Red Hat Summit Red Hat Summit지원콘솔개발자평가판 시작연락처

이 콘텐츠는 선택한 언어로 제공되지 않습니다.

2.5. Tuning the Index

2.5.1. Exclusive Index Use
링크 복사

Lucene directory synchronizes access to the index using locks. For indices that are only ever accessed locally (such as RAM-based index, or filesystem index not shared between multiple nodes) you can set the following to gain a performance boost. 
<property name="default.exclusive_index_use" value="true" />
Copy to Clipboard Toggle word wrap

Important

Set the default.exclusive_index_use property to false to allow multiple caches to share the same stored index. However, this is not recommended because index writes triggered by any of the caches that share the same index will then compete for the write lock. When this happens, unless the business logic ensures that there is no contention, timeouts can be triggered, which result in runtime exceptions.
Report a bug

2.5.2. Near-Realtime Index Manager
링크 복사

By default, each update is immediately flushed into the index. In order to achieve better throughput, the updates can be batched. However, this can result in a lag between the update and query -- the query can see outdated data. If this is acceptable, you can use the Near-Realtime Index Manager by setting the following. 
<property name="default.indexmanager" value="near-real-time" />
Copy to Clipboard Toggle word wrap
Report a bug

2.5.3. Tuning Infinispan Directory
링크 복사

Lucene directory uses three caches to store the index:
  • Data cache
  • Metadata cache
  • Locking cache
Configuration for these caches can be set explicitly, specifying the cache names as in the example below, and configuring those caches as usual. All of these caches must be clustered unless you using Infinispan Directory in local mode.

Example 2.6. Tuning the Infinispan Directory

<namedCache name="indexedCache">
      <clustering mode="DIST" />
      <indexing enabled="true">
         <properties>
            <property name="default.indexmanager" value="org.infinispan.query.indexmanager.InfinispanIndexManager" />
            <property name="default.exclusive_index_use" value="{true|false}" />
            <property name="default.metadata_cachename" value="lucene_metadata_repl" />
            <property name="default.data_cachename" value="lucene_data_dist" />
            <property name="default.locking_cachename" value="lucene_locking_repl" />
         </properties>
      </indexing>
   </namedCache>
   <namedCache name="lucene_metadata_repl">
      <clustering mode="REPL" />
   </namedCache>
   <namedCache name="lucene_data_dist">
      <clustering mode="DIST" />
   </namedCache>
   <namedCache name="lucene_locking_repl">
      <clustering mode="REPL" />
   </namedCache>
Copy to Clipboard Toggle word wrap

Important

The default.exclusive_index_use configuration property in the provided sample configuration is set depending on which version of Red Hat JBoss Data Grid is in use:
  • when using JBoss Data Grid 6.3.0, set the default.exclusive_index_use to false.
  • when using JBoss Data Grid 6.3.1, to improve performance, either exclude default.exclusive_index_use (the default value true is then used) or explicitly set the value to true.
Report a bug

2.5.4. Per-Index Configuration
링크 복사

The indexing properties in examples above apply for all indices - this is because we use the default. prefix for each property. To specify different configuration for each index, replace default with the index name. By default, this is the full class name of the indexed object, however you can override the index name in the @Indexed annotation.
Report a bug
맨 위로 이동
Red Hat logoGithubredditYoutubeTwitter

자세한 정보

평가판, 구매 및 판매

커뮤니티

Red Hat 문서 정보

Red Hat을 사용하는 고객은 신뢰할 수 있는 콘텐츠가 포함된 제품과 서비스를 통해 혁신하고 목표를 달성할 수 있습니다. 최신 업데이트를 확인하세요.

보다 포괄적 수용을 위한 오픈 소스 용어 교체

Red Hat은 코드, 문서, 웹 속성에서 문제가 있는 언어를 교체하기 위해 최선을 다하고 있습니다. 자세한 내용은 다음을 참조하세요.Red Hat 블로그.

Red Hat 소개

Red Hat은 기업이 핵심 데이터 센터에서 네트워크 에지에 이르기까지 플랫폼과 환경 전반에서 더 쉽게 작업할 수 있도록 강화된 솔루션을 제공합니다.

Theme

© 2025 Red Hat