than you for your follow up 1) I am getting following error repeatedly whenever the evicted node is about to be persisted to store (DB) Feb 12, 2009 10:47:49 AM org.jboss.cache.loader.AdjListJDBCCacheLoader insertNode | SEVERE: Failed to insert node :A syntax error has occurred. | 2) I have checked and following SQL fails (syntax errors) marked in red | deleteNodeSql = DELETE FROM jbosscache WHERE fqn = ? | selectChildNamesSql = SELECT fqn FROM jbosscache WHERE parent = ? | deleteAllSql = DELETE FROM jbosscache | | selectChildFqnsSql = SELECT fqn FROM jbosscache WHERE parent = ? | | insertNodeSql = INSERT INTO jbosscache (fqn, node , parent) SELECT ?, ?, ? FROM jbosscache_D WHERE NOT EXISTS (SELECT fqn FROM jbosscache WHERE fqn = ?) | | | updateNodeSql = UPDATE jbosscache SET node = ? WHERE fqn = ? | selectNodeSql = SELECT node FROM jbosscache WHERE fqn = ? | | createTableDDL = CREATE TABLE jbosscache(fqn VARCHAR(255) NOT NULL, node blob, parent VARCHAR(255), CONSTRAINT jbosscache_pk PRIMARY KEY (fqn)) | | dropTableDDL = DROP TABLE jbosscache | 3) Actually i have quoted the correct DDL, create table generating syntax error is createTableDDL = CREATE TABLE jbosscache(fqn VARCHAR(255) NOT NULL, node blob, parent VARCHAR(255), CONSTRAINT jbosscache_pk PRIMARY KEY (fqn)) | It is primary key constraint syntax which is generating error Regards Atif View the original post : http://www.jboss.org/index.html?module=bb&op=viewtopic&p=4209349#... Reply to the post : http://www.jboss.org/index.html?module=bb&op=posting&mode=reply&a...