how to delete all the records from solr index

Question

I am using solr to full text search.

I am new to solr and trying to delete the records from the solr index by php solarium client I am using the following code to delete the records:

include_once("vendor/autoload.php");
$client = new Solarium\Client();

if(isset($_POST['delete']))
{
    $update = $client->createUpdate();

    // add the delete query and a commit command to the update query
    $update->addDeleteQuery('*:*');
    $update->addCommit();

    // this executes the query and returns the result
    $result = $client->update($update);

    echo '<b>Update query executed</b><br/>';
    echo 'Query status: ' . $result->getStatus(). '<br/>';
    echo 'Query time: ' . $result->getQueryTime();
}

But it is giving me the following error on browser:

Fatal error: Uncaught exception 'Solarium\\Exception\\HttpException' with message 'Solr HTTP error: OK (500) {"responseHeader":{"status":500,"QTime":1},"error":{"trace":"java.lang.NullPointerException\\n\\tat org.apache.lucene.search.BooleanClause.hashCode(BooleanClause.java:99)\\n\\tat java.util.AbstractList.hashCode(AbstractList.java:542)\\n\\tat org.apache.lucene.search.BooleanQuery.hashCode(BooleanQuery.java:520)\\n\\tat java.util.HashMap.put(HashMap.java:389)\\n\\tat org.apache.lucene.index.BufferedUpdates.addQuery(BufferedUpdates.java:152)\\n\\tat org.apache.lucene.index.DocumentsWriterDeleteQueue$QueryArrayNode.apply(DocumentsWriterDeleteQueue.java:365)\\n\\tat org.apache.lucene.index.DocumentsWriterDeleteQueue$DeleteSlice.apply(DocumentsWriterDeleteQueue.java:280)\\n\\tat org.apache.lucene.index.DocumentsWriterDeleteQueue.tryApplyGlobalSlice(DocumentsWriterDeleteQueue.java:200)\\n\\tat org.apache.lucene.index.DocumentsWriterDeleteQueue.addDelete(DocumentsWriterDeleteQueue.java:107)\\n\\tat org.apach e.lucene.index.DocumentsWriter.delete in /var/www/library/Solarium/Core/Query/Result/Result.php on line 103

Answer 1

Use following query to delete your records from solr -

1. DOMAIN:[PORT]/solr/#/collection1/query
2. Change Request-Handler (qt) "/select" to "/delete"
3. For delete all records q = : and press enter
4. For delete specific id id: and press enter

Answer 2

if you want to delete all the index then u can use the browser also. Just copy and paste the following link in the browser. http://localhost:8983/solr/update?stream.body=:&commit=true