How to compress with 'best_compression' elasticsearch data

Question

How can I compress all elasticsearch data (existing one as well as new data) with the "best_compression" option?

I know since 5.00 version I can't put "index.codec: best_compression" in the elasticsearch.yml file. I've read the log which indicates that it's deccaped and I should use

curl -XPUT 'http://localhost:9200/_all/_settings?preserve_existing=true' -d '{"index.codec" : "best_compression"}'

But when used I'm given the following error:

{"error":{"root_cause":[{"type":"illegal_argument_exception","reason":"Can't update non dynamic settings [[index.codec]] for open indices [[logstash-dns-2018.07.30/xHq6UfgsSD2M1dBZhV3cOg], [logstash-2018.07.27/7U7uUsEORFqXtJtrk4KvDw], [logstash-dns-2018.07.27/Xbx15QXOQ5KJAK7iop_54Q], [logstash-http-2018.07.27/q0Rs65a3TjW4NJfcljUHEw], [logstash-flow-2018.07.30/0Erbh2TcRgmFJLMLr8Ka8w], [logstash-2018.07.30/boOd8BdrQV2QoziKaZ_2lw], [logstash-alert-2018.07.27/o5yqwdNqR5yAcbJ-HCNVHw], [logstash-alert-2018.07.30/pp6ZWKLISECVzUiCDDeydQ], [logstash-tls-2018.07.30/rZi6KfC7RtqOVjUt7CCqDQ], [logstash-ssh-2018.07.27/wKi-p6slSqO0-vbwRqS1ZA], [.kibana/XaFQRcEXTW6jLUCmBijzKQ], [logstash-tls-2018.07.27/hbiXYCzjRumh3ND6up9vNw], [logstash-flow-2018.07.27/XfspJr1TS4y6MnCgAmRq1g], [logstash-fileinfo-2018.07.27/9VWyBHsqRmO4QsnN-gdt_w], [logstash-http-2018.07.30/U9JO9Cp-QQO7gvRNoHt7FQ], [logstash-fileinfo-2018.07.30/nlwHeDOsQ3ii8CLxcgE3Ag]]"}],"type":"illegal_argument_exception","reason":"Can't update non dynamic settings [[index.codec]] for open indices [[logstash-dns-2018.07.30/xHq6UfgsSD2M1dBZhV3cOg], [logstash-2018.07.27/7U7uUsEORFqXtJtrk4KvDw], [logstash-dns-2018.07.27/Xbx15QXOQ5KJAK7iop_54Q], [logstash-http-2018.07.27/q0Rs65a3TjW4NJfcljUHEw], [logstash-flow-2018.07.30/0Erbh2TcRgmFJLMLr8Ka8w], [logstash-2018.07.30/boOd8BdrQV2QoziKaZ_2lw], [logstash-alert-2018.07.27/o5yqwdNqR5yAcbJ-HCNVHw], [logstash-alert-2018.07.30/pp6ZWKLISECVzUiCDDeydQ], [logstash-tls-2018.07.30/rZi6KfC7RtqOVjUt7CCqDQ], [logstash-ssh-2018.07.27/wKi-p6slSqO0-vbwRqS1ZA], [.kibana/XaFQRcEXTW6jLUCmBijzKQ], [logstash-tls-2018.07.27/hbiXYCzjRumh3ND6up9vNw], [logstash-flow-2018.07.27/XfspJr1TS4y6MnCgAmRq1g], [logstash-fileinfo-2018.07.27/9VWyBHsqRmO4QsnN-gdt_w], [logstash-http-2018.07.30/U9JO9Cp-QQO7gvRNoHt7FQ], [logstash-fileinfo-2018.07.30/nlwHeDOsQ3ii8CLxcgE3Ag]]"},"status":400}

Answer 1

Solved:

1. Close all indices:

   http://localhost:9200/_all/_close'

2. Apply best_compression to all

   curl -XPUT 'http://localhost:9200/_all/_settings' -d '{"index.codec" : "best_compression"}'

3. Open all indices:

   curl -XPOST 'http://localhost:9200/_all/_open'