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在Databricks中使用DBFS挂载存储作为MongoDB --dbpath时遇WiredTiger错误

在Databricks Notebook中使用DBFS挂载存储作为MongoDB数据目录时出现Operation not supported错误

我尝试在Databricks Notebook中搭建MongoDB实例,将DBFS挂载的Azure Blob或S3桶作为数据存储位置。目前可以正常挂载存储并在Databricks中访问,也能通过Python执行POSIX调用,但设置--dbpath参数指向DBFS挂载点启动MongoDB时,出现Operation not supported错误,错误日志如下:

{"t":{"$date":"2023-10-12T11:13:17.785+00:00"},"s":"I",  "c":"CONTROL",  "id":23285,   "ctx":"main","msg":"Automatically disabling TLS 1.0, to force-enable TLS 1.0 specify --sslDisabledProtocols 'none'"}
{"t":{"$date":"2023-10-12T11:13:17.786+00:00"},"s":"I",  "c":"NETWORK",  "id":4915701, "ctx":"main","msg":"Initialized wire specification","attr":{"spec":{"incomingExternalClient":{"minWireVersion":0,"maxWireVersion":21},"incomingInternalClient":{"minWireVersion":0,"maxWireVersion":21},"outgoing":{"minWireVersion":6,"maxWireVersion":21},"isInternalClient":true}}}
{"t":{"$date":"2023-10-12T11:13:17.788+00:00"},"s":"I",  "c":"NETWORK",  "id":4648601, "ctx":"main","msg":"Implicit TCP FastOpen unavailable. If TCP FastOpen is required, set tcpFastOpenServer, tcpFastOpenClient, and tcpFastOpenQueueSize."}
{"t":{"$date":"2023-10-12T11:13:17.789+00:00"},"s":"I",  "c":"REPL",     "id":5123008, "ctx":"main","msg":"Successfully registered PrimaryOnlyService","attr":{"service":"TenantMigrationDonorService","namespace":"config.tenantMigrationDonors"}}
{"t":{"$date":"2023-10-12T11:13:17.789+00:00"},"s":"I",  "c":"REPL",     "id":5123008, "ctx":"main","msg":"Successfully registered PrimaryOnlyService","attr":{"service":"TenantMigrationRecipientService","namespace":"config.tenantMigrationRecipients"}}
{"t":{"$date":"2023-10-12T11:13:17.789+00:00"},"s":"I",  "c":"CONTROL",  "id":5945603, "ctx":"main","msg":"Multi threading initialized"}
{"t":{"$date":"2023-10-12T11:13:17.789+00:00"},"s":"I",  "c":"TENANT_M", "id":7091600, "ctx":"main","msg":"Starting TenantMigrationAccessBlockerRegistry"}
{"t":{"$date":"2023-10-12T11:13:17.789+00:00"},"s":"I",  "c":"CONTROL",  "id":4615611, "ctx":"initandlisten","msg":"MongoDB starting","attr":{"pid":4048,"port":27017,"dbPath":"/dbfs/mnt/aws/fiftyone/db","architecture":"64-bit","host":"1006-121834-gtupj2oh-10-139-64-4"}}
{"t":{"$date":"2023-10-12T11:13:17.789+00:00"},"s":"I",  "c":"CONTROL",  "id":23403,   "ctx":"initandlisten","msg":"Build Info","attr":{"buildInfo":{"version":"7.0.2","gitVersion":"02b3c655e1302209ef046da6ba3ef6749dd0b62a","openSSLVersion":"OpenSSL 3.0.2 15 Mar 2022","modules":[],"allocator":"tcmalloc","environment":{"distmod":"ubuntu2204","distarch":"x86_64","target_arch":"x86_64"}}}}
{"t":{"$date":"2023-10-12T11:13:17.789+00:00"},"s":"I",  "c":"CONTROL",  "id":51765,   "ctx":"initandlisten","msg":"Operating System","attr":{"os":{"name":"Ubuntu","version":"22.04"}}}
{"t":{"$date":"2023-10-12T11:13:17.789+00:00"},"s":"I",  "c":"CONTROL",  "id":21951,   "ctx":"initandlisten","msg":"Options set by command line","attr":{"options":{"storage":{"dbPath":"/dbfs/mnt/aws/fiftyone/db"}}}}
{"t":{"$date":"2023-10-12T11:13:18.185+00:00"},"s":"I",  "c":"STORAGE",  "id":22315,   "ctx":"initandlisten","msg":"Opening WiredTiger","attr":{"config":"create,cache_size=10994M,session_max=33000,eviction=(threads_min=4,threads_max=4),config_base=false,statistics=(fast),log=(enabled=true,remove=true,path=journal,compressor=snappy),builtin_extension_config=(zstd=(compression_level=6)),file_manager=(close_idle_time=600,close_scan_interval=10,close_handle_minimum=2000),statistics_log=(wait=0),json_output=(error,message),verbose=[recovery_progress:1,checkpoint_progress:1,compact_progress:1,backup:0,checkpoint:0,compact:0,evict:0,history_store:0,recovery:0,rts:0,salvage:0,tiered:0,timestamp:0,transaction:0,verify:0,log:0],"}}
{"t":{"$date":"2023-10-12T11:13:19.576+00:00"},"s":"E",  "c":"WT",       "id":22435,   "ctx":"initandlisten","msg":"WiredTiger error message","attr":{"error":95,"message":{"ts_sec":1697109199,"ts_usec":576472,"thread":"4048:0x7fcff4155c80","session_name":"connection","category":"WT_VERB_DEFAULT","category_id":9,"verbose_level":"ERROR","verbose_level_id":-3,"msg":"__posix_file_close:360:/dbfs/mnt/aws/fiftyone/db/journal/WiredTigerTmplog.0000000001: handle-close: close","error_str":"Operation not supported","error_code":95}}}
{"t":{"$date":"2023-10-12T11:13:20.307+00:00"},"s":"E",  "c":"WT",       "id":22435,   "ctx":"initandlisten","msg":"WiredTiger error message","attr":{"error":95,"message":{"ts_sec":1697109200,"ts_usec":306958,"thread":"4048:0x7fcff4155c80","session_name":"connection","category":"WT_VERB_DEFAULT","category_id":9,"verbose_level":"ERROR","verbose_level_id":-3,"msg":"__posix_file_close:360:/dbfs/mnt/aws/fiftyone/db/journal/WiredTigerTmplog.0000000001: handle-close: close","error_str":"Operation not supported","error_code":95}}}
{"t":{"$date":"2023-10-12T11:13:21.059+00:00"},"s":"E",  "c":"WT",       "id":22435,   "ctx":"initandlisten","msg":"WiredTiger error message","attr":{"error":95,"message":{"ts_sec":1697109201,"ts_usec":59781,"thread":"4048:0x7fcff4155c80","session_name":"connection","category":"WT_VERB_DEFAULT","category_id":9,"verbose_level":"ERROR","verbose_level_id":-3,"msg":"__posix_file_close:360:/dbfs/mnt/aws/fiftyone/db/journal/WiredTigerTmplog.0000000001: handle-close: close","error_str":"Operation not supported","error_code":95}}}
{"t":{"$date":"2023-10-12T11:13:21.063+00:00"},"s":"W",  "c":"STORAGE",  "id":22347,   "ctx":"initandlisten","msg":"Failed to start up WiredTiger under any compatibility version. This may be due to an unsupported upgrade or downgrade."}
{"t":{"$date":"2023-10-12T11:13:21.063+00:00"},"s":"F",  "c":"STORAGE",  "id":28595,   "ctx":"initandlisten","msg":"Terminating.","attr":{"reason":"95: Operation not supported"}}
{"t":{"$date":"2023-10-12T11:13:21.063+00:00"},"s":"F",  "c":"ASSERT",   "id":23091,   "ctx":"initandlisten","msg":"Fatal assertion","attr":{"msgid":28595,"file":"src/mongo/db/storage/wiredtiger/wiredtiger_kv_engine.cpp","line":674}}
{"t":{"$date":"2023-10-12T11:13:21.063+00:00"},"s":"F",  "c":"ASSERT",   "id":23092,   "ctx":"initandlisten","msg":"\n\n***aborting after fassert() failure\n\n"}

补充信息

  • 已清楚使用FUSE或NFS对MongoDB性能的影响
  • 在Google Colab中挂载Google Drive执行相同操作可正常运行
  • 挂载Azure Blob存储和S3桶均出现相同问题,使用本地系统路径则正常
  • 尝试过MongoDB 5、6、7版本及多种Databricks Runtime,DBFS挂载场景下均存在该问题

请问该问题的原因及解决方法是什么?感谢帮助。


内容的提问来源于stack exchange,提问作者Ashis Dahal

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最近更新时间:2026.07.08 18:24:49