Axibase Time Series Database

Change Owner

For proper functionality, ATSD must execute under the axibase user not root.

This document describes where to locate all directories used by the database and how to revert file ownership to axibase user.

Execute the below steps as root or a user with sudo privileges.

Identify Custom Directories

Log in to ATSD and open the Settings > Server Properties page.

Review the following properties and identify files and directories located outside of the base directory /opt/atsd.

  • internal.metrics.dump.path
  • jmx.access.file
  • jmx.password.file
  • webdriver.chromebrowser.path
  • webdriver.chromedriver.path
  • webdriver.phantomjs.path
  • nmon.data.directory
  • search.index.path

Create a list consisting of files and directories located outside of the /opt/atsd directory.

Open the Settings > Configuration Files page.

Select the logback.xml file from the drop-down list.

Search for <file> and <fileNamePattern> tags and locate paths outside of the base directory.

Add the custom paths to the above list.

Stop ATSD

Stop all ATSD processes.

sudo /opt/atsd/bin/atsd-all.sh stop

Verify that no ATSD processes are present in jps output.

jps

The output must contain only the jps process itself.

8582 Jps

If other processes continue running, follow the safe ATSD shutdown procedure.

Change Owner

Base Directory

Change ownership of the base directory.

sudo chown -R axibase:axibase /opt/atsd

Data Directory

If ATSD data is stored in a custom directory, change the owner of the custom data directory.

sudo chown -R axibase:axibase /path/to/data-directory

Custom Directories

Change owner for each path in the custom directory list above.

sudo chown -R axibase:axibase /path/to/custom-directory

Temporary Directories

List /tmp directory contents to locate subdirectories used by ATSD to store temporary files.

ls /tmp

drwxrwxrwt 13 root    root    2342912 Jun 15 19:55 .
drwxr-xr-x 24 root    root       4096 Apr 16 09:42 ..
drwxrwxr-x  3 axibase axibase    4096 May 29 10:05 atsd
drwxrwxr-x  3 axibase axibase    4096 May 29 09:59 hbase-axibase
drwxr-xr-x  2 axibase axibase    4096 Jun 15 15:55 hsperfdata_axibase
drwxrwxr-x  4 axibase axibase    4096 Jun 15 15:54 Jetty_0_0_0_0_16010_master____.6nvknp
drwxrwxr-x  4 axibase axibase    4096 Jun 15 15:54 Jetty_0_0_0_0_16030_regionserver____.45q9os
drwxrwxr-x  4 axibase axibase    4096 May 29 09:58 Jetty_0_0_0_0_50070_hdfs____w2cu08
drwxrwxr-x  4 axibase axibase    4096 May 29 09:58 Jetty_0_0_0_0_50075_datanode____hwtdwq
drwxrwxr-x  4 axibase axibase    4096 May 29 09:59 Jetty_0_0_0_0_50090_secondary____y6aanv
drwxrwxr-x  2 axibase axibase    4096 Jun 15 08:00 reports

Change ownership of /tmp/atsd, /tmp/*axibase*, /tmp/Jetty*, and other subdirectories used by ATSD.

sudo chown -R axibase:axibase /tmp/path-to-subdirectory

Verify Ownership

For each directory type above verify that there are no files owned by root user.

find /path/to/directory -depth -user root

Rerun the commands above if the output is not empty.

Start ATSD

Switch to axibase user.

sudo su axibase

Start ATSD as axibase user.

/opt/atsd/bin/atsd-all.sh start

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