[/map {"- map/map "}) [/map/topicref {"- map/topicref "}) [/map/topicref/topicmeta {"- map/topicmeta "}) [/map/topicref/topicmeta/navtitle {"- topic/navtitle "}) Dgraph Administrative Tasks (navtitle][/map/topicref/topicmeta/linktext {"- map/linktext "}) Dgraph Administrative Tasks (linktext][/map/topicref/topicmeta/shortdesc {"- map/shortdesc "}) This section describes the Dgraph flags, and the administrative operations for the Dgraph process. It also describes the Dgraph index merge policy and managing the Dgraph core dump files. (shortdesc] (topicmeta][/map/topicref/topicref {"- map/topicref "}) [/map/topicref/topicref/topicmeta {"- map/topicmeta "}) [/map/topicref/topicref/topicmeta/navtitle {"- topic/navtitle "}) Dgraph flags (navtitle][/map/topicref/topicref/topicmeta/linktext {"- map/linktext "}) Dgraph flags (linktext][/map/topicref/topicref/topicmeta/shortdesc {"- map/shortdesc "}) The Oracle Endeca Server starts the Dgraph process for each data domain node in the data domain cluster. (shortdesc] (topicmeta] (topicref][/map/topicref/topicref {"- map/topicref "}) [/map/topicref/topicref/topicmeta {"- map/topicmeta "}) [/map/topicref/topicref/topicmeta/navtitle {"- topic/navtitle "}) Administrative operations for the Dgraph (navtitle][/map/topicref/topicref/topicmeta/linktext {"- map/linktext "}) Administrative operations for the Dgraph (linktext][/map/topicref/topicref/topicmeta/shortdesc {"- map/shortdesc "}) Use administrative operations to check Dgraph statistics, enable or disable diagnostic flags, without having to stop a running Dgraph. This section lists the supported administrative URLs, describes the functions of each URL, and defines the syntax of those URLs. (shortdesc] (topicmeta][/map/topicref/topicref/topicref {"- map/topicref "}) [/map/topicref/topicref/topicref/topicmeta {"- map/topicmeta "}) [/map/topicref/topicref/topicref/topicmeta/navtitle {"- topic/navtitle "}) Syntax of administrative operations (navtitle][/map/topicref/topicref/topicref/topicmeta/linktext {"- map/linktext "}) Syntax of administrative operations (linktext][/map/topicref/topicref/topicref/topicmeta/shortdesc {"- map/shortdesc "}) Administrative operations utilize the following syntax. (shortdesc] (topicmeta] (topicref][/map/topicref/topicref/topicref {"- map/topicref "}) [/map/topicref/topicref/topicref/topicmeta {"- map/topicmeta "}) [/map/topicref/topicref/topicref/topicmeta/navtitle {"- topic/navtitle "}) List of administrative operations (navtitle][/map/topicref/topicref/topicref/topicmeta/linktext {"- map/linktext "}) List of administrative operations (linktext][/map/topicref/topicref/topicref/topicmeta/shortdesc {"- map/shortdesc "}) Administrative (or admin) operations listed in this topic allow you to control the behavior of the Dgraph processes in a data domain. (shortdesc] (topicmeta] (topicref][/map/topicref/topicref/topicref {"- map/topicref "}) [/map/topicref/topicref/topicref/topicmeta {"- map/topicmeta "}) [/map/topicref/topicref/topicref/topicmeta/navtitle {"- topic/navtitle "}) help (navtitle][/map/topicref/topicref/topicref/topicmeta/linktext {"- map/linktext "}) help (linktext][/map/topicref/topicref/topicref/topicmeta/shortdesc {"- map/shortdesc "}) /admin/datadomain?op=help returns the usage page for all of the administrative operations. (shortdesc] (topicmeta] (topicref][/map/topicref/topicref/topicref {"- map/topicref "}) [/map/topicref/topicref/topicref/topicmeta {"- map/topicmeta "}) [/map/topicref/topicref/topicref/topicmeta/navtitle {"- topic/navtitle "}) flush (navtitle][/map/topicref/topicref/topicref/topicmeta/linktext {"- map/linktext "}) flush (linktext][/map/topicref/topicref/topicref/topicmeta/shortdesc {"- map/shortdesc "}) /admin/datadomain?op=flush flushes the Dgraph cache. (shortdesc] (topicmeta] (topicref][/map/topicref/topicref/topicref {"- map/topicref "}) [/map/topicref/topicref/topicref/topicmeta {"- map/topicmeta "}) [/map/topicref/topicref/topicref/topicmeta/navtitle {"- topic/navtitle "}) logroll (navtitle][/map/topicref/topicref/topicref/topicmeta/linktext {"- map/linktext "}) logroll (linktext][/map/topicref/topicref/topicref/topicmeta/shortdesc {"- map/shortdesc "}) /admin/datadomain?op=logroll forces a query log roll. (shortdesc] (topicmeta] (topicref][/map/topicref/topicref/topicref {"- map/topicref "}) [/map/topicref/topicref/topicref/topicmeta {"- map/topicmeta "}) [/map/topicref/topicref/topicref/topicmeta/navtitle {"- topic/navtitle "}) merge (navtitle][/map/topicref/topicref/topicref/topicmeta/linktext {"- map/linktext "}) merge (linktext][/map/topicref/topicref/topicref/topicmeta/shortdesc {"- map/shortdesc "}) /admin/datadomain?op=merge forces a merge, and (optionally) changes the merge policy of a running Dgraph. In a data domain cluster of Dgraph nodes, this command is routed to the leader node of the data domain cluster where it is processed. (shortdesc] (topicmeta] (topicref][/map/topicref/topicref/topicref {"- map/topicref "}) [/map/topicref/topicref/topicref/topicmeta {"- map/topicmeta "}) [/map/topicref/topicref/topicref/topicmeta/navtitle {"- topic/navtitle "}) ping (navtitle][/map/topicref/topicref/topicref/topicmeta/linktext {"- map/linktext "}) ping (linktext][/map/topicref/topicref/topicref/topicmeta/shortdesc {"- map/shortdesc "}) /admin/datadomain?op=ping checks the aliveness of a Dgraph and returns a lightweight message. (shortdesc] (topicmeta] (topicref][/map/topicref/topicref/topicref {"- map/topicref "}) [/map/topicref/topicref/topicref/topicmeta {"- map/topicmeta "}) [/map/topicref/topicref/topicref/topicmeta/navtitle {"- topic/navtitle "}) stats (navtitle][/map/topicref/topicref/topicref/topicmeta/linktext {"- map/linktext "}) stats (linktext][/map/topicref/topicref/topicref/topicmeta/shortdesc {"- map/shortdesc "}) /admin/datadomain?op=stats returns the Dgraph Sever Statistics page. Note that this page is intended for use by Oracle Endeca Support only. (shortdesc] (topicmeta] (topicref][/map/topicref/topicref/topicref {"- map/topicref "}) [/map/topicref/topicref/topicref/topicmeta {"- map/topicmeta "}) [/map/topicref/topicref/topicref/topicmeta/navtitle {"- topic/navtitle "}) statsreset (navtitle][/map/topicref/topicref/topicref/topicmeta/linktext {"- map/linktext "}) statsreset (linktext][/map/topicref/topicref/topicref/topicmeta/shortdesc {"- map/shortdesc "}) /admin/datadomain?op=statsreset resets the Dgraph Server Statistics page. (shortdesc] (topicmeta] (topicref] (topicref][/map/topicref/topicref {"- map/topicref "}) [/map/topicref/topicref/topicmeta {"- map/topicmeta "}) [/map/topicref/topicref/topicmeta/navtitle {"- topic/navtitle "}) Managing the index merge policy for the data domain (navtitle][/map/topicref/topicref/topicmeta/linktext {"- map/linktext "}) Managing the index merge policy for the data domain (linktext][/map/topicref/topicref/topicmeta/shortdesc {"- map/shortdesc "}) This section describes how to set and manage a merge policy for each Endeca data domain. (shortdesc] (topicmeta][/map/topicref/topicref/topicref {"- map/topicref "}) [/map/topicref/topicref/topicref/topicmeta {"- map/topicmeta "}) [/map/topicref/topicref/topicref/topicmeta/navtitle {"- topic/navtitle "}) Using a merge policy for incremental index updates (navtitle][/map/topicref/topicref/topicref/topicmeta/linktext {"- map/linktext "}) Using a merge policy for incremental index updates (linktext][/map/topicref/topicref/topicref/topicmeta/shortdesc {"- map/shortdesc "}) A merge policy determines how frequently the Dgraph process of the Endeca data domain merges incremental update generations in its index files, for a specific data domain. (shortdesc] (topicmeta] (topicref][/map/topicref/topicref/topicref {"- map/topicref "}) [/map/topicref/topicref/topicref/topicmeta {"- map/topicmeta "}) [/map/topicref/topicref/topicref/topicmeta/navtitle {"- topic/navtitle "}) Types of merge policies (navtitle][/map/topicref/topicref/topicref/topicmeta/linktext {"- map/linktext "}) Types of merge policies (linktext][/map/topicref/topicref/topicref/topicmeta/shortdesc {"- map/shortdesc "}) You can set the merge policy to one of two settings: balanced or aggressive. (shortdesc] (topicmeta] (topicref][/map/topicref/topicref/topicref {"- map/topicref "}) [/map/topicref/topicref/topicref/topicmeta {"- map/topicmeta "}) [/map/topicref/topicref/topicref/topicmeta/navtitle {"- topic/navtitle "}) Setting the merge policy (navtitle][/map/topicref/topicref/topicref/topicmeta/linktext {"- map/linktext "}) Setting the merge policy (linktext][/map/topicref/topicref/topicref/topicmeta/shortdesc {"- map/shortdesc "}) You can programmatically set the merge policy for the data domain by updating the Global Configuration Record. (shortdesc] (topicmeta] (topicref][/map/topicref/topicref/topicref {"- map/topicref "}) [/map/topicref/topicref/topicref/topicmeta {"- map/topicmeta "}) [/map/topicref/topicref/topicref/topicmeta/navtitle {"- topic/navtitle "}) Retrieving the merge policy (navtitle][/map/topicref/topicref/topicref/topicmeta/linktext {"- map/linktext "}) Retrieving the merge policy (linktext][/map/topicref/topicref/topicref/topicmeta/shortdesc {"- map/shortdesc "}) You can retrieve the Global Configuration Record to see the current setting for the merge policy. (shortdesc] (topicmeta] (topicref][/map/topicref/topicref/topicref {"- map/topicref "}) [/map/topicref/topicref/topicref/topicmeta {"- map/topicmeta "}) [/map/topicref/topicref/topicref/topicmeta/navtitle {"- topic/navtitle "}) Changing the merge policy (navtitle][/map/topicref/topicref/topicref/topicmeta/linktext {"- map/linktext "}) Changing the merge policy (linktext][/map/topicref/topicref/topicref/topicmeta/shortdesc {"- map/shortdesc "}) The URL /admin/dataDomainName?op=merge command can be used to change the merge policy of a running Endeca data domain. (shortdesc] (topicmeta] (topicref][/map/topicref/topicref/topicref {"- map/topicref "}) [/map/topicref/topicref/topicref/topicmeta {"- map/topicmeta "}) [/map/topicref/topicref/topicref/topicmeta/navtitle {"- topic/navtitle "}) Forcing a merge (navtitle][/map/topicref/topicref/topicref/topicmeta/linktext {"- map/linktext "}) Forcing a merge (linktext][/map/topicref/topicref/topicref/topicmeta/shortdesc {"- map/shortdesc "}) The URL /admin/dataDomainName?op=merge command can also be used to force a merge. (shortdesc] (topicmeta] (topicref][/map/topicref/topicref/topicref {"- map/topicref "}) [/map/topicref/topicref/topicref/topicmeta {"- map/topicmeta "}) [/map/topicref/topicref/topicref/topicmeta/navtitle {"- topic/navtitle "}) Linux unlimit settings for merges (navtitle][/map/topicref/topicref/topicref/topicmeta/linktext {"- map/linktext "}) Linux unlimit settings for merges (linktext][/map/topicref/topicref/topicref/topicmeta/shortdesc {"- map/shortdesc "}) For purposes of generation merging, it is recommended that you set the ulimit -v and -m parameters to unlimited. (shortdesc] (topicmeta] (topicref] (topicref][/map/topicref/topicref {"- map/topicref "}) [/map/topicref/topicref/topicmeta {"- map/topicmeta "}) [/map/topicref/topicref/topicmeta/navtitle {"- topic/navtitle "}) Managing Dgraph core dump files (navtitle][/map/topicref/topicref/topicmeta/linktext {"- map/linktext "}) Managing Dgraph core dump files (linktext][/map/topicref/topicref/topicmeta/shortdesc {"- map/shortdesc "}) In the rare case of a Dgraph crash, the Dgraph writes its core dump files on disk. (shortdesc] (topicmeta][/map/topicref/topicref/topicref {"- map/topicref "}) [/map/topicref/topicref/topicref/topicmeta {"- map/topicmeta "}) [/map/topicref/topicref/topicref/topicmeta/navtitle {"- topic/navtitle "}) Managing Dgraph crash dump files on Windows (navtitle][/map/topicref/topicref/topicref/topicmeta/linktext {"- map/linktext "}) Managing Dgraph crash dump files on Windows (linktext][/map/topicref/topicref/topicref/topicmeta/shortdesc {"- map/shortdesc "}) On Windows, all Dgraph crash dump files are saved on disk by default. (shortdesc] (topicmeta] (topicref][/map/topicref/topicref/topicref {"- map/topicref "}) [/map/topicref/topicref/topicref/topicmeta {"- map/topicmeta "}) [/map/topicref/topicref/topicref/topicmeta/navtitle {"- topic/navtitle "}) Managing Dgraph core dump files on Linux (navtitle][/map/topicref/topicref/topicref/topicmeta/linktext {"- map/linktext "}) Managing Dgraph core dump files on Linux (linktext][/map/topicref/topicref/topicref/topicmeta/shortdesc {"- map/shortdesc "}) It is recommended to use the ulimit -c unlimited setting for the Dgraph process core dump files. Non-limited core files contain all Dgraph data that is resident in memory (RSS of the Dgraph process). (shortdesc] (topicmeta] (topicref] (topicref] (topicref] [/map/reltable {"- map/reltable "}) [/map/reltable/relheader {"- map/relheader "}) [/map/reltable/relheader/relcolspec {"- map/relcolspec "}) (relcolspec][/map/reltable/relheader/relcolspec {"- map/relcolspec "}) (relcolspec] (relheader] [/map/reltable/relrow {"- map/relrow "}) [/map/reltable/relrow/relcell {"- map/relcell "}) [/map/reltable/relrow/relcell/topicref {"- map/topicref "}) [/map/reltable/relrow/relcell/topicref/topicmeta {"- map/topicmeta "}) [/map/reltable/relrow/relcell/topicref/topicmeta/navtitle {"- topic/navtitle "}) List of administrative operations (navtitle][/map/reltable/relrow/relcell/topicref/topicmeta/linktext {"- map/linktext "}) List of administrative operations (linktext][/map/reltable/relrow/relcell/topicref/topicmeta/shortdesc {"- map/shortdesc "}) Administrative (or admin) operations listed in this topic allow you to control the behavior of the Dgraph processes in a data domain. (shortdesc] (topicmeta] (topicref] (relcell][/map/reltable/relrow/relcell {"- map/relcell "}) [/map/reltable/relrow/relcell/topicref {"- map/topicref "}) [/map/reltable/relrow/relcell/topicref/topicmeta {"- map/topicmeta "}) [/map/reltable/relrow/relcell/topicref/topicmeta/navtitle {"- topic/navtitle "}) help (navtitle][/map/reltable/relrow/relcell/topicref/topicmeta/linktext {"- map/linktext "}) help (linktext][/map/reltable/relrow/relcell/topicref/topicmeta/shortdesc {"- map/shortdesc "}) /admin/datadomain?op=help returns the usage page for all of the administrative operations. (shortdesc] (topicmeta] (topicref] [/map/reltable/relrow/relcell/topicref {"- map/topicref "}) [/map/reltable/relrow/relcell/topicref/topicmeta {"- map/topicmeta "}) [/map/reltable/relrow/relcell/topicref/topicmeta/navtitle {"- topic/navtitle "}) flush (navtitle][/map/reltable/relrow/relcell/topicref/topicmeta/linktext {"- map/linktext "}) flush (linktext][/map/reltable/relrow/relcell/topicref/topicmeta/shortdesc {"- map/shortdesc "}) /admin/datadomain?op=flush flushes the Dgraph cache. (shortdesc] (topicmeta] (topicref] [/map/reltable/relrow/relcell/topicref {"- map/topicref "}) [/map/reltable/relrow/relcell/topicref/topicmeta {"- map/topicmeta "}) [/map/reltable/relrow/relcell/topicref/topicmeta/navtitle {"- topic/navtitle "}) logroll (navtitle][/map/reltable/relrow/relcell/topicref/topicmeta/linktext {"- map/linktext "}) logroll (linktext][/map/reltable/relrow/relcell/topicref/topicmeta/shortdesc {"- map/shortdesc "}) /admin/datadomain?op=logroll forces a query log roll. (shortdesc] (topicmeta] (topicref] [/map/reltable/relrow/relcell/topicref {"- map/topicref "}) [/map/reltable/relrow/relcell/topicref/topicmeta {"- map/topicmeta "}) [/map/reltable/relrow/relcell/topicref/topicmeta/navtitle {"- topic/navtitle "}) merge (navtitle][/map/reltable/relrow/relcell/topicref/topicmeta/linktext {"- map/linktext "}) merge (linktext][/map/reltable/relrow/relcell/topicref/topicmeta/shortdesc {"- map/shortdesc "}) /admin/datadomain?op=merge forces a merge, and (optionally) changes the merge policy of a running Dgraph. In a data domain cluster of Dgraph nodes, this command is routed to the leader node of the data domain cluster where it is processed. (shortdesc] (topicmeta] (topicref] [/map/reltable/relrow/relcell/topicref {"- map/topicref "}) [/map/reltable/relrow/relcell/topicref/topicmeta {"- map/topicmeta "}) [/map/reltable/relrow/relcell/topicref/topicmeta/navtitle {"- topic/navtitle "}) ping (navtitle][/map/reltable/relrow/relcell/topicref/topicmeta/linktext {"- map/linktext "}) ping (linktext][/map/reltable/relrow/relcell/topicref/topicmeta/shortdesc {"- map/shortdesc "}) /admin/datadomain?op=ping checks the aliveness of a Dgraph and returns a lightweight message. (shortdesc] (topicmeta] (topicref] [/map/reltable/relrow/relcell/topicref {"- map/topicref "}) [/map/reltable/relrow/relcell/topicref/topicmeta {"- map/topicmeta "}) [/map/reltable/relrow/relcell/topicref/topicmeta/navtitle {"- topic/navtitle "}) stats (navtitle][/map/reltable/relrow/relcell/topicref/topicmeta/linktext {"- map/linktext "}) stats (linktext][/map/reltable/relrow/relcell/topicref/topicmeta/shortdesc {"- map/shortdesc "}) /admin/datadomain?op=stats returns the Dgraph Sever Statistics page. Note that this page is intended for use by Oracle Endeca Support only. (shortdesc] (topicmeta] (topicref] [/map/reltable/relrow/relcell/topicref {"- map/topicref "}) [/map/reltable/relrow/relcell/topicref/topicmeta {"- map/topicmeta "}) [/map/reltable/relrow/relcell/topicref/topicmeta/navtitle {"- topic/navtitle "}) statsreset (navtitle][/map/reltable/relrow/relcell/topicref/topicmeta/linktext {"- map/linktext "}) statsreset (linktext][/map/reltable/relrow/relcell/topicref/topicmeta/shortdesc {"- map/shortdesc "}) /admin/datadomain?op=statsreset resets the Dgraph Server Statistics page. (shortdesc] (topicmeta] (topicref] (relcell] (relrow] [/map/reltable/relrow {"- map/relrow "}) [/map/reltable/relrow/relcell {"- map/relcell "}) [/map/reltable/relrow/relcell/topicref {"- map/topicref "}) [/map/reltable/relrow/relcell/topicref/topicmeta {"- map/topicmeta "}) [/map/reltable/relrow/relcell/topicref/topicmeta/navtitle {"- topic/navtitle "}) merge (navtitle][/map/reltable/relrow/relcell/topicref/topicmeta/linktext {"- map/linktext "}) merge (linktext][/map/reltable/relrow/relcell/topicref/topicmeta/shortdesc {"- map/shortdesc "}) /admin/datadomain?op=merge forces a merge, and (optionally) changes the merge policy of a running Dgraph. In a data domain cluster of Dgraph nodes, this command is routed to the leader node of the data domain cluster where it is processed. (shortdesc] (topicmeta] (topicref] (relcell][/map/reltable/relrow/relcell {"- map/relcell "}) [/map/reltable/relrow/relcell/topicref {"- map/topicref "}) [/map/reltable/relrow/relcell/topicref/topicmeta {"- map/topicmeta "}) [/map/reltable/relrow/relcell/topicref/topicmeta/navtitle {"- topic/navtitle "}) Managing the index merge policy for the data domain (navtitle][/map/reltable/relrow/relcell/topicref/topicmeta/linktext {"- map/linktext "}) Managing the index merge policy for the data domain (linktext][/map/reltable/relrow/relcell/topicref/topicmeta/shortdesc {"- map/shortdesc "}) This section describes how to set and manage a merge policy for each Endeca data domain. (shortdesc] (topicmeta] (topicref] (relcell] (relrow] (reltable] (map]