1. Stop SASServer12_1 on your middle tier by executing the command below: /opt/sasinside/config/midtier/Lev1/Web/WebAppServer/SASServer12_1/bin/tcruntime-ctl.sh stop 2. Stop SAS Information Retrieval Studio by executing the command below: /opt/sasinside/config/compute/Lev1/Applications/SASInformationRetrievalStudioforSAS/IRStudio.sh stop 3. Delete all the contents of you/Lev#/Applications/SASInformationRetrievalStudioforSAS/work/index directory: rm -r /opt/sasinside/config/compute/Lev1/Applications/SASInformationRetrievalStudioforSAS/work/index/* ls -l /opt/sasinside/config/compute/Lev1/Applications/SASInformationRetrievalStudioforSAS/work/index 6. Start SAS Information Retrieval Studio back up by executing "./IRStudio.sh start" command on the location referenced on Step 2 above. Wait a minute or two and make sure your Proxy, Pipeline, Indexing, and Query servers are all up and running as well. /opt/sasinside/config/compute/Lev1/Applications/SASInformationRetrievalStudioforSAS/IRStudio.sh start 7. Start SASServer12_1 back up by executing "./tcruntime-ctl.sh start" command on the location referenced on Step 1 above. /opt/sasinside/config/midtier/Lev1/Web/WebAppServer/SASServer12_1/bin/tcruntime-ctl.sh start 8. Wait a few hours for logs to build. cd /opt/sasinside/config/compute/Lev1/Applications/SASInformationRetrievalStudioforSAS/logs ls -ltr