在我的Mac升级到蒙特雷后，我不得不将cassandra从3.x.x重新安装到4.0.1。
我无法使用"Cassandra-f"命令启动Cassandra 4.0.1。我看到以下警告/错误：
WARN [main] 2022-01-19 17:11:58,324 StartupChecks.java:143 - jemalloc shared library could not be preloaded to speed up memory allocations
WARN [main] 2022-01-19 17:11:58,325 StartupChecks.java:187 - JMX is not enabled to receive remote connections. Please see cassandra-env.sh for more info.
错误：
ERROR [SSTableBatchOpen:12] 2022-01-19 17:12:02,616 DebuggableThreadPoolExecutor.java:263 - Error in ThreadPoolExecutor
java.lang.AssertionError: Stats component is missing for sstable /usr/local/var/lib/cassandra/data/system/prepared_statements-18a9c2576a0c3841ba718cd529849fef/nb-346-big
at org.apache.cassandra.io.sstable.format.SSTableReader.open(SSTableReader.java:461)
at org.apache.cassandra.io.sstable.format.SSTableReader.open(SSTableReader.java:372)
at org.apache.cassandra.io.sstable.format.SSTableReader$2.run(SSTableReader.java:540)
at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:515)
at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264)
at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1128)
at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:628)
at io.netty.util.concurrent.FastThreadLocalRunnable.run(FastThreadLocalRunnable.java:30)
at java.base/java.lang.Thread.run(Thread.java:834)
WARN [main] 2022-01-19 17:12:07,595 CommitLogReplayer.java:305 - Origin of 6 sstables is unknown or doesn't match the local node; commitLogIntervals for them were ignored
WARN [main] 2022-01-19 17:12:07,598 CommitLogReplayer.java:305 - Origin of 4 sstables is unknown or doesn't match the local node; commitLogIntervals for them were ignored
WARN [main] 2022-01-19 17:12:07,599 CommitLogReplayer.java:305 - Origin of 4 sstables is unknown or doesn't match the local node; commitLogIntervals for them were ignored
WARN [main] 2022-01-19 17:12:07,600 CommitLogReplayer.java:305 - Origin of 6 sstables is unknown or doesn't match the local node; commitLogIntervals for them were ignored
WARN [main] 2022-01-19 17:12:07,601 CommitLogReplayer.java:305 - Origin of 3 sstables is unknown or doesn't match the local node; commitLogIntervals for them were ignored
WARN [main] 2022-01-19 17:12:07,602 CommitLogReplayer.java:305 - Origin of 2 sstables is unknown or doesn't match the local node; commitLogIntervals for them were ignored
WARN [main] 2022-01-19 17:12:07,602 CommitLogReplayer.java:305 - Origin of 1 sstables is unknown or doesn't match the local node; commitLogIntervals for them were ignored
WARN [main] 2022-01-19 17:12:07,603 CommitLogReplayer.java:305 - Origin of 3 sstables is unknown or doesn't match the local node; commitLogIntervals for them were ignored
WARN [main] 2022-01-19 17:12:07,604 CommitLogReplayer.java:305 - Origin of 1 sstables is unknown or doesn't match the local node; commitLogIntervals for them were ignored
WARN [main] 2022-01-19 17:12:07,604 CommitLogReplayer.java:305 - Origin of 1 sstables is unknown or doesn't match the local node; commitLogIntervals for them were ignored
WARN [main] 2022-01-19 17:12:07,604 CommitLogReplayer.java:305 - Origin of 3 sstables is unknown or doesn't match the local node; commitLogIntervals for them were ignored
WARN [main] 2022-01-19 17:12:07,606 CommitLogReplayer.java:305 - Origin of 677 sstables is unknown or doesn't match the local node; commitLogIntervals for them were ignored
WARN [main] 2022-01-19 17:12:07,607 CommitLogReplayer.java:305 - Origin of 2 sstables is unknown or doesn't match the local node; commitLogIntervals for them were ignored
WARN [main] 2022-01-19 17:12:07,607 CommitLogReplayer.java:305 - Origin of 6 sstables is unknown or doesn't match the local node; commitLogIntervals for them were ignored
WARN [main] 2022-01-19 17:12:07,608 CommitLogReplayer.java:305 - Origin of 1 sstables is unknown or doesn't match the local node; commitLogIntervals for them were ignored
WARN [main] 2022-01-19 17:12:07,608 CommitLogReplayer.java:305 - Origin of 2 sstables is unknown or doesn't match the local node; commitLogIntervals for them were ignored
WARN [MemtableFlushWriter:1] 2022-01-19 17:12:08,879 NativeLibrary.java:318 - open(/usr/local/var/lib/cassandra/data/system_schema/columns-24101c25a2ae3af787c1b40ee1aca33f, O_RDONLY) failed, errno (24).
WARN [MemtableFlushWriter:2] 2022-01-19 17:12:08,879 NativeLibrary.java:318 - open(/usr/local/var/lib/cassandra/data/system_schema/types-5a8b1ca866023f77a0459273d308917a, O_RDONLY) failed, errno (24).
ERROR [MemtableFlushWriter:1] 2022-01-19 17:12:08,885 LogReplica.java:108 - Failed to sync file /usr/local/var/lib/cassandra/data/system_schema/columns-24101c25a2ae3af787c1b40ee1aca33f/nb_txn_flush_fd43a060-798d-11ec-901b-455a45092af6.log
org.apache.cassandra.io.FSWriteError: java.nio.file.FileSystemException: /usr/local/var/lib/cassandra/data/system_schema/columns-24101c25a2ae3af787c1b40ee1aca33f/nb_txn_flush_fd43a060-798d-11ec-901b-455a45092af6.log: Too many open files
at org.apache.cassandra.io.util.FileUtils.write(FileUtils.java:867)
at org.apache.cassandra.io.util.FileUtils.appendAndSync(FileUtils.java:810)
at org.apache.cassandra.db.lifecycle.LogReplica.append(LogReplica.java:104)
at org.apache.cassandra.db.lifecycle.LogReplicaSet.lambda$null$5(LogReplicaSet.java:225)
at org.apache.cassandra.utils.Throwables.perform(Throwables.java:138)
at org.apache.cassandra.utils.Throwables.perform(Throwables.java:128)
at org.apache.cassandra.db.lifecycle.LogReplicaSet.append(LogReplicaSet.java:225)
at org.apache.cassandra.db.lifecycle.LogFile.addRecord(LogFile.java:363)
at org.apache.cassandra.db.lifecycle.LogFile.abort(LogFile.java:282)
at org.apache.cassandra.utils.Throwables.perform(Throwables.java:138)
at org.apache.cassandra.utils.Throwables.perform(Throwables.java:128)
at org.apache.cassandra.utils.Throwables.perform(Throwables.java:123)
at org.apache.cassandra.db.lifecycle.LogTransaction.doAbort(LogTransaction.java:466)
at org.apache.cassandra.utils.concurrent.Transactional$AbstractTransactional.abort(Transactional.java:141)
at org.apache.cassandra.db.lifecycle.LifecycleTransaction.doAbort(LifecycleTransaction.java:250)
at org.apache.cassandra.utils.concurrent.Transactional$AbstractTransactional.abort(Transactional.java:141)
at org.apache.cassandra.db.ColumnFamilyStore$Flush.flushMemtable(ColumnFamilyStore.java:1140)
at org.apache.cassandra.db.ColumnFamilyStore$Flush.run(ColumnFamilyStore.java:1075)
at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1128)
at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:628)
at io.netty.util.concurrent.FastThreadLocalRunnable.run(FastThreadLocalRunnable.java:30)
at java.base/java.lang.Thread.run(Thread.java:834)
Caused by: java.nio.file.FileSystemException: /usr/local/var/lib/cassandra/data/system_schema/columns-24101c25a2ae3af787c1b40ee1aca33f/nb_txn_flush_fd43a060-798d-11ec-901b-455a45092af6.log: Too many open files
at java.base/sun.nio.fs.UnixException.translateToIOException(UnixException.java:100)
at java.base/sun.nio.fs.UnixException.rethrowAsIOException(UnixException.java:111)
at java.base/sun.nio.fs.UnixException.rethrowAsIOException(UnixException.java:116)
at java.base/sun.nio.fs.UnixFileSystemProvider.newFileChannel(UnixFileSystemProvider.java:182)
at org.apache.cassandra.io.util.FileUtils.write(FileUtils.java:844)
... 21 common frames omitted
ERROR [MemtableFlushWriter:1] 2022-01-19 17:12:08,887 DefaultFSErrorHandler.java:104 - Exiting forcefully due to file system exception on startup, disk failure policy "stop"
org.apache.cassandra.io.FSWriteError: java.nio.file.FileSystemException: /usr/local/var/lib/cassandra/data/system_schema/columns-24101c25a2ae3af787c1b40ee1aca33f/nb_txn_flush_fd43a060-798d-11ec-901b-455a45092af6.log: Too many open files
at org.apache.cassandra.io.util.FileUtils.write(FileUtils.java:867)
at org.apache.cassandra.io.util.FileUtils.appendAndSync(FileUtils.java:810)
at org.apache.cassandra.db.lifecycle.LogReplica.append(LogReplica.java:104)
at org.apache.cassandra.db.lifecycle.LogReplicaSet.lambda$null$5(LogReplicaSet.java:225)
at org.apache.cassandra.utils.Throwables.perform(Throwables.java:138)
at org.apache.cassandra.utils.Throwables.perform(Throwables.java:128)
at org.apache.cassandra.db.lifecycle.LogReplicaSet.append(LogReplicaSet.java:225)
at org.apache.cassandra.db.lifecycle.LogFile.addRecord(LogFile.java:363)
at org.apache.cassandra.db.lifecycle.LogFile.abort(LogFile.java:282)
at org.apache.cassandra.utils.Throwables.perform(Throwables.java:138)
at org.apache.cassandra.utils.Throwables.perform(Throwables.java:128)
at org.apache.cassandra.utils.Throwables.perform(Throwables.java:123)
at org.apache.cassandra.db.lifecycle.LogTransaction.doAbort(LogTransaction.java:466)
at org.apache.cassandra.utils.concurrent.Transactional$AbstractTransactional.abort(Transactional.java:141)
at org.apache.cassandra.db.lifecycle.LifecycleTransaction.doAbort(LifecycleTransaction.java:250)
at org.apache.cassandra.utils.concurrent.Transactional$AbstractTransactional.abort(Transactional.java:141)
at org.apache.cassandra.db.ColumnFamilyStore$Flush.flushMemtable(ColumnFamilyStore.java:1140)
at org.apache.cassandra.db.ColumnFamilyStore$Flush.run(ColumnFamilyStore.java:1075)
at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1128)
at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:628)
at io.netty.util.concurrent.FastThreadLocalRunnable.run(FastThreadLocalRunnable.java:30)
at java.base/java.lang.Thread.run(Thread.java:834)
Caused by: java.nio.file.FileSystemException: /usr/local/var/lib/cassandra/data/system_schema/columns-24101c25a2ae3af787c1b40ee1aca33f/nb_txn_flush_fd43a060-798d-11ec-901b-455a45092af6.log: Too many open files
at java.base/sun.nio.fs.UnixException.translateToIOException(UnixException.java:100)
at java.base/sun.nio.fs.UnixException.rethrowAsIOException(UnixException.java:111)
at java.base/sun.nio.fs.UnixException.rethrowAsIOException(UnixException.java:116)
at java.base/sun.nio.fs.UnixFileSystemProvider.newFileChannel(UnixFileSystemProvider.java:182)
at org.apache.cassandra.io.util.FileUtils.write(FileUtils.java:844)
... 21 common frames omitted
ERROR [MemtableFlushWriter:2] 2022-01-19 17:12:08,888 LogTransaction.java:304 - [nb_txn_flush_fd43a061-798d-11ec-901b-455a45092af6.log in /usr/local/var/lib/cassandra/data/system_schema/types-5a8b1ca866023f77a0459273d308917a] was not completed, trying to abort it now
它可以使用命令"brew services start cassandra"启动，或者至少我在使用"brew services…"启动后看到了成功消息
但是，当使用cqlsh连接它时，我看到以下消息：
bin % cqlsh
/usr/local/Cellar/cassandra/4.0.1/libexec/bin/cqlsh.py:460: DeprecationWarning: Legacy execution parameters will be removed in 4.0. Consider using execution profiles.
Connection error: ('Unable to connect to any servers', {'127.0.0.1:9042': ConnectionRefusedError(61, "Tried connecting to [('127.0.0.1', 9042)]. Last error: Connection refused")})
我花了将近两天的时间使用Java 8，然后使用Java 11cassandra@3但什么都不起作用。
知道吗？
错误在这里：Too many open files<-您需要增加打开文件数量的限制。这可以通过ulimit命令完成，并使其永久化，如本答案中所述。