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[SPARK-25597] SQL query with limit iterates the whole iterator when WholeStage code generation is enabled - Spark - [issue]
...When SELECT * FROM table LIMIT 1 is executed, the WholeStageCodegenExec generates code that iterates the source iterator completely instead of just first element (per partition). This is a m...    Author: Hannu Kröger , 2018-10-02, 13:00
Scale SASI index - Cassandra - [mail # user]
...You shouldn’t need to. You just scale up and run ”nodetool cleanup” and that will take care of it. Hannu> onmstester onmstester  kirjoitti 18.9.2018 kello 8.52:> > By adding ne...
   Author: Hannu Kröger , 2018-09-18, 07:03
[CASSANDRA-14289] Document sstable tools - Cassandra - [issue]
...Following tools are missing in the documentation of cassandra tools on the documentation site ( sstabledump sstableexpiredblockers ss...    Author: Hannu Kröger , 2018-09-13, 22:38
[expand - 1 more] - [EXTERNAL] full text search on some text columns - Cassandra - [mail # user]
...Does someone know if you can do online upgrade of elassandra? With lucene plugin you cannot really because you need to drop and recreate indexes if lucene has been updated. Hannu> Octavia...
   Author: Hannu Kröger , 2018-08-01, 10:36
Reading cardinality from Statistics.db failed - Cassandra - [mail # user]
...What version of Cassandra are you running? There is a bug in 3.10.0 and certain 3.0.x that occurs in certain conditions and corrupts that file. Hannu> Vitali Dyachuk  kirjoitti 25.7....
   Author: Hannu Kröger , 2018-07-25, 10:02
Compaction out of memory - Cassandra - [mail # user]
...Could the problem be that the process ran out of file handles? Recommendation is to tune that higher than the default. Hannu> onmstester onmstester  kirjoitti 12.7.2018 kello 12.44:&...
   Author: Hannu Kröger , 2018-07-12, 10:47
rebuild on running node - Cassandra - [mail # user]
...You have just some extra data on those machines where you ran rebuild. Compaction will eventually take care of that. Nothing really harmful if you have the disk space available. Hannu> Ra...
   Author: Hannu Kröger , 2018-07-05, 16:26
[expand - 1 more] - Problem with dropped mutations - Cassandra - [mail # user]
...Yes, there are timeouts sometimes but more on the read side. And yes, there are certain data modeling problems which will be soon addressed but we need to keep things steady before we get th...
   Author: Hannu Kröger , 2018-07-02, 07:48
Client ID logging - Cassandra - [mail # user]
...Hmm, I think that by default not but you can create a hook to log that. Create a wrapper for PasswordAuthenticator class for example and use that. Or if you don’t use authentication you can ...
   Author: Hannu Kröger , 2018-05-21, 18:42
Error after 3.1.0 to 3.11.2 upgrade - Cassandra - [mail # user]
...Hi,Did you check replication strategy and amounts of replicas of system_auth keyspace?Hannu> Abdul Patel  kirjoitti 12.5.2018 kello 5.21:> > No applicatiom isnt impacted c...
   Author: Hannu Kröger , 2018-05-12, 05:08