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Copy file name to clipboardExpand all lines: troubleshoot/observability/apm/common-problems.md
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@@ -26,7 +26,7 @@ This section describes common problems you might encounter when using APM Server
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## No data is indexed [apm-no-data-indexed]
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:stack: all
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:::
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@@ -83,7 +83,7 @@ APM Server currently relies on {{es}} to create indices that do not exist. As a
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## Common SSL-related problems [apm-common-ssl-problems]
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@@ -134,7 +134,7 @@ A firewall is refusing the connection. Check if a firewall is blocking the traff
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## I/O Timeout [apm-io-timeout]
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:stack: all
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## Tail-based sampling causing high system memory usage and high disk IO [apm-tail-based-sampling-memory-disk-io]
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Tail-based sampling requires minimal memory to run, and there should not be a noticeable increase in RSS memory usage. However, since tail-based sampling writes data to disk, it is possible to see a significant increase in OS page cache memory usage due to disk IO. If you see a drop in throughput and excessive disk activity after enabling tail-based sampling, please ensure that there is enough memory headroom in the system for OS page cache to perform disk IO efficiently.
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## Too many unique transaction names [troubleshooting-too-many-transactions]
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## Unknown route [troubleshooting-unknown-route]
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@@ -245,7 +245,7 @@ To resolve this, you’ll need to head over to the relevant [APM agent documenta
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## Fields are not searchable [troubleshooting-fields-unsearchable]
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@@ -262,7 +262,7 @@ As an example, some APM agents store cookie values in `http.request.cookies`. Si
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## Service Maps: no connection between client and server [service-map-rum-connections]
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@@ -272,7 +272,7 @@ This setting is necessary, for example, for cross-origin requests. If you have a
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## No data shown in the infrastructure tab [troubleshooting-apm-infra-data]
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@@ -292,7 +292,7 @@ For example, if the APM agent is not configured to use the correct host name, th
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## Common response codes [observability-apm-troubleshooting-common-response-codes]
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