What EnsembleSize, WriteQuorumSize and AckQuorumSize would you recommend, so we never see this? What other ledger creation parameters do you need information about?
-Thanks, Prajakta From: Enrico Olivelli - Diennea <enrico.olive...@diennea.com> Sent: Thursday, November 28, 2019 5:19 PM To: user@bookkeeper.apache.org Cc: f...@apache.org Subject: Re: Bookeeper exception on pods restart [EXTERNAL EMAIL] Hi Prajakta, What ledger creation parameters are you using ? Ensamble size, Write quorum size, Ack quorum size ? If ackQuorumSize < WriteQuorumSize it is possible that a write to the bookie failed and even if the entry is supposed to be on the bookie it never reached it but the overall single write succeeded because a writequorum of bookies acknowledged the write. Enrico Il giorno 28/11/19, 12:44 "prajakta.belgu...@dell.com<mailto:prajakta.belgu...@dell.com>" <prajakta.belgu...@dell.com<mailto:prajakta.belgu...@dell.com>> ha scritto: Hello Team, We have a question about an issue we are running into with Bookeeper. We use bookkeeper version 4.7.3. This issue occurs occasionally when Bookkeeper servers are restarted. We see the following error in the logs for some time, which blocks Pravega's operations for the same duration. Not knowing the internals of Bookeeper, but just based on the exception alone, it seems like Bookeeper might not be locate the files temporarily. What could be causing this? 2019-11-28 03:52:26,491 - ERROR - [BookieReadThreadPool-OrderedExecutor-0-0:ReadEntryProcessorV3@235] - IOException while reading entry: 25 from ledger 56 java.io<https://slack-redir.net/link?url=http%3A%2F%2Fjava.io>.FileNotFoundException: No file for log 1 for 56 with location 4744138143 at org.apache.bookkeeper.bookie.EntryLogger.findFile(EntryLogger.java:1165) at org.apache.bookkeeper.bookie.EntryLogger.getChannelForLogId(EntryLogger.java:1100) at org.apache.bookkeeper.bookie.EntryLogger.internalReadEntry(EntryLogger.java:1002) at org.apache.bookkeeper.bookie.EntryLogger.readEntry(EntryLogger.java:1051) at org.apache.bookkeeper.bookie.InterleavedLedgerStorage.getEntry(InterleavedLedgerStorage.java:305) at org.apache.bookkeeper.bookie.SortedLedgerStorage.getEntry(SortedLedgerStorage.java:153) at org.apache.bookkeeper.bookie.LedgerDescriptorImpl.readEntry(LedgerDescriptorImpl.java:153) at org.apache.bookkeeper.bookie.Bookie.readEntry(Bookie.java:1305) at org.apache.bookkeeper.proto.ReadEntryProcessorV3.readEntry(ReadEntryProcessorV3.java:175) at org.apache.bookkeeper.proto.ReadEntryProcessorV3.readEntry(ReadEntryProcessorV3.java:155) at org.apache.bookkeeper.proto.ReadEntryProcessorV3.getReadResponse(ReadEntryProcessorV3.java:218) at org.apache.bookkeeper.proto.ReadEntryProcessorV3.executeOp(ReadEntryProcessorV3.java:264) at org.apache.bookkeeper.proto.ReadEntryProcessorV3.safeRun(ReadEntryProcessorV3.java:260) at org.apache.bookkeeper.common.util.SafeRunnable.run(SafeRunnable.java:36) at java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1149) at java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:624) -Thanks, Prajakta ________________________________ CONFIDENTIALITY & PRIVACY NOTICE This e-mail (including any attachments) is strictly confidential and may also contain privileged information. If you are not the intended recipient you are not authorised to read, print, save, process or disclose this message. If you have received this message by mistake, please inform the sender immediately and destroy this e-mail, its attachments and any copies. Any use, distribution, reproduction or disclosure by any person other than the intended recipient is strictly prohibited and the person responsible may incur in penalties. The use of this e-mail is only for professional purposes; there is no guarantee that the correspondence towards this e-mail will be read only by the recipient, because, under certain circumstances, there may be a need to access this email by third subjects belonging to the Company.
