vishalananth07 opened a new issue #5749: Bookie does not start because of UnknownHostException URL: https://github.com/apache/pulsar/issues/5749 We are trying to set up Pulsar using 3 systems each with 8GB RAM and AMD A8 processors. We are planning on running bookkeeper, zookeeper, broker on the same machines. **Describe the bug** [main] ERROR org.apache.bookkeeper.server.Main - Failed to build bookie server java.net.UnknownHostException: Trying to listen on loopback address, 127.0.1.1:3181 but this is forbidden by default (see ServerConfiguration#getAllowLoopback()). **To Reproduce** Steps to reproduce the behavior: 1. Follow the setup steps given at https://pulsar.apache.org/docs/en/deploy-bare-metal/ 2. We added the servers to the zookeeper.conf file and create data directory and id. We are using the following Zookeper configuration ``` server.1=10.6.8.14:2888:3888 server.2=10.6.8.13:2888:3888 server.3=10.6.8.15:2888:3888 ``` 3. We initialized cluster metadata as follows in the server.1 machine ``` bin/pulsar initialize-cluster-metadata --cluster pulsar-cluster-1 --zookeeper 10.6.8.14:2181 --web-service-url http://10.6.8.14:8080,10.6.8.13:8080,10.6.8.15:8080 --broker-service-url pulsar://10.6.8.14:6650,10.6.8.13:6650,10.6.8.15:6650 --configuration-store 10.6.8.14:2181 ``` 4. We changed bookkeeper.conf as follows ``` zkServers=10.6.8.14:2181,10.6.8.13:2181,10.6.8.15:2181 ``` 5. We started Bookie and got the following error ``` bin/bookkeeper bookie JMX enabled by default JAVA_HOME not set, using java from PATH. (/usr/bin/java) 15:02:38.366 [main] INFO org.apache.bookkeeper.server.Main - Using configuration file /home/slave1fyp/apache-pulsar-2.4.1/conf/bookkeeper.conf 15:02:38.371 [main] INFO org.apache.bookkeeper.server.Main - Hello, I'm your bookie, listening on port 3181. Metadata service uri is zk+null://10.6.8.14:2181;10.6.8.13:2181;10.6.8.15:2181/ledgers. Journals are in [data/bookkeeper/journal]. Ledgers are stored in data/bookkeeper/ledgers. 15:02:38.394 [main] INFO org.apache.bookkeeper.server.Main - Load lifecycle component : org.apache.bookkeeper.server.service.StatsProviderService 15:02:38.741 [main] INFO org.apache.bookkeeper.proto.BookieServer - { "readBufferSizeBytes" : "4096", "statsProviderClass" : "org.apache.bookkeeper.stats.prometheus.PrometheusMetricsProvider", "majorCompactionThreshold" : "0.5", "numJournalCallbackThreads" : "8", "httpServerPort" : "8000", "lostBookieRecoveryDelay" : "0", "journalAlignmentSize" : "4096", "compactionRateByBytes" : "1000000", "httpServerClass" : "org.apache.bookkeeper.http.vertx.VertxHttpServer", "dbStorage_rocksDB_numFilesInLevel0" : "4", "minUsableSizeForIndexFileCreation" : "1073741824", "gcOverreplicatedLedgerWaitTime" : "86400000", "journalMaxGroupWaitMSec" : "1", "dbStorage_rocksDB_numLevels" : "-1", "dbStorage_rocksDB_bloomFilterBitsPerKey" : "10", "ledgerStorageClass" : "org.apache.bookkeeper.bookie.storage.ldb.DbLedgerStorage", "auditorPeriodicBookieCheckInterval" : "86400", "gcWaitTime" : "900000", "compactionRate" : "1000", "fileInfoFormatVersionToWrite" : "0", "entryLogFilePreallocationEnabled" : "true", "journalSyncData" : "true", "zkServers" : "[10.6.8.14:2181, 10.6.8.13:2181, 10.6.8.15:2181]", "compactionRateByEntries" : "1000", "dbStorage_rocksDB_maxSizeInLevel1MB" : "256", "diskCheckInterval" : "10000", "auditorPeriodicCheckInterval" : "604800", "dbStorage_rocksDB_writeBufferSizeMB" : "64", "autoRecoveryDaemonEnabled" : "true", "maxPendingAddRequestsPerThread" : "10000", "majorCompactionInterval" : "86400", "httpServerEnabled" : "false", "flushInterval" : "60000", "journalFlushWhenQueueEmpty" : "false", "minorCompactionInterval" : "3600", "dbStorage_rocksDB_blockCacheSize" : "", "isThrottleByBytes" : "false", "numAddWorkerThreads" : "0", "dbStorage_rocksDB_sstSizeInMB" : "64", "journalDirectory" : "data/bookkeeper/journal", "journalWriteBufferSizeKB" : "64", "diskUsageThreshold" : "0.95", "openFileLimit" : "0", "prometheusStatsHttpPort" : "8000", "zkLedgersRootPath" : "/ledgers", "journalMaxSizeMB" : "2048", "journalAdaptiveGroupWrites" : "true", "openLedgerRereplicationGracePeriod" : "30", "ledgerDirectories" : "data/bookkeeper/ledgers", "zkTimeout" : "30000", "dbStorage_rocksDB_blockSize" : "65536", "journalMaxBackups" : "5", "maxPendingReadRequestsPerThread" : "2500", "useHostNameAsBookieID" : "false", "rereplicationEntryBatchSize" : "100", "allowLoopback" : "false", "readOnlyModeEnabled" : "true", "journalRemoveFromPageCache" : "true", "dbStorage_readAheadCacheMaxSizeMb" : "", "zkEnableSecurity" : "false", "numHighPriorityWorkerThreads" : "8", "dbStorage_readAheadCacheBatchSize" : "1000", "journalFormatVersionToWrite" : "5", "writeBufferSizeBytes" : "65536", "bookiePort" : "3181", "dbStorage_writeCacheMaxSizeMb" : "", "pageLimit" : "0", "logSizeLimit" : "1073741824", "advertisedAddress" : "", "bookieDeathWatchInterval" : "1000", "numReadWorkerThreads" : "8", "minorCompactionThreshold" : "0.2", "serverTcpNoDelay" : "true", "journalBufferedWritesThreshold" : "524288", "compactionMaxOutstandingRequests" : "100000", "journalPreAllocSizeMB" : "16" } 15:02:39.490 [main] ERROR org.apache.bookkeeper.server.Main - Failed to build bookie server java.net.UnknownHostException: Trying to listen on loopback address, 127.0.1.1:3181 but this is forbidden by default (see ServerConfiguration#getAllowLoopback()). If this happen, you can consider specifying the network interface to listen on (e.g. listeningInterface=eth0) or specifying the advertised address (e.g. advertisedAddress=172.x.y.z) at org.apache.bookkeeper.bookie.Bookie.getBookieAddress(Bookie.java:570) ~[org.apache.bookkeeper-bookkeeper-server-4.9.2.jar:4.9.2] at org.apache.bookkeeper.proto.BookieNettyServer.<init>(BookieNettyServer.java:164) ~[org.apache.bookkeeper-bookkeeper-server-4.9.2.jar:4.9.2] at org.apache.bookkeeper.proto.BookieServer.<init>(BookieServer.java:104) ~[org.apache.bookkeeper-bookkeeper-server-4.9.2.jar:4.9.2] at org.apache.bookkeeper.server.service.BookieService.<init>(BookieService.java:43) ~[org.apache.bookkeeper-bookkeeper-server-4.9.2.jar:4.9.2] at org.apache.bookkeeper.server.Main.buildBookieServer(Main.java:301) ~[org.apache.bookkeeper-bookkeeper-server-4.9.2.jar:4.9.2] at org.apache.bookkeeper.server.Main.doMain(Main.java:221) [org.apache.bookkeeper-bookkeeper-server-4.9.2.jar:4.9.2] at org.apache.bookkeeper.server.Main.main(Main.java:203) [org.apache.bookkeeper-bookkeeper-server-4.9.2.jar:4.9.2] at org.apache.bookkeeper.proto.BookieServer.main(BookieServer.java:314) [org.apache.bookkeeper-bookkeeper-server-4.9.2.jar:4.9.2] ``` **Expected behavior** Bookkeeper starts **Desktop (please complete the following information):** - 3 PC's with 8GB RAM and AMD A8 processors
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