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Warning errors under FrontendServer.0.0.log

syed_hashmi
Newcomer

Hi,

We are seeing multiple warning errors on our AppMon Server (hosted on AWS) on FrontendServer.log file.

Any guidance will be appreciated.

2018-08-01 14:31:30 WARNING [DefaultSocketHandlerRunnable] closing connection (reason: 'socket reached end of stream') Fetched-******:58191:Inbound:Encrypted:LZ4:54f80765-260f-4074-b4c3-da6823d51191. Connection has been lost in Thread: ClientCommunication-Released-******:58191:Inbound:Encrypted:LZ4:54f80765-260f-4074-b4c3-da6823d51191-Listener: com.dynatrace.diagnostics.communication.tcp.connection.SocketConnection logConnectionWillBeClosedMessage:316
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 sun.security.ssl.InputRecord.readFully(InputRecord.java:465)
at sun.security.ssl.InputRecord.read(InputRecord.java:503)
at sun.security.ssl.SSLSocketImpl.readRecord(SSLSocketImpl.java:973)
at sun.security.ssl.SSLSocketImpl.readDataRecord(SSLSocketImpl.java:930)
at sun.security.ssl.AppInputStream.read(AppInputStream.java:105)
at java.io.BufferedInputStream.fill(BufferedInputStream.java:246)
at java.io.BufferedInputStream.read(BufferedInputStream.java:265)
at com.dynatrace.diagnostics.sdk.io.streams.IoStatsAwareInputStream.read(IoStatsAwareInputStream.java:23)
at java.io.DataInputStream.readInt(DataInputStream.java:387)
at com.dynatrace.diagnostics.sdk.io.streams.ConditionallyDecompressingInputStream.readCompressedChunk(ConditionallyDecompressingInputStream.java:27)
at com.dynatrace.diagnostics.sdk.io.streams.CompressedInputStream.readChunk(CompressedInputStream.java:26)
at com.dynatrace.diagnostics.sdk.io.streams.ChunkedInputStream.readNextChunk(ChunkedInputStream.java:195)
at com.dynatrace.diagnostics.sdk.io.streams.ChunkedInputStream.read(ChunkedInputStream.java:115)
at com.dynatrace.diagnostics.sdk.io.streams.IoStatsAwareInputStream.read(IoStatsAwareInputStream.java:23)
at java.io.DataInputStream.readByte(DataInputStream.java:265)
at com.dynatrace.diagnostics.sdk.io.DataInputStreamDataInput.readByte(DataInputStreamDataInput.java:51)
at com.dynatrace.diagnostics.communication.tcp.connection.DefaultSocketHeaderReaderWriter30.readHeader(DefaultSocketHeaderReaderWriter30.java:38)
at com.dynatrace.diagnostics.communication.tcp.connection.DefaultSocketHeaderReaderWriter30.readHeader(DefaultSocketHeaderReaderWriter30.java:25)
at com.dynatrace.diagnostics.communication.tcp.socket.DefaultSocketHandlerRunnable.handleRequest(DefaultSocketHandlerRunnable.java:65)
at com.dynatrace.diagnostics.communication.tcp.socket.DefaultSocketHandlerRunnable.execute(DefaultSocketHandlerRunnable.java:55)
at com.dynatrace.diagnostics.util.threads.StatusRunnable.run(StatusRunnable.java:46)
at java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1142)
at java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:617)
at java.lang.Thread.run(Thread.java:745)
2018-08-01 14:31:31 WARNING [DefaultSessionManager] unable to close one of 1 outbound connection(s) for session ******:Client: could not fetch connection in 1000ms - forcing close
2018-08-01 14:31:31 WARNING [DefaultSessionManager] forcing socket close on all outbound connections for session ******:Encrypted:LZ4:Client
2018-08-01 14:31:31 WARNING [DefaultSessionManager] forcing socket close on all inbound connections for session ******:Encrypted:LZ4:Client
2018-08-01 14:31:31 WARNING [FastConnectionPool] connection Closed(Forced)-******:58208:Outbound:Encrypted:LZ4:dc2415f6-4260-4e4a-ab33-a7136a26582a was not in pool - unable to remove...
2018-08-01 14:31:31 INFO [DefaultSessionManager] successfully closed session ******:Encrypted:LZ4:Client
2018-08-01 14:31:31 INFO [DefaultSessionManager] successfully closed session :Encrypted:Uncompressed:ClientViaFrontend

Thanks,

Uzair


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