VMware Greenplum Text Configuration Parameters

VMware Greenplum Text configuration parameters can be overridden by setting a new value in a VMware Greenplum session. Changes made to configuration parameters only affect future VMware Greenplum Text operations; existing indexes use the parameter values that were set when they were created.

See Changing VMware Greenplum Text Server Configuration Parameters for information about changing configuration parameters and examples.

The following table lists the VMware Greenplum Text configuration parameters with their defaults and value constraints.

Parameter Name	Description	Minimum	Maximum	Default
admin_timeout	Timeout, in seconds, for admin requests (create_index, etc.).	30	INT_MAX	3600
commit_timeout	Timeout, in seconds, for prepare commit and commit operations.	30	INT_MAX	3600
delete_timeout	Timeout, in seconds, for delete requests.	30	INT_MAX	3600
extension_factor	Maximum number of replicas that can be added for an index per VMware Greenplum Text node after the index is created.	0	10	2
facet_timeout	Timeout, in seconds, for faceting queries.	30	INT_MAX	3600
failover_factor	Minimum ratio of Solr nodes that must be up in order to create a new index. (SolrNodesUp/TotalSolrNodes)	0.0	1.0	0.8
hl_post_tag	Markup that gptext.highlight() and gptext.highlight_instant_content() inserts after terms in search results.			'</em>'
hl_pre_tag	Markup that gptext.highlight() and gptext.highlight_instant_content() inserts before terms in search results.			'<em>'
idx_buffer_size	Size of indexing buffer in bytes.	16777216	536870912	134217728
idx_delim	Delimiter to use during indexing.			comma ','
idx_encapsulator	The character optionally used to surround values to preserve characters such as the CSV separator or whitespace.			quote '"'
idx_escape	Escape character to use for indexing.			backslash '\'
idx_num_shards	The number of shards to create for indexes that use the Solr CompositeId router. When 0, the default, the number of shards is the same as the number of VMware Greenplum segments. When the index allows non-unique document IDs, the Solr Implicit router is used, and the number of shards is always equal to the number of VMware Greenplum primary segments.	0	1024	0
index_timeout	Timeout, in seconds, for receiving response to indexing operation.	30	INT_MAX	3600
optimize_timeout	Timeout, in seconds, for optimize operations.	30	INT_MAX	3600
ping_timeout	Timeout, in seconds, for ping requests.	30	INT_MAX	120
replication_factor	The number of replicas per shard for a newly created index.	1	10	2
replication_timeout	Timeout, in seconds, for replication operations (backup, restore).	30	INT_MAX	43200
rollback_timeout	Timeout, in seconds, for rollback operations.	30	INT_MAX	3600
search_batch_size	Batch size for search requests.	1	INT_MAX	2500000
search_buffer_size	Buffer size for search results, in bytes.	4096	67108864	16777216
search_param_separator	Delimiter to use in the options parameter of the gptext.search() UDF.			'&'
search_post_buffer_size	Post buffer size for search, in bytes.	512	4194304	4096
search_timeout	Timeout, in seconds, for searches.	30	INT_MAX	600
stats_timeout	Timeout, in seconds, for obtaining statistics.	30	INT_MAX	600
idx_segment_error_limit	Limit for indexing errors per segment. If this value is exceeded on any segment, the indexing operation is stopped.	1	INT_MAX	10
terms_batch_size	Batch size for terms operations.	1	INT_MAX	1000