Howto clear Solr index | Daniel Hepper

If you want to delete all items from Solr index, use the query

<delete><query>*:*</query></delete>

as described in the FAQ on the Solr Wiki.

But how do you actually send this query? You can use this command:

curl http://<host>:<port>/<solr_base>/update?commit=true -d '<delete><query>*:*</query></delete>'

Just replace the placeholders with the right values, e.g.

curl http://localhost:8983/solr/update?commit=true -d  '<delete><query>*:*</query></delete>'

If Solr responds with something like this:

HTTP Status 400 - missing content stream
Status report
message missing content stream
description The request sent by the client was syntactically incorrect (missing content stream).

then you are probably missing the commit parameter i.e. ?commit=true

15 thoughts on “Howto clear Solr index”

Awesome. Saved a lot of my time. Thanks!!

If I do this, I damage the solr database or something like that? I don’t understand my friend and I need your help, there’s my e-mail, please, answer

Thank you for the hint!

Hi,

Where should i type this curl command.is that in browser? I tried in command prompt. but command prompt doesn’t identify this curl command

Hi Rajdeep!

You have to enter it on the command prompt. However, curl might not be installed on your system.

You can get it here: http://curl.haxx.se/dlwiz/?type=bin

Hope that helps!

Command Lins are
Step 1. Match all docs query in a delete by query command: *:*
curl URL=http://localhost:8080/solr3.3/update --data-binary '*:*' -H 'Content-type:text/xml; charset=utf-8'

Step 2. Send the commit command to make sure all the changes are flushed
curl http://localhost:8080/solr3.3/update --data-binary '' -H 'Content-type:text/xml; charset=utf-8'

Following is the shell script
#!/bin/sh


URL=http://localhost:8080/solr3.3/update
#match all docs query in a delete by query command: *:*

curl $URL --data-binary '*:*' -H 'Content-type:text/xml; charset=utf-8'

#send the commit command to make sure all the changes are flushed and visible curl $URL --data-binary '' -H 'Content-type:text/xml; charset=utf-8' echo

Command Lins are
Step 1. Match all docs query in a delete by query command: ‘*:*

curl URL=http://localhost:8080/solr3.3/update –data-binary ‘*:* -H ‘Content-type:text/xml; charset=utf-8’

Step 2. Send the commit command to make sure all the changes are flushed

curl http://localhost:8080/solr3.3/update –data-binary ” -H ‘Content-type:text/xml; charset=utf-8’

Following is the shell script

#!/bin/sh

URL=http://localhost:8080/solr3.3/update

#match all docs query in a delete by query command: *:*
curl $URL –data-binary ‘*:*’ -H ‘Content-type:text/xml; charset=utf-8’

#send the commit command to make sure all the changes are flushed and visible
curl $URL –data-binary ” -H ‘Content-type:text/xml; charset=utf-8’
echo

#!/bin/sh

URL=http://localhost:8080/solr3.3/update

#match all docs query in a delete by query command: *:*
curl $URL --data-binary '*:*' -H 'Content-type:text/xml; charset=utf-8'

#send the commit command to make sure all the changes are flushed and visible
curl $URL --data-binary '' -H 'Content-type:text/xml; charset=utf-8'
echo