--- title: "Sitecore Commerce 93 Error: No connection is available to service this operation" description: tldr; Free up your disk space I came across this error in Sitecore Content Editor while click on Category Nodes today and our PM ran into a different but related error on the Storefront at the same time. After investigating the logs it became apparent that Sitecore was not able to communicate with the Redis […] --- [Skip to content](https://www.aperturelabs.net/insights/blog/sitecore-commerce-error-no-connection-is-available-to-service-this-operation#main-content) [![Aperture Labs](https://www.aperturelabs.net/hs-fs/hubfs/New-Site-Images-2024/aperture-labs-stack-blue-yellow.png?width=630&height=367&name=aperture-labs-stack-blue-yellow.png "Aperture Labs")](https://www.aperturelabs.net) - Services - [Digital Ecosystem Strategy](https://www.aperturelabs.net/digital-ecosystem-strategy) - [Product Information Management](https://www.aperturelabs.net/product-information-management) - [Commerce & Experience Platforms](https://www.aperturelabs.net/ecommerce) - [Custom Portals & Operational Applications](https://www.aperturelabs.net/custom-portals-and-operational-applications) - Partners - [Inriver](https://www.aperturelabs.net/inriver-pim) - [Optimizely](https://www.aperturelabs.net/optimizely) - [Sitecore](https://www.aperturelabs.net/sitecore) - [Shopify](https://www.aperturelabs.net/shopify-plus) - [BigCommerce](https://www.aperturelabs.net/bigcommerce) - [nopCommerce](https://www.aperturelabs.net/nopcommerce) - [About](https://www.aperturelabs.net/about) - [Our Story](https://www.aperturelabs.net/about) - [Our Team](https://www.aperturelabs.net/leadership-team) - [Insights](https://www.aperturelabs.net/insights) - [Contact](https://www.aperturelabs.net/contact) [ Sai Sumanth Mokkapati ](https://www.aperturelabs.net/insights/author/sai-sumanth-mokkapati) Jan 28, 2021 # Sitecore Commerce 93 Error: No connection is available to service this operation **tldr; **Free up your disk space I came across this error in Sitecore Content Editor while click on Category Nodes today and our PM ran into a different but related error on the Storefront at the same time. After investigating the logs it became apparent that Sitecore was not able to communicate with the Redis cache. Looking at the Redis cache logs revealed that the Redis service kept restarting with the “Redis cannot continue error”. My initial guess was that Redis didn’t have enough memory available and hoped that restarting Redis would resolve it. That didn’t do it. Turns out Redis thought my VM was low on disk space (but it still had 20GB free). After freeing up ~10GB more and restarting the Redis service the issue was resolved. Based on some error messages in the Redis log looks like this is an issue Redis on Windows only. **Storefront Error:** ![](https://www.aperturelabs.net/hubfs/Imported_Blog_Media/image-1024x98.png) **Content Editor Error:** ![](https://www.aperturelabs.net/hubfs/Imported_Blog_Media/Sitecore-Commerce-Redis-Connection-Error-1024x616.png) ## *No connection is available to service this operation: EVAL; IOCP: (Busy=0,Free=1000,Min=8,Max=1000), WORKER: (Busy=1,Free=32766,Min=8,Max=32767), Local-CPU: n/a* **Description: **An unhandled exception occurred during the execution of the current web request. Please review the stack trace for more information about the error and where it originated in the code. **Exception Details: **StackExchange.Redis.RedisConnectionException: No connection is available to service this operation: EVAL; IOCP: (Busy=0,Free=1000,Min=8,Max=1000), WORKER: (Busy=1,Free=32766,Min=8,Max=32767), Local-CPU: n/a **Source Error:** An unhandled exception was generated during the execution of the current web request. Information regarding the origin and location of the exception can be identified using the exception stack trace below. **Stack Trace:** [RedisConnectionException : No connection [is](http://www.google.com/search?q=is+msdn.microsoft.com) available to service this operation : EVAL ; IOCP : (Busy = 0,Free = 1000,Min = 8,Max = 1000 ), WORKER : (Busy = 1,Free = 32766,Min = 8,Max = 32767 ), Local -CPU : n /a ]    StackExchange . Redis . ConnectionMultiplexer . ExecuteSyncImpl (Message message, ResultProcessor` 1 processor, ServerEndPoint server ) + 732    StackExchange . Redis . RedisBase . ExecuteSync (Message message, ResultProcessor` 1 processor, ServerEndPoint server ) + 122    StackExchange . Redis . RedisDatabase . ScriptEvaluate ( String script, RedisKey [ ] keys, RedisValue [ ] values, CommandFlags flags ) + 141    Microsoft . Extensions . Caching . Redis . RedisExtensions . HashMemberGet (IDatabase cache, String key, String [ ] members ) + 188    Microsoft . Extensions . Caching . Redis . RedisCache . GetAndRefresh ( String key, Boolean getData ) + 198    Sitecore . Commerce . Engine . Connect . CommerceRedisCacheStore . Get ( String key ) + 99    Sitecore . Framework . Caching .< ;Get > ;d__14 . MoveNext ( ) in C :\BA\f77fbdb800cd9863\src\Sitecore . Framework . Caching\Cache . cs : 60 [AggregateException : One or more errors occurred . ]     System.Threading . Tasks . Task` 1 . GetResultCore (Boolean waitCompletionNotification ) + 4602897    Sitecore . Commerce . Engine . Connect . CachingRepository . GetCacheEntry ( String cacheEntryKey ) + 121    Sitecore . Commerce . Engine . Connect . DataProvider . CatalogRepository . GetEntityFromCache ( String mixId, String language, Int32 version ) + 222    Sitecore . Commerce . Engine . Connect . DataProvider . CatalogRepository . GetEntityByMappingEntry (MappingEntry mappingEntry, Nullable` 1 version, Boolean ignoreCaching ) + 116    Sitecore . Commerce . Engine . Connect . DataProvider . CatalogRepository . GetItemDefinition (Database database, MappingEntry mappingEntry, String catalogName, Boolean isVariant ) + 158    Sitecore . Commerce . Engine . Connect . DataProvider . ReadOnlyCatalogDataProvider . GetItemDefinition (ID itemId, CallContext context ) + 956    Sitecore . Data . DataProviders . DataProvider . GetItemDefinition (ID itemID, CallContext context, DataProviderCollection providers ) + 156    Sitecore . Data . DataSource . GetItemInformation (ID itemID ) + 88    Sitecore . Data . DataSource . GetParentID (ID itemID ) + 22    Sitecore . Nexus . Data . DataCommands . GetParentCommand .‪‪‬​‍‫‎‍‫‏‫‫‫‫‮​‫‎‬‭‍‌‮‮ (Item ) + 187    Sitecore . Data . Engines . EngineCommand` 2 . Execute ( ) + 93    Sitecore . Data . Managers . ItemProvider . GetParent (Item item ) + 69    Sitecore . Data . Managers . ItemProvider . GetParent (Item item, SecurityCheck securityCheck ) + 53    Sitecore . Data . ItemPath . DoGetPath (Item currentItem, String separator, ItemPathType type, Item root, Int32 level ) + 388    Sitecore . Data . ItemPath . DoGetPath (Item currentItem, String separator, ItemPathType type ) + 262    Sitecore . Data . ItemPath . DoGetPath (Item currentItem, String from, String separator, ItemPathType type ) + 110    Sitecore . Data . ItemPath . GetPath (Item currentItem, String from, String separator, ItemPathType type ) + 100    Sitecore . Data . ItemPath . get_LongID ( ) + 45    Sitecore . Caching . AccessResultCache . GetKey (ISecurable entity, Account account, AccessRight accessRight, PropagationType propagationType, Boolean includeAdditionalParameters ) + 67    Sitecore . Caching . AccessResultCache . AddRecord (ISecurable entity, Account account, AccessRight accessRight, PropagationType propagationType, AccessResult accessResult ) + 101    Sitecore . Buckets . Security . BucketAuthorizationProvider . AddAccessResultToCache (ISecurable entity, Account account, AccessRight accessRight, AccessResult accessResult, PropagationType propagationType ) + 136    Sitecore . Security . AccessControl . AuthorizationProvider . GetAccess (ISecurable entity, Account account, AccessRight accessRight ) + 233    Sitecore . Security . AccessControl . DefaultAuthorizationManager . GetAccess (ISecurable entity, Account account, AccessRight accessRight ) + 106    Sitecore . Security . AccessControl . DefaultAuthorizationManager . IsAllowed (ISecurable entity, AccessRight right, Account account ) + 105    Sitecore . Security . AccessControl . ItemAccess . CanRead ( ) + 63    Sitecore . Data . Managers . ItemProvider . HasChildren (Item item, SecurityCheck securityCheck ) + 338    Sitecore . Shell . Framework . Commands . ContentEditor . Subitems . QueryState (CommandContext context ) + 76    Sitecore . Shell . Framework . Commands . CommandManager . QueryState (Command command, CommandContext context ) + 37    Sitecore . Web . UI . WebControls . Ribbons . Ribbon . FillParamsFromCommand (CommandContext commandContext, RibbonCommandParams ribbonCommandParams ) + 221    Sitecore . Web . UI . WebControls . Ribbons . Ribbon . GetCommandParameters (Item controlItem, CommandContext commandContext ) + 79    Sitecore . Web . UI . WebControls . Ribbons . Ribbon . RenderLargeGalleryButton (HtmlTextWriter output, Item button, CommandContext commandContext ) + 96    Sitecore . Web . UI . WebControls . Ribbons . Ribbon . RenderButton (HtmlTextWriter output, Item button, CommandContext commandContext ) + 504    Sitecore . Web . UI . WebControls . Ribbons . Ribbon . RenderChunk (HtmlTextWriter output, Item chunk, CommandContext commandContext ) + 348    Sitecore . Web . UI . WebControls . Ribbons . Ribbon . RenderChunk (HtmlTextWriter output, Item chunk, CommandContext commandContext, Boolean isContextual, String id ) + 244    Sitecore . Web . UI . WebControls . Ribbons . Ribbon . RenderChunk (HtmlTextWriter output, Item chunk, CommandContext commandContext, Boolean isContextual ) + 161    Sitecore . Web . UI . WebControls . Ribbons . Ribbon . RenderChunks (HtmlTextWriter output, Item strip, CommandContext commandContext, Boolean isContextual ) + 432    Sitecore . Web . UI . WebControls . Ribbons . Ribbon . RenderStrips (HtmlTextWriter output, Item ribbon, Boolean isContextual, ListString visibleStripList ) + 1622    Sitecore . Web . UI . WebControls . Ribbons . Ribbon . RenderStrips (HtmlTextWriter output, Item defaultRibbon, Item contextualRibbon, ListString visibleStripList ) + 162    Sitecore . Web . UI . WebControls . Ribbons . Ribbon . Render (HtmlTextWriter output ) + 740     System.Web.UI . Control . RenderControlInternal (HtmlTextWriter writer, ControlAdapter adapter ) + 132    Sitecore . Web . HtmlUtil . RenderControl (Control ctl ) + 80    Sitecore . Shell . Applications . ContentManager . ContentEditorForm . UpdateRibbon (Item folder, Boolean isCurrentItemChanged, Boolean showEditor ) + 560    Sitecore . Shell . Applications . ContentManager . ContentEditorForm . Update ( ) + 582    Sitecore . Shell . Applications . ContentManager . ContentEditorForm . OnPreRendered (EventArgs e ) + 192 [TargetInvocationException : Exception has been thrown by the target of an invocation . ]     System . RuntimeMethodHandle . InvokeMethod ( Object target, Object [ ] arguments, Signature sig, Boolean constructor ) + 0     System.Reflection . RuntimeMethodInfo . UnsafeInvokeInternal ( Object obj, Object [ ] parameters, Object [ ] arguments ) + 132     System.Reflection . RuntimeMethodInfo . Invoke ( Object obj, BindingFlags invokeAttr, Binder binder, Object [ ] parameters, CultureInfo culture ) + 146    Sitecore . Reflection . ReflectionUtil . InvokeMethod (MethodInfo method, Object [ ] parameters, Object obj ) + 89    Sitecore . Shell . Applications . ContentManager . ContentEditorPage . OnPreRender (EventArgs e ) + 143     System.Web.UI . Control . PreRenderRecursiveInternal ( ) + 200     System.Web.UI . Page . ProcessRequestMain (Boolean includeStagesBeforeAsyncPoint, Boolean includeStagesAfterAsyncPoint ) + 7479 **Redis Error** Redis can not continue. Exiting. [3736] 28 Jan 19:13:27.367 # fork operation failed [3736] 28 Jan 19:13:27.523 # Background saving terminated by signal 1 [3736] 28 Jan 19:13:33.008 * 1 changes in 900 seconds. Saving… [3736] 28 Jan 19:13:33.071 * Background saving started by pid 18168 [18168] 28 Jan 19:13:33.352 # The Windows version of Redis reserves heap memory from the system paging file for sharing with the forked process used for persistence operations.At this time there is insufficient contiguous free space available in the system paging file. You may increase the size of the system paging file. Sometimes a reboot will defragment the system paging file sufficiently for this operation to complete successfully. --- **Version Information:** Microsoft .NET Framework Version:4.0.30319; ASP.NET Version:4.8.4250.0 [blog](https://www.aperturelabs.net/insights/tag/blog)       ## Related Posts #### [Sitecore Commerce-9.3- Add Company Name to Checkout Address](https://www.aperturelabs.net/insights/blog/sitecore-commerce-9-3-add-company-name-to-checkout-address) [Sai Sumanth Mokkapati](https://www.aperturelabs.net/insights/author/sai-sumanth-mokkapati) Address is saved as a sitecore commerce party in the cart/order json. We need to extend a few cart m... 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