# Help! Partition Creation Failed

When partitioning tables containing large volumes of data or Base64-encoded content, the partition creation process can fail mid-way due to various issues, such as:

* Application freezes or crashes
* Transient network errors
* Resource exhaustion (e.g. memory or CPU spikes)
* Timeouts or I/O bottlenecks

**These interruptions can leave partitions in an incomplete or inconsistent state.**

The Partition Creation process is designed to be incremental:

* Records are copied from Source to Target Partition in an ID-based ordering (lexicographical).
* After each batch of records is copied from Source to Target, the last read Salesforce ID is persisted in the Database.
  * See the *CopyForceTablePartitionLoadTask* database table.

**Note: CopyStorm will refuse to replicate data to a table if it has a Partition Creation In-Progress**

**If partition creation fails, you can resume the process by navigating back to the Partition Editor Tool. You’ll see the following dialog appear if a partition creation is in-progress:**

![](/files/mzfkp29nraFqAQjV54Mi)

From this point, you’ll have the option to:

* Resume the Partition Creation process
  * This will start copying data from Source to Target from the Last Read Salesforce ID.
* Cancel the Partition Creation process
  * **Note: Cancelling will not remove data already copied if the Source is S3 or a Folder**
  * Cancelling a JDBC Partition Creation will delete the new JDBC Partition.
  * **Source data will never be deleted during the cancellation process.**

![](/files/hpMRVp3nXeAMIApC7U6h)


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