mirror of https://github.com/apache/lucene.git
726 lines
35 KiB
Plaintext
726 lines
35 KiB
Plaintext
Apache Solr Version 1.3-dev
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Release Notes
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Introduction
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------------
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Apache Solr is an open source enterprise search server based on the Lucene Java
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search library, with XML/HTTP and JSON APIs, hit highlighting, faceted search,
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caching, replication, and a web administration interface. It runs in a Java
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servlet container such as Tomcat.
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See http://lucene.apache.org/solr for more information.
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Getting Started
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---------------
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You need a Java 1.5 VM or later installed.
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In this release, there is an example Solr server including a bundled
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servlet container in the directory named "example".
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See the tutorial at http://lucene.apache.org/solr/tutorial.html
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$Id$
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================== Release 1.3-dev ==================
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Upgrading from Solr 1.2
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-----------------------
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Detailed Change List
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--------------------
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New Features
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1. SOLR-69: Adding MoreLikeThisHandler to search for similar documents using
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lucene contrib/queries MoreLikeThis. MoreLikeThis is also available from
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the StandardRequestHandler using ?mlt=true. (bdelacretaz, ryan)
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2. SOLR-253: Adding KeepWordFilter and KeepWordFilterFactory. A TokenFilter
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that keeps tokens with text in the registered keeplist. This behaves like
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the inverse of StopFilter. (ryan)
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3. SOLR-257: WordDelimiterFilter has a new parameter splitOnCaseChange,
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which can be set to 0 to disable splitting "PowerShot" => "Power" "Shot".
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(klaas)
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4. SOLR-193: Adding SolrDocument and SolrInputDocument to represent documents
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outside of the lucene Document infrastructure. This class will be used
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by clients and for processing documents. (ryan)
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5. SOLR-244: Added ModifiableSolrParams - a SolrParams implementation that
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help you change values after initialization. (ryan)
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6. SOLR-20: Added a java client interface with two implementations. One
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implementation uses commons httpclient to connect to solr via HTTP. The
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other connects to solr directly. Check client/java/solrj. This addition
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also includes tests that start jetty and test a connection using the full
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HTTP request cycle. (Darren Erik Vengroff, Will Johnson, ryan)
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7. SOLR-133: Added StaxUpdateRequestHandler that uses StAX for XML parsing.
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This implementation has much better error checking and lets you configure
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a custom UpdateRequestProcessor that can selectively process update
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requests depending on the request attributes. This class will likely
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replace XmlUpdateRequestHandler. (Thorsten Scherler, ryan)
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8. SOLR-264: Added RandomSortField, a utility field with a random sort order.
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The seed is based on a hash of the field name, so a dynamic field
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of this type is useful for generating different random sequences.
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This field type should only be used for sorting or as a value source
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in a FunctionQuery (ryan, hossman, yonik)
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9. SOLR-266: Adding show=schema to LukeRequestHandler to show the parsed
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schema fields and field types. (ryan)
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10. SOLR-133: The UpdateRequestHandler now accepts multiple delete options
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within a single request. For example, sending:
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<delete><id>1</id><id>2</id></delete> will delete both 1 and 2. (ryan)
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11. SOLR-269: Added UpdateRequestProcessor plugin framework. This provides
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a reasonable place to process documents after they are parsed and
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before they are committed to the index. This is a good place for custom
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document manipulation or document based authorization. (yonik, ryan)
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12. SOLR-260: Converting to a standard PluginLoader framework. This reworks
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RequestHandlers, FieldTypes, and QueryResponseWriters to share the same
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base code for loading and initializing plugins. This adds a new
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configuration option to define the default RequestHandler and
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QueryResponseWriter in XML using default="true". (ryan)
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13. SOLR-225: Enable pluggable highlighting classes. Allow configurable
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highlighting formatters and Fragmenters. (ryan)
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14. SOLR-273: Added hl.maxAnalyzedChars highlighting parameter, defaulting to
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50k (klaas)
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15. SOLR-291: Control maximum number of documents to cache for any entry
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in the queryResultCache via queryResultMaxDocsCached solrconfig.xml
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entry. (Koji Sekiguchi via yonik)
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16. SOLR-240: New <lockType> configuration setting in <mainIndex> and
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<indexDefaults> blocks supports all Lucene builtin LockFactories.
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'single' is recommended setting, but 'simple' is default for total
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backwards compatibility.
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(Will Johnson via hossman)
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17. SOLR-248: Added CapitalizationFilterFactory that creates tokens with
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normalized capitalization. This filter is useful for facet display,
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but will not work with a prefix query. (ryan)
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18. SOLR-307: Added NGramFilterFactory and EdgeNGramFilterFactory.
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(Thomas Peuss via Otis Gospodnetic)
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19. SOLR-305: analysis.jsp can be given a fieldtype instead of a field
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name. (hossman)
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20. SOLR-102: Added RegexFragmenter, which splits text for highlighting
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based on a given pattern. (klaas)
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21. SOLR-258: Date Faceting added to SimpleFacets. Facet counts
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computed for ranges of size facet.date.gap (a DateMath expression)
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between facet.date.start and facet.date.end. (hossman)
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22. SOLR-196: A PHP serialized "phps" response writer that returns a
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serialized array that can be used with the PHP function unserialize,
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and a PHP response writer "php" that may be used by eval.
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(Nick Jenkin, Paul Borgermans, Pieter Berkel via yonik)
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23. SOLR-308: A new UUIDField class which accepts UUID string values,
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as well as the special value of "NEW" which triggers generation of
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a new random UUID.
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(Thomas Peuss via hossman)
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Changes in runtime behavior
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Optimizations
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1. SOLR-276: improve JSON writer speed. (yonik)
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2. SOLR-310: bound and reduce memory usage by providing <maxBufferedDeletes> parameter,
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which flushes deleted without forcing the user to use <commit/> for this purpose.
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(klaas)
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3. SOLR-348: short-circuit faceting if less than mincount docs match. (yonik)
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Bug Fixes
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1. Make TextField respect sortMissingFirst and sortMissingLast fields.
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(J.J. Larrea via yonik)
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2. autoCommit/maxDocs was not working properly when large autoCommit/maxTime
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was specified (klaas)
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3. SOLR-283: autoCommit was not working after delete. (ryan)
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4. SOLR-286: ContentStreamBase was not using default encoding for getBytes()
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(Toru Matsuzawa via ryan)
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5. SOLR-292: Fix MoreLikeThis facet counting. (Pieter Berkel via ryan)
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6. SOLR-297: Fix bug in RequiredSolrParams where requiring a field
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specific param would fail if a general default value had been supplied.
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(hossman)
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7. SOLR-331: Fix WordDelimiterFilter handling of offsets for synonyms or
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other injected tokens that can break highlighting. (yonik)
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8. SOLR-282: Snapshooter does not work on Solaris and OS X since the cp command
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there does not have the -l option. (bill)
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9. SOLR-294: Logging of elapsed time broken on Solaris because the date command
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there does not support the %s output format. (bill)
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10. SOLR-136: Snappuller - "date -d" and locales don't mix. (Jürgen Hermann via bill)
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11. SOLR-133: Changed distributiondump.jsp to use Solr HOME instead of CWD to set path.
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Other Changes
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1. SOLR-135: Moved common classes to org.apache.solr.common and altered the
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build scripts to make two jars: apache-solr-1.3.jar and
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apache-solr-1.3-common.jar. This common.jar can be used in client code;
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It does not have lucene or junit dependencies. The original classes
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have been replaced with a @Deprecated extended class and are scheduled
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to be removed in a later release. While this change does not affect API
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compatibility, it is recommended to update references to these
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deprecated classes. (ryan)
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2. SOLR-268: Tweaks to post.jar so it prints the error message from Solr.
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(Brian Whitman via hossman)
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3. Upgraded to Lucene 2.2.0; June 18, 2007.
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================== Release 1.2, 20070602 ==================
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Upgrading from Solr 1.1
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-------------------------------------
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IMPORTANT UPGRADE NOTE: In a master/slave configuration, all searchers/slaves
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should be upgraded before the master! If the master were to be updated
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first, the older searchers would not be able to read the new index format.
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Older Apache Solr installations can be upgraded by replacing
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the relevant war file with the new version. No changes to configuration
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files should be needed.
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This version of Solr contains a new version of Lucene implementing
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an updated index format. This version of Solr/Lucene can still read
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and update indexes in the older formats, and will convert them to the new
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format on the first index change. One change in the new index format
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is that all "norms" are kept in a single file, greatly reducing the number
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of files per segment. Users of compound file indexes will want to consider
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converting to the non-compound format for faster indexing and slightly better
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search concurrency.
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The JSON response format for facets has changed to make it easier for
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clients to retain sorted order. Use json.nl=map explicitly in clients
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to get the old behavior, or add it as a default to the request handler
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in solrconfig.xml
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The Lucene based Solr query syntax is slightly more strict.
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A ':' in a field value must be escaped or the whole value must be quoted.
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The Solr "Request Handler" framework has been updated in two key ways:
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First, if a Request Handler is registered in solrconfig.xml with a name
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starting with "/" then it can be accessed using path-based URL, instead of
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using the legacy "/select?qt=name" URL structure. Second, the Request
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Handler framework has been extended making it possible to write Request
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Handlers that process streams of data for doing updates, and there is a
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new-style Request Handler for XML updates given the name of "/update" in
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the example solrconfig.xml. Existing installations without this "/update"
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handler will continue to use the old update servlet and should see no
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changes in behavior. For new-style update handlers, errors are now
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reflected in the HTTP status code, Content-type checking is more strict,
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and the response format has changed and is controllable via the wt
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parameter.
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Detailed Change List
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--------------------
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New Features
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1. SOLR-82: Default field values can be specified in the schema.xml.
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(Ryan McKinley via hossman)
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2. SOLR-89: Two new TokenFilters with corresponding Factories...
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* TrimFilter - Trims leading and trailing whitespace from Tokens
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* PatternReplaceFilter - applies a Pattern to each token in the
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stream, replacing match occurances with a specified replacement.
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(hossman)
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3. SOLR-91: allow configuration of a limit of the number of searchers
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that can be warming in the background. This can be used to avoid
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out-of-memory errors, or contention caused by more and more searchers
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warming in the background. An error is thrown if the limit specified
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by maxWarmingSearchers in solrconfig.xml is exceeded. (yonik)
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4. SOLR-106: New faceting parameters that allow specification of a
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minimum count for returned facets (facet.mincount), paging through facets
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(facet.offset, facet.limit), and explicit sorting (facet.sort).
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facet.zeros is now deprecated. (yonik)
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5. SOLR-80: Negative queries are now allowed everywhere. Negative queries
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are generated and cached as their positive counterpart, speeding
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generation and generally resulting in smaller sets to cache.
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Set intersections in SolrIndexSearcher are more efficient,
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starting with the smallest positive set, subtracting all negative
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sets, then intersecting with all other positive sets. (yonik)
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6. SOLR-117: Limit a field faceting to constraints with a prefix specified
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by facet.prefix or f.<field>.facet.prefix. (yonik)
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7. SOLR-107: JAVA API: Change NamedList to use Java5 generics
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and implement Iterable<Map.Entry> (Ryan McKinley via yonik)
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8. SOLR-104: Support for "Update Plugins" -- RequestHandlers that want
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access to streams of data for doing updates. ContentStreams can come
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from the raw POST body, multi-part form data, or remote URLs.
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Included in this change is a new SolrDispatchFilter that allows
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RequestHandlers registered with names that begin with a "/" to be
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accessed using a URL structure based on that name.
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(Ryan McKinley via hossman)
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9. SOLR-126: DirectUpdateHandler2 supports autocommitting after a specified time
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(in ms), using <autoCommit><maxTime>10000</maxTime></autoCommit>.
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(Ryan McKinley via klaas).
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10. SOLR-116: IndexInfoRequestHandler added. (Erik Hatcher)
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11. SOLR-79: Add system property ${<sys.prop>[:<default>]} substitution for
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configuration files loaded, including schema.xml and solrconfig.xml.
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(Erik Hatcher with inspiration from Andrew Saar)
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12. SOLR-149: Changes to make Solr more easily embeddable, in addition
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to logging which request handler handled each request.
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(Ryan McKinley via yonik)
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13. SOLR-86: Added standalone Java-based command-line updater.
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(Erik Hatcher via Bertrand Delecretaz)
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14. SOLR-152: DisMaxRequestHandler now supports configurable alternate
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behavior when q is not specified. A "q.alt" param can be specified
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using SolrQueryParser syntax as a mechanism for specifying what query
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the dismax handler should execute if the main user query (q) is blank.
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(Ryan McKinley via hossman)
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15. SOLR-158: new "qs" (Query Slop) param for DisMaxRequestHandler
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allows for specifying the amount of default slop to use when parsing
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explicit phrase queries from the user.
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(Adam Hiatt via hossman)
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16. SOLR-81: SpellCheckerRequestHandler that uses the SpellChecker from
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the Lucene contrib.
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(Otis Gospodnetic and Adam Hiatt)
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17. SOLR-182: allow lazy loading of request handlers on first request.
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(Ryan McKinley via yonik)
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18. SOLR-81: More SpellCheckerRequestHandler enhancements, inlcluding
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support for relative or absolute directory path configurations, as
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well as RAM based directory. (hossman)
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19. SOLR-197: New parameters for input: stream.contentType for specifying
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or overriding the content type of input, and stream.file for reading
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local files. (Ryan McKinley via yonik)
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20. SOLR-66: CSV data format for document additions and updates. (yonik)
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21. SOLR-184: add echoHandler=true to responseHeader, support echoParams=all
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(Ryan McKinley via ehatcher)
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22. SOLR-211: Added a regex PatternTokenizerFactory. This extracts tokens
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from the input string using a regex Pattern. (Ryan McKinley)
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23. SOLR-162: Added a "Luke" request handler and other admin helpers.
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This exposes the system status through the standard requestHandler
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framework. (ryan)
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24. SOLR-212: Added a DirectSolrConnection class. This lets you access
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solr using the standard request/response formats, but does not require
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an HTTP connection. It is designed for embedded applications. (ryan)
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25. SOLR-204: The request dispatcher (added in SOLR-104) can handle
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calls to /select. This offers uniform error handling for /update and
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/select. To enable this behavior, you must add:
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<requestDispatcher handleSelect="true" > to your solrconfig.xml
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See the example solrconfig.xml for details. (ryan)
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26. SOLR-170: StandardRequestHandler now supports a "sort" parameter.
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Using the ';' syntax is still supported, but it is recommended to
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transition to the new syntax. (ryan)
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27. SOLR-181: The index schema now supports "required" fields. Attempts
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to add a document without a required field will fail, returning a
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descriptive error message. By default, the uniqueKey field is
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a required field. This can be disabled by setting required=false
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in schema.xml. (Greg Ludington via ryan)
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28. SOLR-217: Fields configured in the schema to be neither indexed or
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stored will now be quietly ignored by Solr when Documents are added.
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The example schema has a comment explaining how this can be used to
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ignore any "unknown" fields.
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(Will Johnson via hossman)
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29. SOLR-227: If schema.xml defines multiple fieldTypes, fields, or
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dynamicFields with the same name, a severe error will be logged rather
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then quietly continuing. Depending on the <abortOnConfigurationError>
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settings, this may halt the server. Likewise, if solrconfig.xml
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defines multiple RequestHandlers with the same name it will also add
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an error. (ryan)
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30. SOLR-226: Added support for dynamic field as the destination of a
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copyField using glob (*) replacement. (ryan)
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31. SOLR-224: Adding a PhoneticFilterFactory that uses apache commons codec
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language encoders to build phonetically similar tokens. This currently
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supports: DoubleMetaphone, Metaphone, Soundex, and RefinedSoundex (ryan)
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32. SOLR-199: new n-gram tokenizers available via NGramTokenizerFactory
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and EdgeNGramTokenizerFactory. (Adam Hiatt via yonik)
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33. SOLR-234: TrimFilter can update the Token's startOffset and endOffset
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if updateOffsets="true". By default the Token offsets are unchanged.
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(ryan)
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34. SOLR-208: new example_rss.xsl and example_atom.xsl to provide more
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examples for people about the Solr XML response format and how they
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can transform it to suit different needs.
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(Brian Whitman via hossman)
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35. SOLR-249: Deprecated SolrException( int, ... ) constructors in favor
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of constructors that takes an ErrorCode enum. This will ensure that
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all SolrExceptions use a valid HTTP status code. (ryan)
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Changes in runtime behavior
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1. Highlighting using DisMax will only pick up terms from the main
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user query, not boost or filter queries (klaas).
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2. SOLR-125: Change default of json.nl to flat, change so that
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json.nl only affects items where order matters (facet constraint
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listings). Fix JSON output bug for null values. Internal JAVA API:
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change most uses of NamedList to SimpleOrderedMap. (yonik)
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3. A new method "getSolrQueryParser" has been added to the IndexSchema
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class for retrieving a new SolrQueryParser instance with all options
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specified in the schema.xml's <solrQueryParser> block set. The
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documentation for the SolrQueryParser constructor and it's use of
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IndexSchema have also been clarified.
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(Erik Hatcher and hossman)
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4. DisMaxRequestHandler's bq, bf, qf, and pf parameters can now accept
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multiple values (klaas).
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5. Query are re-written before highlighting is performed. This enables
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proper highlighting of prefix and wildcard queries (klaas).
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6. A meaningful exception is raised when attempting to add a doc missing
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a unique id if it is declared in the schema and allowDups=false.
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(ryan via klaas)
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7. SOLR-183: Exceptions with error code 400 are raised when
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numeric argument parsing fails. RequiredSolrParams class added
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to facilitate checking for parameters that must be present.
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(Ryan McKinley, J.J. Larrea via yonik)
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8. SOLR-179: By default, solr will abort after any severe initalization
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errors. This behavior can be disabled by setting:
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<abortOnConfigurationError>false</abortOnConfigurationError>
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in solrconfig.xml (ryan)
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9. The example solrconfig.xml maps /update to XmlUpdateRequestHandler using
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the new request dispatcher (SOLR-104). This requires posted content to
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have a valid contentType: curl -H 'Content-type:text/xml; charset=utf-8'
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The response format matches that of /select and returns standard error
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codes. To enable solr1.1 style /update, do not map "/update" to any
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handler in solrconfig.xml (ryan)
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10. SOLR-231: If a charset is not specified in the contentType,
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ContentStream.getReader() will use UTF-8 encoding. (ryan)
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11. SOLR-230: More options for post.jar to support stdin, xml on the
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commandline, and defering commits. Tutorial modified to take
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advantage of these options so there is no need for curl.
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(hossman)
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12. SOLR-128: Upgraded Jetty to the latest stable release 6.1.3 (ryan)
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Optimizations
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1. SOLR-114: HashDocSet specific implementations of union() and andNot()
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for a 20x performance improvement for those set operations, and a new
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hash algorithm speeds up exists() by 10% and intersectionSize() by 8%.
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(yonik)
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2. SOLR-115: Solr now uses BooleanQuery.clauses() instead of
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BooleanQuery.getClauses() in any situation where there is no risk of
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modifying the original query.
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|
(hossman)
|
|
|
|
3. SOLR-221: Speed up sorted faceting on multivalued fields by ~60%
|
|
when the base set consists of a relatively large portion of the
|
|
index. (yonik)
|
|
|
|
4. SOLR-221: Added a facet.enum.cache.minDf parameter which avoids
|
|
using the filterCache for terms that match few documents, trading
|
|
decreased memory usage for increased query time. (yonik)
|
|
|
|
Bug Fixes
|
|
1. SOLR-87: Parsing of synonym files did not correctly handle escaped
|
|
whitespace such as \r\n\t\b\f. (yonik)
|
|
|
|
2. SOLR-92: DOMUtils.getText (used when parsing config files) did not
|
|
work properly with many DOM implementations when dealing with
|
|
"Attributes". (Ryan McKinley via hossman)
|
|
|
|
3. SOLR-9,SOLR-99: Tighten up sort specification error checking, throw
|
|
exceptions for missing sort specifications or a sort on a non-indexed
|
|
field. (Ryan McKinley via yonik)
|
|
|
|
4. SOLR-145: Fix for bug introduced in SOLR-104 where some Exceptions
|
|
were being ignored by all "out of the box" RequestHandlers. (hossman)
|
|
|
|
5. SOLR-166: JNDI solr.home code refactoring. SOLR-104 moved
|
|
some JNDI related code to the init method of a Servlet Filter -
|
|
according to the Servlet Spec, all Filter's should be initialized
|
|
prior to initializing any Servlets, but this is not the case in at
|
|
least one Servlet Container (Resin). This "bug fix" refactors
|
|
this JNDI code so that it should be executed the first time any
|
|
attempt is made to use the solr.home dir.
|
|
(Ryan McKinley via hossman)
|
|
|
|
6. SOLR-173: Bug fix to SolrDispatchFilter to reduce "too many open
|
|
files" problem was that SolrDispatchFilter was not closing requests
|
|
when finished. Also modified ResponseWriters to only fetch a Searcher
|
|
reference if necessary for writing out DocLists.
|
|
(Ryan McKinley via hossman)
|
|
|
|
7. SOLR-168: Fix display positioning of multiple tokens at the same
|
|
position in analysis.jsp (yonik)
|
|
|
|
8. SOLR-167: The SynonymFilter sometimes generated incorrect offsets when
|
|
multi token synonyms were mached in the source text. (yonik)
|
|
|
|
9. SOLR-188: bin scripts do not support non-default webapp names. Added "-U"
|
|
option to specify a full path to the update url, overriding the
|
|
"-h" (hostname), "-p" (port) and "-w" (webapp name) parameters.
|
|
(Jeff Rodenburg via billa)
|
|
|
|
10. SOLR-198: RunExecutableListener always waited for the process to
|
|
finish, even when wait="false" was set. (Koji Sekiguchi via yonik)
|
|
|
|
11. SOLR-207: Changed distribution scripts to remove recursive find
|
|
and avoid use of "find -maxdepth" on platforms where it is not
|
|
supported. (yonik)
|
|
|
|
12. SOLR-222: Changing writeLockTimeout in solrconfig.xml did not
|
|
change the effective timeout. (Koji Sekiguchi via yonik)
|
|
|
|
13. Changed the SOLR-104 RequestDispatcher so that /select?qt=xxx can not
|
|
access handlers that start with "/". This makes path based authentication
|
|
possible for path based request handlers. (ryan)
|
|
|
|
14. SOLR-214: Some servlet containers (including Tomcat and Resin) do not
|
|
obey the specified charset. Rather then letting the the container handle
|
|
it solr now uses the charset from the header contentType to decode posted
|
|
content. Using the contentType: "text/xml; charset=utf-8" will force
|
|
utf-8 encoding. If you do not specify a contentType, it will use the
|
|
platform default. (Koji Sekiguchi via ryan)
|
|
|
|
15. SOLR-241: Undefined system properties used in configuration files now
|
|
cause a clear message to be logged rather than an obscure exception thrown.
|
|
(Koji Sekiguchi via ehatcher)
|
|
|
|
Other Changes
|
|
1. Updated to Lucene 2.1
|
|
|
|
2. Updated to Lucene 2007-05-20_00-04-53
|
|
|
|
================== Release 1.1.0, 20061222 ==================
|
|
|
|
Status
|
|
------
|
|
This is the first release since Solr joined the Incubator, and brings many
|
|
new features and performance optimizations including highlighting,
|
|
faceted browsing, and JSON/Python/Ruby response formats.
|
|
|
|
|
|
Upgrading from previous Solr versions
|
|
-------------------------------------
|
|
Older Apache Solr installations can be upgraded by replacing
|
|
the relevant war file with the new version. No changes to configuration
|
|
files are needed and the index format has not changed.
|
|
|
|
The default version of the Solr XML response syntax has been changed to 2.2.
|
|
Behavior can be preserved for those clients not explicitly specifying a
|
|
version by adding a default to the request handler in solrconfig.xml
|
|
|
|
By default, Solr will no longer use a searcher that has not fully warmed,
|
|
and requests will block in the meantime. To change back to the previous
|
|
behavior of using a cold searcher in the event there is no other
|
|
warm searcher, see the useColdSearcher config item in solrconfig.xml
|
|
|
|
The XML response format when adding multiple documents to the collection
|
|
in a single <add> command has changed to return a single <result>.
|
|
|
|
|
|
Detailed Change List
|
|
--------------------
|
|
|
|
New Features
|
|
1. added support for setting Lucene's positionIncrementGap
|
|
2. Admin: new statistics for SolrIndexSearcher
|
|
3. Admin: caches now show config params on stats page
|
|
3. max() function added to FunctionQuery suite
|
|
4. postOptimize hook, mirroring the functionallity of the postCommit hook,
|
|
but only called on an index optimize.
|
|
5. Ability to HTTP POST query requests to /select in addition to HTTP-GET
|
|
6. The default search field may now be overridden by requests to the
|
|
standard request handler using the df query parameter. (Erik Hatcher)
|
|
7. Added DisMaxRequestHandler and SolrPluginUtils. (Chris Hostetter)
|
|
8. Support for customizing the QueryResponseWriter per request
|
|
(Mike Baranczak / SOLR-16 / hossman)
|
|
9. Added KeywordTokenizerFactory (hossman)
|
|
10. copyField accepts dynamicfield-like names as the source.
|
|
(Darren Erik Vengroff via yonik, SOLR-21)
|
|
11. new DocSet.andNot(), DocSet.andNotSize() (yonik)
|
|
12. Ability to store term vectors for fields. (Mike Klaas via yonik, SOLR-23)
|
|
13. New abstract BufferedTokenStream for people who want to write
|
|
Tokenizers or TokenFilters that require arbitrary buffering of the
|
|
stream. (SOLR-11 / yonik, hossman)
|
|
14. New RemoveDuplicatesToken - useful in situations where
|
|
synonyms, stemming, or word-deliminater-ing produce identical tokens at
|
|
the same position. (SOLR-11 / yonik, hossman)
|
|
15. Added highlighting to SolrPluginUtils and implemented in StandardRequestHandler
|
|
and DisMaxRequestHandler (SOLR-24 / Mike Klaas via hossman,yonik)
|
|
16. SnowballPorterFilterFactory language is configurable via the "language"
|
|
attribute, with the default being "English". (Bertrand Delacretaz via yonik, SOLR-27)
|
|
17. ISOLatin1AccentFilterFactory, instantiates ISOLatin1AccentFilter to remove accents.
|
|
(Bertrand Delacretaz via yonik, SOLR-28)
|
|
18. JSON, Python, Ruby QueryResponseWriters: use wt="json", "python" or "ruby"
|
|
(yonik, SOLR-31)
|
|
19. Make web admin pages return UTF-8, change Content-type declaration to include a
|
|
space between the mime-type and charset (Philip Jacob, SOLR-35)
|
|
20. Made query parser default operator configurable via schema.xml:
|
|
<solrQueryParser defaultOperator="AND|OR"/>
|
|
The default operator remains "OR".
|
|
21. JAVA API: new version of SolrIndexSearcher.getDocListAndSet() which takes
|
|
flags (Greg Ludington via yonik, SOLR-39)
|
|
22. A HyphenatedWordsFilter, a text analysis filter used during indexing to rejoin
|
|
words that were hyphenated and split by a newline. (Boris Vitez via yonik, SOLR-41)
|
|
23. Added a CompressableField base class which allows fields of derived types to
|
|
be compressed using the compress=true setting. The field type also gains the
|
|
ability to specify a size threshold at which field data is compressed.
|
|
(klaas, SOLR-45)
|
|
24. Simple faceted search support for fields (enumerating terms)
|
|
and arbitrary queries added to both StandardRequestHandler and
|
|
DisMaxRequestHandler. (hossman, SOLR-44)
|
|
25. In addition to specifying default RequestHandler params in the
|
|
solrconfig.xml, support has been added for configuring values to be
|
|
appended to the multi-val request params, as well as for configuring
|
|
invariant params that can not overridden in the query. (hossman, SOLR-46)
|
|
26. Default operator for query parsing can now be specified with q.op=AND|OR
|
|
from the client request, overriding the schema value. (ehatcher)
|
|
27. New XSLTResponseWriter does server side XSLT processing of XML Response.
|
|
In the process, an init(NamedList) method was added to QueryResponseWriter
|
|
which works the same way as SolrRequestHandler.
|
|
(Bertrand Delacretaz / SOLR-49 / hossman)
|
|
28. json.wrf parameter adds a wrapper-function around the JSON response,
|
|
useful in AJAX with dynamic script tags for specifying a JavaScript
|
|
callback function. (Bertrand Delacretaz via yonik, SOLR-56)
|
|
29. autoCommit can be specified every so many documents added (klaas, SOLR-65)
|
|
30. ${solr.home}/lib directory can now be used for specifying "plugin" jars
|
|
(hossman, SOLR-68)
|
|
31. Support for "Date Math" relative "NOW" when specifying values of a
|
|
DateField in a query -- or when adding a document.
|
|
(hossman, SOLR-71)
|
|
32. useColdSearcher control in solrconfig.xml prevents the first searcher
|
|
from being used before it's done warming. This can help prevent
|
|
thrashing on startup when multiple requests hit a cold searcher.
|
|
The default is "false", preventing use before warm. (yonik, SOLR-77)
|
|
|
|
Changes in runtime behavior
|
|
1. classes reorganized into different packages, package names changed to Apache
|
|
2. force read of document stored fields in QuerySenderListener
|
|
3. Solr now looks in ./solr/conf for config, ./solr/data for data
|
|
configurable via solr.solr.home system property
|
|
4. Highlighter params changed to be prefixed with "hl."; allow fragmentsize
|
|
customization and per-field overrides on many options
|
|
(Andrew May via klaas, SOLR-37)
|
|
5. Default param values for DisMaxRequestHandler should now be specified
|
|
using a '<lst name="defaults">...</lst>' init param, for backwards
|
|
compatability all init prams will be used as defaults if an init param
|
|
with that name does not exist. (hossman, SOLR-43)
|
|
6. The DisMaxRequestHandler now supports multiple occurances of the "fq"
|
|
param. (hossman, SOLR-44)
|
|
7. FunctionQuery.explain now uses ComplexExplanation to provide more
|
|
accurate score explanations when composed in a BooleanQuery.
|
|
(hossman, SOLR-25)
|
|
8. Document update handling locking is much sparser, allowing performance gains
|
|
through multiple threads. Large commits also might be faster (klaas, SOLR-65)
|
|
9. Lazy field loading can be enabled via a solrconfig directive. This will be faster when
|
|
not all stored fields are needed from a document (klaas, SOLR-52)
|
|
10. Made admin JSPs return XML and transform them with new XSL stylesheets
|
|
(Otis Gospodnetic, SOLR-58)
|
|
11. If the "echoParams=explicit" request parameter is set, request parameters are copied
|
|
to the output. In an XML output, they appear in new <lst name="params"> list inside
|
|
the new <lst name="responseHeader"> element, which replaces the old <responseHeader>.
|
|
Adding a version=2.1 parameter to the request produces the old format, for backwards
|
|
compatibility (bdelacretaz and yonik, SOLR-59).
|
|
|
|
Optimizations
|
|
1. getDocListAndSet can now generate both a DocList and a DocSet from a
|
|
single lucene query.
|
|
2. BitDocSet.intersectionSize(HashDocSet) no longer generates an intermediate
|
|
set
|
|
3. OpenBitSet completed, replaces BitSet as the implementation for BitDocSet.
|
|
Iteration is faster, and BitDocSet.intersectionSize(BitDocSet) and unionSize
|
|
is between 3 and 4 times faster. (yonik, SOLR-15)
|
|
4. much faster unionSize when one of the sets is a HashDocSet: O(smaller_set_size)
|
|
5. Optimized getDocSet() for term queries resulting in a 36% speedup of facet.field
|
|
queries where DocSets aren't cached (for example, if the number of terms in the field
|
|
is larger than the filter cache.) (yonik)
|
|
6. Optimized facet.field faceting by as much as 500 times when the field has
|
|
a single token per document (not multiValued & not tokenized) by using the
|
|
Lucene FieldCache entry for that field to tally term counts. The first request
|
|
utilizing the FieldCache will take longer than subsequent ones.
|
|
|
|
Bug Fixes
|
|
1. Fixed delete-by-id for field types who's indexed form is different
|
|
from the printable form (mainly sortable numeric types).
|
|
2. Added escaping of attribute values in the XML response (Erik Hatcher)
|
|
3. Added empty extractTerms() to FunctionQuery to enable use in
|
|
a MultiSearcher (Yonik)
|
|
4. WordDelimiterFilter sometimes lost token positionIncrement information
|
|
5. Fix reverse sorting for fields were sortMissingFirst=true
|
|
(Rob Staveley, yonik)
|
|
6. Worked around a Jetty bug that caused invalid XML responses for fields
|
|
containing non ASCII chars. (Bertrand Delacretaz via yonik, SOLR-32)
|
|
7. WordDelimiterFilter can throw exceptions if configured with both
|
|
generate and catenate off. (Mike Klaas via yonik, SOLR-34)
|
|
8. Escape '>' in XML output (because ]]> is illegal in CharData)
|
|
9. field boosts weren't being applied and doc boosts were being applied to fields (klaas)
|
|
10. Multiple-doc update generates well-formed xml (klaas, SOLR-65)
|
|
11. Better parsing of pingQuery from solrconfig.xml (hossman, SOLR-70)
|
|
12. Fixed bug with "Distribution" page introduced when Versions were
|
|
added to "Info" page (hossman)
|
|
13. Fixed HTML escaping issues with user input to analysis.jsp and action.jsp
|
|
(hossman, SOLR-74)
|
|
|
|
Other Changes
|
|
1. Upgrade to Lucene 2.0 nightly build 2006-06-22, lucene SVN revision 416224,
|
|
http://svn.apache.org/viewvc/lucene/java/trunk/CHANGES.txt?view=markup&pathrev=416224
|
|
2. Modified admin styles to improve display in Internet Explorer (Greg Ludington via billa, SOLR-6)
|
|
3. Upgrade to Lucene 2.0 nightly build 2006-07-15, lucene SVN revision 422302,
|
|
4. Included unique key field name/value (if available) in log message of add (billa, SOLR-18)
|
|
5. Updated to Lucene 2.0 nightly build 2006-09-07, SVN revision 462111
|
|
6. Added javascript to catch empty query in admin query forms (Tomislav Nakic-Alfirevic via billa, SOLR-48
|
|
7. blackslash escape * in ssh command used in snappuller for zsh compatibility, SOLR-63
|
|
8. check solr return code in admin scripts, SOLR-62
|
|
9. Updated to Lucene 2.0 nightly build 2006-11-15, SVN revision 475069
|
|
10. Removed src/apps containing the legacy "SolrTest" app (hossman, SOLR-3)
|
|
11. Simplified index.jsp and form.jsp, primarily by removing/hiding XML
|
|
specific params, and adding an option to pick the output type. (hossman)
|
|
12. Added new numeric build property "specversion" to allow clean
|
|
MANIFEST.MF files (hossman)
|
|
13. Added Solr/Lucene versions to "Info" page (hossman)
|
|
14. Explicitly set mime-type of .xsl files in web.xml to
|
|
application/xslt+xml (hossman)
|
|
15. Config parsing should now work useing DOM Level 2 parsers -- Solr
|
|
previously relied on getTextContent which is a DOM Level 3 addition
|
|
(Alexander Saar via hossman, SOLR-78)
|
|
|
|
2006/01/17 Solr open sourced, moves to Apache Incubator
|