Direct the Dgraph audit persistence file to a directory of your choice. By default, the file is written to a directory called persist that is located in the application’s working directory. For details about the audit persistence file, see the Endeca Performance Tuning Guide.

Important: Use the --persistdir flag only when you first start the Dgraph. Do not move or rename this directory after it has been created.

--phrase_max <num>

Specify the maximum number of words in each phrase for text search. The default number is 10. If the maximum number of words in a phrase is exceeded, the phrase is truncated to the maximum word count and a warning is logged.

--pidfile <pidfile-path>

Specify the file to which to write the process ID (pid). If unspecified, the default name of the pid file depends on how the Dgraph starts.

Running the Dgraph in an EAC environment or from the command line creates a file named dgraph.pid.

--port <num>

Specify the port to use in server (non-interactive) mode. The default is 5555.

--search_max <num>

Specify the maximum number of terms for text search. Default is 10.

--snip_cutoff <num>

Limit the number of words in a property that the MDEX Engine evaluates to identify the snippet. If a match is not found within <num> words, the MDEX Engine does not return a snippet, even if a match occurs later in the property value.

If the flag is not specified, or <num> is not specified, the default is 500.

--snip_disable

Globally disable snippeting.

--spellpath <path>

Specify location of spelling data files. Parameter should be a full path to a directory containing the needed aspell support files for spelling correction features (see the --dym and --spl options). Note that this path must be an absolute path (relative paths are not supported). In addition, this is a path to a directory containing at least the generic pspell/aspell support files. This does not need to be the same as the location of the .spelldat file for the indexed data set. The Dgraph typically requires write permissions in this directory, unless a correct or writable .pwli file is already available in this directory.

--spell_bdgt <num>

Set maximum number of variants considered for spelling and DYM (Did You Mean?) correction (the default is 32).

--spell_nobrk

Disable word-break analysis in the suggestion engine. Normally, in addition to considering spelling corrections, the suggestion engine considers alternate word separation points for the query to generate suggestions for DYM (Did You Mean?) and auto-correct.

--spl

Enable auto-suggest spelling corrections for record (full text) and dimension search.

--spl_hthresh <thresh>

Specify the minimum number of hits at or above which auto-correct suggestions will not be generated. The default is 1, meaning that if there are one or more hits for a user’s search, then auto-correct does not provide spelling suggestions. Stated differently, if you use the default of 1 and there are zero (0) hits for a user’s search, then spelling auto-correct does engage and provides suggestions for alternate keyword spellings.

--spl_nsug <count>

Specify the maximum number of auto-correct suggestions to return. The default is 1.

--spl_sthresh <thresh>

Specify the threshold spelling correction score for words used as auto-correct suggestions. The default is 125.

--sslcertfile <certfile-path>

Specify the path of the eneCert.pem certificate file that will be used by the Dgraph to present to any client for SSL communications. Using this flag provides the certificate which the MDEX Engine presents to the client for SSL; this option also forces HTTPS connections rather than HTTP. If not given, SSL is not enabled for Dgraph communications.

--sslcafile <CA-certfile-path>

Specify the path of the eneCA.pem Certificate Authority file that the Dgraph will use to authenticate SSL communications with other Endeca components. This flag defines the Certificate Authority file the MDEX Engine uses to validate client connections for mutual authentication purposes. If not given, SSL mutual authentication is not performed.

--sslcipher <cipher-list>

Specify one or more cryptographic algorithms, one of which Dgraph will use during the SSL negotiation. If you omit this setting, the Dgraph chooses a cryptographic algorithm from its internal list of algorithms. See the Endeca Commerce Security Guide for more information

--stat-all

Enable all available dynamic dimension value attributes. Note that this option has performance implications and is not intended for production use.

--stat-abins

Enable refinement counts for aggregated records. A refinement count is the number of records that would be in the result set if you were to refine on a dimension value. An aggregated record is a record that represents several records that are rolled up into a single record for display purposes.

If you use this flag, the refinement counts reflect how many aggregated records the MDEX Engine would return in a result set if you were to refine on a dimension value.

In general, the MDEX Engine calculates refinement counts as follows:

--syslog

Direct all output to syslog.

--thesaurus_cutoff <limit>

Set a limit on the number of words in a user’s search query that are subject to thesaurus replacement.

The default value of <limit> is 3. This means that up to 3 words in a user’s search query can be replaced with thesaurus entries. If there are more terms in the query that match thesaurus entries, none of the words are thesaurus expanded.

This option is intended as a performance guard against very expensive thesaurus queries. Lower values improve thesaurus engine performance.

--thesaurus_multiword_nostem

Specify that words in a multiple-word thesaurus form should be treated like phrases and should not be stemmed, which increases performance for some query loads. Single-word terms will be subject to stemming regardless of whether this flag is specified.

This flag prevents the Dgraph from expanding multi-word thesaurus forms by stemming. Thesaurus entries continue to match any stemmed form in the query, but multi-word expansions only include explicitly listed forms. To get the multi-word stemmed thesaurus expansions, the various forms must be listed explicitly in the thesaurus.

--threads <num>

Specify the number of threads in the MDEX Engine threading pool. The value of <num> must be a positive integer (that is, 1 or greater).

The default for <num> is 2.

The recommended number of threads for the MDEX Engine is typically equal to the number of cores on the MDEX Engine server.

Additional threads are also started to perform internal maintenance tasks that are less CPU-intensive and do not affect query processing or updates (their number cannot be controlled).

--tmpdir <dir>

Specify the path to a temporary directory to be used to hold temporary files (the default is the base directory of db_prefix).

--unctrct

Specify to the Dgraph not to compute implicit dimensions, and to only compute and present explicitly specified dimensions, when displaying refinements in navigation results. Specifying this flag does not reduce the size of the resulting record set that is being displayed; however, it improves run-time performance of the MDEX Engine.

Be aware that if you use this flag, in order to receive meaningful navigation refinements, you need to make top-level precedence rules work for ALL outbound queries.

--updatedir <dir>

Specify the directory into which completed partial update files will be placed. Partial update files are also read from this directory.

--updatelog

Specify the file for update-related log messages. If unspecified, the default name of the update file depends on how the Dgraph starts. Running the Dgraph in a Control System environment (deprecated) or from the command line creates a default named dgraph.updatelog. Running the Dgraph in an Endeca Application Manager environment creates a default named dgraph-S0-R0-update.log.

--updateverbose

Show verbose messages while processing updates.

--version

Print version information and exit.

--warmupseconds <seconds>

Specify a duration for post-update cache warming (in seconds).

--wb_maxbrks

In word-break analysis, specify the maximum number of breaks to insert or remove per query. The default is 1.

--wb_minbrklen

In word-break analysis, specify the minimum length of a new word-break term. The default is 2.

--wb_noibrk

In word-break analysis, disable word-break insertion analysis.

--wb_norbrk

In word-break analysis, disable word-break removal analysis.

--wildcard_max <count>

Specify the maximum number of terms that can match a wildcard term in a wildcard query that contains punctuation, such as ab*c.def*. The default is 100.

--whymatch

Deprecated in MDEX Engine 6.2.0. Enable computation of "Why Did It Match" dynamic record attributes returned as results of full-text search queries. These dynamic attributes contain a copy of the property/dimension key and value that caused the match, along with query interpretation notes (spelling, thesaurus, and so on).

--whymatchConcise

Deprecated in MDEX Engine 6.2.0. Similar to --whymatch, but produces more concise dynamic attribute values containing only the property/dimension key and query interpretation notes. This is useful when the property value might include large amounts of text, such as document contents.

--wordinterp

Enable computation of word interpretation dynamic supplement (or see-also) objects, which report on alternate forms of user query terms considered by the text search engine while processing full-text (record) search requests.

--xquery_fndoc <mode>

Deprecated in MDEX Engine 6.3.0. Specifies the handling of the fn:doc() function within XQuery. The following three values are supported:

--xquery_path <path>

Deprecated in MDEX Engine 6.3.0.Specify the directory in which XQuery Web service resources are located. XQuery main modules and WSDL files are loaded from this directory. Library modules are loaded from the lib subdirectory. If not specified, a user XQuery path is not used.