# Graylog could not execute search **URL:** \ **Category:** Graylog Central (peer support)\ **Created:** [March 21, 2018, 11:57am UTC](https://community.graylog.org/t/graylog-could-not-execute-search/4659 "2018-03-21T11:57:29Z")\ **Posts on this page:** 7\ **Page:** 1
**Author:** ![firmen](https://avatars.discourse-cdn.com/v4/letter/f/b9e5f3/32.png) [@firmen](https://community.graylog.org/u/firmen)\ **Post date:** [March 21, 2018, 11:57am UTC](https://community.graylog.org/t/graylog-could-not-execute-search/4659/1 "2018-03-21T11:57:29Z")
Hello, i have problem when i following steps no. 4 > **[How to Manage Logs with Graylog 2 on Ubuntu 16.04 | DigitalOcean](https://www.digitalocean.com/community/tutorials/how-to-manage-logs-with-graylog-2-on-ubuntu-16-04)** > > Graylog is a powerful open source log management platform. It aggregates and extracts important data from server logs, which are often sent using the syslog protocol. It also allows you to search and visualize the logs in a web interface. In this... here the error ![Capture](https://us1.discourse-cdn.com/flex016/uploads/graylog/original/2X/c/cf9931b1e841e51b89cad79b1067065e4d82f021.PNG) here the logs: 2018-03-19T16:43:33.963+07:00 INFO [CmdLineTool] Loaded plugin: Enterprise Intput 2.2.3 [org.graylog.plugins.beats.BeatsInputPlugin] 2018-03-19T16:43:33.960+07:00 INFO [CmdLineTool] Loaded plugin: Collector 2.2.2.3 [org.graylog.plugins.collector.CollectorPlugin] 2018-03-19T16:43:33.963+07:00 INFO [CmdLineTool] Loaded plugin: Enterprise Integration Plugin 2.2.3 [org.graylog.plugins.enterprise\_integration.EnterpriseIntegrationPlugin 2018-03-19T16:43:33.964+07:00 INFO [CmdLineTool] Loaded plugin: MapWidgetPlugin 2.2.3 [org.graylog.plugins.map.MapWidgetPlugin] 2018-03-19T16:43:33.969+07:00 INFO [CmdLineTool] Loaded plugin: Pipeline Process plugin 2018-03-19T16:43:33.971+07:00 INFO [CmdLineTool] Loaded plugin: Anonymous Usag$s Usage Statistics 2.2.3 [org.graylog.plugins.usagestatistics.UsageStatsPlugin] 2018-03-19T16:43:39.255+07:00 INFO [CmdLineTool] Running with JVM arguments: nts: -Xms1g -Xmx1g -XX:NewRatio=1 -XX:+ResizeTLAB -XX:+UseConcMarkSweepGC -XX:C -XX:+CMSConcurrentMTEnabled -XX:+CMSClassUnloadingEnabled -XX:+UseParNewGC - ewGC -XX:-OmitStackTraceInFastThrow Dlog4j.configurationFile=file:///etc//graylog/server/log4j2.xml -Djava.library.path=/usr/share/graylog-server/lib/sigar -Dgraylog2.installation\_source=deb 2018-03-19T16:43:39.632+07:00 INFO [Version] HV000001: Hibernate Validator null 2018-03-19T16:43:47.556+07:00 INFO [InputBufferImpl] Message journal is enable 2018-03-19T16:43:47.584+07:00 INFO [NodeId] Node ID: 27488ba8-de26-4bea-9bb8-a9bb8-a05dc4888705 2018-03-19T16:43:47.797+07:00 INFO [LogManager] Loading logs. 2018-03-19T16:43:47.799+07:00 INFO [LogManager] Logs loading complete. ---
**Author:** ![jan](https://sea2.discourse-cdn.com/flex016/user_avatar/community.graylog.org/jan/32/11_2.png) [@jan](https://community.graylog.org/u/jan)\ **Post date:** [March 21, 2018, 12:18pm UTC](https://community.graylog.org/t/graylog-could-not-execute-search/4659/2 "2018-03-21T12:18:28Z")
you should not use that old version - we are currently with Graylog 2.4.3 and you should use that. depending on your OS you can use one of our official step-by-step guides for the installation. I guess you do not have Elasticsearch installed or a not compatible version. ---
**Author:** ![firmen](https://avatars.discourse-cdn.com/v4/letter/f/b9e5f3/32.png) [@firmen](https://community.graylog.org/u/firmen)\ **Post date:** [March 22, 2018, 2:30am UTC](https://community.graylog.org/t/graylog-could-not-execute-search/4659/3 "2018-03-22T02:30:20Z")
is it okay if i upgrade graylog version? or i have to re-configure? ---
**Author:** ![jan](https://sea2.discourse-cdn.com/flex016/user_avatar/community.graylog.org/jan/32/11_2.png) [@jan](https://community.graylog.org/u/jan)\ **Post date:** [March 22, 2018, 10:34am UTC](https://community.graylog.org/t/graylog-could-not-execute-search/4659/4 "2018-03-22T10:34:52Z")
following the upgrade guides you are able to upgrade from your given version to the latest: [http://docs.graylog.org/en/2.4/pages/upgrade.html](http://docs.graylog.org/en/2.4/pages/upgrade.html) Just take care that you first move over to 2.3 and after that to 2.4 - just because this is the supported way. regards Jan ---
**Author:** ![firmen](https://avatars.discourse-cdn.com/v4/letter/f/b9e5f3/32.png) [@firmen](https://community.graylog.org/u/firmen)\ **Post date:** [March 26, 2018, 10:36am UTC](https://community.graylog.org/t/graylog-could-not-execute-search/4659/5 "2018-03-26T10:36:48Z")
but i installed in debian. can you suggest me any sources? ---
**Author:** ![jochen](https://sea2.discourse-cdn.com/flex016/user_avatar/community.graylog.org/jochen/32/8_2.png) [@jochen](https://community.graylog.org/u/jochen)\ **Post date:** [March 26, 2018, 11:30am UTC](https://community.graylog.org/t/graylog-could-not-execute-search/4659/6 "2018-03-26T11:30:35Z")
> [@firmen](#): > > can you suggest me any sources? [http://docs.graylog.org/en/2.4/pages/installation/os/debian.html](http://docs.graylog.org/en/2.4/pages/installation/os/debian.html) ---
**Author:** ![system](https://us1.discourse-cdn.com/flex016/uploads/graylog/original/3X/c/7/c7c09c6b5099570133d6502b83f50ba4430de5b6.png) [@system](https://community.graylog.org/u/system)\ **Post date:** [April 9, 2018, 11:31am UTC](https://community.graylog.org/t/graylog-could-not-execute-search/4659/7 "2018-04-09T11:31:01Z")
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