What is multiline size in logstash 2.4.0

Elastic Stack Logstash
1

hi ,
currently am using Logstash 2.4.0 and fetching error "multiline_codec_max_lines_reached".
my text is:

[jsp:154] java.lang.IllegalStateException: getAttribute: Session already invalidated
at org.apache.catalina.session.StandardSession.getAttribute(StandardSession.java:1062)
at org.apache.catalina.session.StandardSessionFacade.getAttribute(StandardSessionFacade.java:110)
at com.liferay.util.servlet.SharedSessionWrapper.getAttribute(SharedSessionWrapper.java:57)
at com.liferay.portlet.PortletSessionImpl.getAttribute(PortletSessionImpl.java:96)
at com.liferay.portlet.PortletSessionImpl.getAttribute(PortletSessionImpl.java:83)
at org.portletfaces.bridge.context.map.SessionMap.getProperty(SessionMap.java:99)
at org.portletfaces.bridge.util.AbstractPropertyMap.put(AbstractPropertyMap.java:128)
at org.portletfaces.bridge.util.AbstractPropertyMap.put(AbstractPropertyMap.java:29)
at com.sun.faces.mgbean.BeanManager$ScopeManager$SessionScopeHandler.handle(BeanManager.java:576)
at com.sun.faces.mgbean.BeanManager$ScopeManager.pushToScope(BeanManager.java:458)
at com.sun.faces.mgbean.BeanManager.createAndPush(BeanManager.java:410)
at com.sun.faces.mgbean.BeanManager.create(BeanManager.java:269)
at com.sun.faces.el.ManagedBeanELResolver.resolveBean(ManagedBeanELResolver.java:244)
at com.sun.faces.el.ManagedBeanELResolver.getValue(ManagedBeanELResolver.java:116)
at com.sun.faces.el.DemuxCompositeELResolver._getValue(DemuxCompositeELResolver.java:176)
at com.sun.faces.el.DemuxCompositeELResolver.getValue(DemuxCompositeELResolver.java:203)
at org.apache.el.parser.AstIdentifier.getValue(AstIdentifier.java:68)
at org.apache.el.parser.AstValue.getValue(AstValue.java:112)
at org.apache.el.ValueExpressionImpl.getValue(ValueExpressionImpl.java:186)
at com.sun.faces.facelets.el.TagValueExpression.getValue(TagValueExpression.java:109)

2

The default value is 500.
https://www.elastic.co/guide/en/logstash/current/plugins-codecs-multiline.html#plugins-codecs-multiline-max_lines

I would increase "max_lines" in the multiline codec:

    codec => multiline {
        max_lines => 3000
        negate => "true"
        what => "previous"
    }