Limit to DataFile size for Cluster TableSpace

[Sajeed AR]

Hi,

We are using the MySQL Cluster 7.4.7 on RedHat Linux. We are facing the following issue. Please see the steps followed and the issue faced below:

Tablespace > 250GB:
- We created a tablespace with size greater than around 250 GB (with only one DataFile)
- created a table in this tablespace
- when we try to insert into this table, the insert is hung up. We are inserting through a Java program with 4 threads. For e.g., if we run the Java program to insert 10000 rows in 4 threads, the insert is hung up after a few inserts. We can see the insert statement in Show Processlist. The Java program hungs up when it attempts to 'Fetch JDBC connection' after inserting a few rows.

- we tried the above with 25 DataFiles of 10GB each too. Still we got the same error.

Tablespace < 250GB:
- If we create a tablespace of size less than 250 GB, the above operation does not have any issue. The program can run as long as the tablespace is full.

We are assuming that there is some issue when we have a tablespace size > 250GB (or around this size). But we do not know the cause or resolution to this. Highly appreciate your inputs on this. Thank you!