harmony 鸿蒙Distributed KV Store Error Codes

2022-12-22
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Distributed KV Store Error Codes

NOTE

This topic describes only module-specific error codes. For details about universal error codes, see Universal Error Codes.

15100001 Subscription Count Reaches the Limit

Error Message

Over max limits.

Description

The number of subscriptions or the number of opened result sets has reached the limit.

Possible Causes

The number of subscriptions made through on() reaches 8.
The number of result sets opened by getResultSet() reaches 8.

Solution

Cancel the subscriptions that are not required.
Close the result sets that are no longer required.

15100002 Parameter Configuration Changes

Error Message

Open existed database with changed options.

Description

The options configuration changes when getKVStore() is called to obtain a KV store.

Possible Causes

The possible causes are as follows: 1. An existing storeId is used to create a KV store. 2. You want to change the options parameter of a KV store.

Solution

When creating a KV store, do not use a duplicate storeId.
Currently, the options parameter of a KV store cannot be changed. To apply the change, delete the KV store and create a KV store with the required options settings.

15100003 KV Store Corrupted

Error Message

Database corrupted.

Description

The target KV store is corrupted.

Possible Causes

The target KV store is corrupted.

Solution

Restore the KV store from a backup file.
If no backup file is available, delete the corrupted KV store and create a new one.

15100004 Failed to Find Data

Error Message

Not found.

Description

Related data is not found when deleteKVStore(), sync(), or get() is called.

Possible Causes

The possible causes are as follows: 1. The KV store to delete does not exist or has been deleted. 2. The data queried does not exist or has been deleted. 3. The KV store specified for the data synchronization operation does not exist or has been deleted.

Solution