(conn=1343739) Error writing file '/tmp/MYfd=172' (OS errno 28 - No space left on device)

Metabase Info:

{
"browser-info": {
"language": "en-US",
"platform": "Win32",
"userAgent": "Mozilla/5.0 (Windows NT 10.0; Win64; x64) AppleWebKit/537.36 (KHTML, like Gecko) Chrome/103.0.0.0 Safari/537.36",
"vendor": "Google Inc."
},
"system-info": {
"file.encoding": "ANSI_X3.4-1968",
"java.runtime.name": "OpenJDK Runtime Environment",
"java.runtime.version": "11.0.15+9-LTS",
"java.vendor": "Red Hat, Inc.",
"java.vendor.url": "https://www.redhat.com/",
"java.version": "11.0.15",
"java.vm.name": "OpenJDK 64-Bit Server VM",
"java.vm.version": "11.0.15+9-LTS",
"os.name": "Linux",
"os.version": "4.18.0-305.49.1.el8_4.x86_64",
"user.language": "en",
"user.timezone": "America/New_York"
},
"metabase-info": {
"databases": [
"h2",
"oracle",
"mysql",
"mongo",
"sqlserver",
"postgres"
],
"hosting-env": "unknown",
"application-database": "mysql",
"application-database-details": {
"database": {
"name": "MySQL",
"version": "8.0.29"
},
"jdbc-driver": {
"name": "MariaDB Connector/J",
"version": "2.6.2"
}
},
"run-mode": "prod",
"version": {
"date": "2022-03-28",
"tag": "vUNKNOWN",
"branch": "?",
"hash": "fb961dc"
},
"settings": {
"report-timezone": null
}
}
}

We tried increasing tmp size but still facing same issue(No matter how much we increase). We also upgraded Mysql version to 8.0.29
Logs from admin/troubleshooting/logs: -

[d372f63f-2aa0-4cbc-ba11-bf5e503dd0fc] 2022-07-29T18:19:07+05:30 ERROR metabase.server.middleware.log GET /api/database/24/metadata 500 26.3 s (8 DB calls)
{:via
[{:type java.sql.SQLTransientConnectionException,
:message "(conn=1343739) Error writing file '/tmp/MYfd=172' (OS errno 28 - No space left on device)",
:at [org.mariadb.jdbc.internal.util.exceptions.ExceptionFactory createException "ExceptionFactory.java" 79]}
{:type org.mariadb.jdbc.internal.util.exceptions.MariaDbSqlException,
:message "Error writing file '/tmp/MYfd=172' (OS errno 28 - No space left on device)",
:at [org.mariadb.jdbc.internal.util.exceptions.MariaDbSqlException of "MariaDbSqlException.java" 34]}
{:type java.sql.SQLTransientConnectionException,
:message "Error writing file '/tmp/MYfd=172' (OS errno 28 - No space left on device)",
:at [org.mariadb.jdbc.internal.util.exceptions.ExceptionFactory createException "ExceptionFactory.java" 79]}],
:trace
[[org.mariadb.jdbc.internal.util.exceptions.ExceptionFactory createException "ExceptionFactory.java" 79]
[org.mariadb.jdbc.internal.util.exceptions.ExceptionFactory create "ExceptionFactory.java" 187]
[org.mariadb.jdbc.internal.com.read.resultset.SelectResultSet readNextValue "SelectResultSet.java" 387]
[org.mariadb.jdbc.internal.com.read.resultset.SelectResultSet fetchAllResults "SelectResultSet.java" 293]
[org.mariadb.jdbc.internal.com.read.resultset.SelectResultSet "SelectResultSet.java" 155]
[org.mariadb.jdbc.internal.protocol.AbstractQueryProtocol readResultSet "AbstractQueryProtocol.java" 1844]
[org.mariadb.jdbc.internal.protocol.AbstractQueryProtocol readPacket "AbstractQueryProtocol.java" 1563]
[org.mariadb.jdbc.internal.protocol.AbstractQueryProtocol getResult "AbstractQueryProtocol.java" 1513]
[org.mariadb.jdbc.internal.protocol.AbstractQueryProtocol executeQuery "AbstractQueryProtocol.java" 318]
[org.mariadb.jdbc.ClientSidePreparedStatement executeInternal "ClientSidePreparedStatement.java" 220]
[org.mariadb.jdbc.ClientSidePreparedStatement execute "ClientSidePreparedStatement.java" 149]
[org.mariadb.jdbc.ClientSidePreparedStatement executeQuery "ClientSidePreparedStatement.java" 163]
[com.mchange.v2.c3p0.impl.NewProxyPreparedStatement executeQuery "NewProxyPreparedStatement.java" 431]
[clojure.java.jdbc$execute_query_with_params invokeStatic "jdbc.clj" 1090]
[clojure.java.jdbc$execute_query_with_params invoke "jdbc.clj" 1084]
[clojure.java.jdbc$db_query_with_resultset_STAR_ invokeStatic "jdbc.clj" 1113]
[clojure.java.jdbc$db_query_with_resultset_STAR_ invoke "jdbc.clj" 1093]
[clojure.java.jdbc$query invokeStatic "jdbc.clj" 1182]
[clojure.java.jdbc$query invoke "jdbc.clj" 1144]
[toucan.db$query invokeStatic "db.clj" 288]
[toucan.db$query doInvoke "db.clj" 284]
[clojure.lang.RestFn invoke "RestFn.java" 410]
[toucan.db$simple_select invokeStatic "db.clj" 394]
[toucan.db$simple_select invoke "db.clj" 383]
[toucan.db$select invokeStatic "db.clj" 662]
[toucan.db$select doInvoke "db.clj" 656]
[clojure.lang.RestFn invoke "RestFn.java" 628]
[metabase.models.table$fields invokeStatic "table.clj" 123]
[metabase.models.table$fields invoke "table.clj" 120]
[clojure.lang.Var invoke "Var.java" 384]
[toucan.hydrate$simple_hydrate$iter__34365__34369$fn__34370$fn__34371 invoke "hydrate.clj" 262]
[toucan.hydrate$simple_hydrate$iter__34365__34369$fn__34370 invoke "hydrate.clj" 257]
[clojure.lang.LazySeq sval "LazySeq.java" 42]
[clojure.lang.LazySeq seq "LazySeq.java" 51]
[clojure.lang.RT seq "RT.java" 535]
[clojure.core$seq__5419 invokeStatic "core.clj" 139]
[clojure.core$map$fn__5884 invoke "core.clj" 2750]
[clojure.lang.LazySeq sval "LazySeq.java" 42]
[clojure.lang.LazySeq seq "LazySeq.java" 51]
[clojure.lang.RT seq "RT.java" 535]
[clojure.core$seq__5419 invokeStatic "core.clj" 139]
[clojure.core$map$fn__5884 invoke "core.clj" 2750]
[clojure.lang.LazySeq sval "LazySeq.java" 42]
[clojure.lang.LazySeq seq "LazySeq.java" 51]
[clojure.lang.RT seq "RT.java" 535]
[clojure.core$seq__5419 invokeStatic "core.clj" 139]
[clojure.core$apply invokeStatic "core.clj" 662]
[clojure.core$mapcat invokeStatic "core.clj" 2787]
[clojure.core$mapcat doInvoke "core.clj" 2787]
[clojure.lang.RestFn invoke "RestFn.java" 423]
[toucan.hydrate$counts_flatten invokeStatic "hydrate.clj" 74]
[toucan.hydrate$counts_flatten invoke "hydrate.clj" 63]
[toucan.hydrate$counts_apply invokeStatic "hydrate.clj" 111]
[toucan.hydrate$counts_apply invoke "hydrate.clj" 99]
[toucan.hydrate$hydrate_vector invokeStatic "hydrate.clj" 294]
[toucan.hydrate$hydrate_vector invoke "hydrate.clj" 284]
[toucan.hydrate$hydrate_1 invokeStatic "hydrate.clj" 309]
[toucan.hydrate$hydrate_1 invoke "hydrate.clj" 304]
[toucan.hydrate$hydrate_many invokeStatic "hydrate.clj" 314]
[toucan.hydrate$hydrate_many doInvoke "hydrate.clj" 311]
[clojure.lang.RestFn applyTo "RestFn.java" 142]
[clojure.core$apply invokeStatic "core.clj" 671]
[clojure.core$apply invoke "core.clj" 662]
[toucan.hydrate$hydrate invokeStatic "hydrate.clj" 432]
[toucan.hydrate$hydrate doInvoke "hydrate.clj" 343]
[clojure.lang.RestFn applyTo "RestFn.java" 142]
[clojure.core$apply invokeStatic "core.clj" 669]
[clojure.core$apply invoke "core.clj" 662]
[toucan.hydrate$hydrate_vector$fn__34390 invoke "hydrate.clj" 294]
[toucan.hydrate$counts_apply invokeStatic "hydrate.clj" 113]
[toucan.hydrate$counts_apply invoke "hydrate.clj" 99]
[toucan.hydrate$hydrate_vector invokeStatic "hydrate.clj" 294]
[toucan.hydrate$hydrate_vector invoke "hydrate.clj" 284]
[toucan.hydrate$hydrate_1 invokeStatic "hydrate.clj" 309]
[toucan.hydrate$hydrate_1 invoke "hydrate.clj" 304]
[toucan.hydrate$hydrate_many invokeStatic "hydrate.clj" 314]
[toucan.hydrate$hydrate_many doInvoke "hydrate.clj" 311]
[clojure.lang.RestFn invoke "RestFn.java" 425]
[clojure.lang.AFn applyToHelper "AFn.java" 156]
[clojure.lang.RestFn applyTo "RestFn.java" 132]
[clojure.core$apply invokeStatic "core.clj" 671]
[clojure.core$apply invoke "core.clj" 662]
[toucan.hydrate$hydrate invokeStatic "hydrate.clj" 433]
[toucan.hydrate$hydrate doInvoke "hydrate.clj" 343]
[clojure.lang.RestFn invoke "RestFn.java" 425]
[metabase.api.database$db_metadata invokeStatic "database.clj" 292]
[metabase.api.database$db_metadata invoke "database.clj" 290]
[metabase.api.database$fn__76928 invokeStatic "database.clj" 312]
[metabase.api.database$fn__76928 invoke "database.clj" 306]
[compojure.core$wrap_response$fn__32049 invoke "core.clj" 160]
[compojure.core$wrap_route_middleware$fn__32033 invoke "core.clj" 132]
[compojure.core$wrap_route_info$fn__32038 invoke "core.clj" 139]
[compojure.core$wrap_route_matches$fn__32042 invoke "core.clj" 151]
[compojure.core$routes$fn__32061$f__32062 invoke "core.clj" 198]
[compojure.core$routes$fn__32061$f__32062$respond_SINGLEQUOTE___32063 invoke "core.clj" 197]
[compojure.core$wrap_route_matches$fn__32042 invoke "core.clj" 152]
[compojure.core$routes$fn__32061$f__32062 invoke "core.clj" 198]
[compojure.core$routes$fn__32061$f__32062$respond_SINGLEQUOTE___32063 invoke "core.clj" 197]
[compojure.core$wrap_route_matches$fn__32042 invoke "core.clj" 152]
[compojure.core$routes$fn__32061$f__32062 invoke "core.clj" 198]
[compojure.core$routes$fn__32061$f__32062$respond_SINGLEQUOTE___32063 invoke "core.clj" 197]
[compojure.core$wrap_route_matches$fn__32042 invoke "core.clj" 153]
[compojure.core$routes$fn__32061$f__32062 invoke "core.clj" 198]
[compojure.core$routes$fn__32061$f__32062$respond_SINGLEQUOTE___32063 invoke "core.clj" 197]
[compojure.core$wrap_route_matches$fn__32042 invoke "core.clj" 152]
[compojure.core$routes$fn__32061$f__32062 invoke "core.clj" 198]
[compojure.core$routes$fn__32061$f__32062$respond_SINGLEQUOTE___32063 invoke "core.clj" 197]
[compojure.core$wrap_route_matches$fn__32042 invoke "core.clj" 153]
[compojure.core$routes$fn__32061$f__32062 invoke "core.clj" 198]
[compojure.core$routes$fn__32061$f__32062$respond_SINGLEQUOTE___32063 invoke "core.clj" 197]
[compojure.core$wrap_route_matches$fn__32042 invoke "core.clj" 152]
[compojure.core$routes$fn__32061$f__32062 invoke "core.clj" 198]
[compojure.core$routes$fn__32061$f__32062$respond_SINGLEQUOTE___32063 invoke "core.clj" 197]
[compojure.core$wrap_route_matches$fn__32042 invoke "core.clj" 153]
[compojure.core$routes$fn__32061$f__32062 invoke "core.clj" 198]
[compojure.core$routes$fn__32061$f__32062$respond_SINGLEQUOTE___32063 invoke "core.clj" 197]
[compojure.core$wrap_route_matches$fn__32042 invoke "core.clj" 153]
[compojure.core$routes$fn__32061$f__32062 invoke "core.clj" 198]
[compojure.core$routes$fn__32061$f__32062$respond_SINGLEQUOTE___32063 invoke "core.clj" 197]
[compojure.core$wrap_route_matches$fn__32042 invoke "core.clj" 153]
[compojure.core$routes$fn__32061$f__32062 invoke "core.clj" 198]
[compojure.core$routes$fn__32061$f__32062$respond_SINGLEQUOTE___32063 invoke "core.clj" 197]
[compojure.core$wrap_route_matches$fn__32042 invoke "core.clj" 153]
[compojure.core$routes$fn__32061$f__32062 invoke "core.clj" 198]
[compojure.core$routes$fn__32061$f__32062$respond_SINGLEQUOTE___32063 invoke "core.clj" 197]
[compojure.core$wrap_route_matches$fn__32042 invoke "core.clj" 153]
[compojure.core$routes$fn__32061$f__32062 invoke "core.clj" 198]
[compojure.core$routes$fn__32061 invoke "core.clj" 200]
[metabase.server.middleware.auth$enforce_authentication$fn__70229 invoke "auth.clj" 14]
[compojure.core$routes$fn__32061$f__32062 invoke "core.clj" 198]
[compojure.core$routes$fn__32061 invoke "core.clj" 200]
[compojure.core$make_context$handler__32089 invoke "core.clj" 289]
[compojure.core$make_context$fn__32093 invoke "core.clj" 299]
[compojure.core$routes$fn__32061$f__32062 invoke "core.clj" 198]
[compojure.core$routes$fn__32061$f__32062$respond_SINGLEQUOTE___32063 invoke "core.clj" 197]
[compojure.core$make_context$fn__32093 invoke "core.clj" 300]
[compojure.core$routes$fn__32061$f__32062 invoke "core.clj" 198]
[compojure.core$routes$fn__32061$f__32062$respond_SINGLEQUOTE___32063 invoke "core.clj" 197]
[compojure.core$make_context$fn__32093 invoke "core.clj" 300]
[compojure.core$routes$fn__32061$f__32062 invoke "core.clj" 198]
[compojure.core$routes$fn__32061$f__32062$respond_SINGLEQUOTE___32063 invoke "core.clj" 197]
[compojure.core$make_context$fn__32093 invoke "core.clj" 300]
[compojure.core$routes$fn__32061$f__32062 invoke "core.clj" 198]
[compojure.core$routes$fn__32061$f__32062$respond_SINGLEQUOTE___32063 invoke "core.clj" 197]
[compojure.core$make_context$fn__32093 invoke "core.clj" 300]
[compojure.core$routes$fn__32061$f__32062 invoke "core.clj" 198]
[compojure.core$routes$fn__32061$f__32062$respond_SINGLEQUOTE___32063 invoke "core.clj" 197]
[compojure.core$make_context$fn__32093 invoke "core.clj" 300]
[compojure.core$routes$fn__32061$f__32062 invoke "core.clj" 198]
[compojure.core$routes$fn__32061$f__32062$respond_SINGLEQUOTE___32063 invoke "core.clj" 197]
[compojure.core$make_context$fn__32093 invoke "core.clj" 300]
[compojure.core$routes$fn__32061$f__32062 invoke "core.clj" 198]
[compojure.core$routes$fn__32061$f__32062$respond_SINGLEQUOTE___32063 invoke "core.clj" 197]
[metabase.api.routes$fn__79704$fn__79707 invoke "routes.clj" 56]
[compojure.core$routes$fn__32061$f__32062 invoke "core.clj" 198]
[compojure.core$routes$fn__32061 invoke "core.clj" 200]
[clojure.lang.AFn applyToHelper "AFn.java" 160]
[clojure.lang.AFn applyTo "AFn.java" 144]
[clojure.core$apply invokeStatic "core.clj" 667]
[clojure.core$apply invoke "core.clj" 662]
[metabase.server.routes$fn__79849$fn__79850 doInvoke "routes.clj" 57]
[clojure.lang.RestFn invoke "RestFn.java" 436]
[compojure.core$routes$fn__32061$f__32062 invoke "core.clj" 198]
[compojure.core$routes$fn__32061 invoke "core.clj" 200]
[compojure.core$make_context$handler__32089 invoke "core.clj" 289]
[compojure.core$make_context$fn__32093 invoke "core.clj" 299]
[compojure.core$routes$fn__32061$f__32062 invoke "core.clj" 198]
[compojure.core$routes$fn__32061$f__32062$respond_SINGLEQUOTE___32063 invoke "core.clj" 197]
[compojure.core$wrap_route_matches$fn__32042 invoke "core.clj" 152]
[compojure.core$routes$fn__32061$f__32062 invoke "core.clj" 198]
[compojure.core$routes$fn__32061$f__32062$respond_SINGLEQUOTE___32063 invoke "core.clj" 197]
[compojure.core$wrap_route_matches$fn__32042 invoke "core.clj" 152]
[compojure.core$routes$fn__32061$f__32062 invoke "core.clj" 198]
[compojure.core$routes$fn__32061$f__32062$respond_SINGLEQUOTE___32063 invoke "core.clj" 197]
[compojure.core$wrap_route_matches$fn__32042 invoke "core.clj" 152]
[compojure.core$routes$fn__32061$f__32062 invoke "core.clj" 198]
[compojure.core$routes$fn__32061$f__32062$respond_SINGLEQUOTE___32063 invoke "core.clj" 197]
[metabase.server.routes$fn__79837$fn__79839 invoke "routes.clj" 41]
[compojure.core$routes$fn__32061$f__32062 invoke "core.clj" 198]
[compojure.core$routes$fn__32061 invoke "core.clj" 200]
[metabase.server.middleware.exceptions$catch_uncaught_exceptions$fn__77311 invoke "exceptions.clj" 98]
[metabase.server.middleware.exceptions$catch_api_exceptions$fn__77308 invoke "exceptions.clj" 86]
[metabase.server.middleware.log$log_api_call$fn__80304$fn__80305$fn__80306 invoke "log.clj" 209]
[metabase.driver.sql_jdbc.execute.diagnostic$do_with_diagnostic_info invokeStatic "diagnostic.clj" 15]
[metabase.driver.sql_jdbc.execute.diagnostic$do_with_diagnostic_info invoke "diagnostic.clj" 9]
[metabase.server.middleware.log$log_api_call$fn__80304$fn__80305 invoke "log.clj" 201]
[toucan.db$_do_with_call_counting invokeStatic "db.clj" 216]
[toucan.db$_do_with_call_counting invoke "db.clj" 209]
[metabase.server.middleware.log$log_api_call$fn__80304 invoke "log.clj" 200]
[metabase.server.middleware.browser_cookie$ensure_browser_id_cookie$fn__83517 invoke "browser_cookie.clj" 30]
[metabase.server.middleware.security$add_security_headers$fn__59176 invoke "security.clj" 144]
[metabase.server.middleware.json$wrap_json_body$fn__82661 invoke "json.clj" 62]
[metabase.server.middleware.json$wrap_streamed_json_response$fn__82679 invoke "json.clj" 98]
[metabase.server.middleware.offset_paging$handle_paging$fn__59200 invoke "offset_paging.clj" 42]
[ring.middleware.keyword_params$wrap_keyword_params$fn__83784 invoke "keyword_params.clj" 55]
[ring.middleware.params$wrap_params$fn__83800 invoke "params.clj" 69]
[metabase.server.middleware.misc$maybe_set_site_url$fn__34059 invoke "misc.clj" 59]
[metabase.server.middleware.session$bind_current_user$fn__44961$fn__44962 invoke "session.clj" 257]
[metabase.server.middleware.session$do_with_current_user invokeStatic "session.clj" 238]
[metabase.server.middleware.session$do_with_current_user invoke "session.clj" 230]
[metabase.server.middleware.session$bind_current_user$fn__44961 invoke "session.clj" 256]
[metabase.server.middleware.session$wrap_current_user_info$fn__44948 invoke "session.clj" 216]
[metabase.server.middleware.session$wrap_session_id$fn__44934 invoke "session.clj" 162]
[metabase.server.middleware.auth$wrap_api_key$fn__70237 invoke "auth.clj" 27]
[ring.middleware.cookies$wrap_cookies$fn__83704 invoke "cookies.clj" 216]
[metabase.server.middleware.misc$add_content_type$fn__34042 invoke "misc.clj" 27]
[metabase.server.middleware.misc$disable_streaming_buffering$fn__34067 invoke "misc.clj" 76]
[ring.middleware.gzip$wrap_gzip$fn__83746 invoke "gzip.clj" 86]
[metabase.server.middleware.misc$bind_request$fn__34070 invoke "misc.clj" 93]
[metabase.server.middleware.ssl$redirect_to_https_middleware$fn__83533 invoke "ssl.clj" 48]
[metabase.server$async_proxy_handler$fn__80077 invoke "server.clj" 71]
[metabase.server.proxy$org.eclipse.jetty.server.handler.AbstractHandler$ff19274a handle nil -1]
[org.eclipse.jetty.server.handler.HandlerWrapper handle "HandlerWrapper.java" 127]
[org.eclipse.jetty.server.Server handle "Server.java" 516]
[org.eclipse.jetty.server.HttpChannel lambda$handle$1 "HttpChannel.java" 388]
[org.eclipse.jetty.server.HttpChannel dispatch "HttpChannel.java" 633]
[org.eclipse.jetty.server.HttpChannel handle "HttpChannel.java" 380]
[org.eclipse.jetty.server.HttpConnection onFillable "HttpConnection.java" 277]
[org.eclipse.jetty.io.AbstractConnection$ReadCallback succeeded "AbstractConnection.java" 311]
[org.eclipse.jetty.io.FillInterest fillable "FillInterest.java" 105]
[org.eclipse.jetty.io.ChannelEndPoint$1 run "ChannelEndPoint.java" 104]
[org.eclipse.jetty.util.thread.strategy.EatWhatYouKill runTask "EatWhatYouKill.java" 338]
[org.eclipse.jetty.util.thread.strategy.EatWhatYouKill doProduce "EatWhatYouKill.java" 315]
[org.eclipse.jetty.util.thread.strategy.EatWhatYouKill tryProduce "EatWhatYouKill.java" 173]
[org.eclipse.jetty.util.thread.strategy.EatWhatYouKill run "EatWhatYouKill.java" 131]
[org.eclipse.jetty.util.thread.ReservedThreadExecutor$ReservedThread run "ReservedThreadExecutor.java" 386]
[org.eclipse.jetty.util.thread.QueuedThreadPool runJob "QueuedThreadPool.java" 883]
[org.eclipse.jetty.util.thread.QueuedThreadPool$Runner run "QueuedThreadPool.java" 1034]
[java.lang.Thread run "Thread.java" 829]],
:cause "Error writing file '/tmp/MYfd=172' (OS errno 28 - No space left on device)",
:message "(conn=1343739) Error writing file '/tmp/MYfd=172' (OS errno 28 - No space left on device)",
:sql-exception-chain
["SQLTransientConnectionException:"
"Message: (conn=1343739) Error writing file '/tmp/MYfd=172' (OS errno 28 - No space left on device)"
"SQLState: HY000"
"Error Code: 3"]}

Hi @asharma4
Have a look here: Metabase throwing "Error writing file '/tmp/MYC3W8tq' (Errcode: 28 - No space left on device)" while connecting to one of MongoDB
You need to make sure that your MySQL server (which you are to run the Metabase application database) has enough disk space to run correctly.
It is difficult to optimize a database and requires tweaking a lot of parameters. Since you are also using Postgres as a data source, then I guess you know how to run that, so have you considered switching to Postgres as the Metabase application database?

Yes Our Mysql DB has enough space.

@asharma4 The error is coming from MySQL. And says there's not enough space in /tmp partition.

We can switch to Postgres, however can you please provide sufficient supporting information for this change as I need to present this to DB team.

Recently from the link ticket that you have provided we have upgraded metabase Mysql version but the issue still persist.

@asharma4 So you are from the same company that posted the other forum topic? Then why not just continue that thread instead of starting a new topic?

I don't understand what you mean by "provide sufficient supporting information". Try searching the internet, then you'll see a lot of people hitting this problem with MySQL (unrelated to Metabase).
Post the output of df -h from the server running MySQL.

  1. You can dump the MySQL application database to H2 with:
    java -jar metabase.jar dump-to-h2 myapp.db
  2. Then you change the application database connection environment variables to Postgres
  3. And then you load the data into Postgres with:
    java -jar metabase.jar load-from-h2 myapp.db
    Similar to a normal migration: https://www.metabase.com/docs/latest/operations-guide/migrating-from-h2.html

It is hardly using 1% but still giving error no space in /tmp

@asharma4 Try asking about this problem in a MySQL specific forum, since it has nothing to do with Metabase. The error is coming from MySQL.