# Getting lots of context canceled - internal error in APM server logs **URL:** \ **Category:** APM\ **Tags:** java, server\ **Created:** [July 17, 2020, 5:52am UTC](https://discuss.elastic.co/t/getting-lots-of-context-canceled-internal-error-in-apm-server-logs/241582 "2020-07-17T05:52:45Z")\ **Posts on this page:** 6\ **Page:** 1
**Author:** ![tarund](https://avatars.discourse-cdn.com/v4/letter/t/977dab/32.png) [@tarund](https://discuss.elastic.co/u/tarund)\ **Post date:** [July 17, 2020, 5:52am UTC](https://discuss.elastic.co/t/getting-lots-of-context-canceled-internal-error-in-apm-server-logs/241582/1 "2020-07-17T05:52:45Z")
I am having the below setup **Elasticsearch version** : 7.5.1 **APM Server version** : 7.5.1 **APM Agent language and version** : elasticapm-java/1.12.0 I am seeing lot of the below errors - ```auto 2020-07-17T11:10:00.132+0530 ERROR [request] middleware/log_middleware.go:74 internal error {"request_id": "cda7d079-df4e-4a1f-a2c8-f98d020bbb0b", "method": "POST", "URL": "/intake/v2/events", "content_length": -1, "remote_address": "2.12.27.3", "user-agent": "elasticapm-java/1.12.0", "response_code": 500, "error": "context canceled"} ``` It's about 10% of the events accepted/ingested. I tried debug logging as well, but could not relate the error message to any specific event. Can u help me understand what does this error signify ? when does amp-server throw such error ? ---
**Author:** ![axw](https://sea2.discourse-cdn.com/elastic/user_avatar/discuss.elastic.co/axw/32/28197_2.png) [@axw](https://discuss.elastic.co/u/axw)\ **Post date:** [July 17, 2020, 8:27am UTC](https://discuss.elastic.co/t/getting-lots-of-context-canceled-internal-error-in-apm-server-logs/241582/2 "2020-07-17T08:27:16Z")
Are there any other errors, or only "context canceled"? Any errors in the agent log? This server log message might mean that the server is timing out while reading requests from or writing responses to the agent. ---
**Author:** ![tarund](https://avatars.discourse-cdn.com/v4/letter/t/977dab/32.png) [@tarund](https://discuss.elastic.co/u/tarund)\ **Post date:** [July 21, 2020, 5:46am UTC](https://discuss.elastic.co/t/getting-lots-of-context-canceled-internal-error-in-apm-server-logs/241582/3 "2020-07-21T05:46:19Z")
No errors in the agent log(u mean the application log on which the agent is running). Is there a way to log agent errors separately ? will this error imply data loss ? ---
**Author:** ![axw](https://sea2.discourse-cdn.com/elastic/user_avatar/discuss.elastic.co/axw/32/28197_2.png) [@axw](https://discuss.elastic.co/u/axw)\ **Post date:** [July 21, 2020, 6:21am UTC](https://discuss.elastic.co/t/getting-lots-of-context-canceled-internal-error-in-apm-server-logs/241582/4 "2020-07-21T06:21:10Z")
> No errors in the agent log(u mean the application log on which the agent is running). Is there a way to log agent errors separately ? You can configure the Java agent to log to a separate file: [Logging configuration options | APM Java Agent Reference [1.x] | Elastic](https://www.elastic.co/guide/en/apm/agent/java/current/config-logging.html#config-log-file) > will this error imply data loss ? Probably. You may need to [tune the APM Server performance](https://www.elastic.co/guide/en/apm/server/7.9/tune-apm-server.html) and/or [reduce the sampling rate](https://www.elastic.co/guide/en/apm/agent/java/current/config-core.html#config-transaction-sample-rate) to reduce load on the server. ---
**Author:** ![tarund](https://avatars.discourse-cdn.com/v4/letter/t/977dab/32.png) [@tarund](https://discuss.elastic.co/u/tarund)\ **Post date:** [July 22, 2020, 4:23am UTC](https://discuss.elastic.co/t/getting-lots-of-context-canceled-internal-error-in-apm-server-logs/241582/5 "2020-07-22T04:23:22Z")
I found the below in agent logs -- 2020-07-22 00:04:07.019 [apm-reporter] ERROR co.elastic.apm.agent.report.IntakeV2ReportingEventHandler - Error sending data to APM server: Read timed out, response code is -1 2020-07-22 00:04:07.018 [TaskManagerPoolThread-82] TRACE co.elastic.apm.agent.impl.transaction.AbstractSpan - incrementing references at 2020-07-22 00:04:07.019 [apm-reporter] DEBUG co.elastic.apm.agent.report.IntakeV2ReportingEventHandler - Sending payload to APM server failed 2020-07-22 00:04:32.757 [apm-reporter] DEBUG co.elastic.apm.agent.report.IntakeV2ReportingEventHandler - Sending payload to APM server failed java.net.SocketTimeoutException: Read timed out at java.net.SocketInputStream.socketRead0(Native Method) at java.net.SocketInputStream.socketRead(SocketInputStream.java:116) at java.net.SocketInputStream.read(SocketInputStream.java:171) at java.net.SocketInputStream.read(SocketInputStream.java:141) at java.io.BufferedInputStream.fill(BufferedInputStream.java:246) at java.io.BufferedInputStream.read1(BufferedInputStream.java:286) at java.io.BufferedInputStream.read(BufferedInputStream.java:345) at sun.net.www.http.HttpClient.parseHTTPHeader(HttpClient.java:735) at sun.net.www.http.HttpClient.parseHTTP(HttpClient.java:678) at sun.net.www.protocol.http.HttpURLConnection.getInputStream0(HttpURLConnection.java:1587) at sun.net.www.protocol.http.HttpURLConnection.getInputStream(HttpURLConnection.java:1492) at co.elastic.apm.agent.report.IntakeV2ReportingEventHandler.flush(IntakeV2ReportingEventHandler.java:224) at co.elastic.apm.agent.report.IntakeV2ReportingEventHandler.handleEvent(IntakeV2ReportingEventHandler.java:128) at co.elastic.apm.agent.report.IntakeV2ReportingEventHandler.onEvent(IntakeV2ReportingEventHandler.java:116) at co.elastic.apm.agent.report.IntakeV2ReportingEventHandler.onEvent(IntakeV2ReportingEventHandler.java:50) at co.elastic.apm.agent.shaded.lmax.disruptor.BatchEventProcessor.processEvents(BatchEventProcessor.java:168) at co.elastic.apm.agent.shaded.lmax.disruptor.BatchEventProcessor.run(BatchEventProcessor.java:125) at java.lang.Thread.run(Thread.java:748) 2020-07-22 00:04:32.758 [apm-reporter] WARN co.elastic.apm.agent.report.IntakeV2ReportingEventHandler - null 2020-07-22 00:04:32.758 [apm-reporter] ERROR co.elastic.apm.agent.report.HttpUtils - Exception when closing input stream of HttpURLConnection. 2020-07-22 00:05:32.919 [apm-reporter] ERROR co.elastic.apm.agent.report.IntakeV2ReportingEventHandler - Error sending data to APM server: Error writing request body to server, response code is -1 ---
**Author:** ![system](https://us1.discourse-cdn.com/elastic/original/3X/1/a/1ac57faf039f6b580b3f104ef42a2a89e41014de.png) [@system](https://discuss.elastic.co/u/system)\ **Post date:** [August 12, 2020, 12:23am UTC](https://discuss.elastic.co/t/getting-lots-of-context-canceled-internal-error-in-apm-server-logs/241582/6 "2020-08-12T00:23:27Z")
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