> For the complete documentation index, see [llms.txt](https://learn.capstorm.com/llms.txt). Markdown versions of documentation pages are available by appending `.md` to page URLs; this page is available as [Markdown](https://learn.capstorm.com/reference/copystorm-medic/partition-editor/help-partition-creation-failed.md).

# 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:**

![](https://4057376488-files.gitbook.io/~/files/v0/b/gitbook-x-prod.appspot.com/o/spaces%2FsbSqfKw3vSfr8qwXao4j%2Fuploads%2Fgit-blob-444f8a05a65e373344363eccf820f22b2ae73db0%2Fee37b135-PartitionCreationInProgress_Screen1.png?alt=media)

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.**

![](https://4057376488-files.gitbook.io/~/files/v0/b/gitbook-x-prod.appspot.com/o/spaces%2FsbSqfKw3vSfr8qwXao4j%2Fuploads%2Fgit-blob-be7d08bfd784ddaca50f70706c355d90b761be05%2Fc9879db7-PartitionCreationInProgress_Screen2.png?alt=media)