我最近在一个三节点集群上安装了 DSE 4.8.9。集群运行良好并且很健康。我们已经开始从 1400 万条记录中删除 400 万条记录，因此创建了相当多的墓碑。重新启动其中一个节点（10.0.106.7）后，该节点不再公开端口 9042，因此我无法通过 cqlsh 连接。端口 7199 已暴露。
机器设置：150 GB 数据驱动器，10 GB 单独磁盘上的提交日志，32 GB RAM，8 核
- cassandra.yaml：listen_ 和 rpc_address 设置为相同的 IP。
- cassandra-en.sh：HEAP 设置为 22 GB（机器有 32 GB RAM）
我在 system.log 中观察到相当高的 GC 活动。您可以在 pastebin 上看到system.log
这似乎导致 c* 不再暴露端口 9042。
我试图让机器在这种状态下运行几个小时。系统日志保持活动状态，但 cqlsh 无法连接。我正在接收
连接错误：（'无法连接到任何服务器'，{'10.0.106.7'：错误（111，“尝试连接到[（'10.0.106.7'，9042）]。最后一个错误：连接被拒绝”）}）
从同一主机连接到 cqlsh 时。
这会导致问题，即 opscenter 无法连接到此实例。
有什么建议我还能做些什么来让这个节点上的 cqlsh 回来？
更新：节点工具状态的输出：
UN 10.0.106.5 80.46 GB 1 ? ec3f6f84-41bc-4ae5-85a1-59df023308a7 机架1 UN 10.0.106.6 67.02 GB 1 ? 47388e88-6079-4926-95a6-f4e7627a2037 机架1 UN 10.0.106.7 87.47 GB 1 ? 651c6633-0948-499c-8f7a-98041c87cfb2 机架1
更新2：
网络统计-an | grep 9042 什么都不返回
摘自 output.log
INFO 20:37:37,178 从文件加载设置：/etc/dse/cassandra/cassandra.yaml
INFO 20:37:37,287 节点配置：[authenticator=AllowAllAuthenticator; 授权人=允许所有授权人；自动快照=真；batch_size_warn_threshold_in_kb=64；batchlog_replay_throttle_in_kb=1024；cas_contention_timeout_in_ms=1000；client_encryption_options=; cluster_name=Gjallarhorn-公共集群；column_index_size_in_kb=64；commit_failure_policy=停止；commitlog_directory=/srv/commitLog; commitlog_segment_size_in_mb=32；commitlog_sync=定期；commitlog_sync_period_in_ms=10000; commitlog_total_space_in_mb=8192；compaction_large_partition_warning_threshold_mb=100；compaction_throughput_mb_per_sec=16；并发计数器写入=32；并发读取=32；并发写入=32；counter_cache_save_period=7200; counter_cache_size_in_mb=null；counter_write_request_timeout_in_ms=5000；交叉节点超时=假；data_file_directories=[/srv/cassandra/data]; disk_failure_policy=停止；dynamic_snitch_badness_threshold=0.1；dynamic_snitch_reset_interval_in_ms=600000；dynamic_snitch_update_interval_in_ms=100；endpoint_snitch=com.datastax.bdp.snitch.DseSimpleSnitch；提示切换启用=真；提示_handoff_throttle_in_kb=1024；增量备份=假；index_summary_capacity_in_mb=null；index_summary_resize_interval_in_minutes=60；初始令牌=3074457345618258602；inter_dc_tcp_nodelay=false；节点间压缩=全部；key_cache_save_period=14400; key_cache_size_in_mb=null；听地址=10.0.106.7；max_hint_window_in_ms=10800000；max_hints_delivery_threads=2；memtable_allocation_type=heap_buffers; native_transport_port=9042; num_tokens=1; 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；row_cache_save_period=0；row_cache_size_in_mb=0；rpc_address=10.0.106.7；rpc_keepalive=真；rpc_port=9160；rpc_server_type=同步；saved_caches_directory=/srv/cassandra/saved_caches; seed_provider=[{class_name=org.apache.cassandra.locator.SimpleSeedProvider，参数=[{seeds=10.0.106.5,10.0.106.6,10.0.106.7}]}]；server_encryption_options=; snapshot_before_compaction=false；ssl_storage_port=7001；sstable_preemptive_open_interval_in_mb=50；start_native_transport=真；start_rpc=真；存储端口=7000；thrift_framed_transport_size_in_mb=15；tombstone_failure_threshold=100000；tombstone_warn_threshold=1000；涓流_fsync=假；涓流_fsync_interval_in_kb=10240；truncate_request_timeout_in_ms=60000; unlogged_batch_across_partitions_warn_threshold=10；write_request_timeout_in_ms=2000]
INFO 20:37:37,345 DiskAccessMode 'auto' 确定为 mmap，indexAccessMode 为 mmap
INFO 20:37:37,402 全局 memtable on-heap 阈值在 5632MB 处启用
INFO 20:37:37,402 全局 memtable 堆外阈值在 5632MB 处启用
INFO 20:37:37,406 检测到的搜索服务已启用，将我的工作负载设置为搜索
INFO 20:37:37,407 检测到的搜索服务已启用，将我的 DC 设置为 Solr
INFO 20:37:37,408 使用工作负载搜索初始化 DseDelegateSnitch，委托给 com.datastax.bdp.snitch.DseSimpleSnitch
ps -ef|grep 卡桑德拉
/usr/lib/jvm/java-8-oracle/jre//bin/java -Ddse.system_memory_in_mb=29450 -Dcassandra.config.loader=com.datastax.bdp.config.DseConfigurationLoader -Ddse.system_memory_in_mb=29450 -Dcassandra。 config.loader=com.datastax.bdp.config.DseConfigurationLoader -ea -javaagent:/usr/share/dse/cassandra/lib/jamm-0.3.0.jar -XX:+UseThreadPriorities -XX:ThreadPriorityPolicy=42 -Xms22G - Xmx22G -XX:+HeapDumpOnOutOfMemoryError -Xss256k -XX:+AlwaysPreTouch -XX:-UseBiasedLocking -XX:StringTableSize=1000003 -XX:+UseTLAB -XX:+ResizeTLAB -XX:CompileCommandFile=/etc/dse/cassandra/hotspot_compiler -XX: +UseG1GC -XX:G1RSetUpdatingPauseTimePercent=5 -XX:MaxGCPauseMillis=1000 -Djava.net.preferIPv4Stack=true -Dcassandra.jmx.local.port=7199 -XX:+DisableExplicitGC -Dlogback.configurationFile=logback.xml -Dcassandra.logdir= /var/log/cassandra -Dcassandra.storagedir= -Dcassandra-pidfile=/var/run/dse/dse.pid -cp :/usr/share/dse/dse-core-4.8.9.jar:/usr/share/dse/dse-hadoop-4.8。 9.jar:/usr/share/dse/dse-hive-4.8.9.jar:/usr/share/dse/dse-search-4.8.9.jar:/usr/share/dse/dse-spark-4.8 .9.jar:/usr/share/dse/dse-sqoop-4.8.9.jar:/usr/share/dse/common/HdrHistogram-1.2.1.1.jar:/usr/share/dse/common/antlr- 2.7.7.jar:/usr/share/dse/common/antlr-3.2.jar:/usr/share/dse/common/antlr-runtime-3.2.jar:/usr/share/dse/common/aopalliance-1.0 .jar:/usr/share/dse/common/api-asn1-api-1.0.0-M33.jar:/usr/share/dse/common/api-asn1-ber-1.0.0-M33.jar:/ usr/share/dse/common/api-i18n-1.0.0-M33.jar:/usr/share/dse/common/api-ldap-client-api-1.0.0-M33.jar:/usr/share/ dse/common/api-ldap-codec-core-1.0.0-M33.jar:/usr/share/dse/common/api-ldap-codec-standalone-1.0.0-M33.jar:/usr/share/ dse/common/api-ldap-extras-aci-1.0.0-M33.jar：/usr/share/dse/common/api-ldap-extras-codec-1.0.0-M33.jar:/usr/share/dse/common/api-ldap-extras-codec-api-1.0.0-M33。 jar:/usr/share/dse/common/api-ldap-model-1.0.0-M33.jar:/usr/share/dse/common/api-ldap-net-mina-1.0.0-M33.jar: /usr/share/dse/common/api-util-1.0.0-M33.jar:/usr/share/dse/common/asm-5.0.3.jar:/usr/share/dse/common/commons-beanutils -1.9.2.jar:/usr/share/dse/common/commons-codec-1.9.jar:/usr/share/dse/common/commons-collections-3.2.2.jar:/usr/share/dse/ common/commons-compiler-2.6.1.jar:/usr/share/dse/common/commons-configuration-1.6.jar:/usr/share/dse/common/commons-digester-1.8.jar:/usr/share /dse/common/commons-io-2.4.jar:/usr/share/dse/common/commons-lang-2.6.jar:/usr/share/dse/common/commons-logging-1.1.1.jar:/ usr/share/dse/common/commons-pool-1.6.jar:/usr/share/dse/common/guava-16.0.1.jar:/usr/share/dse/common/guice-3.0.jar:/usr/share/dse/common/guice-multibindings-3.0.jar:/usr/share/dse/common/jackson-annotations-2.2.2.jar:/usr/share/dse/common/jackson-core-2.2 .2.jar:/usr/share/dse/common/jackson-databind-2.2.2.jar:/usr/share/dse/common/janino-2.6.1.jar:/usr/share/dse/common/ java-uuid-generator-3.1.3.jar:/usr/share/dse/common/javassist-3.18.2-GA.jar:/usr/share/dse/common/javax.inject-1.jar:/usr /share/dse/common/jbcrypt-0.4d.jar:/usr/share/dse/common/jcl-over-slf4j-1.7.10.jar:/usr/share/dse/common/jline-1.0.jar: /usr/share/dse/common/journalio-1.4.2.jar:/usr/share/dse/common/jsr305-2.0.1.jar:/usr/share/dse/common/kmip-1.7.1e.jar :/usr/share/dse/common/log4j-1.2.13.jar:/usr/share/dse/common/mina-core-2.0.10.jar:/usr/share/dse/common/org.apache。 servicemix.bundles.antlr-2.7.7_5.jar:/usr/share/dse/common/reflections-0.9.10.jar:/usr/share/dse/common/slf4j-api-1.7.10.jar:/usr/share/dse/common/stringtemplate-3.2.jar:/usr/share/dse/common/validation-api-1.1.0.Final.jar:/etc/dse:/etc/dse/cassandra:/usr /share/dse/cassandra/tools/lib/stress.jar:/usr/share/dse/cassandra/lib/ST4-4.0.8.jar:/usr/share/dse/cassandra/lib/antlr-3.5.2 .jar:/usr/share/dse/cassandra/lib/antlr-runtime-3.5.2.jar:/usr/share/dse/cassandra/lib/cassandra-all-2.1.15.1403.jar:/usr/share/ dse/cassandra/lib/cassandra-clientutil-2.1.15.1403.jar:/usr/share/dse/cassandra/lib/cassandra-thrift-2.1.15.1403.jar:/usr/share/dse/cassandra/lib/commons- cli-1.1.jar:/usr/share/dse/cassandra/lib/commons-codec-1.9.jar:/usr/share/dse/cassandra/lib/commons-lang-2.6.jar:/usr/share/dse /cassandra/lib/commons-lang3-3.1.jar:/usr/share/usr/share/dse/cassandra/tools/lib/stress.jar:/usr/share/dse/cassandra/lib/ST4-4.0.8.jar:/usr/share/dse/cassandra/lib/antlr-3.5 .2.jar:/usr/share/dse/cassandra/lib/antlr-runtime-3.5.2.jar:/usr/share/dse/cassandra/lib/cassandra-all-2.1.15.1403.jar:/usr/共享/dse/cassandra/lib/cassandra-clientutil-2.1.15.1403.jar:/usr/share/dse/cassandra/lib/cassandra-thrift-2.1.15.1403.jar:/usr/share/dse/cassandra/lib/ commons-cli-1.1.jar:/usr/share/dse/cassandra/lib/commons-codec-1.9.jar:/usr/share/dse/cassandra/lib/commons-lang-2.6.jar:/usr/share /dse/cassandra/lib/commons-lang3-3.1.jar:/usr/share/usr/share/dse/cassandra/tools/lib/stress.jar:/usr/share/dse/cassandra/lib/ST4-4.0.8.jar:/usr/share/dse/cassandra/lib/antlr-3.5 .2.jar:/usr/share/dse/cassandra/lib/antlr-runtime-3.5.2.jar:/usr/share/dse/cassandra/lib/cassandra-all-2.1.15.1403.jar:/usr/共享/dse/cassandra/lib/cassandra-clientutil-2.1.15.1403.jar:/usr/share/dse/cassandra/lib/cassandra-thrift-2.1.15.1403.jar:/usr/share/dse/cassandra/lib/ commons-cli-1.1.jar:/usr/share/dse/cassandra/lib/commons-codec-1.9.jar:/usr/share/dse/cassandra/lib/commons-lang-2.6.jar:/usr/share /dse/cassandra/lib/commons-lang3-3.1.jar:/usr/share15.1403.jar:/usr/share/dse/cassandra/lib/cassandra-thrift-2.1.15.1403.jar:/usr/share/dse/cassandra/lib/commons-cli-1.1.jar:/usr/share/dse /cassandra/lib/commons-codec-1.9.jar:/usr/share/dse/cassandra/lib/commons-lang-2.6.jar:/usr/share/dse/cassandra/lib/commons-lang3-3.1.jar :/usr/共享15.1403.jar:/usr/share/dse/cassandra/lib/cassandra-thrift-2.1.15.1403.jar:/usr/share/dse/cassandra/lib/commons-cli-1.1.jar:/usr/share/dse /cassandra/lib/commons-codec-1.9.jar:/usr/share/dse/cassandra/lib/commons-lang-2.6.jar:/usr/share/dse/cassandra/lib/commons-lang3-3.1.jar :/usr/共享