Bucketfsd can consume all the RAM and crash the node
Details
| Detail name | Value |
|---|---|
| Changelog Number | 8249 |
| Type | Bug |
| Status | Resolved |
| Affected Versions | Exasol 6.1.3, Exasol 6.1.4 |
| Fix Versions | Exasol 6.1.7, Exasol 6.2.2 |
| Resolution Date | 2019-10-10 |
Background
The BucketFS file system is a synchronous file system available within the Exasol cluster. Each cluster node can connect to this service (through the http interface) and will see exactly the same content.
Find more information on this in our documentation: https://docs.exasol.com/database_concepts/udf_scripts/synchronous_cfs_bucketfs.htm
Problem
During extreme system load, the BucketFS service may misbehave and use up to 40 GiB of RAM, resulting in bad database performance or even service interruption.
Workaround
Temporary work around about this is to disable synchronization by removing the all BucketFS ports; after that, data can not be uploaded/downloaded any more, but all contents will still be available to the database service.
To manually fix this problem in 6.1.3 or 6.1.4 please contact our support.
