# index_converter command reference¶

index_converter is a tool for converting indexes created with Sphinx/Manticore Search 2.x to Manticore Search 3.x index format.

The tool can be used in several different ways:

Convert one index at a time:

$index_converter --config /home/myuser/sphinx.conf --index indexname  Convert all indexes: $ index_converter --config /home/myuser/sphinx.conf --all


Convert indexes found in a folder:

$index_converter --path /var/lib/manticoresearch/data --all  New version of the index is written by default in the same folder. Previous version files are saved with .old extension in their name. An exception is .spp (hitlists) file which is the only index component that didn’t have any change in the new format. You can save the new index version to a different folder using –output-dir option $ index_converter --config /home/myuser/sphinx.conf --all --output-dir /new/path


A special case is for indexes containing kill-lists. As the behaviour of how kill-lists works has changed (see killlist_target), the delta index should know which are the target indexes for applying the kill-lists There are 3 ways to have a converted index ready for setting targeted indexes for applying kill-lists:

• Use –killlist-target when converting an index
\$ index_converter --config /home/myuser/sphinx.conf --index deltaindex --killlist-target mainindex:kl

• Add killlist_target in the configuration before doing the conversion
• use ALTER … KILLLIST_TARGET command after conversion

A complete list of index_converter options:

• --config <file> (-c <file> for short) tells index_converter to use the given file as its configuration. Normally, it will look for sphinx.conf in the installation directory (e.g. /usr/local/sphinx/etc/sphinx.conf if installed into /usr/local/sphinx), followed by the current directory you are in when calling index_converter from the shell.
• --index specifies which index should be converted
• --path - instead of using a config file, a path containing index(es) can be used
• --strip-path - strips path from filenames referenced by index: stopwords, exceptions and wordforms
• --large-docid - allows to convert documents with ids larger than 2^63 and display a warning, otherwise it will just exit on the large id with an error. This option was added as in Manticore 3.x doc ids are signed bigint, while previously they were unsigned
• --output-dir <dir> - writes the new files in a chosen folder rather than the same location as with the existing index files. When this option set, existing index files will remain untouched at their location.
• --all - converts all indexes from the config
• --killlist-target <targets> - sets the target indexes for which kill-lists will be applied. This option should be used only in conjunction with --index option