Details
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Bug
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Status: Closed (View Workflow)
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Major
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Resolution: Won't Fix
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1.5.2
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None
Description
If ColumnStore is installed with MariaDB Community Server 10.5.4, then mysqld --bootstrap will hang when you run mysql_install_db if the ColumnStore processes aren't running.
For example, we can see that ColumnStore is installed:
$ sudo cat /etc/mysql/mariadb.conf.d/columnstore.cnf
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[mysqld]
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plugin-load-add=ha_columnstore.so
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plugin-maturity=beta
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# Enable compression by default on create, set to NONE to turn off
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#columnstore_compression_type=SNAPPY
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# ColumnStore local query flag
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#columnstore_local_query=0
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#columnstore_diskjoin_smallsidelimit=0
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#columnstore_diskjoin_largesidelimit=0
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#columnstore_diskjoin_bucketsize=100
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#columnstore_um_mem_limit=0
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# Required for Schema Sync
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#server-id = 1
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#log_bin
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# Uncomment for this UM to apply slave DML on ColumnStore tables
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#columnstore_replication_slave=ON
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And we can see that the ColumnStore processes are not running:
$ sudo systemctl status mariadb-columnstore
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● mariadb-columnstore.service - mariadb-columnstore
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Loaded: loaded (/lib/systemd/system/mariadb-columnstore.service; enabled; vendor preset: enabled)
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Active: inactive (dead) since Mon 2020-06-22 23:58:42 UTC; 11s ago
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Process: 19504 ExecStop=/usr/bin/mariadb-columnstore-stop.sh (code=exited, status=0/SUCCESS)
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Process: 19039 ExecStart=/usr/bin/mariadb-columnstore-start.sh (code=exited, status=0/SUCCESS)
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Main PID: 19039 (code=exited, status=0/SUCCESS)
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So let's say that we run mysql_install_db, like this:
$ sudo mysql_install_db --user=mysql --basedir=/usr/ --datadir=/var/lib/mysql/
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It will fail with unhelpful error messages:
Installing MariaDB/MySQL system tables in '/var/lib/mysql/' ...
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2020-06-23 0:04:07 0 [Warning] Plugin 'Columnstore' is of maturity level beta while the server is stable
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2020-06-23 0:04:07 0 [Warning] Plugin 'COLUMNSTORE_COLUMNS' is of maturity level beta while the server is stable
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2020-06-23 0:04:07 0 [Warning] Plugin 'COLUMNSTORE_TABLES' is of maturity level beta while the server is stable
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2020-06-23 0:04:07 0 [Warning] Plugin 'COLUMNSTORE_FILES' is of maturity level beta while the server is stable
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2020-06-23 0:04:07 0 [Warning] Plugin 'COLUMNSTORE_EXTENTS' is of maturity level beta while the server is stable
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200623 0:04:07 Columnstore: Started; Version: 1.5.2-1
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DBRM::send_recv caught: InetStreamSocket::connect: connect() error: Connection refused to: InetStreamSocket: sd: 37 inet: 127.0.0.1 port: 8616
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DBRM::send_recv caught: InetStreamSocket::connect: connect() error: Connection refused to: InetStreamSocket: sd: 37 inet: 127.0.0.1 port: 8616
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DBRM: SessionManager::sysCatVerID(): network error
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DBRM::send_recv caught: InetStreamSocket::connect: connect() error: Connection refused to: InetStreamSocket: sd: 37 inet: 127.0.0.1 port: 8616
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DBRM::send_recv caught: InetStreamSocket::connect: connect() error: Connection refused to: InetStreamSocket: sd: 37 inet: 127.0.0.1 port: 8616
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ERROR: 1815 Internal error: Cannot execute the statement. DBRM is read only!
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2020-06-23 0:04:08 0 [ERROR] Aborting
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It would be more user friendly to print some kind of message like this instead:
ERROR: 1815 Internal error: Cannot communicate with MariaDB ColumnStore processes. Check the status of the processes by executing "systemctl status mariadb-columnstore."
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Attachments
Issue Links
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