Major Description
If an SSL handshake request for p2 metadata does not receive a response the requesting thread will hang forever. This can cause a very large backup of p2 threads, since the thread making the metadata request will be holding the UID lock for the metadata files.
Note that this is similar to NEXUS-8823, but the p2 metadata request doesn't use HttpClient, it uses the Eclipse Communication Framework (ECF). So the fix fo NEXUS-8823 does not apply here.
"qtp418951675-41187" #41187 prio=5 os_prio=0 tid=0x00007fa898643800 nid=0x3fe3 runnable [0x00007fa83bdb8000]
java.lang.Thread.State: RUNNABLE
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:983)
- locked <0x00000007968c0658> (a java.lang.Object)
at sun.security.ssl.SSLSocketImpl.performInitialHandshake(SSLSocketImpl.java:1385)- locked <0x00000007968c0618> (a java.lang.Object)
at sun.security.ssl.SSLSocketImpl.startHandshake(SSLSocketImpl.java:1413)
at sun.security.ssl.SSLSocketImpl.startHandshake(SSLSocketImpl.java:1397)
at sun.net.www.protocol.https.HttpsClient.afterConnect(HttpsClient.java:559)
at sun.net.www.protocol.https.AbstractDelegateHttpsURLConnection.connect(AbstractDelegateHttpsURLConnection.java:185)
at sun.net.www.protocol.http.HttpURLConnection.getInputStream0(HttpURLConnection.java:1564)- locked <0x00000007968b3c90> (a sun.net.www.protocol.https.DelegateHttpsURLConnection)
at sun.net.www.protocol.http.HttpURLConnection.getInputStream(HttpURLConnection.java:1492)- locked <0x00000007968b3c90> (a sun.net.www.protocol.https.DelegateHttpsURLConnection)
at sun.net.www.protocol.https.HttpsURLConnectionImpl.getInputStream(HttpsURLConnectionImpl.java:263)- locked <0x00000007968b3978> (a sun.net.www.protocol.https.HttpsURLConnectionImpl)
at org.eclipse.ecf.provider.filetransfer.retrieve.UrlConnectionRetrieveFileTransfer.getDecompressedStream(UrlConnectionRetrieveFileTransfer.java:542)
at org.eclipse.ecf.provider.filetransfer.retrieve.UrlConnectionRetrieveFileTransfer.openStreams(UrlConnectionRetrieveFileTransfer.java:312)
at org.eclipse.ecf.provider.filetransfer.retrieve.AbstractRetrieveFileTransfer.sendRetrieveRequest(AbstractRetrieveFileTransfer.java:889)
at org.eclipse.ecf.provider.filetransfer.retrieve.AbstractRetrieveFileTransfer.sendRetrieveRequest(AbstractRetrieveFileTransfer.java:576)
at org.eclipse.ecf.provider.filetransfer.retrieve.MultiProtocolRetrieveAdapter.sendRetrieveRequest(MultiProtocolRetrieveAdapter.java:106)
at org.eclipse.equinox.internal.p2.transport.ecf.FileReader.sendRetrieveRequest(FileReader.java:349)
at org.eclipse.equinox.internal.p2.transport.ecf.FileReader.readInto(FileReader.java:295)
at org.eclipse.equinox.internal.p2.transport.ecf.RepositoryTransport.download(RepositoryTransport.java:80)
at org.eclipse.equinox.internal.p2.transport.ecf.RepositoryTransport.download(RepositoryTransport.java:130)
at org.eclipse.equinox.internal.p2.repository.helpers.AbstractRepositoryManager.loadIndexFile(AbstractRepositoryManager.java:721)
at org.eclipse.equinox.internal.p2.repository.helpers.AbstractRepositoryManager.loadRepository(AbstractRepositoryManager.java:640)
at org.eclipse.equinox.internal.p2.metadata.repository.MetadataRepositoryManager.loadRepository(MetadataRepositoryManager.java:96)
at org.eclipse.equinox.internal.p2.metadata.repository.MetadataRepositoryManager.loadRepository(MetadataRepositoryManager.java:92)
at org.sonatype.p2.bridge.internal.MetadataRepositoryService.createProxyRepository(MetadataRepositoryService.java:283)
at org.sonatype.nexus.plugins.p2.repository.proxy.P2ProxyMetadataSource.doRetrieveContentFileItems(P2ProxyMetadataSource.java:187)