solr/solrj原子更新

本文介绍了如何使用Solr进行原子更新操作,通过示例代码展示了如何添加、更新字段,并强调了被操作字段必须设置为存储类型的重要性。

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lucene原子更新自己不用多介绍,但solr它的包装,下面是一个简单的介绍是;这个操作是用于索引非常有用。
详细在代码中使用例如以下:
  1. /** 
  2.  * 原子更新方式 
  3.  * */  
  4. public static void updateSolrField()throws Exception{  
  5.     SolrInputDocument doc = new SolrInputDocument();  
  6.     doc .addField("id""10");//依据id唯一标识  
  7.     Map<String,String> map=new HashMap<String, String>();  
  8.     map.put("add""新加的field");//放入支持的操作,对多值域管用 ,添加field 
  9.     //map.put("set", "更新后的field");//对单值和多值域管用,更新field  
  10.     //map.put("inc", "100");//放入支持的操作,对数值域管用  
  11.     sd.addField("name", map);  
  12.     server.add(sd);  
  13.     server.commit();  
  14.     System.out.println("原子更新成功!");  

当然要注意一点的是,操作的field必须为存储(store="true"),否则更新的指数将覆盖上一个索引。

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root@f1ef6bb4588a:/opt/solr# ps aux | grep java root 6700 0.0 0.0 12820 2048 pts/1 S+ 03:26 0:00 grep java root@f1ef6bb4588a:/opt/solr# ps aux | grep java root 6700 0.0 0.0 12820 2048 pts/1 S+ 03:26 0:00 grep java root@f1ef6bb4588a:/opt/solr# root@f1ef6bb4588a:/opt/solr# grep -R "SOLR_HOST" /opt/solr/ /opt/solr/CHANGES.txt: }' http://$SOLR_HOST:$SOLR_PORT/api/cluster /opt/solr/CHANGES.txt: }' http://$SOLR_HOST:$SOLR_PORT/api/cluster /opt/solr/CHANGES.txt:* SOLR-7545: Honour SOLR_HOST parameter with bin/solr{,.cmd} /opt/solr/bin/solr:if [ "$SOLR_HOST" != "" ]; then /opt/solr/bin/solr: SOLR_TOOL_HOST="$SOLR_HOST" /opt/solr/bin/solr: echo " Can be run on remote (non-Solr) hosts, as long as a valid SOLR_HOST is provided in solr.in.sh" /opt/solr/bin/solr: echo "Can be run from remote (non-Solr) hosts, as long as a valid SOLR_HOST is provided in solr.in.sh" /opt/solr/bin/solr: SOLR_HOST="$2" /opt/solr/bin/solr: PASS_TO_RUN_EXAMPLE+=" -h $SOLR_HOST" /opt/solr/bin/solr:if [ "$SOLR_HOST" != "" ]; then /opt/solr/bin/solr: SOLR_HOST_ARG=("-Dhost=$SOLR_HOST") /opt/solr/bin/solr: SOLR_HOST_ARG=() /opt/solr/bin/solr: if [ "$SOLR_HOST" != "" ]; then /opt/solr/bin/solr: REMOTE_JMX_OPTS+=("-Djava.rmi.server.hostname=$SOLR_HOST") /opt/solr/bin/solr: echo -e " SOLR_HOST = $SOLR_HOST" /opt/solr/bin/solr: "${SOLR_HOST_ARG[@]}" "-Duser.timezone=$SOLR_TIMEZONE" "-XX:-OmitStackTraceInFastThrow" \ /opt/solr/bin/solr.cmd:IF NOT "%SOLR_HOST%"=="" ( /opt/solr/bin/solr.cmd: set "SOLR_TOOL_HOST=%SOLR_HOST%" /opt/solr/bin/solr.cmd:echo Can be run on remote (non-Solr^) hosts, as long as a valid SOLR_HOST is provided in solr.in.cmd /opt/solr/bin/solr.cmd:echo Can be run from remote (non-Solr^) hosts, as long as a valid SOLR_HOST is provided in solr.in.cmd. /opt/solr/bin/solr.cmd:set SOLR_HOST=%~2 /opt/solr/bin/solr.cmd:IF NOT "%SOLR_HOST%"=="" ( /opt/solr/bin/solr.cmd: set SOLR_HOST_ARG=-Dhost=%SOLR_HOST% /opt/solr/bin/solr.cmd: set SOLR_HOST_ARG= /opt/solr/bin/solr.cmd: IF NOT "%SOLR_HOST%"=="" set REMOTE_JMX_OPTS=%REMOTE_JMX_OPTS% -Djava.rmi.server.hostname=%SOLR_HOST% /opt/solr/bin/solr.cmd: @echo SOLR_HOST = %SOLR_HOST% /opt/solr/bin/solr.cmd:IF NOT "%SOLR_HOST_ARG%"=="" set "START_OPTS=%START_OPTS% %SOLR_HOST_ARG%" /opt/solr/bin/solr.in.cmd:REM set SOLR_HOST=192.168.1.1 /opt/solr/bin/solr.in.sh:#SOLR_HOST="192.168.1.1" root@f1ef6bb4588a:/opt/solr# grep -R "8983" /opt/solr/server/etc/*.xml /opt/solr/server/etc/jetty-http.xml: <Set name="port"><Property name="jetty.port" default="8983" /></Set> /opt/solr/server/etc/jetty-https.xml: <Set name="port"><Property name="solr.jetty.https.port" default="8983" /></Set> /opt/solr/server/etc/jetty-https8.xml: <Set name="port"><Property name="solr.jetty.https.port" default="8983" /></Set> root@f1ef6bb4588a:/opt/solr# tail -n 100 /opt/solr/server/logs/solr-8983-console.log OpenJDK 64-Bit Server VM warning: Failed to reserve shared memory (errno = 12). OpenJDK 64-Bit Server VM warning: Failed to reserve shared memory (errno = 12). OpenJDK 64-Bit Server VM warning: Failed to reserve shared memory (errno = 12). OpenJDK 64-Bit Server VM warning: Failed to reserve shared memory (errno = 12). library initialization failed - unable to allocate file descriptor table - out of memoryroot@f1ef6bb4588a:/opt/solr#
最新发布
03-22
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