Cassandra版本：2.2
操作系统：CentOS 6.4
我只需按照文档here运行
即可[user@centOS conf]$ sudo yum install dsc22
[user@centOS conf]$ sudo service cassandra start
Starting Cassandra: OK
但我通过＆＃34; ps＆＃34;检查过程状态。并且没有cassandra进程运行，因为启动过程被神秘地杀死了。 （我在我的Mac上运行同样的东西，一切正常，在CentOS上直接键入＆＃39; cassandra＆＃39;在命令行中也可以。@ update：我试过了＃yum; yum install dsc20＆＃34; and working很好......）
in＆＃39; /var/log/cassandra/cassandra.log'如下所示，没有错误消息，没有警告。有人可以对此有任何想法吗？非常感谢。
tail: /var/log/cassandra/cassandra.log: file truncated
CompilerOracle: inline org/apache/cassandra/db/AbstractNativeCell.compareTo (Lorg/apache/cassandra/db/composites/Composite;)I
CompilerOracle: inline org/apache/cassandra/db/composites/AbstractSimpleCellNameType.compareUnsigned (Lorg/apache/cassandra/db/composites/Composite;Lorg/apache/cassandra/db/composites/Composite;)I
CompilerOracle: inline org/apache/cassandra/io/util/Memory.checkBounds (JJ)V
CompilerOracle: inline org/apache/cassandra/io/util/SafeMemory.checkBounds (JJ)V
CompilerOracle: inline org/apache/cassandra/utils/AsymmetricOrdering.selectBoundary (Lorg/apache/cassandra/utils/AsymmetricOrdering/Op;II)I
CompilerOracle: inline org/apache/cassandra/utils/AsymmetricOrdering.strictnessOfLessThan (Lorg/apache/cassandra/utils/AsymmetricOrdering/Op;)I
CompilerOracle: inline org/apache/cassandra/utils/ByteBufferUtil.compare (Ljava/nio/ByteBuffer;[B)I
CompilerOracle: inline org/apache/cassandra/utils/ByteBufferUtil.compare ([BLjava/nio/ByteBuffer;)I
CompilerOracle: inline org/apache/cassandra/utils/ByteBufferUtil.compareUnsigned (Ljava/nio/ByteBuffer;Ljava/nio/ByteBuffer;)I
CompilerOracle: inline org/apache/cassandra/utils/FastByteOperations$UnsafeOperations.compareTo (Ljava/lang/Object;JILjava/lang/Object;JI)I
CompilerOracle: inline org/apache/cassandra/utils/FastByteOperations$UnsafeOperations.compareTo (Ljava/lang/Object;JILjava/nio/ByteBuffer;)I
CompilerOracle: inline org/apache/cassandra/utils/FastByteOperations$UnsafeOperations.compareTo (Ljava/nio/ByteBuffer;Ljava/nio/ByteBuffer;)I
INFO 23:47:52 Loading settings from file:/etc/cassandra/default.conf/cassandra.yaml
INFO 23:47:52 Node configuration:[authenticator=AllowAllAuthenticator; authorizer=AllowAllAuthorizer; auto_snapshot=true; batch_size_fail_threshold_in_kb=50; batch_size_warn_threshold_in_kb=5; batchlog_replay_throttle_in_kb=1024; cas_contention_timeout_in_ms=1000; client_encryption_options=<REDACTED>; cluster_name=Test Cluster; column_index_size_in_kb=64; commit_failure_policy=stop; commitlog_directory=/data/cassandra/commitlog; commitlog_segment_size_in_mb=32; commitlog_sync=periodic; commitlog_sync_period_in_ms=10000; compaction_large_partition_warning_threshold_mb=100; compaction_throughput_mb_per_sec=16; concurrent_counter_writes=32; concurrent_reads=32; concurrent_writes=32; counter_cache_save_period=7200; counter_cache_size_in_mb=null; counter_write_request_timeout_in_ms=5000; cross_node_timeout=false; data_file_directories=[/data/cassandra/data]; disk_failure_policy=stop; dynamic_snitch_badness_threshold=0.1; dynamic_snitch_reset_interval_in_ms=600000; dynamic_snitch_update_interval_in_ms=100; enable_user_defined_functions=false; endpoint_snitch=SimpleSnitch; hinted_handoff_enabled=true; hinted_handoff_throttle_in_kb=1024; incremental_backups=false; index_summary_capacity_in_mb=null; index_summary_resize_interval_in_minutes=60; inter_dc_tcp_nodelay=false; internode_compression=all; key_cache_save_period=14400; key_cache_size_in_mb=null; listen_address=localhost; max_hint_window_in_ms=10800000; max_hints_delivery_threads=2; memtable_allocation_type=heap_buffers; native_transport_port=9042; num_tokens=256; partitioner=org.apache.cassandra.dht.Murmur3Partitioner; permissions_validity_in_ms=2000; range_request_timeout_in_ms=10000; read_request_timeout_in_ms=5000; request_scheduler=org.apache.cassandra.scheduler.NoScheduler; request_timeout_in_ms=10000; role_manager=CassandraRoleManager; roles_validity_in_ms=2000; row_cache_save_period=0; row_cache_size_in_mb=0; rpc_address=localhost; rpc_keepalive=true; rpc_port=9160; rpc_server_type=sync; saved_caches_directory=/data/cassandra/saved_caches; seed_provider=[{class_name=org.apache.cassandra.locator.SimpleSeedProvider, parameters=[{seeds=127.0.0.1}]}]; server_encryption_options=<REDACTED>; snapshot_before_compaction=false; ssl_storage_port=7001; sstable_preemptive_open_interval_in_mb=50; start_native_transport=true; start_rpc=false; storage_port=7000; thrift_framed_transport_size_in_mb=15; tombstone_failure_threshold=100000; tombstone_warn_threshold=1000; tracetype_query_ttl=86400; tracetype_repair_ttl=604800; trickle_fsync=false; trickle_fsync_interval_in_kb=10240; truncate_request_timeout_in_ms=60000; windows_timer_interval=1; write_request_timeout_in_ms=2000]
INFO 23:47:52 DiskAccessMode 'auto' determined to be mmap, indexAccessMode is mmap
INFO 23:47:52 Global memtable on-heap threshold is enabled at 121MB
INFO 23:47:52 Global memtable off-heap threshold is enabled at 121MB
INFO 23:47:52 Loading settings from file:/etc/cassandra/default.conf/cassandra.yaml
INFO 23:47:52 Node configuration:[authenticator=AllowAllAuthenticator; authorizer=AllowAllAuthorizer; auto_snapshot=true; batch_size_fail_threshold_in_kb=50; batch_size_warn_threshold_in_kb=5; batchlog_replay_throttle_in_kb=1024; cas_contention_timeout_in_ms=1000; client_encryption_options=<REDACTED>; cluster_name=Test Cluster; column_index_size_in_kb=64; commit_failure_policy=stop; commitlog_directory=/data/cassandra/commitlog; commitlog_segment_size_in_mb=32; commitlog_sync=periodic; commitlog_sync_period_in_ms=10000; compaction_large_partition_warning_threshold_mb=100; compaction_throughput_mb_per_sec=16; concurrent_counter_writes=32; concurrent_reads=32; concurrent_writes=32; counter_cache_save_period=7200; counter_cache_size_in_mb=null; counter_write_request_timeout_in_ms=5000; cross_node_timeout=false; data_file_directories=[/data/cassandra/data]; disk_failure_policy=stop; dynamic_snitch_badness_threshold=0.1; dynamic_snitch_reset_interval_in_ms=600000; dynamic_snitch_update_interval_in_ms=100; enable_user_defined_functions=false; endpoint_snitch=SimpleSnitch; hinted_handoff_enabled=true; hinted_handoff_throttle_in_kb=1024; incremental_backups=false; index_summary_capacity_in_mb=null; index_summary_resize_interval_in_minutes=60; inter_dc_tcp_nodelay=false; internode_compression=all; key_cache_save_period=14400; key_cache_size_in_mb=null; listen_address=localhost; max_hint_window_in_ms=10800000; max_hints_delivery_threads=2; memtable_allocation_type=heap_buffers; native_transport_port=9042; num_tokens=256; partitioner=org.apache.cassandra.dht.Murmur3Partitioner; permissions_validity_in_ms=2000; range_request_timeout_in_ms=10000; read_request_timeout_in_ms=5000; request_scheduler=org.apache.cassandra.scheduler.NoScheduler; request_timeout_in_ms=10000; role_manager=CassandraRoleManager; roles_validity_in_ms=2000; row_cache_save_period=0; row_cache_size_in_mb=0; rpc_address=localhost; rpc_keepalive=true; rpc_port=9160; rpc_server_type=sync; saved_caches_directory=/data/cassandra/saved_caches; seed_provider=[{class_name=org.apache.cassandra.locator.SimpleSeedProvider, parameters=[{seeds=127.0.0.1}]}]; server_encryption_options=<REDACTED>; snapshot_before_compaction=false; ssl_storage_port=7001; sstable_preemptive_open_interval_in_mb=50; start_native_transport=true; start_rpc=false; storage_port=7000; thrift_framed_transport_size_in_mb=15; tombstone_failure_threshold=100000; tombstone_warn_threshold=1000; tracetype_query_ttl=86400; tracetype_repair_ttl=604800; trickle_fsync=false; trickle_fsync_interval_in_kb=10240; truncate_request_timeout_in_ms=60000; windows_timer_interval=1; write_request_timeout_in_ms=2000]
INFO 23:47:52 Hostname: centos-vm.com
INFO 23:47:52 JVM vendor/version: OpenJDK 64-Bit Server VM/1.7.0_45
INFO 23:47:52 Heap size: 509214720/509214720
INFO 23:47:52 Code Cache Non-heap memory: init = 2555904(2496K) used = 636288(621K) committed = 2555904(2496K) max = 50331648(49152K)
INFO 23:47:52 Par Eden Space Heap memory: init = 104071168(101632K) used = 50207568(49030K) committed = 104071168(101632K) max = 104071168(101632K)
INFO 23:47:52 Par Survivor Space Heap memory: init = 12976128(12672K) used = 0(0K) committed = 12976128(12672K) max = 12976128(12672K)
INFO 23:47:52 CMS Old Gen Heap memory: init = 392167424(382976K) used = 0(0K) committed = 392167424(382976K) max = 392167424(382976K)
INFO 23:47:52 CMS Perm Gen Non-heap memory: init = 21757952(21248K) used = 12843096(12542K) committed = 21757952(21248K) max = 174063616(169984K)
INFO 23:47:52 Classpath: /etc/cassandra/conf:/usr/share/cassandra/lib/airline-0.6.jar:/usr/share/cassandra/lib/antlr-runtime-3.5.2.jar:/usr/share/cassandra/lib/cassandra-driver-core-2.2.0-rc2-SNAPSHOT-20150617-shaded.jar:/usr/share/cassandra/lib/commons-cli-1.1.jar:/usr/share/cassandra/lib/commons-codec-1.2.jar:/usr/share/cassandra/lib/commons-lang3-3.1.jar:/usr/share/cassandra/lib/commons-math3-3.2.jar:/usr/share/cassandra/lib/compress-lzf-0.8.4.jar:/usr/share/cassandra/lib/concurrentlinkedhashmap-lru-1.4.jar:/usr/share/cassandra/lib/crc32ex-0.1.1.jar:/usr/share/cassandra/lib/disruptor-3.0.1.jar:/usr/share/cassandra/lib/ecj-4.4.2.jar:/usr/share/cassandra/lib/guava-16.0.jar:/usr/share/cassandra/lib/high-scale-lib-1.0.6.jar:/usr/share/cassandra/lib/jackson-core-asl-1.9.2.jar:/usr/share/cassandra/lib/jackson-mapper-asl-1.9.2.jar:/usr/share/cassandra/lib/jamm-0.3.0.jar:/usr/share/cassandra/lib/javax.inject.jar:/usr/share/cassandra/lib/jbcrypt-0.3m.jar:/usr/share/cassandra/lib/jcl-over-slf4j-1.7.7.jar:/usr/share/cassandra/lib/jna-4.0.0.jar:/usr/share/cassandra/lib/joda-time-2.4.jar:/usr/share/cassandra/lib/json-simple-1.1.jar:/usr/share/cassandra/lib/libthrift-0.9.2.jar:/usr/share/cassandra/lib/log4j-over-slf4j-1.7.7.jar:/usr/share/cassandra/lib/logback-classic-1.1.3.jar:/usr/share/cassandra/lib/logback-core-1.1.3.jar:/usr/share/cassandra/lib/lz4-1.3.0.jar:/usr/share/cassandra/lib/metrics-core-3.1.0.jar:/usr/share/cassandra/lib/metrics-logback-3.1.0.jar:/usr/share/cassandra/lib/netty-all-4.0.23.Final.jar:/usr/share/cassandra/lib/ohc-core-0.3.4.jar:/usr/share/cassandra/lib/ohc-core-j8-0.3.4.jar:/usr/share/cassandra/lib/reporter-config3-3.0.0.jar:/usr/share/cassandra/lib/reporter-config-base-3.0.0.jar:/usr/share/cassandra/lib/sigar-1.6.4.jar:/usr/share/cassandra/lib/slf4j-api-1.7.7.jar:/usr/share/cassandra/lib/snakeyaml-1.11.jar:/usr/share/cassandra/lib/snappy-java-1.0.4.1.jar:/usr/share/cassandra/lib/snappy-java-1.1.1.7.jar:/usr/share/cassandra/lib/ST4-4.0.8.jar:/usr/share/cassandra/lib/stream-2.5.2.jar:/usr/share/cassandra/lib/super-csv-2.1.0.jar:/usr/share/cassandra/lib/thrift-server-0.3.7.jar:/usr/share/cassandra/apache-cassandra-2.2.0.jar:/usr/share/cassandra/apache-cassandra-thrift-2.2.0.jar:/usr/share/cassandra/stress.jar::/usr/share/cassandra/lib/jamm-0.3.0.jar
答案 0 :(得分：1)
结果是内存问题。由于启动过程被神秘地杀死，事实是被内核杀死。
我在具有1G内存的虚拟机上运行它。
当我跑＆＃34; ps -ef | grep cassandra ＆＃34;然后＆＃34; dmesg | egrep -i -B100＆＃39; cassandra-pid＆＃39; ＆＃34;，我得到了
Out of memory: Kill process 9450 (java) score 218 or sacrifice child
Killed process 9450, UID 0, (java) total-vm:1155600kB, anon-rss:797292kB, file-rss:100956kB
因此证实它是一个记忆问题。然后我只修改了Cassandra的内存分配，一切正常。
在 cassandra-env.sh
中变化：
half_system_memory_in_mb=`expr $system_memory_in_mb / 2`
quarter_system_memory_in_mb=`expr $half_system_memory_in_mb / 2`
是：
half_system_memory_in_mb="300"
quarter_system_memory_in_mb="300"
答案 1 :(得分：0)
您可以通过在提示符下键入命令netstat -tunlp进行设置，在那里您将找到端口7199的进程ID。如果你想停下来，你必须杀死它。
netstat -tunlp告诉我们端口明智的进程ID。