Prepare TAS Application server (TAS 8)

Prepare the TAS Application server to provide text ingestion, processing, and application services, including analytics insights.

The procedures for server preparation are based on third party software which is subject to change. The instructions as such are to be considered as a suggested method for server preparation. Alternative commands may be used. In addition, it is possible that some of the commands may not be necessary as your servers may already have the required software.

Before you begin

Prepare TAS Management server

Procedure

Create the data directory to store the index, configuration, log, and transaction log files, and assign the required permissions:
1. Create the /<data_folder> directory:
  Copy
```
mkdir -p /<data_folder>
```
  where:
  
  <data_folder> is the folder defined for data storage, and is by default opt/app/data.
  
  If you require a different data directory, you must define it in the Site Preparation Checklist.
2. Assign the TAS user group and the tas_app user as the owner of the directory:
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```
chown -R tas_app:tas /<data_folder>
```
3. Assign the following permissions:
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```
chmod -R 770 /<data_folder>
```
Schedule a cron job in CronTab to purge log files:
1. Edit the current CronTab:
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```
crontab -e
```
2. Add the line to purge the log files every 30 minutes:
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```
30 * * * * find /<data_folder>/log -type f -mtime +15 -delete
```
Optional. Install diagnostic tools for troubleshooting:
Copy
```
yum -y install sysstat htop iotop iftop sysbench collectl
```

What to do next

Prepare TAS Datastore server (TAS 8)