https://community.cloudera.com/t5/Archives-of-Support-Questions/NiFi-Attribute-toNumber-failing-validation/m-p/170171#M54025 <P>The Compression Level property doesn't look like it supports expression language. The docs should say which properties do.</P> Sat, 11 Feb 2017 02:59:27 GMT bbende 2017-02-11T02:59:27Z https://community.cloudera.com/t5/Archives-of-Support-Questions/NiFi-Attribute-toNumber-failing-validation/m-p/170170#M54024 <P>I used the update attribute to create an attribute called compressvalue and set it to 2. Then I used this attribute in the posthttp processor Attribute Compression Level and used my attribute $(compressvalue:toNumber()). The processor fails to validate complaining my attribute is not an integer. any ideas?</P> Sat, 11 Feb 2017 02:54:22 GMT https://community.cloudera.com/t5/Archives-of-Support-Questions/NiFi-Attribute-toNumber-failing-validation/m-p/170170#M54024 sunile_manjee 2017-02-11T02:54:22Z https://community.cloudera.com/t5/Archives-of-Support-Questions/NiFi-Attribute-toNumber-failing-validation/m-p/170171#M54025 <P>The Compression Level property doesn't look like it supports expression language. The docs should say which properties do.</P> Sat, 11 Feb 2017 02:59:27 GMT https://community.cloudera.com/t5/Archives-of-Support-Questions/NiFi-Attribute-toNumber-failing-validation/m-p/170171#M54025 bbende 2017-02-11T02:59:27Z