Exception in LedgerCache causes addEntry request to fail
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Key: BOOKKEEPER-22
URL: https://issues.apache.org/jira/browse/BOOKKEEPER-22
Project: Bookkeeper
Issue Type: Bug
Reporter: Flavio Junqueira
Priority: Critical
The following exception causes a client to stall:
{noformat}
WARN - [NIOServerFactory:NIOServerFactory@123] - Exception in server socket
loop: /0.0.0.0
java.util.NoSuchElementException
at java.util.HashMap$HashIterator.nextEntry(HashMap.java:796)
at java.util.HashMap$EntryIterator.next(HashMap.java:834)
at java.util.HashMap$EntryIterator.next(HashMap.java:832)
at
org.apache.bookkeeper.bookie.LedgerCache.grabCleanPage(LedgerCache.java:429)
at
org.apache.bookkeeper.bookie.LedgerCache.putEntryOffset(LedgerCache.java:133)
at
org.apache.bookkeeper.bookie.LedgerDescriptor.addEntry(LedgerDescriptor.java:84)
at org.apache.bookkeeper.bookie.Bookie.addEntry(Bookie.java:477)
at
org.apache.bookkeeper.proto.BookieServer.processPacket(BookieServer.java:108)
at
org.apache.bookkeeper.proto.NIOServerFactory$Cnxn.readRequest(NIOServerFactory.java:309)
at
org.apache.bookkeeper.proto.NIOServerFactory$Cnxn.doIO(NIOServerFactory.java:207)
at
org.apache.bookkeeper.proto.NIOServerFactory.run(NIOServerFactory.java:118)
{noformat}
The client remains connected to the bookie, but never receives a response to
the addEntry, causing the client pipeline to stall.
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