能够建立APM连接
2021-03-09 17:45:05,741 [Attach Listener] INFO co.elastic.apm.agent.configuration.StartupInfo - VM Arguments: [-XX:TieredStopAtLevel=1, -Xmx6g, -Dfile.encoding=UTF-8, -Duser.country=IN, -Duser.language=en, -Duser.variant]
2021-03-09 17:45:08,192 [Attach Listener] INFO co.elastic.apm.agent.impl.ElasticApmTracer - Tracer switched to RUNNING state
2021-03-09 17:45:08,734 [elastic-apm-server-healthcheck] INFO co.elastic.apm.agent.report.ApmServerHealthChecker - Elastic APM server is available: { "build_date": "2021-02-15T12:37:48Z", "build_sha": "e77061bb3aaedae5ae8dd0ca193eb662513aedde", "version": "7.11.0"}
但是连接后，它仍然会抛出这个错误。这里可能有什么问题，感谢您对此的任何投入
2021-03-09 17:45:53,484 [elastic-apm-server-reporter] INFO co.elastic.apm.agent.report.IntakeV2ReportingEventHandler - Backing off for 0 seconds (+/-10%)
2021-03-09 17:45:53,489 [elastic-apm-server-reporter] ERROR co.elastic.apm.agent.report.IntakeV2ReportingEventHandler - Error sending data to APM server: Read timed out, response code is -1
2021-03-09 17:45:53,489 [elastic-apm-server-reporter] WARN co.elastic.apm.agent.report.IntakeV2ReportingEventHandler - null
2021-03-09 17:46:08,890 [elastic-apm-server-reporter] INFO co.elastic.apm.agent.report.IntakeV2ReportingEventHandler - Backing off for 1 seconds (+/-10%)
2021-03-09 17:46:09,922 [elastic-apm-server-reporter] ERROR co.elastic.apm.agent.report.IntakeV2ReportingEventHandler - Error sending data to APM server: Read timed out, response code is -1
2021-03-09 17:46:09,922 [elastic-apm-server-reporter] WARN co.elastic.apm.agent.report.IntakeV2ReportingEventHandler - null