# Elastic Observability

**URL:** https://discuss.elastic.co/c/observability/82.md?page=160

[Latest](https://discuss.elastic.co/latest.md) · [Categories](https://discuss.elastic.co/categories.md) · [Tags](https://discuss.elastic.co/tags.md)

**Page:** 161

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## [APM server failed to listen:listen tcp 127.0.0.1:8200](https://discuss.elastic.co/t/apm-server-failed-to-listen-listen-tcp-127-0-0-1-8200/154664)

<div class="topic-metadata">

**Author:** [@shahid](https://discuss.elastic.co/u/shahid)\
**Replies:** 5\
**Last updated:** [November 21, 2018, 3:10pm UTC](https://discuss.elastic.co/t/apm-server-failed-to-listen-listen-tcp-127-0-0-1-8200/154664 "2018-11-21T15:10:47Z")

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Hi APM Tech Team, I have ubuntu server 18.xx LTE on EC2 and i try to install the AMP server by using the below commands , But i am getting error. curl -L -O https://artifacts.elastic.co/downloads/apm-server/apm-serve…

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## [Failed to submit message: 'HTTP 401: invalid token' to APM Server](https://discuss.elastic.co/t/failed-to-submit-message-http-401-invalid-token-to-apm-server/157156)

<div class="topic-metadata">

**Author:** [@Makra](https://discuss.elastic.co/u/Makra)\
**Replies:** 3\
**Last updated:** [November 21, 2018, 8:37am UTC](https://discuss.elastic.co/t/failed-to-submit-message-http-401-invalid-token-to-apm-server/157156 "2018-11-21T08:37:57Z")

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Hi I have ELk stack and APM server (6.5.0) are running in Docker. I can view the Kibana dashboard for any events. Created a sample flask application to send APM values of it to APM server. When i call the Flask applicat…

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## [MIssing transactions in APM UI](https://discuss.elastic.co/t/missing-transactions-in-apm-ui/155403)

<div class="topic-metadata">

**Author:** [@Majsvaffla](https://discuss.elastic.co/u/Majsvaffla)\
**Replies:** 3\
**Last updated:** [November 20, 2018, 3:48pm UTC](https://discuss.elastic.co/t/missing-transactions-in-apm-ui/155403 "2018-11-20T15:48:54Z")

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I'm using the APM Python agent with a Django application. After migrating from Opbeat to Elastic APM I've been missing transactions from many Django views in the views table (in the APM UI in Kibana). They are, however, …

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## [APM do not work](https://discuss.elastic.co/t/apm-do-not-work/157438)

<div class="topic-metadata">

**Author:** [@picoroma](https://discuss.elastic.co/u/picoroma)\
**Replies:** 4\
**Last updated:** [November 20, 2018, 10:47am UTC](https://discuss.elastic.co/t/apm-do-not-work/157438 "2018-11-20T10:47:10Z")

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I'm trying to work with APM agent and server. Tryinf to monitoring an java application that run under Tomcat 8.5 (windows) I have installed the APM server on same host of ELK stack is installed. This is a test envirome…

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## [Catenate two fields as message](https://discuss.elastic.co/t/catenate-two-fields-as-message/157243)

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**Author:** [@Anton1](https://discuss.elastic.co/u/Anton1)\
**Replies:** 3\
**Last updated:** [November 19, 2018, 10:57am UTC](https://discuss.elastic.co/t/catenate-two-fields-as-message/157243 "2018-11-19T10:57:35Z")

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I got the logs ui working with my own index. However, message and loglevel are two different fields. Is it possible to catenate level and message so that both are shown in logs ui?

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## [APM server not working](https://discuss.elastic.co/t/apm-server-not-working/157043)

<div class="topic-metadata">

**Author:** [@MishMick](https://discuss.elastic.co/u/MishMick)\
**Replies:** 1\
**Last updated:** [November 19, 2018, 10:01am UTC](https://discuss.elastic.co/t/apm-server-not-working/157043 "2018-11-19T10:01:23Z")

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Error : 'No services with data in the selected time range' is shown on APM dashboard even though APM agent is properly installed and APM server is running. Details: OS: RHEL 7.x (latest) ELK version: 6.3.2 APM agent:…

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## [Apm-agent-go v0.5.2 panic with mu.Unlock](https://discuss.elastic.co/t/apm-agent-go-v0-5-2-panic-with-mu-unlock/156614)

<div class="topic-metadata">

**Author:** [@Barry\_Zhong](https://discuss.elastic.co/u/Barry_Zhong)\
**Replies:** 10\
**Last updated:** [November 19, 2018, 9:45am UTC](https://discuss.elastic.co/t/apm-agent-go-v0-5-2-panic-with-mu-unlock/156614 "2018-11-19T09:45:36Z")

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I am using apm-agent-go inside my project, currently I got a crash when loading my application. I am not sure if it is the application's issue or apm-agent-go's issue. Any clue? fatal error: sync: unlock of unlocked mut…

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## [Does the same filtering that works for Discover also work for Logs? So far it's not for me](https://discuss.elastic.co/t/does-the-same-filtering-that-works-for-discover-also-work-for-logs-so-far-its-not-for-me/157123)

<div class="topic-metadata">

**Author:** [@dfinn](https://discuss.elastic.co/u/dfinn)\
**Replies:** 3\
**Last updated:** [November 16, 2018, 10:26pm UTC](https://discuss.elastic.co/t/does-the-same-filtering-that-works-for-discover-also-work-for-logs-so-far-its-not-for-me/157123 "2018-11-16T22:26:55Z")

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I've got Logs working, I think it's going to be a really helpful feature. I do have one question though. Here's an example of a query that works in Discovery but if I try it in Logs it says " There are no log messages …

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## [Update Context or Transaction Result in Java Public API](https://discuss.elastic.co/t/update-context-or-transaction-result-in-java-public-api/155622)

<div class="topic-metadata">

**Author:** [@ngourley](https://discuss.elastic.co/u/ngourley)\
**Replies:** 2\
**Last updated:** [November 16, 2018, 2:57pm UTC](https://discuss.elastic.co/t/update-context-or-transaction-result-in-java-public-api/155622 "2018-11-16T14:57:25Z")

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There are no methods for setting transaction.result or context.request.url.full. These fields are displayed in the APM Dashboard as "URL" and "Result" for sample transactions. I am using sparkjava for a webservice which…

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## [Cannot deploy war on payara when APM agent is enabled](https://discuss.elastic.co/t/cannot-deploy-war-on-payara-when-apm-agent-is-enabled/157070)

<div class="topic-metadata">

**Author:** [@ciment](https://discuss.elastic.co/u/ciment)\
**Replies:** 1\
**Last updated:** [November 16, 2018, 2:51pm UTC](https://discuss.elastic.co/t/cannot-deploy-war-on-payara-when-apm-agent-is-enabled/157070 "2018-11-16T14:51:10Z")

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Hello, I have problem to deploy my JAVA EE application on payara (Payara Server 4.1.2.181 #badassfish (build 220) when I have enabled java agent 1.0.1 for payara. I got exception: Exception while invoking class org.gla…

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## [Elastic APM Java Annotation API](https://discuss.elastic.co/t/elastic-apm-java-annotation-api/157009)

<div class="topic-metadata">

**Author:** [@digitalron](https://discuss.elastic.co/u/digitalron)\
**Replies:** 3\
**Last updated:** [November 16, 2018, 2:36pm UTC](https://discuss.elastic.co/t/elastic-apm-java-annotation-api/157009 "2018-11-16T14:36:25Z")

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I'm trying to test the Annotation API on a Spring application but I get a compile-time error "cannot find symbol" related to the annotations for both @CaptureScan() and @CaptureTransaction(). I've already configured app…

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## [Custom instrumenting without decorators?](https://discuss.elastic.co/t/custom-instrumenting-without-decorators/156742)

<div class="topic-metadata">

**Author:** [@Mike\_H](https://discuss.elastic.co/u/Mike_H)\
**Replies:** 1\
**Last updated:** [November 16, 2018, 1:55pm UTC](https://discuss.elastic.co/t/custom-instrumenting-without-decorators/156742 "2018-11-16T13:55:00Z")

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Hey Guys, we're newbies to APM but we like what we see so far. We have a few django services where we'd like to add some custom instrumenting, but we're hesitant to pollute our codebase with decorators, so is there a wa…

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## [APM Java Agent](https://discuss.elastic.co/t/apm-java-agent/157019)

<div class="topic-metadata">

**Author:** [@Sosed](https://discuss.elastic.co/u/Sosed)\
**Replies:** 1\
**Last updated:** [November 16, 2018, 10:29am UTC](https://discuss.elastic.co/t/apm-java-agent/157019 "2018-11-16T10:29:22Z")

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Hello guys! Yesterday, there was a webinar, where ES APM developers said, that APM is production ready. Moreover, I can see, that APM Java agent 1.X version is released and available for APM 6.5.0. But I can still find…

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## ["Looks like you don't have any logging indices"](https://discuss.elastic.co/t/looks-like-you-dont-have-any-logging-indices/156915)

<div class="topic-metadata">

**Author:** [@trondhindenes](https://discuss.elastic.co/u/trondhindenes)\
**Replies:** 7\
**Last updated:** [November 16, 2018, 10:18am UTC](https://discuss.elastic.co/t/looks-like-you-dont-have-any-logging-indices/156915 "2018-11-16T10:18:30Z")

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I'm trying to figure out what constitutes a "logging index" - I'm getting the message " Looks like you don't have any logging indices" when testing the new "Logs" app in Kibana, but I can't find any documentation around …

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## [Elastic stack 6.5 Logs UI](https://discuss.elastic.co/t/elastic-stack-6-5-logs-ui/156960)

<div class="topic-metadata">

**Author:** [@shradhatx](https://discuss.elastic.co/u/shradhatx)\
**Replies:** 2\
**Last updated:** [November 16, 2018, 9:49am UTC](https://discuss.elastic.co/t/elastic-stack-6-5-logs-ui/156960 "2018-11-16T09:49:09Z")

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Where can I get more information on it? Is it a consolidated dashboard of MetricBeat and APM?

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## [java.lang.VerifyError with java agent](https://discuss.elastic.co/t/java-lang-verifyerror-with-java-agent/156882)

<div class="topic-metadata">

**Author:** [@Wolfram\_Haussig](https://discuss.elastic.co/u/Wolfram_Haussig)\
**Replies:** 7\
**Last updated:** [November 16, 2018, 7:32am UTC](https://discuss.elastic.co/t/java-lang-verifyerror-with-java-agent/156882 "2018-11-16T07:32:42Z")

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Hello, I am currently playing with Elastic Stack and APM. I have installed ElasticSearch 6.4.3 and APM-Server 6.5.0 without errors. On a tomcat 8.0.x I added the following options: -javaagent:/home/user/apm-server-6.5…

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## [NoSuchMethodError CharBuffer.flip() using java 8 with spring boot and APM 1.0.0](https://discuss.elastic.co/t/nosuchmethoderror-charbuffer-flip-using-java-8-with-spring-boot-and-apm-1-0-0/156870)

<div class="topic-metadata">

**Author:** [@jettro](https://discuss.elastic.co/u/jettro)\
**Replies:** 5\
**Last updated:** [November 15, 2018, 5:35pm UTC](https://discuss.elastic.co/t/nosuchmethoderror-charbuffer-flip-using-java-8-with-spring-boot-and-apm-1-0-0/156870 "2018-11-15T17:35:29Z")

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Hi I want to play around with APM and used a spring boot application to play around. However, I get this exception. I am running on a mac with jdk 8. Any idea what I am doing wrong? java.lang.NoSuchMethodError: java.nio…

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## [With 6.5 released, does that mean APM is now available in elastic cloud?](https://discuss.elastic.co/t/with-6-5-released-does-that-mean-apm-is-now-available-in-elastic-cloud/156889)

<div class="topic-metadata">

**Author:** [@Tim\_Heizer](https://discuss.elastic.co/u/Tim_Heizer)\
**Replies:** 1\
**Last updated:** [November 15, 2018, 2:56pm UTC](https://discuss.elastic.co/t/with-6-5-released-does-that-mean-apm-is-now-available-in-elastic-cloud/156889 "2018-11-15T14:56:15Z")

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With 6.5 released, does that mean APM is now available in elastic cloud?

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## [APM .NET Agent](https://discuss.elastic.co/t/apm-net-agent/155449)

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**Author:** [@AFShin](https://discuss.elastic.co/u/AFShin)\
**Replies:** 6\
**Last updated:** [November 15, 2018, 11:22am UTC](https://discuss.elastic.co/t/apm-net-agent/155449 "2018-11-15T11:22:53Z")

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Hello, Is there an official .Net Agent available now? The Only support topic is: Elastic .NET Agent and Java Agent Which is closed almost one year ago. Thank you.

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## [APM for Cloudflare Workers?](https://discuss.elastic.co/t/apm-for-cloudflare-workers/156766)

<div class="topic-metadata">

**Author:** [@Luisvsm](https://discuss.elastic.co/u/Luisvsm)\
**Replies:** 0\
**Last updated:** [November 15, 2018, 1:08am UTC](https://discuss.elastic.co/t/apm-for-cloudflare-workers/156766 "2018-11-15T01:08:14Z")

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I have been investigating APM for Workers over the last couple of days as their solution is very build your own at the moment. I'm fairly new to the Elastic stack as well so I may have missed something but I thought my …

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## [Python flask agent - nfailed to submit message](https://discuss.elastic.co/t/python-flask-agent-nfailed-to-submit-message/156686)

<div class="topic-metadata">

**Author:** [@sebasd44](https://discuss.elastic.co/u/sebasd44)\
**Replies:** 5\
**Last updated:** [November 14, 2018, 6:56pm UTC](https://discuss.elastic.co/t/python-flask-agent-nfailed-to-submit-message/156686 "2018-11-14T18:56:14Z")

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Hello all, i installed the apm server and runing after using a flask app only for testing the apm agent i'm getting an error from the agent perspective Connection to APM Server timed out (url: http://X.X.X.X:8200/v…

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## [Problem validating JSON document against schema](https://discuss.elastic.co/t/problem-validating-json-document-against-schema/156701)

<div class="topic-metadata">

**Author:** [@sebasd44](https://discuss.elastic.co/u/sebasd44)\
**Replies:** 0\
**Last updated:** [November 14, 2018, 3:45pm UTC](https://discuss.elastic.co/t/problem-validating-json-document-against-schema/156701 "2018-11-14T15:45:33Z")

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hi all i have the same problem, but when i start the app it runs it in the loopback env FLASK\_APP=hello.py ELASTIC\_APM\_SERVICE\_NAME=hello flask run http://127.0.0.1:5000/ but i want to run it like this 0.0.0.0 if na…

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## [ELK APM server not working](https://discuss.elastic.co/t/elk-apm-server-not-working/156654)

<div class="topic-metadata">

**Author:** [@MishMick](https://discuss.elastic.co/u/MishMick)\
**Replies:** 3\
**Last updated:** [November 14, 2018, 3:41pm UTC](https://discuss.elastic.co/t/elk-apm-server-not-working/156654 "2018-11-14T15:41:43Z")

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Error: Elastic APM server is not available. (It seems like you are using a version of the APM server which isn't compatible with this agent. Please use APM server 6.5 or newer. ). But from what I have researched so far,…

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## [Java agent 1.0.0 Release Candidate ready for testing](https://discuss.elastic.co/t/java-agent-1-0-0-release-candidate-ready-for-testing/155527)

<div class="topic-metadata">

**Author:** [@felixbarny](https://discuss.elastic.co/u/felixbarny)\
**Replies:** 6\
**Last updated:** [November 14, 2018, 12:20pm UTC](https://discuss.elastic.co/t/java-agent-1-0-0-release-candidate-ready-for-testing/155527 "2018-11-14T12:20:22Z")

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We have just released a release candidate for the Java agent: https://github.com/elastic/apm-agent-java/releases/tag/v1.0.0.RC1 This is your chance to give us feedback before the general availability (1.0.0 release) of …

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## [Java agent build test fail](https://discuss.elastic.co/t/java-agent-build-test-fail/155962)

<div class="topic-metadata">

**Author:** [@paulkeogh](https://discuss.elastic.co/u/paulkeogh)\
**Replies:** 2\
**Last updated:** [November 12, 2018, 9:26am UTC](https://discuss.elastic.co/t/java-agent-build-test-fail/155962 "2018-11-12T09:26:52Z")

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I am trying to build the master branch of the Java agent but one of unit tests is failing; Tests run: 22, Failures: 1, Errors: 0, Skipped: 0, Time elapsed: 3.847 sec \<\<\< FAILURE! - in co.elastic.apm.opentracing.OpenTrac…

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## [WARN elasticsearch/client.go:520 Cannot index event publisher.Event](https://discuss.elastic.co/t/warn-elasticsearch-client-go-520-cannot-index-event-publisher-event/155683)

<div class="topic-metadata">

**Author:** [@gp4004](https://discuss.elastic.co/u/gp4004)\
**Replies:** 1\
**Last updated:** [November 8, 2018, 8:37am UTC](https://discuss.elastic.co/t/warn-elasticsearch-client-go-520-cannot-index-event-publisher-event/155683 "2018-11-08T08:37:50Z")

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Hi, I have the following issue since in the APM logs 2 days : 2018-11-06T09:34:13.816Z WARN elasticsearch/client.go:520 Cannot index event publisher.Event{Content:beat.Event{Timestamp:time.Time{wall:0x35495b80, ext:63…

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## [Apm agent for databases](https://discuss.elastic.co/t/apm-agent-for-databases/155714)

<div class="topic-metadata">

**Author:** [@sebasd44](https://discuss.elastic.co/u/sebasd44)\
**Replies:** 5\
**Last updated:** [November 7, 2018, 2:48pm UTC](https://discuss.elastic.co/t/apm-agent-for-databases/155714 "2018-11-07T14:48:57Z")

</div>

Hi all, i'm newbie for this solution, there is a list for clients APM Node.js Agent \[1.x\] — other versions APM Python Agent \[2.x\] — other versions APM Ruby Agent \[1.x\] — other versions APM Real User Monitoring JavaSc…

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## [Elastic APM java agent (production version?)](https://discuss.elastic.co/t/elastic-apm-java-agent-production-version/155387)

<div class="topic-metadata">

**Author:** [@Oliver\_Joggerst](https://discuss.elastic.co/u/Oliver_Joggerst)\
**Replies:** 1\
**Last updated:** [November 5, 2018, 1:28pm UTC](https://discuss.elastic.co/t/elastic-apm-java-agent-production-version/155387 "2018-11-05T13:28:02Z")

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Hello, we have been installing the Elastic APM server and java agents to our development environment and it seems working great. I just have a small question about the roadmap of the elastic-java-agent. How far is the t…

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## [Elastic APM for .NET core](https://discuss.elastic.co/t/elastic-apm-for-net-core/152359)

<div class="topic-metadata">

**Author:** [@micco](https://discuss.elastic.co/u/micco)\
**Replies:** 2\
**Last updated:** [November 1, 2018, 11:55am UTC](https://discuss.elastic.co/t/elastic-apm-for-net-core/152359 "2018-11-01T11:55:10Z")

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I am interested in the roadmap for an Elastic APM agent for .NET core. Right now I am just looking for any information on it, and possibly ways our team could help contribute to the development of it. Or if there is an …

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## [APM timeline for redis,mysql or other application](https://discuss.elastic.co/t/apm-timeline-for-redis-mysql-or-other-application/154960)

<div class="topic-metadata">

**Author:** [@jerrymouse](https://discuss.elastic.co/u/jerrymouse)\
**Replies:** 4\
**Last updated:** [November 1, 2018, 10:09am UTC](https://discuss.elastic.co/t/apm-timeline-for-redis-mysql-or-other-application/154960 "2018-11-01T10:09:15Z")

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How to look at the cache of the requested time-consuming records, I used redis and mysql but only the DB

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