https://community.dynatrace.com/t5/Log-Analytics/Queries-with-dynatrace/m-p/206455#M529 <P>Hello!</P> <P>&nbsp;</P> <P>If you are using Logs and Events with Grail, a potential query could be:</P> <P>fetch logs<BR />| filter contains(content, "error1") and contains(content, "error2") and host.name == "host1" OR host.name == "host2"</P> <P>&nbsp;</P> <P>You may need to modify the 'host.name' portion to be a different Dynatrace entity in order to match the applications you are referring to (i.e. dt.process.name if you have a process that runs on both applications, or dt.source.entity if you have the exact entity ID of each application).</P> <P>&nbsp;</P> <P>Hope that helps!</P> Tue, 07 Mar 2023 16:45:07 GMT chris_smerek 2023-03-07T16:45:07Z https://community.dynatrace.com/t5/Log-Analytics/Queries-with-dynatrace/m-p/206406#M528 <P>hello everyone.</P><P>I have 2 applications working with dynatrace, one web application and the other mobile. These applications have request errors, custom errors and javascript errors. Is there a way to make a query where I get back if a particular error is present in both applications?</P> Mon, 06 Mar 2023 22:18:54 GMT https://community.dynatrace.com/t5/Log-Analytics/Queries-with-dynatrace/m-p/206406#M528 gus_solji 2023-03-06T22:18:54Z https://community.dynatrace.com/t5/Log-Analytics/Queries-with-dynatrace/m-p/206455#M529 <P>Hello!</P> <P>&nbsp;</P> <P>If you are using Logs and Events with Grail, a potential query could be:</P> <P>fetch logs<BR />| filter contains(content, "error1") and contains(content, "error2") and host.name == "host1" OR host.name == "host2"</P> <P>&nbsp;</P> <P>You may need to modify the 'host.name' portion to be a different Dynatrace entity in order to match the applications you are referring to (i.e. dt.process.name if you have a process that runs on both applications, or dt.source.entity if you have the exact entity ID of each application).</P> <P>&nbsp;</P> <P>Hope that helps!</P> Tue, 07 Mar 2023 16:45:07 GMT https://community.dynatrace.com/t5/Log-Analytics/Queries-with-dynatrace/m-p/206455#M529 chris_smerek 2023-03-07T16:45:07Z