Kwangwon (Trey) Yi created ZEPPELIN-6274:
--------------------------------------------
Summary: Improve Zeppelin Search: Graceful Handling of Leading
Wildcard Queries
Key: ZEPPELIN-6274
URL: https://issues.apache.org/jira/browse/ZEPPELIN-6274
Project: Zeppelin
Issue Type: Improvement
Reporter: Kwangwon (Trey) Yi
Assignee: Kwangwon (Trey) Yi
When users perform searches with leading wildcards (e.g., {{{}*python{}}},
{{{}?python{}}}) in Zeppelin’s notebook search, the server logs unnecessary
error stack traces, even though the UI does not show an error. This ticket aims
to handle such cases more gracefully to reduce noise in server logs.
Server log example:
```
INFO [2025-08-03 17:50:48,694] (org.apache.zeppelin.rest.NotebookRestApi)
(\{qtp1992550266-34} NotebookRestApi.java[search]:1189) - Searching notes for:
*yi ERROR [2025-08-03 17:50:48,718] (org.apache.zeppelin.search.LuceneSearch)
(\{qtp1992550266-34} LuceneSearch.java[query]:144) - Failed to parse query *yi
org.apache.lucene.queryparser.classic.ParseException: Cannot parse '*yi': '*'
or '?' not allowed as first character in WildcardQuery at
org.apache.lucene.queryparser.classic.QueryParserBase.parse(QueryParserBase.java:114)
at org.apache.zeppelin.search.LuceneSearch.query(LuceneSearch.java:130) at
org.apache.zeppelin.rest.NotebookRestApi.search(NotebookRestApi.java:1195) at
java.base/jdk.internal.reflect.NativeMethodAccessorImpl.invoke0(Native Method)
at
java.base/jdk.internal.reflect.NativeMethodAccessorImpl.invoke(NativeMethodAccessorImpl.java:62)
at
java.base/jdk.internal.reflect.DelegatingMethodAccessorImpl.invoke(DelegatingMethodAccessorImpl.java:43)
at java.base/java.lang.reflect.Method.invoke(Method.java:566) at
org.glassfish.jersey.server.model.internal.ResourceMethodInvocationHandlerFactory.lambda$static$0(ResourceMethodInvocationHandlerFactory.java:52)
at
org.glassfish.jersey.server.model.internal.AbstractJavaResourceMethodDispatcher$1.run(AbstractJavaResourceMethodDispatcher.java:146)
at
org.glassfish.jersey.server.model.internal.AbstractJavaResourceMethodDispatcher.invoke(AbstractJavaResourceMethodDispatcher.java:189)
at
org.glassfish.jersey.server.model.internal.JavaResourceMethodDispatcherProvider$ResponseOutInvoker.doDispatch(JavaResourceMethodDispatcherProvider.java:176)
at
org.glassfish.jersey.server.model.internal.AbstractJavaResourceMethodDispatcher.dispatch(AbstractJavaResourceMethodDispatcher.java:93)
at
org.glassfish.jersey.server.model.ResourceMethodInvoker.invoke(ResourceMethodInvoker.java:478)
at
org.glassfish.jersey.server.model.ResourceMethodInvoker.apply(ResourceMethodInvoker.java:400)
at
org.glassfish.jersey.server.model.ResourceMethodInvoker.apply(ResourceMethodInvoker.java:81)
at org.glassfish.jersey.server.ServerRuntime$1.run(ServerRuntime.java:274) at
org.glassfish.jersey.internal.Errors$1.call(Errors.java:248) at
org.glassfish.jersey.internal.Errors$1.call(Errors.java:244) at
org.glassfish.jersey.internal.Errors.process(Errors.java:292) at
org.glassfish.jersey.internal.Errors.process(Errors.java:274) at
org.glassfish.jersey.internal.Errors.process(Errors.java:244) at
org.glassfish.jersey.process.internal.RequestScope.runInScope(RequestScope.java:266)
at org.glassfish.jersey.server.ServerRuntime.process(ServerRuntime.java:253)
at
org.glassfish.jersey.server.ApplicationHandler.handle(ApplicationHandler.java:696)
at
org.glassfish.jersey.servlet.WebComponent.serviceImpl(WebComponent.java:397) at
org.glassfish.jersey.servlet.WebComponent.service(WebComponent.java:349) at
org.glassfish.jersey.servlet.ServletContainer.service(ServletContainer.java:358)
at
org.glassfish.jersey.servlet.ServletContainer.service(ServletContainer.java:312)
at
org.glassfish.jersey.servlet.ServletContainer.service(ServletContainer.java:205)
at org.eclipse.jetty.servlet.ServletHolder.handle(ServletHolder.java:764) at
org.eclipse.jetty.servlet.ServletHandler$ChainEnd.doFilter(ServletHandler.java:1665)
at org.apache.zeppelin.server.CorsFilter.doFilter(CorsFilter.java:70) at
org.eclipse.jetty.servlet.FilterHolder.doFilter(FilterHolder.java:202) at
org.eclipse.jetty.servlet.ServletHandler$Chain.doFilter(ServletHandler.java:1635)
at
org.eclipse.jetty.websocket.servlet.WebSocketUpgradeFilter.doFilter(WebSocketUpgradeFilter.java:170)
at org.eclipse.jetty.servlet.FilterHolder.doFilter(FilterHolder.java:202) at
org.eclipse.jetty.servlet.ServletHandler$Chain.doFilter(ServletHandler.java:1635)
at org.eclipse.jetty.servlet.ServletHandler.doHandle(ServletHandler.java:527)
at
org.eclipse.jetty.server.handler.ScopedHandler.handle(ScopedHandler.java:131)
at org.eclipse.jetty.security.SecurityHandler.handle(SecurityHandler.java:598)
at
org.eclipse.jetty.server.handler.HandlerWrapper.handle(HandlerWrapper.java:122)
at
org.eclipse.jetty.server.handler.ScopedHandler.nextHandle(ScopedHandler.java:223)
at
org.eclipse.jetty.server.session.SessionHandler.doHandle(SessionHandler.java:1580)
at
org.eclipse.jetty.server.handler.ScopedHandler.nextHandle(ScopedHandler.java:221)
at
org.eclipse.jetty.server.handler.ContextHandler.doHandle(ContextHandler.java:1381)
at
org.eclipse.jetty.server.handler.ScopedHandler.nextScope(ScopedHandler.java:176)
at org.eclipse.jetty.servlet.ServletHandler.doScope(ServletHandler.java:484)
at
org.eclipse.jetty.server.session.SessionHandler.doScope(SessionHandler.java:1553)
at
org.eclipse.jetty.server.handler.ScopedHandler.nextScope(ScopedHandler.java:174)
at
org.eclipse.jetty.server.handler.ContextHandler.doScope(ContextHandler.java:1303)
at
org.eclipse.jetty.server.handler.ScopedHandler.handle(ScopedHandler.java:129)
at
org.eclipse.jetty.server.handler.ContextHandlerCollection.handle(ContextHandlerCollection.java:192)
at io.micrometer.jetty11.TimedHandler.handle(TimedHandler.java:129) at
org.eclipse.jetty.server.handler.HandlerWrapper.handle(HandlerWrapper.java:122)
at org.eclipse.jetty.server.Server.handle(Server.java:563) at
org.eclipse.jetty.server.HttpChannel$RequestDispatchable.dispatch(HttpChannel.java:1598)
at org.eclipse.jetty.server.HttpChannel.dispatch(HttpChannel.java:753) at
org.eclipse.jetty.server.HttpChannel.handle(HttpChannel.java:501) at
org.eclipse.jetty.server.HttpConnection.onFillable(HttpConnection.java:287) at
org.eclipse.jetty.io.AbstractConnection$ReadCallback.succeeded(AbstractConnection.java:314)
at org.eclipse.jetty.io.FillInterest.fillable(FillInterest.java:100) at
org.eclipse.jetty.io.SelectableChannelEndPoint$1.run(SelectableChannelEndPoint.java:53)
at
org.eclipse.jetty.util.thread.QueuedThreadPool.runJob(QueuedThreadPool.java:969)
at
org.eclipse.jetty.util.thread.QueuedThreadPool$Runner.doRunJob(QueuedThreadPool.java:1194)
at
org.eclipse.jetty.util.thread.QueuedThreadPool$Runner.run(QueuedThreadPool.java:1149)
at java.base/java.lang.Thread.run(Thread.java:829) Caused by:
org.apache.lucene.queryparser.classic.ParseException: '*' or '?' not allowed as
first character in WildcardQuery at
org.apache.lucene.queryparser.classic.QueryParserBase.getWildcardQuery(QueryParserBase.java:700)
at
org.apache.lucene.queryparser.classic.MultiFieldQueryParser.getWildcardQuery(MultiFieldQueryParser.java:245)
at
org.apache.lucene.queryparser.classic.MultiFieldQueryParser.getWildcardQuery(MultiFieldQueryParser.java:241)
at
org.apache.lucene.queryparser.classic.QueryParserBase.handleBareTokenQuery(QueryParserBase.java:820)
at
org.apache.lucene.queryparser.classic.QueryParser.Term(QueryParser.java:469) at
org.apache.lucene.queryparser.classic.QueryParser.Clause(QueryParser.java:355)
at
org.apache.lucene.queryparser.classic.QueryParser.Query(QueryParser.java:244)
at
org.apache.lucene.queryparser.classic.QueryParser.TopLevelQuery(QueryParser.java:215)
at
org.apache.lucene.queryparser.classic.QueryParserBase.parse(QueryParserBase.java:109)
... 65 more
```
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