lablup · ironAiken2 · Nov 25, 2025
diff --git a/react/src/components/ComputeSessionNodeItems/SessionActionButtons.tsx b/react/src/components/ComputeSessionNodeItems/SessionActionButtons.tsx
@@ -54,6 +54,9 @@ interface SessionActionButtonsProps {
 }
 
 const isActive = (session: SessionActionButtonsFragment$data) => {
+  if (session?.type === 'system') {
+    return session?.status === 'RUNNING';
+  }
   return !['TERMINATED', 'CANCELLED', 'TERMINATING'].includes(
     session?.status || '',
   );
@@ -283,9 +286,7 @@ const SessionActionButtons: React.FC<SessionActionButtonsProps> = ({
           <Tooltip title={t('data.explorer.RunSSH/SFTPserver')}>
             <Button
               type="primary"
-              disabled={
-                !isAppSupported(session) || !isActive(session) || !isOwner
-              }
+              disabled={!isActive(session) || !isOwner}
               size={size}
               icon={<BAISftpIcon />}
               onClick={() => {

diff --git a/react/src/components/FileBrowserButton.tsx b/react/src/components/FileBrowserButton.tsx
@@ -11,12 +11,10 @@ import { useTranslation } from 'react-i18next';
 import { graphql, useFragment } from 'react-relay';
 import { FileBrowserButtonFragment$key } from 'src/__generated__/FileBrowserButtonFragment.graphql';
 import { useCurrentDomainValue, useSuspendedBackendaiClient } from 'src/hooks';
-import { useSetBAINotification } from 'src/hooks/useBAINotification';
 import { useCurrentProjectValue } from 'src/hooks/useCurrentProject';
 import { useDefaultFileBrowserImageWithFallback } from 'src/hooks/useDefaultImagesWithFallback';
 import { useMergedAllowedStorageHostPermission } from 'src/hooks/useMergedAllowedStorageHostPermission';
 import {
-  startSessionErrorCodes,
   StartSessionWithDefaultValue,
   useStartSession,
 } from 'src/hooks/useStartSession';
@@ -48,7 +46,6 @@ const FileBrowserButton: React.FC<FileBrowserButtonProps> = ({
   const { getErrorMessage } = useErrorMessageResolver();
   const { startSessionWithDefault, upsertSessionNotification } =
     useStartSession();
-  const { upsertNotification } = useSetBAINotification();
 
   const filebrowserImage = useDefaultFileBrowserImageWithFallback();
 
@@ -102,6 +99,8 @@ const FileBrowserButton: React.FC<FileBrowserButtonProps> = ({
             return;
           }
           const fileBrowserFormValue: StartSessionWithDefaultValue = {
+            // If the resource setting is not included when the session is created,
+            // it is created with the value determined by the server.
             sessionName: `filebrowser-${vfolder.row_id}`,
             sessionType: 'interactive',
             // use default file browser image if configured and allowed
@@ -112,17 +111,14 @@ const FileBrowserButton: React.FC<FileBrowserButtonProps> = ({
             cluster_mode: 'single-node',
             cluster_size: 1,
             mount_ids: [vfolder.row_id?.replaceAll('-', '') || ''],
-            resource: {
-              cpu: 1,
-              mem: '0.5g',
-            },
           };
 
           await startSessionWithDefault(fileBrowserFormValue)
             .then((results) => {
               if (results?.fulfilled && results.fulfilled.length > 0) {
                 upsertSessionNotification(results.fulfilled, [
                   {
+                    key: `filebrowser-${vfolder.row_id}`,
                     extraData: {
                       appName: 'filebrowser',
                     } as PrimaryAppOption,
@@ -131,22 +127,10 @@ const FileBrowserButton: React.FC<FileBrowserButtonProps> = ({
               }
               if (results?.rejected && results.rejected.length > 0) {
                 const error = results.rejected[0].reason;
-                if (
-                  _.includes(
-                    error.message,
-                    startSessionErrorCodes.DUPLICATED_SESSION,
-                  )
-                ) {
-                  upsertNotification({
-                    key: `filebrowser-${vfolder.row_id}`,
-                    open: true,
-                  });
-                } else {
-                  modal.error({
-                    title: error?.title,
-                    content: getErrorMessage(error),
-                  });
-                }
+                modal.error({
+                  title: error?.title,
+                  content: getErrorMessage(error),
+                });
               }
             })
             .catch((error) => {

diff --git a/react/src/components/SFTPServerButton.tsx b/react/src/components/SFTPServerButton.tsx
@@ -9,15 +9,13 @@ import { useTranslation } from 'react-i18next';
 import { graphql, useFragment } from 'react-relay';
 import { SFTPServerButtonFragment$key } from 'src/__generated__/SFTPServerButtonFragment.graphql';
 import { useCurrentDomainValue, useSuspendedBackendaiClient } from 'src/hooks';
-import { useSetBAINotification } from 'src/hooks/useBAINotification';
 import {
   useCurrentProjectValue,
   useResourceGroupsForCurrentProject,
 } from 'src/hooks/useCurrentProject';
 import { useDefaultSystemSSHImageWithFallback } from 'src/hooks/useDefaultImagesWithFallback';
 import { useMergedAllowedStorageHostPermission } from 'src/hooks/useMergedAllowedStorageHostPermission';
 import {
-  startSessionErrorCodes,
   StartSessionWithDefaultValue,
   useStartSession,
 } from 'src/hooks/useStartSession';
@@ -53,10 +51,8 @@ const SFTPServerButton: React.FC<SFTPServerButtonProps> = ({
   const { getErrorMessage } = useErrorMessageResolver();
   const { startSessionWithDefault, upsertSessionNotification } =
     useStartSession();
-  const { upsertNotification } = useSetBAINotification();
 
-  const { systemSSHImage, systemSSHImageInfo } =
-    useDefaultSystemSSHImageWithFallback();
+  const { systemSSHImage } = useDefaultSystemSSHImageWithFallback();
 
   const vfolder = useFragment(
     graphql`
@@ -110,18 +106,9 @@ const SFTPServerButton: React.FC<SFTPServerButtonProps> = ({
           />
         }
         action={async () => {
-          const resource: StartSessionWithDefaultValue['resource'] = {
-            cpu:
-              _.toNumber(
-                _.find(systemSSHImageInfo?.resource_limits, { key: 'cpu' })
-                  ?.min,
-              ) || 2,
-            mem:
-              _.find(systemSSHImageInfo?.resource_limits, { key: 'mem' })
-                ?.min || '0.5g',
-          };
-
           const sftpSessionConf: StartSessionWithDefaultValue = {
+            // If the resource setting is not included when the session is created,
+            // it is created with the value determined by the server.
             sessionName: `sftp-${vfolder?.row_id}`,
             sessionType: 'system',
             // use default system SSH image if configured and allowed
@@ -142,10 +129,6 @@ const SFTPServerButton: React.FC<SFTPServerButtonProps> = ({
             cluster_size: 1,
             mount_ids: [vfolder?.row_id?.replaceAll('-', '') || ''],
             resourceGroup: sftpScalingGroupByCurrentProject?.[0],
-            resource: {
-              cpu: resource.cpu < 2 ? 2 : resource.cpu,
-              mem: resource.mem,
-            },
           };
 
           await startSessionWithDefault(sftpSessionConf)
@@ -160,22 +143,10 @@ const SFTPServerButton: React.FC<SFTPServerButtonProps> = ({
               }
               if (results?.rejected && results.rejected.length > 0) {
                 const error = results.rejected[0].reason;
-                if (
-                  _.includes(
-                    error.message,
-                    startSessionErrorCodes.DUPLICATED_SESSION,
-                  )
-                ) {
-                  upsertNotification({
-                    key: `sftp-${vfolder?.row_id}`,
-                    open: true,
-                  });
-                } else {
-                  modal.error({
-                    title: error?.title,
-                    content: getErrorMessage(error),
-                  });
-                }
+                modal.error({
+                  title: error?.title,
+                  content: getErrorMessage(error),
+                });
               }
             })
             .catch((error) => {

diff --git a/react/src/components/SessionFormItems/ResourceAllocationFormItems.tsx b/react/src/components/SessionFormItems/ResourceAllocationFormItems.tsx
@@ -138,6 +138,7 @@ const ResourceAllocationFormItems: React.FC<
     accessible_scaling_groups,
     (group) => group?.name === currentResourceGroupInForm,
   );
+  const currentResourceValue = Form.useWatch(['resource']);
   const currentImage = Form.useWatch(['environments', 'image'], {
     form,
     preserve: true,
@@ -205,14 +206,19 @@ const ResourceAllocationFormItems: React.FC<
   }, [currentImage, acceleratorSlotsInRG, currentEnvironmentManual]);
 
   useEffect(() => {
+    if (!currentResourceValue) {
+      form.setFieldsValue({
+        allocationPreset: 'auto-select',
+      });
+    }
     if (supportedAcceleratorTypesInRGByImage?.length === 0) {
       form.setFieldsValue({
         resource: {
           accelerator: 0,
         },
       });
     }
-  }, [supportedAcceleratorTypesInRGByImage, form]);
+  }, [supportedAcceleratorTypesInRGByImage, form, currentResourceValue]);
 
   const sessionSliderLimitAndRemaining = {
     min: 1,

diff --git a/react/src/hooks/useStartSession.tsx b/react/src/hooks/useStartSession.tsx
@@ -31,10 +31,6 @@ interface CreateSessionInfo {
   resources: SessionResources;
 }
 
-export const startSessionErrorCodes = {
-  DUPLICATED_SESSION: 'DUPLICATED_SESSION',
-};
-
 export const SESSION_LAUNCHER_NOTI_PREFIX = 'session-launcher:';
 
 // Field names that have default values in SessionLauncherFormValue
@@ -136,7 +132,7 @@ export const useStartSession = () => {
         baiClient._config.default_session_environment,
       ),
     }),
-    ...RESOURCE_ALLOCATION_INITIAL_FORM_VALUES,
+    ..._.omit(RESOURCE_ALLOCATION_INITIAL_FORM_VALUES, ['resource']),
     resourceGroup: currentGlobalResourceGroup || undefined,
   };
 
@@ -214,26 +210,30 @@ export const useStartSession = () => {
 
         config: {
           // Resource allocation
-          resources: {
-            cpu: values.resource.cpu,
-            mem: values.resource.mem,
-            // Add accelerator only if specified
-            ...(values.resource?.acceleratorType &&
-            values.resource?.accelerator &&
-            values.resource?.accelerator > 0
-              ? {
-                  [values.resource.acceleratorType]:
-                    values.resource.accelerator,
-                }
-              : undefined),
-          },
+          ...(values?.resource && {
+            resources: {
+              cpu: values?.resource?.cpu,
+              mem: values?.resource?.mem,
+              // Add accelerator only if specified
+              ...(values.resource?.acceleratorType &&
+              values.resource?.accelerator &&
+              values.resource?.accelerator > 0
+                ? {
+                    [values.resource.acceleratorType]:
+                      values.resource.accelerator,
+                  }
+                : undefined),
+            },
+          }),
           scaling_group: values.owner?.enabled
             ? values.owner.project
             : values.resourceGroup,
-          resource_opts: {
-            shmem: values.resource.shmem,
-            // allow_fractional_resource_fragmentation can be added here if needed
-          },
+          ...(values?.resource && {
+            resource_opts: {
+              shmem: values?.resource?.shmem,
+              // allow_fractional_resource_fragmentation can be added here if needed
+            },
+          }),
 
           // Storage configuration
           [supportsMountById ? 'mount_ids' : 'mounts']: values.mount_ids,
@@ -277,21 +277,12 @@ export const useStartSession = () => {
         .createIfNotExists(
           sessionInfo.kernelName,
           formattedSessionName,
-          sessionInfo.resources,
+          sessionInfo?.resources,
           undefined,
           sessionInfo.architecture,
         )
         .then(
           (res: { created: boolean; status: string; sessionId: string }) => {
-            // When session is already created with the same name, the status code
-            // is 200, but the response body has 'created' field as false.
-            // For such cases, we throw an error to be handled by using component.
-            if (!res?.created) {
-              const error = new Error(
-                startSessionErrorCodes.DUPLICATED_SESSION,
-              );
-              throw error;
-            }
             return res;
           },
         )

diff --git a/react/src/pages/SessionLauncherPage.tsx b/react/src/pages/SessionLauncherPage.tsx
@@ -277,7 +277,7 @@ const SessionLauncherPage = () => {
     // eslint-disable-next-line react-hooks/exhaustive-deps
   }, []);
 
-  const mergedInitialValues = useMemo(() => {
+  const mergedInitialValues: SessionLauncherFormValue = useMemo(() => {
     return _.merge({}, defaultFormValues, formValuesFromQueryParams);
   }, [defaultFormValues, formValuesFromQueryParams]);