Log Files

Applies to: Kyvos Enterprise  Kyvos Cloud (SaaS on AWS) Kyvos AWS Marketplace

Kyvos Azure Marketplace   Kyvos GCP Marketplace Kyvos Single Node Installation (Kyvos SNI)

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

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. 

Services Logs

You can view and download Kyvos Cluster Services logs details. 

To view the services, perform the following steps: 

1. On the Monitor page, click the Logs Files tab. The Services tab is selected by default.
   The page lists all the Kyvos cluster log details. 

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2. 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. To download compute server logs: Enter the number of days for which you want to download Compute Server and Compute Server Pod logs, and then Click here. A tar file will be downloaded to your local system.
      NOTE: This is applicable to all cloud (AWS, Azure and GCP) deployments for Kyvos Native (Kubernetes) deployments.

   3. 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.

   4. 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. 

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   5. Download, View or Delete the selected service.

      • Download: Use this link to download the Active or Passive Kyvos Manager logs.

      • View: Use this link to view the Active or Passive Kyvos Manager logs in detail . The Log File Details dialog is displayed. Click Close to exit the dialog box.

      • Delete: Use this option to delete the selected log file. Clicking the link will display the a confirmation dialog to delete the log file.

• 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. 

Archived

You can now download no-spark logs through Kyvos Manager on the Monitor > Archived page. You can obtain logs for any specific nodes and also apply a date filter to fetch more precise log details.

To view the Archived 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 Log Files tab. 

3. On the Logs Files page, click the Archived tab.

4. In the Criteria section, select the Services, Nodes, Logs Upload Time. You can apply a date filter (Is and Is Between).

5. Click Fetch Log List. The list of the archived Compute Server logs. You can select a single node or Select All nodes.

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

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 Kyvos Manager tab. 

3. On the Logs Files page, click the Kyvos Manager tab.

4. In the Nodes section, select the required node, and then click Fetch Log List. The list of the Kyvos Manager log file is displayed for the selected node. You can select a single node or Select All nodes.

5. On the page, select the required Kyvos Manager log file to perform the required action, such as Download, View, or Delete. You can Download All log files.

6. You can also select a single log file or Select All option to perform the required action. You can also click the Clear Selection to clear the selected log files.

7. If required, you can configure the Kyvos Manager agent logging parameters like log level, file size, backup file count, SSH log level, and JSCH log level. 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 Active or Passive Kyvos Manager Access logs.

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

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

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.

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