Add Warning About File Descriptor Usage

provider/provider.go

@@ -5,6 +5,7 @@ import (
 	"embed"
 	"errors"
 	"fmt"
+	"strings"
 	"sync"
 	"sync/atomic"
 
@@ -259,6 +260,11 @@ func (p *Provider) collectExecutionDiagnostics(client schema.ClientMeta, exec sc
 			diagnostics = append(diagnostics, dd...)
 			continue
 		}
+
+		if strings.Contains(e.Error(), ": socket: too many open files") {
+			diagnostics = append(diagnostics, diag.FromError(e.Err, diag.WARNING, diag.THROTTLE, exec.ResourceName, e.Error(), "try increasing number of available file descriptors via `ulimit -n 10240` or by increasing timeout via provider specific parameters"))
+			continue
+		}
 		// if error wasn't classified by provider mark it as error
 		diagnostics = append(diagnostics, diag.FromError(e.Err, diag.ERROR, diag.RESOLVING, exec.ResourceName, e.Error(), ""))
 	}

provider/schema/execution.go

@@ -5,6 +5,7 @@ import (
 	"fmt"
 	"reflect"
 	"runtime/debug"
+	"strings"
 	"sync/atomic"
 	"time"
 
@@ -195,11 +196,21 @@ func (e ExecutionData) callTableResolve(ctx context.Context, client ClientMeta,
 			close(res)
 		}()
 		err := e.Table.Resolver(ctx, client, parent, res)
-		if err != nil && e.Table.IgnoreError != nil && e.Table.IgnoreError(err) {
-			client.Logger().Warn("ignored an error", "err", err, "table", e.Table.Name)
-			// add partial fetch error, this will be passed in diagnostics, although it was ignored
-			_ = e.checkPartialFetchError(err, parent, "table resolver ignored error")
-			return
+		if err != nil {
+			if e.Table.IgnoreError != nil && e.Table.IgnoreError(err) {
+				client.Logger().Warn("ignored an error", "err", err, "table", e.Table.Name)
+				// add partial fetch error, this will be passed in diagnostics, although it was ignored
+				_ = e.checkPartialFetchError(err, parent, "table resolver ignored error")
+				return
+			}
+
+			// Not sure if this should be before we check for an IgnoredError as it is a unique error that we know about locally
+			if strings.Contains(err.Error(), ": socket: too many open files") {
+				client.Logger().Warn("try increasing number of available file descriptors via `ulimit -n 10240` or by increasing timeout via provider specific parameters")
+				_ = e.checkPartialFetchError(err, parent, "table resolver ignored error")
+				return
+
+			}
 		}
 		resolverErr = err
 	}()