Apache Solr - 基本命令

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啟動 Solr

安裝 Solr 後，瀏覽到 Solr 主目錄中的 **bin** 資料夾，並使用以下命令啟動 Solr。

[Hadoop@localhost ~]$ cd   
[Hadoop@localhost ~]$ cd Solr/ 
[Hadoop@localhost Solr]$ cd bin/ 
[Hadoop@localhost bin]$ ./Solr start

此命令在後臺啟動 Solr，並在埠 8983 上監聽，並顯示以下訊息。

Waiting up to 30 seconds to see Solr running on port 8983 [\]   
Started Solr server on port 8983 (pid = 6035). Happy searching!

在前景啟動 Solr

如果使用 **start** 命令啟動 **Solr**，則 Solr 將在後臺啟動。相反，您可以使用 **–f 選項** 在前景啟動 Solr。

[Hadoop@localhost bin]$ ./Solr start –f  

5823 INFO  (coreLoadExecutor-6-thread-2) [   ] o.a.s.c.SolrResourceLoader 
Adding 'file:/home/Hadoop/Solr/contrib/extraction/lib/xmlbeans-2.6.0.jar' to 
classloader 
5823 INFO  (coreLoadExecutor-6-thread-2) [   ] o.a.s.c.SolrResourceLoader 
Adding 'file:/home/Hadoop/Solr/dist/Solr-cell-6.2.0.jar' to classloader 
5823 INFO  (coreLoadExecutor-6-thread-2) [   ] o.a.s.c.SolrResourceLoader 
Adding 'file:/home/Hadoop/Solr/contrib/clustering/lib/carrot2-guava-18.0.jar' 
to classloader 
5823 INFO  (coreLoadExecutor-6-thread-2) [   ] o.a.s.c.SolrResourceLoader 
Adding 'file:/home/Hadoop/Solr/contrib/clustering/lib/attributes-binder1.3.1.jar' 
to classloader 
5823 INFO  (coreLoadExecutor-6-thread-2) [   ] o.a.s.c.SolrResourceLoader 
Adding 'file:/home/Hadoop/Solr/contrib/clustering/lib/simple-xml-2.7.1.jar' 
to classloader 
…………………………………………………………………………………………………………………………………………………………………………………………………………… 
…………………………………………………………………………………………………………………………………………………………………………………………………. 
12901 INFO  (coreLoadExecutor-6-thread-1) [   x:Solr_sample] o.a.s.u.UpdateLog 
Took 24.0ms to seed version buckets with highest version 1546058939881226240 12902 
INFO  (coreLoadExecutor-6-thread-1) [   x:Solr_sample] 
o.a.s.c.CoreContainer registering core: Solr_sample 
12904 INFO  (coreLoadExecutor-6-thread-2) [   x:my_core] o.a.s.u.UpdateLog Took 
16.0ms to seed version buckets with highest version 1546058939894857728 
12904 INFO  (coreLoadExecutor-6-thread-2) [   x:my_core] o.a.s.c.CoreContainer 
registering core: my_core 

在其他埠上啟動 Solr

使用 **start** 命令的 **–p 選項**，我們可以在其他埠上啟動 Solr，如下面的程式碼塊所示。

[Hadoop@localhost bin]$ ./Solr start -p 8984  

Waiting up to 30 seconds to see Solr running on port 8984 [-]   
Started Solr server on port 8984 (pid = 10137). Happy searching!

停止 Solr

您可以使用 **stop** 命令停止 Solr。

$ ./Solr stop

此命令停止 Solr，並顯示如下所示的訊息。

Sending stop command to Solr running on port 8983 ... waiting 5 seconds to 
allow Jetty process 6035 to stop gracefully.

重啟 Solr

Solr 的 **restart** 命令會停止 Solr 5 秒鐘，然後再次啟動它。您可以使用以下命令重啟 Solr -

./Solr restart 

此命令重啟 Solr，並顯示以下訊息 -

Sending stop command to Solr running on port 8983 ... waiting 5 seconds to 
allow Jetty process 6671 to stop gracefully. 
Waiting up to 30 seconds to see Solr running on port 8983 [|]  [/]   
Started Solr server on port 8983 (pid = 6906). Happy searching!

Solr ─ help 命令

Solr 的 **help** 命令可用於檢查 Solr 提示及其選項的使用方法。

[Hadoop@localhost bin]$ ./Solr -help  

Usage: Solr COMMAND OPTIONS        
   where COMMAND is one of: start, stop, restart, status, healthcheck, 
create, create_core, create_collection, delete, version, zk  
Standalone server example (start Solr running in the background on port 8984):  
   ./Solr start -p 8984  
SolrCloud example (start Solr running in SolrCloud mode using localhost:2181 
to connect to Zookeeper, with 1g max heap size and remote Java debug options enabled):  
   ./Solr start -c -m 1g -z localhost:2181 -a "-Xdebug -
   Xrunjdwp:transport = dt_socket,server = y,suspend = n,address = 1044"  
Pass -help after any COMMAND to see command-specific usage information,   
such as: ./Solr start -help or ./Solr stop -help 

Solr ─ status 命令

Solr 的 **status** 命令可用於搜尋和查詢計算機上正在執行的 Solr 例項。它可以為您提供有關 Solr 例項的資訊，例如其版本、記憶體使用情況等。

您可以使用以下 status 命令檢查 Solr 例項的狀態 -

[Hadoop@localhost bin]$ ./Solr status 

執行上述命令後，Solr 的狀態將顯示如下 -

Found 1 Solr nodes:   

Solr process 6906 running on port 8983 {   
   "Solr_home":"/home/Hadoop/Solr/server/Solr",   
   "version":"6.2.0 764d0f19151dbff6f5fcd9fc4b2682cf934590c5 - 
   mike - 2016-08-20 05:41:37",   
   "startTime":"2016-09-20T06:00:02.877Z",   
   "uptime":"0 days, 0 hours, 5 minutes, 14 seconds",   
   "memory":"30.6 MB (%6.2) of 490.7 MB"
} 

Solr 管理員

啟動 Apache Solr 後，您可以使用以下 URL 訪問 **Solr Web 介面** 的主頁。

Localhost:8983/Solr/

Solr Admin 的介面如下所示 -