title: Not able to start DSE Server
body: <p>I've installed DataStax Enterprise with simple install settings. I am trying to use Cassandra, so I started the server using : </p>
  
  <pre><code>bin/dse cassandra 
  </code></pre>
  
  <p>But it stucks showing an error. Below is the data I am getting after running the above command : (Also the system.log file content)</p>
  
  <pre><code>INFO  15:39:51,502  DseModule.java:88 - Loading DSE module
  INFO  15:39:51,635  DseConfigYamlLoader.java:38 - Loading settings from file:/home/ishan/dse/resources/dse/conf/dse.yaml
  INFO  15:39:52,107  DseConfig.java:372 - Load of settings is done.
  INFO  15:39:52,109  DseConfig.java:392 - CQL slow log is enabled
  INFO  15:39:52,111  DseConfig.java:393 - CQL system info tables are not enabled
  INFO  15:39:52,112  DseConfig.java:394 - Resource level latency tracking is not enabled
  INFO  15:39:52,112  DseConfig.java:395 - Database summary stats are not enabled
  INFO  15:39:52,113  DseConfig.java:396 - Cluster summary stats are not enabled
  INFO  15:39:52,113  DseConfig.java:397 - Histogram data tables are not enabled
  INFO  15:39:52,114  DseConfig.java:398 - User level latency tracking is not enabled
  INFO  15:39:52,114  DseConfig.java:400 - Spark cluster info tables are not enabled
  INFO  15:39:52,149  YamlConfigurationLoader.java:85 - Configuration location: file:/home/ishan/dse/resources/cassandra/conf/cassandra.yaml
  INFO  15:39:52,212  YamlConfigurationLoader.java:85 - Configuration location: file:/home/ishan/dse/resources/cassandra/conf/cassandra.yaml
  INFO  15:39:52,341  Config.java:451 - Node configuration:[allocate_tokens_for_keyspace=null; authenticator=AllowAllAuthenticator; authorizer=AllowAllAuthorizer; auto_bootstrap=true; auto_snapshot=true; batch_size_fail_threshold_in_kb=640; batch_size_warn_threshold_in_kb=64; batchlog_replay_throttle_in_kb=1024; broadcast_address=null; broadcast_rpc_address=null; buffer_pool_use_heap_if_exhausted=true; cas_contention_timeout_in_ms=1000; client_encryption_options=&lt;REDACTED&gt;; cluster_name=Test Cluster; column_index_size_in_kb=64; commit_failure_policy=stop; commitlog_compression=null; commitlog_directory=/home/ishan/dse/commitlog; commitlog_max_compression_buffers_in_pool=3; commitlog_periodic_queue_size=-1; commitlog_segment_size_in_mb=32; commitlog_sync=periodic; commitlog_sync_batch_window_in_ms=null; commitlog_sync_period_in_ms=10000; commitlog_total_space_in_mb=null; compaction_large_partition_warning_threshold_mb=100; compaction_throughput_mb_per_sec=16; concurrent_compactors=null; concurrent_counter_writes=32; concurrent_materialized_view_writes=32; concurrent_reads=32; concurrent_replicates=null; concurrent_writes=32; counter_cache_keys_to_save=2147483647; 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=[Ljava.lang.String;@180da663; disk_access_mode=auto; disk_failure_policy=stop; disk_optimization_estimate_percentile=0.95; disk_optimization_page_cross_chance=0.1; disk_optimization_strategy=ssd; dynamic_snitch=true; dynamic_snitch_badness_threshold=0.1; dynamic_snitch_reset_interval_in_ms=600000; dynamic_snitch_update_interval_in_ms=100; enable_scripted_user_defined_functions=false; enable_user_defined_functions=false; enable_user_defined_functions_threads=true; encryption_options=null; endpoint_snitch=com.datastax.bdp.snitch.DseDelegateSnitch; file_cache_size_in_mb=512; gc_log_threshold_in_ms=200; gc_warn_threshold_in_ms=1000; hinted_handoff_disabled_datacenters=[]; hinted_handoff_enabled=true; hinted_handoff_throttle_in_kb=1024; hints_compression=null; hints_directory=/home/ishan/dse/hints; hints_flush_period_in_ms=10000; incremental_backups=false; index_interval=null; index_summary_capacity_in_mb=null; index_summary_resize_interval_in_minutes=60; initial_token=null; inter_dc_stream_throughput_outbound_megabits_per_sec=200; inter_dc_tcp_nodelay=false; internode_authenticator=null; internode_compression=dc; internode_recv_buff_size_in_bytes=null; internode_send_buff_size_in_bytes=null; key_cache_keys_to_save=2147483647; key_cache_save_period=14400; key_cache_size_in_mb=null; listen_address=127.0.0.1; listen_interface=null; listen_interface_prefer_ipv6=false; listen_on_broadcast_address=false; max_hint_window_in_ms=10800000; max_hints_delivery_threads=2; max_hints_file_size_in_mb=128; max_mutation_size_in_kb=null; max_streaming_retries=3; max_value_size_in_mb=256; memtable_allocation_type=heap_buffers; memtable_cleanup_threshold=null; memtable_flush_writers=null; memtable_heap_space_in_mb=null; memtable_offheap_space_in_mb=null; min_free_space_per_drive_in_mb=50; native_transport_max_concurrent_connections=-1; native_transport_max_concurrent_connections_per_ip=-1; native_transport_max_frame_size_in_mb=256; native_transport_max_threads=128; native_transport_port=9042; native_transport_port_ssl=null; num_tokens=1; otc_coalescing_enough_coalesced_messages=8; otc_coalescing_strategy=DISABLED; otc_coalescing_window_us=200; partitioner=org.apache.cassandra.dht.Murmur3Partitioner; permissions_cache_max_entries=1000; permissions_update_interval_in_ms=-1; permissions_validity_in_ms=2000; phi_convict_threshold=8.0; range_request_timeout_in_ms=10000; read_request_timeout_in_ms=5000; request_scheduler=org.apache.cassandra.scheduler.NoScheduler; request_scheduler_id=null; request_scheduler_options=null; request_timeout_in_ms=10000; role_manager=com.datastax.bdp.cassandra.auth.DseRoleManager; roles_cache_max_entries=1000; roles_update_interval_in_ms=-1; roles_validity_in_ms=2000; row_cache_class_name=org.apache.cassandra.cache.OHCProvider; row_cache_keys_to_save=2147483647; row_cache_save_period=0; row_cache_size_in_mb=0; rpc_address=127.0.0.1; rpc_interface=null; rpc_interface_prefer_ipv6=false; rpc_keepalive=true; rpc_listen_backlog=50; rpc_max_threads=2147483647; rpc_min_threads=16; rpc_port=9160; rpc_recv_buff_size_in_bytes=null; rpc_send_buff_size_in_bytes=null; rpc_server_type=sync; saved_caches_directory=/home/ishan/dse/saved_caches; seed_provider=org.apache.cassandra.locator.SimpleSeedProvider{seeds=127.0.0.1}; server_encryption_options=&lt;REDACTED&gt;; snapshot_before_compaction=false; ssl_storage_port=7001; sstable_preemptive_open_interval_in_mb=50; start_native_transport=true; start_rpc=true; storage_port=7000; stream_throughput_outbound_megabits_per_sec=200; streaming_socket_timeout_in_ms=86400000; thrift_framed_transport_size_in_mb=15; thrift_max_message_length_in_mb=16; tombstone_failure_threshold=100000; tombstone_warn_threshold=1000; tracetype_query_ttl=86400; tracetype_repair_ttl=604800; trickle_fsync=true; trickle_fsync_interval_in_kb=10240; truncate_request_timeout_in_ms=60000; unlogged_batch_across_partitions_warn_threshold=10; user_defined_function_fail_timeout=1500; user_defined_function_warn_timeout=500; user_function_timeout_policy=die; windows_timer_interval=1; write_request_timeout_in_ms=2000]
  INFO  15:39:52,345  DatabaseDescriptor.java:323 - DiskAccessMode 'auto' determined to be mmap, indexAccessMode is mmap
  INFO  15:39:52,372  DatabaseDescriptor.java:437 - Global memtable on-heap threshold is enabled at 495MB
  INFO  15:39:52,373  DatabaseDescriptor.java:441 - Global memtable off-heap threshold is enabled at 495MB
  INFO  15:39:52,376  DseDelegateSnitch.java:44 - Setting my workload to SearchAnalytics
  INFO  15:39:52,405  YamlConfigurationLoader.java:85 - Configuration location: file:/home/ishan/dse/resources/cassandra/conf/cassandra.yaml
  INFO  15:39:52,408  DseDelegateSnitch.java:46 - Initialized DseDelegateSnitch with workload SearchAnalytics, delegating to com.datastax.bdp.snitch.DseSimpleSnitch
  WARN  15:39:52,436  DatabaseDescriptor.java:603 - Only 10748 MB free across all data volumes. Consider adding more capacity to your cluster or removing obsolete snapshots
  INFO  15:39:52,454  YamlConfigurationLoader.java:85 - Configuration location: file:/home/ishan/dse/resources/cassandra/conf/cassandra.yaml
  INFO  15:39:52,456  DseConfig.java:434 - Cql solr query paging is: off
  INFO  15:39:52,460  DseConfig.java:449 - Server ID:C4-8E-8F-8F-4E-57
  INFO  15:39:52,931  GraphYamlConfigurationReader.java:185 - Loading graph settings from file:/home/ishan/dse/resources/dse/conf/dse.yaml
  INFO  15:39:52,931  GraphYamlConfigurationReader.java:189 - Opened stream on file:/home/ishan/dse/resources/dse/conf/dse.yaml
  ERROR 15:39:53,061  DseModule.java:98 - org/apache/spark/util/ByteBufferInputStream. Exiting...
  </code></pre>
  
  <p>Can anyone guide me here ? Thanks in advance.
  And my cassandra.yaml file content is (without comments) - </p>
  
  <pre><code>cluster_name: 'Test Cluster'
  hinted_handoff_enabled: true
  max_hint_window_in_ms: 10800000 # 3 hours
  hinted_handoff_throttle_in_kb: 1024
  max_hints_delivery_threads: 2
  hints_directory: /home/ishan/dse/hints
  hints_flush_period_in_ms: 10000
  max_hints_file_size_in_mb: 128
  batchlog_replay_throttle_in_kb: 1024
  authenticator: AllowAllAuthenticator
  authorizer: AllowAllAuthorizer
  role_manager: com.datastax.bdp.cassandra.auth.DseRoleManager
  roles_validity_in_ms: 2000
  permissions_validity_in_ms: 2000
  partitioner: org.apache.cassandra.dht.Murmur3Partitioner
  data_file_directories:
   - /home/ishan/dse/data
  commitlog_directory: /home/ishan/dse/commitlog
  disk_failure_policy: stop
  commit_failure_policy: stop
  key_cache_size_in_mb:
  key_cache_save_period: 14400
  row_cache_size_in_mb: 0
  row_cache_save_period: 0
  counter_cache_size_in_mb:
  counter_cache_save_period: 7200
  saved_caches_directory: /home/ishan/dse/saved_caches
  commitlog_sync: periodic
  commitlog_sync_period_in_ms: 10000
  commitlog_segment_size_in_mb: 32
  seed_provider:
  - class_name: org.apache.cassandra.locator.SimpleSeedProvider
    parameters:
        - seeds: "127.0.0.1"
  concurrent_reads: 32
  concurrent_writes: 32
  concurrent_counter_writes: 32
  concurrent_materialized_view_writes: 32
  memtable_allocation_type: heap_buffers
  index_summary_capacity_in_mb:
  index_summary_resize_interval_in_minutes: 60
  trickle_fsync: true
  trickle_fsync_interval_in_kb: 10240
  storage_port: 7000
  ssl_storage_port: 7001
  listen_address: 127.0.0.1
  start_native_transport: true
  native_transport_port: 9042
  start_rpc: true
  rpc_address: 127.0.0.1
  rpc_port: 9160
  rpc_keepalive: true
  rpc_server_type: sync
  thrift_framed_transport_size_in_mb: 15
  incremental_backups: false
  snapshot_before_compaction: false
  auto_snapshot: true
  tombstone_warn_threshold: 1000
  tombstone_failure_threshold: 100000
  column_index_size_in_kb: 64
  batch_size_warn_threshold_in_kb: 64
  batch_size_fail_threshold_in_kb: 640
  unlogged_batch_across_partitions_warn_threshold: 10
  compaction_throughput_mb_per_sec: 16
  compaction_large_partition_warning_threshold_mb: 100
  sstable_preemptive_open_interval_in_mb: 50
  read_request_timeout_in_ms: 5000
  range_request_timeout_in_ms: 10000
  write_request_timeout_in_ms: 2000
  counter_write_request_timeout_in_ms: 5000
  cas_contention_timeout_in_ms: 1000
  truncate_request_timeout_in_ms: 60000
  request_timeout_in_ms: 10000
  cross_node_timeout: false
  endpoint_snitch: com.datastax.bdp.snitch.DseSimpleSnitch
  dynamic_snitch_update_interval_in_ms: 100
  dynamic_snitch_reset_interval_in_ms: 600000
  dynamic_snitch_badness_threshold: 0.1
  request_scheduler: org.apache.cassandra.scheduler.NoScheduler
  server_encryption_options:
  internode_encryption: none
  keystore: resources/dse/conf/.keystore
  keystore_password: cassandra
  truststore: resources/dse/conf/.truststore
  truststore_password: cassandra             [TLS_RSA_WITH_AES_128_CBC_SHA,TLS_RSA_WITH_AES_256_CBC_SHA,TLS_DHE_RSA_WITH_AES_128_CBC_SHA,TLS_DHE_RSA_WITH_AES_256_CBC_SHA,TLS_ECDHE_RSA_WITH_AES_128_CBC_SHA,TLS_ECDHE_RSA_WITH_AES_256_CBC_SHA]
  client_encryption_options:
  enabled: false
  optional: false
  keystore: resources/dse/conf/.keystore
  keystore_password: cassandra [TLS_RSA_WITH_AES_128_CBC_SHA,TLS_RSA_WITH_AES_256_CBC_SHA,TLS_DHE_RSA_WITH_AES_128_CBC_SHA,TLS_DHE_RSA_WITH_AES_256_CBC_SHA,TLS_ECDHE_RSA_WITH_AES_128_CBC_SHA,TLS_ECDHE_RSA_WITH_AES_256_CBC_SHA]
  internode_compression: dc
  inter_dc_tcp_nodelay: false
  tracetype_query_ttl: 86400
  tracetype_repair_ttl: 604800
  gc_warn_threshold_in_ms: 1000
  enable_user_defined_functions: false
  enable_scripted_user_defined_functions: false
  windows_timer_interval: 1
  otc_coalescing_strategy: DISABLED
  </code></pre>
  
  <p>and the contents of dse.yaml file is - </p>
  
  <pre><code>max_memory_to_lock_fraction: 0.20
  hive_meta_store_enabled: true
  authentication_options:
  enabled: false
  default_scheme: kerberos
  other_schemes:
      - internal
  scheme_permissions: true
  allow_digest_with_kerberos: true
  plain_text_without_ssl: warn
  transitional_mode: disabled
  role_management_options:
  mode: internal
  authorization_options:
  enabled: false
  transitional_mode: disabled
  kerberos_options:
  keytab: resources/dse/conf/dse.keytab
  service_principal: dse/_HOST@REALM
  http_principal: HTTP/_HOST@REALM
  qop: auth
  ttl_index_rebuild_options:
  fixed_rate_period: 300
  initial_delay: 20
  max_docs_per_batch: 200
  thread_pool_size: 1
  solr_resource_upload_limit_mb: 10
  shard_transport_options:
  type: netty
  netty_server_port: 8984
  solr_encryption_options:
  graph_events:
  ttl_seconds: 600
  cql_slow_log_options:
  enabled: true
  threshold: 2000.0
  minimum_samples: 100
  ttl_seconds: 259200
  cql_system_info_options:
  enabled: false
  refresh_rate_ms: 10000
  resource_level_latency_tracking_options:
  enabled: false
  refresh_rate_ms: 10000
  db_summary_stats_options:
  enabled: false
  refresh_rate_ms: 10000
  cluster_summary_stats_options:
  enabled: false
  refresh_rate_ms: 10000
  spark_cluster_info_options:
  enabled: false
  refresh_rate_ms: 10000
  spark_application_info_options:
  enabled: false
  refresh_rate_ms: 10000
  driver:
      sink: false
      connectorSource: false
      jvmSource: false
      stateSource: false
  executor:
      sink: false
      connectorSource: false
      jvmSource: false
  histogram_data_options:
  enabled: false
  refresh_rate_ms: 10000
  retention_count: 3
  user_level_latency_tracking_options:
  enabled: false
  refresh_rate_ms: 10000
  top_stats_limit: 100
  quantiles: false
  solr_indexing_error_log_options:
  enabled: false
  ttl_seconds: 604800
  async_writers: 1
  solr_slow_sub_query_log_options:
  enabled: false
  ttl_seconds: 604800
  async_writers: 1
  threshold_ms: 3000
  solr_update_handler_metrics_options:
  enabled: false
  ttl_seconds: 604800
  refresh_rate_ms: 60000
  solr_request_handler_metrics_options:
  enabled: false
  ttl_seconds: 604800
  refresh_rate_ms: 60000
  solr_index_stats_options:
  enabled: false
  ttl_seconds: 604800
  refresh_rate_ms: 60000
  solr_cache_stats_options:
  enabled: false
  ttl_seconds: 604800
  refresh_rate_ms: 60000
  solr_latency_snapshot_options:
  enabled: false
  ttl_seconds: 604800
  refresh_rate_ms: 60000
  node_health_options:
  uptime_ramp_up_period_seconds: 86400
  dropped_mutation_window_minutes: 30
  enable_health_based_routing: true
  async_bootstrap_reindex: false
  lease_metrics_options:
  enabled: false
  ttl_seconds: 604800
  system_key_directory: /home/ishan/dse/resources/dse/system_keys
  config_encryption_active: false
  config_encryption_key_name: system_key
  initial_spark_worker_resources: 0.7
  spark_shared_secret_bit_length: 256
  spark_security_enabled: false=
  spark_security_encryption_enabled: false
  hadoop_options:
  spark_encryption_options:
  enabled: false
  keystore: .keystore
  keystore_password: cassandra
  key_password: cassandra
  truststore: .truststore
  truststore_password: cassandra
  dsefs_options:
  enabled: false
  keyspace_name: dsefs
  work_dir: /home/ishan/dse/dsefs
  public_port: 5598
  private_port: 5599
  data_directories:
      - dir: /var/lib/dsefs/data
        storage_weight: 1.0
        min_free_space: 5368709120
  audit_logging_options:
  enabled: false
  logger: SLF4JAuditWriter
  retention_time: 0
  cassandra_audit_writer_options:
      mode: sync
      batch_size: 50
      flush_time: 500
      num_writers: 10
      queue_size: 10000
      write_consistency: QUORUM
  system_info_encryption:
  enabled: false
  cipher_algorithm: AES
  secret_key_strength: 128
  chunk_length_kb: 64
  hive_options:
  insert_max_retries: 6
  insert_retry_sleep_period: 50
  internode_messaging_options:
  port: 8609
  graph:
  adjacency_cache_clean_rate: 1024
  adjacency_cache_max_entry_size_in_mb: 0
  adjacency_cache_size_in_mb: 128
  analytic_evaluation_timeout_in_minutes: 10080
  gremlin_server_enabled: true
  index_cache_clean_rate: 1024
  index_cache_max_entry_size_in_mb: 0
  index_cache_size_in_mb: 128
  max_query_queue: 10000
  realtime_evaluation_timeout_in_seconds: 30
  schema_agreement_timeout_in_ms: 60000
  schema_mode: Development
  system_evaluation_timeout_in_seconds: 180
  window_size: 100000
  ids:
      block_renew: 0.8
      community_reuse: 28
      consistency_mode: GLOBAL
      id_hash_modulus: 20
      member_block_size: 512
  listener:
  msg:
      graph_msg_timeout_in_ms: 5000
  observer:
  shared_data:
      refresh_interval_in_ms: 60000
  gremlin_server:
      port: 8182
      threadPoolWorker: 2
      gremlinPool: 0
      maxContentLength: 65536000
      maxChunkSize: 4096000
      maxInitialLineLength: 4096
      maxHeaderSize: 8192
      maxAccumulationBufferComponents: 1024
      resultIterationBatchSize: 64
      useEpollEventLoop: false
      serializers:
          - { className: org.apache.tinkerpop.gremlin.driver.ser.GryoMessageSerializerV1d0, config: { ioRegistries: [org.apache.tinkerpop.gremlin.tinkergraph.structure.TinkerIoRegistry], classResolverSupplier: com.datastax.bdp.graph.impl.tinkerpop.io.DseClassResolverProvider }}
          - { className: org.apache.tinkerpop.gremlin.driver.ser.GryoLiteMessageSerializerV1d0, config: { ioRegistries: [org.apache.tinkerpop.gremlin.tinkergraph.structure.TinkerIoRegistry], classResolverSupplier: com.datastax.bdp.graph.impl.tinkerpop.io.DseClassResolverProvider }}
          - { className: org.apache.tinkerpop.gremlin.driver.ser.GryoMessageSerializerV1d0, config: { serializeResultToString: true }}
          - { className: org.apache.tinkerpop.gremlin.driver.ser.GraphSONMessageSerializerGremlinV1d0, config: { ioRegistries: [org.apache.tinkerpop.gremlin.tinkergraph.structure.TinkerIoRegistry] }}
          - { className: org.apache.tinkerpop.gremlin.driver.ser.GraphSONMessageSerializerGremlinV2d0, config: { ioRegistries: [org.apache.tinkerpop.gremlin.tinkergraph.structure.TinkerIoRegistryV2d0, com.datastax.bdp.graph.impl.tinkerpop.io.DseGraphIoRegistryV2d0] }}
          - { className: org.apache.tinkerpop.gremlin.driver.ser.GraphSONMessageSerializerV1d0, config: { ioRegistries: [org.apache.tinkerpop.gremlin.tinkergraph.structure.TinkerIoRegistry] }}
      scriptEngines:
          gremlin-groovy:
              config:
                  compilerCustomizerProviders:
                      "org.apache.tinkerpop.gremlin.groovy.jsr223.customizer.ThreadInterruptCustomizerProvider": []
                      "org.apache.tinkerpop.gremlin.groovy.jsr223.customizer.InterpreterModeCustomizerProvider": []
  </code></pre>