[CONNECTORS-1312] jcifs.smb.SmbException: Connection reset by peer: socket write error

• Type: Bug
• Status: Resolved
• Priority: Major
• Resolution: Fixed
• Affects Version/s: ManifoldCF 2.5
• Fix Version/s: ManifoldCF 2.5
• Component/s: JCIFS connector

Environment

Windows x64, java 1.8.x

• Assignee: Karl Wright
• Reporter: Konstantin Avdeev
• Created: 04/May/16 20:55
• Updated: 07/May/16 19:57
• Resolved: 07/May/16 19:57

Description

hi Karl,

we've found another JCIFS exception: Windows share jobs stop when encountering a "Connection reset by peer" error, e.g.:

ERROR 2016-05-03 15:29:24,209 (Worker thread '80') - JCIFS: SmbException tossed processing smb://server.domain.com/path/file.ppt
jcifs.smb.SmbException: Connection reset by peer: socket write error
java.net.SocketException: Connection reset by peer: socket write error
	at java.net.SocketOutputStream.socketWrite0(Native Method)
	at java.net.SocketOutputStream.socketWrite(SocketOutputStream.java:109)
	at java.net.SocketOutputStream.write(SocketOutputStream.java:153)
	at jcifs.smb.SmbTransport.doSend(SmbTransport.java:453)
	at jcifs.util.transport.Transport.sendrecv(Transport.java:67)
	at jcifs.smb.SmbTransport.send(SmbTransport.java:655)
	at jcifs.smb.SmbSession.send(SmbSession.java:238)
	at jcifs.smb.SmbTree.send(SmbTree.java:119)
	at jcifs.smb.SmbFile.send(SmbFile.java:775)
	at jcifs.smb.SmbFileInputStream.readDirect(SmbFileInputStream.java:181)
	at jcifs.smb.SmbFileInputStream.read(SmbFileInputStream.java:142)
	at java.io.BufferedInputStream.read1(BufferedInputStream.java:284)
	at java.io.BufferedInputStream.read(BufferedInputStream.java:345)
	at java.io.FilterInputStream.read(FilterInputStream.java:107)
	at java.nio.file.Files.copy(Files.java:2908)
	at java.nio.file.Files.copy(Files.java:3027)
	at org.apache.tika.io.TikaInputStream.getPath(TikaInputStream.java:587)
	at org.apache.tika.io.TikaInputStream.getFile(TikaInputStream.java:615)
	at org.apache.tika.parser.microsoft.POIFSContainerDetector.getTopLevelNames(POIFSContainerDetector.java:358)
	at org.apache.tika.parser.microsoft.POIFSContainerDetector.detect(POIFSContainerDetector.java:424)
	at org.apache.tika.detect.CompositeDetector.detect(CompositeDetector.java:77)
	at org.apache.tika.parser.AutoDetectParser.parse(AutoDetectParser.java:112)
	at org.apache.manifoldcf.agents.transformation.tika.TikaParser.parse(TikaParser.java:48)
	at org.apache.manifoldcf.agents.transformation.tika.TikaExtractor.addOrReplaceDocumentWithException(TikaExtractor.java:227)
	at org.apache.manifoldcf.agents.incrementalingest.IncrementalIngester$PipelineAddEntryPoint.addOrReplaceDocumentWithException(IncrementalIngester.java:3224)
	at org.apache.manifoldcf.agents.incrementalingest.IncrementalIngester$PipelineAddFanout.sendDocument(IncrementalIngester.java:3075)
	at org.apache.manifoldcf.agents.incrementalingest.IncrementalIngester$PipelineObjectWithVersions.addOrReplaceDocumentWithException(IncrementalIngester.java:2706)
	at org.apache.manifoldcf.agents.incrementalingest.IncrementalIngester.documentIngest(IncrementalIngester.java:756)
	at org.apache.manifoldcf.crawler.system.WorkerThread$ProcessActivity.ingestDocumentWithException(WorkerThread.java:1583)
	at org.apache.manifoldcf.crawler.system.WorkerThread$ProcessActivity.ingestDocumentWithException(WorkerThread.java:1548)
	at org.apache.manifoldcf.crawler.connectors.sharedrive.SharedDriveConnector.processDocuments(SharedDriveConnector.java:979)
	at org.apache.manifoldcf.crawler.system.WorkerThread.run(WorkerThread.java:399)

Current workaround - to start the job again (manually or by the scheduler).

It is clear, that there are many errors, when it makes no sense to skip a failed URL and continue the job, e.g.:

Error: SmbAuthException thrown: Logon failure: unknown user name or bad password.

I'm thinking about a general solution, like defining a list (through the UI or properties.xml) with non severe exceptions, like "file busy" or "symlink detected" etc, so the admins would be able to specify, when the crawler should stop and when it should retry, skip and go further.

What do you think?
Thank you!