I'm facing the same issue, and the symptoms seems to be the same. A concurrent INSERT INTO... ON DUPLICATE UPDATE.
I'm getting messages like these in the log (when wrep_debug is ON):
130801 10:51:23 [Note] WSREP: empty rbr buffer, query: INSERT INTO `catalogsearch_result` (`query_id`, `product_id`, `relevance`) VALUES (3616, 18815, 1.709000) ON DUPLICATE KEY UPDATE `relevance` = 1.709000
Until it crashes with a similar stacktrace as the one reported earlier.
I'm facing the same issue, and the symptoms seems to be the same. A concurrent INSERT INTO... ON DUPLICATE UPDATE.
I'm getting messages like these in the log (when wrep_debug is ON):
130801 10:51:23 [Note] WSREP: empty rbr buffer, query: INSERT INTO `catalogsearch_ result` (`query_id`, `product_id`, `relevance`) VALUES (3616, 18815, 1.709000) ON DUPLICATE KEY UPDATE `relevance` = 1.709000
Until it crashes with a similar stacktrace as the one reported earlier.