Patrick Bossman

I would like to report an issue in page https://manager.docs.scylladb.com/branch-3.2/restore/index ### Problem This comment is on the overall restore procedure, and changes may be on this page or others. When...

Two common restore scenarios: 1. Restore into target that is unavailable until restore completes (max out restore and repair to restore as fast as possible) 2. Restore into target that...

Improve documentation surrounding tuning and scaling scylla-migrator for DynamoDB migration

3

**Background** With the prior version of DynamoDB -> Alternator, scanSegments translated to partitions. The recommendation for scanSegments was to take total bytes of source table from DynamoDB describe, and divide...

I was attempting to up the partitions, and I got it to 5, but I'm getting errors now. - Spark-worker failed. - executor heartbeat failed time spark-submit --class com.scylladb.migrator.Migrator --master...

Migration from DynamoDB falls back to single partition

14

Using latest version of scylla-migrator for DynamodDB -> Alternator migration, I receive an error, and it falls back to processing a single partition instead of scanSegments. time spark-submit --class com.scylladb.migrator.Migrator...

DynamoDB migration is unable to read credentials.

12

Attempted to migrate from DynamoDB I ran aws configure, and from the master and workers, I am able to list DynamoDB tables: Source dynamodb: aws dynamodb list-tables { "TableNames": [...

DynamoDB to Scylla Alternator - high parallel settings with little source data errors out

1

Source dynamodb, target scylla alternator. Using higher concurrency settings on source with very little data errors out (no data copied): config.yaml scanSegments: 256 maxMapTasks: 8 ``` 24/02/19 19:07:15 WARN TaskSetManager:...

There are different mandatory and optional input parameters to a scylla migration. It would be useful at the beginning of migration to dump out input parameters and actual parameters used....

It would be useful to have the following progress information during migrations: 1. Number for items (dynamodb/alternator) read 2. Number of items inserted in target (dynamodb/alternator) 3. If we implement...

For DynamoDB to alternator migrations make region specification mandatory

2

If region is not specified, it can be ambiguous which region scylla-migrator chooses as a source. When performing a migration, it is important the source is explicitly specified and honored,...