You need a system configured to use Solr for global search. Indexing should be up-to-date. On the Site administration / Server / Tasks / Scheduled tasks page, find the Global search indexing task and temporarily set it to disabled, to ensure it doesn't run during the test. Using a text editor tool on your computer, create a file called search.txt containing the word 'Bananasplit'. (It can have other text as well if you like, the point is just to make up a unique word that's easy to search for. Make sure you don't type it anywhere else.) Go to any website and add an HTML block (turn editing on, expand the block drawer at the right, click 'Add a block', and choose 'Text' option which corresponds to the HTML block). Edit the block (click the cogwheel icon and choose Configure). Type a title for the block (doesn't matter what). In the 'Content' form field, type some text then click the 'Manage files' icon. Drag and drop the text file from your desktop to add it to the files. Close the file manager and click 'Save changes'. Back in Site administration / Server / Tasks / Scheduled tasks , find Global search indexing task and turn it on again (you might want to configure it to run right away). Go to Site administration / Server / Tasks / Task logs . Filter the logs e.g. on class name 'search' to show only the global search indexing runs. Wait for the indexing task to run (you can hit reload on this page to see when it appears). You need to check the first run after you un-disabled it. Click to view the logs for this first run. EXPECTED: Under the heading 'Processing area: HTML block content' you should see a document indexed, e.g. 'Processed 1 records containing 1 documents...' EXPECTED: Under that heading you should not see any error lines of the form 'Error while indexing file...InputStream must have > 0 bytes'. Using the search box at the top of the page, search for 'bananasplit'. Expected: It should show one result in your text file in the block.