topic Pre initialize a tHash in Talend Studio https://community.qlik.com/t5/Talend-Studio/Pre-initialize-a-tHash/m-p/2354761#M120656 Hi,<BR />I have two subjobs in my first sub job i have thashoutput and in my second job I have a thashInput.<BR />The logic is such that I do not always reach the thashoutput.<BR />In these cases I get the following error in the thashInput?<BR />Exception in component tHashInput_2<BR />java.lang.RuntimeException: Hash is not initialized : Hash must exist before your read from it<BR />How can I pre initialize the tHash to avoid this?<BR />Thanks Mon, 03 Jun 2013 12:18:17 GMT Anonymous 2013-06-03T12:18:17Z Pre initialize a tHash https://community.qlik.com/t5/Talend-Studio/Pre-initialize-a-tHash/m-p/2354761#M120656 Hi,<BR />I have two subjobs in my first sub job i have thashoutput and in my second job I have a thashInput.<BR />The logic is such that I do not always reach the thashoutput.<BR />In these cases I get the following error in the thashInput?<BR />Exception in component tHashInput_2<BR />java.lang.RuntimeException: Hash is not initialized : Hash must exist before your read from it<BR />How can I pre initialize the tHash to avoid this?<BR />Thanks Mon, 03 Jun 2013 12:18:17 GMT https://community.qlik.com/t5/Talend-Studio/Pre-initialize-a-tHash/m-p/2354761#M120656 Anonymous 2013-06-03T12:18:17Z Re: Pre initialize a tHash https://community.qlik.com/t5/Talend-Studio/Pre-initialize-a-tHash/m-p/2354762#M120657 Have a pre-job with just tFixedFlowInput (0 rows) --&gt; tHashOutput to initialise the hash. Make sure your real tHashOutput and your tHashInput are linked to that initial tHashOutput. Tue, 04 Jun 2013 00:14:21 GMT https://community.qlik.com/t5/Talend-Studio/Pre-initialize-a-tHash/m-p/2354762#M120657 alevy 2013-06-04T00:14:21Z