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  1. ,
    Expert tip

    MySQL doesn't support some types of characters (such as emojis) with the utf8 encoding. You need to be on MySQL 5.5+ and force utf8mb4 (everywhere, client and server). You can do this sending the query "SET NAMES utf8mb4". Check this https://goo.gl/3E2qzg

  2. ,

    Make sure you are using InnoDB storage engine and READ-COMMITTED transaction isolation level and increase the database server innodb_lock_wait_timeout variable to about 500.

Solutions on the web

via XWiki.org JIRA by Sorin Burjan, 1 year ago
Error number 3201 in 3: Exception while saving document workspacetemplate:Main.Welcome Wrapped Exception: Failed to commit or rollback transaction. Root cause []
via XWiki.org JIRA by Sorin Burjan, 1 year ago
Error number 3201 in 3: Exception while saving document xwiki:XWiki.WatchListJobClass Wrapped Exception: Error number 3301 in 3: Exception while switching to database xwiki Wrapped Exception: Database xwiki needs migration(s), it could not be safely used!
via XWiki.org JIRA by Sorin Burjan, 1 year ago
Error number 3201 in 3: Exception while saving document xwiki:XWiki.WatchListJobClass Wrapped Exception: Error number 3301 in 3: Exception while switching to database xwiki Wrapped Exception: Database xwiki needs migration(s), it could not be safely used!
via XWiki.org JIRA by Jeroen Baten, 1 year ago
Error number 3201 in 3: Exception while saving document xwiki:IntraZis Promotieteam.Ziekenhuizen in Nederland Wrapped Exception: Failed to commit or rollback transaction. Root cause []
via XWiki.org JIRA by Philipp Roessler, 1 year ago
Error number 3201 in 3: Exception while saving document Skins.MySkin Wrapped Exception: Could not execute JDBC batch update
via XWiki.org JIRA by Jean-Vincent Drean, 1 year ago
Error number 3201 in 3: Exception while saving document xwiki:Main.NewPage Wrapped Exception: Failed to commit or rollback transaction. Root cause []
java.sql.SQLException: Incorrect string value: '\xC4\xAB t\xC4\xAB...' for column 'XWD_CONTENT' at row 1	at com.mysql.jdbc.SQLError.createSQLException(SQLError.java:1074)	at com.mysql.jdbc.MysqlIO.checkErrorPacket(MysqlIO.java:4096)	at com.mysql.jdbc.MysqlIO.checkErrorPacket(MysqlIO.java:4028)	at com.mysql.jdbc.MysqlIO.sendCommand(MysqlIO.java:2490)	at com.mysql.jdbc.MysqlIO.sqlQueryDirect(MysqlIO.java:2651)	at com.mysql.jdbc.ConnectionImpl.execSQL(ConnectionImpl.java:2734)	at com.mysql.jdbc.PreparedStatement.executeInternal(PreparedStatement.java:2155)	at com.mysql.jdbc.PreparedStatement.executeUpdate(PreparedStatement.java:2458)	at com.mysql.jdbc.PreparedStatement.executeBatchSerially(PreparedStatement.java:2006)	at com.mysql.jdbc.PreparedStatement.executeBatch(PreparedStatement.java:1467)	at org.apache.commons.dbcp.DelegatingStatement.executeBatch(DelegatingStatement.java:297)	at org.apache.commons.dbcp.DelegatingStatement.executeBatch(DelegatingStatement.java:297)	at org.apache.commons.dbcp.DelegatingStatement.executeBatch(DelegatingStatement.java:297)	at org.hibernate.jdbc.BatchingBatcher.doExecuteBatch(BatchingBatcher.java:70)	at org.hibernate.jdbc.AbstractBatcher.executeBatch(AbstractBatcher.java:268)	at org.hibernate.engine.ActionQueue.executeActions(ActionQueue.java:268)	at org.hibernate.engine.ActionQueue.executeActions(ActionQueue.java:184)	at org.hibernate.event.def.AbstractFlushingEventListener.performExecutions(AbstractFlushingEventListener.java:321)	at org.hibernate.event.def.DefaultFlushEventListener.onFlush(DefaultFlushEventListener.java:51)	at org.hibernate.impl.SessionImpl.flush(SessionImpl.java:1216)	at org.hibernate.impl.SessionImpl.managedFlush(SessionImpl.java:383)	at org.hibernate.transaction.JDBCTransaction.commit(JDBCTransaction.java:133)	at com.xpn.xwiki.store.XWikiHibernateBaseStore.endTransaction(XWikiHibernateBaseStore.java:957)	at com.xpn.xwiki.store.XWikiHibernateStore.saveXWikiDoc(XWikiHibernateStore.java:701)	at com.xpn.xwiki.store.XWikiCacheStore.saveXWikiDoc(XWikiCacheStore.java:177)	at com.xpn.xwiki.store.XWikiCacheStore.saveXWikiDoc(XWikiCacheStore.java:170)	at com.xpn.xwiki.XWiki.saveDocument(XWiki.java:1358)	at com.xpn.xwiki.XWiki.saveDocument(XWiki.java:1314)	at com.xpn.xwiki.plugin.packaging.Package.installDocument(Package.java:849)	at com.xpn.xwiki.plugin.packaging.Package.install(Package.java:664)	at com.xpn.xwiki.plugin.packaging.PackageAPI.install(PackageAPI.java:316)	at com.xpn.xwiki.plugin.wikimanager.WikiCopy.importPackage(WikiCopy.java:249)	at com.xpn.xwiki.plugin.wikimanager.WikiManager.createNewWiki(WikiManager.java:471)	at com.xpn.xwiki.plugin.wikimanager.WikiManager.createNewWikiFromPackage(WikiManager.java:328)	at com.xpn.xwiki.plugin.wikimanager.WikiManager.createWikiTemplate(WikiManager.java:755)	at com.xpn.xwiki.plugin.wikimanager.WikiManagerPluginApi.createWikiTemplate(WikiManagerPluginApi.java:654)	at com.xpn.xwiki.plugin.wikimanager.internal.WikiManagerScriptService.createWikiTemplate(WikiManagerScriptService.java:225)	at sun.reflect.NativeMethodAccessorImpl.invoke0(Native Method)	at sun.reflect.NativeMethodAccessorImpl.invoke(NativeMethodAccessorImpl.java:57)	at sun.reflect.DelegatingMethodAccessorImpl.invoke(DelegatingMethodAccessorImpl.java:43)	at java.lang.reflect.Method.invoke(Method.java:616)	at org.apache.velocity.util.introspection.UberspectImpl$VelMethodImpl.doInvoke(UberspectImpl.java:395)	at org.apache.velocity.util.introspection.UberspectImpl$VelMethodImpl.invoke(UberspectImpl.java:384)	at org.apache.velocity.runtime.parser.node.ASTMethod.execute(ASTMethod.java:173)	at org.apache.velocity.runtime.parser.node.ASTReference.execute(ASTReference.java:280)	at org.apache.velocity.runtime.parser.node.ASTReference.value(ASTReference.java:567)	at org.apache.velocity.runtime.parser.node.ASTExpression.value(ASTExpression.java:71)	at org.apache.velocity.runtime.parser.node.ASTSetDirective.render(ASTSetDirective.java:142)	at org.apache.velocity.runtime.parser.node.ASTBlock.render(ASTBlock.java:72)	at org.apache.velocity.runtime.parser.node.ASTIfStatement.render(ASTIfStatement.java:87)	at org.apache.velocity.runtime.parser.node.ASTBlock.render(ASTBlock.java:72)	at org.apache.velocity.runtime.parser.node.ASTIfStatement.render(ASTIfStatement.java:87)	at org.apache.velocity.runtime.parser.node.ASTBlock.render(ASTBlock.java:72)	at org.apache.velocity.runtime.parser.node.ASTIfStatement.render(ASTIfStatement.java:87)	at org.apache.velocity.runtime.parser.node.ASTBlock.render(ASTBlock.java:72)	at org.apache.velocity.runtime.parser.node.ASTIfStatement.render(ASTIfStatement.java:87)	at org.apache.velocity.runtime.parser.node.SimpleNode.render(SimpleNode.java:342)	at org.xwiki.velocity.internal.DefaultVelocityEngine.evaluate(DefaultVelocityEngine.java:228)	at org.xwiki.velocity.internal.DefaultVelocityEngine.evaluate(DefaultVelocityEngine.java:187)	at org.xwiki.rendering.internal.macro.velocity.VelocityMacro.evaluateString(VelocityMacro.java:124)	at org.xwiki.rendering.internal.macro.velocity.VelocityMacro.evaluateString(VelocityMacro.java:50)	at org.xwiki.rendering.macro.script.AbstractScriptMacro.evaluateBlock(AbstractScriptMacro.java:302)	at org.xwiki.rendering.macro.script.AbstractScriptMacro.execute(AbstractScriptMacro.java:198)	at org.xwiki.rendering.macro.script.AbstractScriptMacro.execute(AbstractScriptMacro.java:59)	at org.xwiki.rendering.internal.transformation.macro.MacroTransformation.transformOnce(MacroTransformation.java:185)	at org.xwiki.rendering.internal.transformation.macro.MacroTransformation.transform(MacroTransformation.java:132)	at org.xwiki.rendering.internal.transformation.DefaultTransformationManager.performTransformations(DefaultTransformationManager.java:87)	at org.xwiki.display.internal.DocumentContentDisplayer.display(DocumentContentDisplayer.java:250)	at org.xwiki.display.internal.DocumentContentDisplayer.display(DocumentContentDisplayer.java:124)	at org.xwiki.display.internal.DocumentContentDisplayer.display(DocumentContentDisplayer.java:54)	at org.xwiki.display.internal.DefaultDocumentDisplayer.display(DefaultDocumentDisplayer.java:80)	at org.xwiki.display.internal.DefaultDocumentDisplayer.display(DefaultDocumentDisplayer.java:38)	at org.xwiki.sheet.internal.SheetDocumentDisplayer.display(SheetDocumentDisplayer.java:113)	at org.xwiki.sheet.internal.SheetDocumentDisplayer.display(SheetDocumentDisplayer.java:50)	at org.xwiki.display.internal.ConfiguredDocumentDisplayer.display(ConfiguredDocumentDisplayer.java:67)	at org.xwiki.display.internal.ConfiguredDocumentDisplayer.display(ConfiguredDocumentDisplayer.java:41)	at com.xpn.xwiki.doc.XWikiDocument.getRenderedContent(XWikiDocument.java:916)	at com.xpn.xwiki.doc.XWikiDocument.getRenderedContent(XWikiDocument.java:895)	at com.xpn.xwiki.doc.XWikiDocument.getRenderedContent(XWikiDocument.java:926)	at com.xpn.xwiki.api.Document.getRenderedContent(Document.java:603)	at sun.reflect.GeneratedMethodAccessor579.invoke(Unknown Source)	at sun.reflect.DelegatingMethodAccessorImpl.invoke(DelegatingMethodAccessorImpl.java:43)	at java.lang.reflect.Method.invoke(Method.java:616)	at org.apache.velocity.util.introspection.UberspectImpl$VelMethodImpl.doInvoke(UberspectImpl.java:395)	at org.apache.velocity.util.introspection.UberspectImpl$VelMethodImpl.invoke(UberspectImpl.java:384)	at org.apache.velocity.runtime.parser.node.ASTMethod.execute(ASTMethod.java:173)	at org.apache.velocity.runtime.parser.node.ASTReference.execute(ASTReference.java:280)	at org.apache.velocity.runtime.parser.node.ASTReference.value(ASTReference.java:567)	at org.apache.velocity.runtime.parser.node.ASTExpression.value(ASTExpression.java:71)	at org.apache.velocity.runtime.parser.node.ASTSetDirective.render(ASTSetDirective.java:142)	at org.apache.velocity.runtime.parser.node.ASTBlock.render(ASTBlock.java:72)	at org.apache.velocity.runtime.parser.node.SimpleNode.render(SimpleNode.java:342)	at org.apache.velocity.runtime.parser.node.ASTIfStatement.render(ASTIfStatement.java:106)	at org.apache.velocity.runtime.parser.node.SimpleNode.render(SimpleNode.java:342)	at org.xwiki.velocity.internal.DefaultVelocityEngine.evaluate(DefaultVelocityEngine.java:228)	at org.xwiki.velocity.internal.DefaultVelocityEngine.evaluate(DefaultVelocityEngine.java:187)	at com.xpn.xwiki.render.XWikiVelocityRenderer.evaluate(XWikiVelocityRenderer.java:105)	at com.xpn.xwiki.XWiki.evaluateTemplate(XWiki.java:1765)	at com.xpn.xwiki.XWiki.parseTemplate(XWiki.java:1705)	at com.xpn.xwiki.api.XWiki.parseTemplate(XWiki.java:854)	at sun.reflect.GeneratedMethodAccessor171.invoke(Unknown Source)	at sun.reflect.DelegatingMethodAccessorImpl.invoke(DelegatingMethodAccessorImpl.java:43)	at java.lang.reflect.Method.invoke(Method.java:616)	at org.apache.velocity.util.introspection.UberspectImpl$VelMethodImpl.doInvoke(UberspectImpl.java:395)	at org.apache.velocity.util.introspection.UberspectImpl$VelMethodImpl.invoke(UberspectImpl.java:384)	at org.apache.velocity.runtime.parser.node.ASTMethod.execute(ASTMethod.java:173)	at org.apache.velocity.runtime.parser.node.ASTReference.execute(ASTReference.java:280)	at org.apache.velocity.runtime.parser.node.ASTReference.render(ASTReference.java:369)	at org.apache.velocity.runtime.parser.node.ASTBlock.render(ASTBlock.java:72)	at org.apache.velocity.runtime.directive.VelocimacroProxy.render(VelocimacroProxy.java:216)	at org.apache.velocity.runtime.directive.RuntimeMacro.render(RuntimeMacro.java:311)	at org.apache.velocity.runtime.directive.RuntimeMacro.render(RuntimeMacro.java:230)	at org.apache.velocity.runtime.parser.node.ASTDirective.render(ASTDirective.java:207)	at org.apache.velocity.runtime.parser.node.ASTBlock.render(ASTBlock.java:72)	at org.apache.velocity.runtime.parser.node.ASTIfStatement.render(ASTIfStatement.java:87)	at org.apache.velocity.runtime.parser.node.ASTBlock.render(ASTBlock.java:72)	at org.apache.velocity.runtime.parser.node.SimpleNode.render(SimpleNode.java:342)	at org.apache.velocity.runtime.parser.node.ASTIfStatement.render(ASTIfStatement.java:106)	at org.apache.velocity.runtime.parser.node.SimpleNode.render(SimpleNode.java:342)	at org.xwiki.velocity.internal.DefaultVelocityEngine.evaluate(DefaultVelocityEngine.java:228)	at org.xwiki.velocity.internal.DefaultVelocityEngine.evaluate(DefaultVelocityEngine.java:187)	at com.xpn.xwiki.render.XWikiVelocityRenderer.evaluate(XWikiVelocityRenderer.java:105)	at com.xpn.xwiki.XWiki.evaluateTemplate(XWiki.java:1765)	at com.xpn.xwiki.web.Utils.parseTemplate(Utils.java:155)	at com.xpn.xwiki.web.XWikiAction.execute(XWikiAction.java:241)	at com.xpn.xwiki.web.XWikiAction.execute(XWikiAction.java:116)	at org.apache.struts.action.RequestProcessor.processActionPerform(RequestProcessor.java:431)	at org.apache.struts.action.RequestProcessor.process(RequestProcessor.java:236)	at org.apache.struts.action.ActionServlet.process(ActionServlet.java:1196)	at org.apache.struts.action.ActionServlet.doPost(ActionServlet.java:432)	at javax.servlet.http.HttpServlet.service(HttpServlet.java:641)	at javax.servlet.http.HttpServlet.service(HttpServlet.java:722)	at org.apache.catalina.core.ApplicationFilterChain.internalDoFilter(ApplicationFilterChain.java:304)	at org.apache.catalina.core.ApplicationFilterChain.doFilter(ApplicationFilterChain.java:210)	at com.xpn.xwiki.web.ActionFilter.doFilter(ActionFilter.java:120)	at org.apache.catalina.core.ApplicationFilterChain.internalDoFilter(ApplicationFilterChain.java:243)	at org.apache.catalina.core.ApplicationFilterChain.doFilter(ApplicationFilterChain.java:210)	at org.xwiki.wysiwyg.server.filter.ConversionFilter.doFilter(ConversionFilter.java:144)	at org.apache.catalina.core.ApplicationFilterChain.internalDoFilter(ApplicationFilterChain.java:243)	at org.apache.catalina.core.ApplicationFilterChain.doFilter(ApplicationFilterChain.java:210)	at com.xpn.xwiki.plugin.webdav.XWikiDavFilter.doFilter(XWikiDavFilter.java:66)	at org.apache.catalina.core.ApplicationFilterChain.internalDoFilter(ApplicationFilterChain.java:243)	at org.apache.catalina.core.ApplicationFilterChain.doFilter(ApplicationFilterChain.java:210)	at org.xwiki.container.servlet.filters.internal.SavedRequestRestorerFilter.doFilter(SavedRequestRestorerFilter.java:208)	at org.apache.catalina.core.ApplicationFilterChain.internalDoFilter(ApplicationFilterChain.java:243)	at org.apache.catalina.core.ApplicationFilterChain.doFilter(ApplicationFilterChain.java:210)	at org.xwiki.container.servlet.filters.internal.SetCharacterEncodingFilter.doFilter(SetCharacterEncodingFilter.java:111)	at org.apache.catalina.core.ApplicationFilterChain.internalDoFilter(ApplicationFilterChain.java:243)	at org.apache.catalina.core.ApplicationFilterChain.doFilter(ApplicationFilterChain.java:210)	at org.apache.catalina.core.StandardWrapperValve.invoke(StandardWrapperValve.java:224)	at org.apache.catalina.core.StandardContextValve.invoke(StandardContextValve.java:169)	at org.apache.catalina.authenticator.AuthenticatorBase.invoke(AuthenticatorBase.java:472)	at org.apache.catalina.core.StandardHostValve.invoke(StandardHostValve.java:168)	at org.apache.catalina.valves.ErrorReportValve.invoke(ErrorReportValve.java:100)	at org.apache.catalina.valves.AccessLogValve.invoke(AccessLogValve.java:929)	at org.apache.catalina.core.StandardEngineValve.invoke(StandardEngineValve.java:118)	at org.apache.catalina.connector.CoyoteAdapter.service(CoyoteAdapter.java:405)	at org.apache.coyote.http11.AbstractHttp11Processor.process(AbstractHttp11Processor.java:964)	at org.apache.coyote.AbstractProtocol$AbstractConnectionHandler.process(AbstractProtocol.java:515)	at org.apache.tomcat.util.net.JIoEndpoint$SocketProcessor.run(JIoEndpoint.java:302)	at java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1110)	at java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:603)	at java.lang.Thread.run(Thread.java:679)