Logs

Applies to: Kyvos Enterprise   Kyvos Cloud (Managed Services on AWS)     Kyvos Azure Marketplace

Kyvos AWS Marketplace    Kyvos Single Node Installation (Kyvos SNI)     Kyvos Free ( Limited offering for AWS)

The Log tab on the Monitor page is used to view Kyvos Manager, Kyvos Manager Access, Services logs, and Kyvos YARN Services. 

Kyvos Manager Server Logs

The Kyvos Manager records all the events that occur and any errors associated with those events in the form of logs. Logs are an essential tool for monitoring and troubleshooting problems with your environment. All events record information, such as log level, time at which the event occurred, the source component that logged it, the computer on which the event occurred, and so on. Information in these logs helps you identify errors. The logs also provide information on the history of the events that occur over time.
For example, the following events are recorded in the logs.

• Installation and upgrade events for Kyvos Manager
• Start and stop information for cluster and its services
• Running status for Query Engine and
• Connection and disconnection events

The following are the common actions: 

• Search: Use the Search textbox to locate your target log files quickly. 
• Download, View, or Delete: Select the checkbox corresponding to the log file that you want to download, view, or delete a particular log file. You can also delete log files that do not have the extension as .log or .out.
• Download All: Downloads all the log files or multiple files selected to download.
  
• Select All: Selects all files. You can also clear all the selected files by using the Clear All button or the Clear Selection link at the bottom of the page. 
• Delete Selected: Click the Actions menu (...) at the top-right of the pane, and then select this option to delete multiple files. 

To view the logs, perform the following steps: 

1. To view cluster logs, click Monitor and High Availability> Monitor  on the navigation pane. The Monitor page is displayed. 
2. On the Monitor page, click the Logs tab. The Logs tab is selected by default. 
3. On the Logs page, the Kyvos Manager tab is selected by default. 
   
   Kyvos Manager server logs 
4. On the page, perform the required action. 
5. If required, you can configure the Kyvos Manager agent logging parameters like log level, file size, and backup file count. To do this, click the Actions menu (...) at the top-right of the pane and then select Configure Logging . 
   
   

Kyvos Manager Access logs

The Access Logs contain information about the terminals from where the Kyvos Manager application has been accessed, along with the time of access and type of request (GET or POST). Kyvos Manager provides this information through Apache Tomcat access logs.

You can view and download Kyvos Manager Access logs details. 

To view the Kyvos Manager Access logs, perform the following steps: 

1. On the Monitor page, click the Logs tab. 
2. On the Logs page, click the Kyvos Manager Access tab.
   The page lists all the Kyvos Manager local host access details. 
   
   

Services Logs

You can view and download Kyvos Cluster logs details. 

To view the Kyvos Manager Access logs, perform the following steps: 

1. On the Monitor page, click the Logs tab. 
2. On the Logs page, click the Services tab.
   The page lists all the Kyvos cluster log details. 
   
3. On the page, perform the following actions: 
   1. Fetch Log List: Select the required Service(s) and Node(s) from the list. By default, you can download all logs for all services and nodes.
   2. Clear Log Cache: Click the Actions menu (...) at the top-right of the page, and then select this option to free the hard disk space by clearing the logs cache on and Kyvos Manager nodes.
   3. Configure Logging: Click the Actions menu (...) at the top-right of the page, and then select this option to configure the Kyvos Manager agent logging parameters like log level, file size, and backup file count. 
      
      

• In case YARN is configured, you can also download logs of Query Engine and App Master from HDFS. You can also choose to view active or inactive or both nodes.
• You can also sync logs to HDFS and search or download logs matching the specified selection criteria. 

Kyvos YARN Services 

For clusters deployed in YARN mode, Kyvos Manager enables you to view, start, stop, and restart the YARN services for all nodes.
For this, click the cluster name > Monitor and High Availability > Monitor  > Kyvos YARN Services on the navigation pane.

This page displays the status details of the App Master and Kyvos YARN Query Engine, as shown in the following figure.

Kyvos YARN Services

On the Kyvos YARN Services page, you can perform the following actions:

• Download 
• View 
• Select All
• Clear selection
• Fetch Log List 
• Clear Cache log 
• Configure logging