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@@ -7,13 +7,14 @@ This troubleshooting guide is only up to date for v2.6 and below. +
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Additional guidance for v3.0+ is in development.
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====
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== Introduction
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The Troubleshooting Guide teaches you how to monitor the status of your TigerGraph system, and when needed, find the log files in order to get a better understanding of why certain errors are occurring. This guide covers log file debugging for data loading and querying.
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For a overview of available log files, their locations, and what information they contain, please refer to the xref:troubleshooting:log-files.adoc#_available_log_files[Log Files] documentation page.
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The Troubleshooting Guide teaches you how to monitor the status of your TigerGraph system, and when needed, find the log files in order to get a better understanding of why certain errors are occurring. This section covers log file debugging for data loading and querying.
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== General
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Before any deeper investigation, always run these general system checks:
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Before any deeper investigation, always run these general system checks:
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[source,console]
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with time difference under 2 seconds. )
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=== Location of Log Files
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The following command reveals the location of the log files :
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[source,console]
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gadmin log
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You will be presented with a list of log files. The left side of the resulting file paths is the component for which the respective log file is logging information.
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The majority of the time, these files will contain what you are looking for. You may notice that there are multiple files for each TigerGraph component.
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[NOTE]
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====
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The .out file extension is for errors. +
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The .INFO file extension is for normal behaviors.
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====
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In order to diagnose an issue for a given component, you'll want to check the .out log file extension for that component.
Other log files that are not listed by the *`gadmin log`* command are those for Zookeeper and Kafka, which can be found here:
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[source,console]
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zookeeper : ~/tigergraph/zk/zookeeper.out.*
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kafka : ~/tigergraph/kafka/kafka.out
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=== Synchronize time across nodes in a cluster
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TigerGraph will experience a variety of issues if clocks across different nodes in a cluster are out of sync. If running `grun all "date"` shows that the clocks are out of sync, it is highly recommended that you install NTP implementations such as https://chrony.tuxfamily.org/index.html[`chrony`] or http://manpages.ubuntu.com/manpages/xenial/man8/systemd-timesyncd.service.8.html[`timesyncd`] to keep them in sync.
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