# Mixed log with json field **URL:** \ **Category:** Logstash\ **Created:** [August 2, 2015, 10:52am UTC](https://discuss.elastic.co/t/mixed-log-with-json-field/26688 "2015-08-02T10:52:58Z")\ **Posts on this page:** 10\ **Page:** 1
**Author:** ![Or\_Cohen](https://sea2.discourse-cdn.com/elastic/user_avatar/discuss.elastic.co/or_cohen/32/3977_2.png) [@Or\_Cohen](https://discuss.elastic.co/u/Or_Cohen)\ **Post date:** [August 2, 2015, 10:52am UTC](https://discuss.elastic.co/t/mixed-log-with-json-field/26688/1 "2015-08-02T10:52:58Z")
Hi, I have a log with mixed fields the first two fields are outsude the json the third one is a json Example: > tag : 02:00:00 --\> {"v":"2.59","tagid":"2edfe14540b51a047dc8f66c219c7804","cb":"1665253253","ds":"loading","h":"250","o":"o64|o21|p18","ch":"o64|o21|p18|o48|o56|h","status":"5","l":"http://m.xxxxx.com","ts":"t:4|np:27|s:529|o64:3314|o21:3731|p18:4492|p:4492","uid":"ef95517ece868042a2e267ce78076342","kmnjid":"Vb1m2cAoJI4AABVxWMAAAAAj&563","kmnjts":"1438477848.468","geo":"NA|US","ip":"100.100.100.100","browser":"Chrome|43.0.2357.93|Android|M|Mobile","agent":"Mozilla/5.0 (Linux; Android 4.4.2; LG-D805 Build/KOT49I) AppleWebKit/537.36 (KHTML, like Gecko) Chrome/43.0.2357.93 Mobile Safari/537.36"} is there any easy way to parse this log with logstash ? update: I want the logstash ignore the first 2 fields and parse just the json field if it possible. I manage to do this with bash script that delete those fields but it's taking to much time. btw one log = 15 M records every hour. ---
**Author:** ![eperry](https://sea2.discourse-cdn.com/elastic/user_avatar/discuss.elastic.co/eperry/32/551_2.png) [@eperry](https://discuss.elastic.co/u/eperry)\ **Post date:** [August 2, 2015, 12:34pm UTC](https://discuss.elastic.co/t/mixed-log-with-json-field/26688/2 "2015-08-02T12:34:42Z")
you would have to split the field first [https://www.elastic.co/guide/en/logstash/current/plugins-filters-mutate.html#plugins-filters-mutate-split](https://www.elastic.co/guide/en/logstash/current/plugins-filters-mutate.html#plugins-filters-mutate-split) Then you could use the json filter on your data [https://www.elastic.co/guide/en/logstash/current/plugins-filters-json.html](https://www.elastic.co/guide/en/logstash/current/plugins-filters-json.html) ---
**Author:** ![Or\_Cohen](https://sea2.discourse-cdn.com/elastic/user_avatar/discuss.elastic.co/or_cohen/32/3977_2.png) [@Or\_Cohen](https://discuss.elastic.co/u/Or_Cohen)\ **Post date:** [August 2, 2015, 1:21pm UTC](https://discuss.elastic.co/t/mixed-log-with-json-field/26688/3 "2015-08-02T13:21:35Z")
Thank you eperry for the reply I'm new on logstash and I can't figure how to split the log. can you please help me with this. I added this to the configuration but this not working > filter { > mutate { > split =\> { "message" =\> "--\>" } > } > } I believe the field name is message, am I right ? ---
**Author:** ![eperry](https://sea2.discourse-cdn.com/elastic/user_avatar/discuss.elastic.co/eperry/32/551_2.png) [@eperry](https://discuss.elastic.co/u/eperry)\ **Post date:** [August 2, 2015, 1:37pm UTC](https://discuss.elastic.co/t/mixed-log-with-json-field/26688/4 "2015-08-02T13:37:45Z")
looks right I would run your data though it and see. ---
**Author:** ![Or\_Cohen](https://sea2.discourse-cdn.com/elastic/user_avatar/discuss.elastic.co/or_cohen/32/3977_2.png) [@Or\_Cohen](https://discuss.elastic.co/u/Or_Cohen)\ **Post date:** [August 2, 2015, 1:45pm UTC](https://discuss.elastic.co/t/mixed-log-with-json-field/26688/5 "2015-08-02T13:45:39Z")
thanks alot ---
**Author:** ![magnusbaeck](https://sea2.discourse-cdn.com/elastic/user_avatar/discuss.elastic.co/magnusbaeck/32/44943_2.png) [@magnusbaeck](https://discuss.elastic.co/u/magnusbaeck)\ **Post date:** [August 2, 2015, 4:09pm UTC](https://discuss.elastic.co/t/mixed-log-with-json-field/26688/6 "2015-08-02T16:09:51Z")
Instead of splitting the message I'd use grok. ``` filter { grok { match => ["message", "tag: %{INT}:%{INT}:%{INT} --> %{GREEDYDATA:message}"] overwrite => ["message"] } json { source => "message" remove_field => ["message"] } } ``` ---
**Author:** ![Or\_Cohen](https://sea2.discourse-cdn.com/elastic/user_avatar/discuss.elastic.co/or_cohen/32/3977_2.png) [@Or\_Cohen](https://discuss.elastic.co/u/Or_Cohen)\ **Post date:** [August 3, 2015, 10:34am UTC](https://discuss.elastic.co/t/mixed-log-with-json-field/26688/7 "2015-08-03T10:34:14Z")
Magnus, Thank you very very much you're a lifesaver ---
**Author:** ![muhammadn](https://sea2.discourse-cdn.com/elastic/user_avatar/discuss.elastic.co/muhammadn/32/4205_2.png) [@muhammadn](https://discuss.elastic.co/u/muhammadn)\ **Post date:** [August 16, 2015, 2:35pm UTC](https://discuss.elastic.co/t/mixed-log-with-json-field/26688/8 "2015-08-16T14:35:25Z")
Hi magnus, I also have a mixed json data with the timestamp first which i followed with the following code: ````auto grok{ match => ["message", "%{DATESTAMP} %{GREEDYDATA:message}"] overwrite => ["message"] } json{ source => "message" remove_field => ["message"] } }``` where `%{DATESTAMP}` is the timestamp at the beginning of the message. Results is: ```"message": "{\\\"id\\\":\\\"55d09c10f2aee2000133673a\\\",\\\"fingerprintjs_id\\\":\\\"\\\",\\\"email\\\":\\\"\\\",\\\"app_key\\\":\\\"ZSp-0vi8_0yRDY66bW--dg\\\",\\\"referrer\\\":\\\"http://www.domain.com/\\\",\\\"client_timestamp\\\":\\\"2015-08-16T14:20:04.709Z\\\",\\\"page_view_client_key\\\":\\\"b9d235da2011439734804706\\\",\\\"user_agent\\\":\\\"Mozilla/5.0 (Windows NT 10.0; WOW64) AppleWebKit/537.36 (KHTML, like Gecko) Chrome/44.0.2403.155 Safari/537.36\\\",\\\"keywords\\\":\\\"\\\",\\\"description\\\":\\\"Police, military and search teams would check the area in Oksibil district where there had been reports of the crash.\\\",\\\"title\\\":\\\"Missing Indonesian plane with 54 crashed, report residents - Khaleej Times\\\",\\\"uid\\\":\\\"55d09c10f2aee2000133673b\\\",\\\"session_id\\\":\\\"55d09c10f2aee2000133673c\\\",\\\"url\\\":\\\"http://www.domain.com/international/rest-of-asia/missing-indonesian-plane-with-54-crashed-report-residents\\\",\\\"ip\\\":\\\"83.110.196.21\\\",\\\"received_at\\\":\\\"2015-08-16T14:20:00.802Z\\\"}\\n\",\"stream\":\"stdout\",\"time\":\"2015-08-16T14:20:00.802862057Z\"}",``` but it still shows: ` [0] "_jsonparsefailure" ` I think it is not normal with so many escape `\\\` characters in json? (Note: I am not using json codec but json filter only) ```` ---
**Author:** ![magnusbaeck](https://sea2.discourse-cdn.com/elastic/user_avatar/discuss.elastic.co/magnusbaeck/32/44943_2.png) [@magnusbaeck](https://discuss.elastic.co/u/magnusbaeck)\ **Post date:** [August 16, 2015, 3:12pm UTC](https://discuss.elastic.co/t/mixed-log-with-json-field/26688/9 "2015-08-16T15:12:23Z")
@muhammadn – please start a new topic for your new and unrelated question. ---
**Author:** ![system](https://us1.discourse-cdn.com/elastic/original/3X/1/a/1ac57faf039f6b580b3f104ef42a2a89e41014de.png) [@system](https://discuss.elastic.co/u/system)\ **Post date:** [July 6, 2017, 5:31am UTC](https://discuss.elastic.co/t/mixed-log-with-json-field/26688/10 "2017-07-06T05:31:52Z")