fix: datalake memory leak fixes

Signed-off-by: Alexander Onnikov <Alexander.Onnikov@xored.com>

server/datalake/src/client.ts

@@ -119,7 +119,6 @@ export class DatalakeClient {
       if (err.name === 'NotFoundError') {
         return undefined
       }
-      console.error('failed to get object', { workspace, objectName, err })
       throw err
     }
 
@@ -151,7 +150,6 @@ export class DatalakeClient {
       if (err.name === 'NotFoundError') {
         return undefined
       }
-      console.error('failed to get partial object', { workspace, objectName, err })
       throw err
     }
 
@@ -180,7 +178,6 @@ export class DatalakeClient {
       if (err.name === 'NotFoundError') {
         return
       }
-      console.error('failed to stat object', { workspace, objectName, err })
       throw err
     }
 
@@ -205,7 +202,6 @@ export class DatalakeClient {
       })
     } catch (err: any) {
       if (err.name !== 'NotFoundError') {
-        console.error('failed to delete object', { workspace, objectName, err })
         throw err
       }
     }
@@ -230,19 +226,14 @@ export class DatalakeClient {
       }
     }
 
-    try {
-      if (size === undefined || size < 64 * 1024 * 1024) {
-        return await ctx.with('direct-upload', {}, (ctx) =>
-          this.uploadWithFormData(ctx, workspace, objectName, stream, { ...params, size })
-        )
-      } else {
-        return await ctx.with('multipart-upload', {}, (ctx) =>
-          this.uploadWithMultipart(ctx, workspace, objectName, stream, { ...params, size })
-        )
-      }
-    } catch (err) {
-      console.error('failed to put object', { workspace, objectName, err })
-      throw err
+    if (size === undefined || size < 64 * 1024 * 1024) {
+      return await ctx.with('direct-upload', {}, (ctx) =>
+        this.uploadWithFormData(ctx, workspace, objectName, stream, { ...params, size })
+      )
+    } else {
+      return await ctx.with('multipart-upload', {}, (ctx) =>
+        this.uploadWithMultipart(ctx, workspace, objectName, stream, { ...params, size })
+      )
     }
   }
 

services/datalake/pod-datalake/src/handlers/blob.ts

@@ -85,6 +85,10 @@ export async function handleBlobGet (
   res.status(status)
 
   pipeline(blob.body, res, (err) => {
+    if (!blob.body.destroyed) {
+      blob.body.destroy()
+    }
+
     if (err != null) {
       // ignore abort errors to avoid flooding the logs
       if (err.name === 'AbortError' || err.code === 'ERR_STREAM_PREMATURE_CLOSE') {
@@ -98,10 +102,6 @@ export async function handleBlobGet (
       }
     }
   })
-
-  req.on('close', () => {
-    blob.body.destroy()
-  })
 }
 
 export async function handleBlobHead (

services/datalake/pod-datalake/src/handlers/image.ts

@@ -117,7 +117,9 @@ export async function handleImageGet (
     tempDir.rm(tmpFile, outFile)
   }
 
+  req.on('error', cleanup)
   req.on('close', cleanup)
+  res.on('error', cleanup)
   res.on('finish', cleanup)
 
   const blob = await datalake.get(ctx, workspace, name, {})
@@ -165,7 +167,7 @@ async function runPipeline (
   let pipeline: sharp.Sharp | undefined
 
   try {
-    pipeline = sharp(inFile)
+    pipeline = sharp(inFile, { sequentialRead: true })
 
     // auto orient image based on exif to prevent resize use wrong orientation
     pipeline = pipeline.rotate()
@@ -228,25 +230,21 @@ function getImageTransformParams (accept: string, transform: string): ImageTrans
 async function writeTempFile (path: string, stream: Readable): Promise<void> {
   const outp = createWriteStream(path)
 
-  stream.pipe(outp)
-
   await new Promise<void>((resolve, reject) => {
-    stream.on('error', (err) => {
-      stream.destroy()
-      outp.destroy()
-      reject(err)
-    })
+    const cleanup = (err?: any): void => {
+      if (!stream.destroyed) stream.destroy()
+      if (!outp.destroyed) outp.destroy()
+      if (err !== undefined) reject(err)
+    }
 
-    outp.on('finish', () => {
-      stream.destroy()
-      resolve()
-    })
+    stream.on('error', cleanup)
+    outp.on('finish', resolve)
+    outp.on('error', cleanup)
 
-    outp.on('error', (err) => {
-      stream.destroy()
-      outp.destroy()
-      reject(err)
-    })
+    stream.pipe(outp)
+  }).finally(() => {
+    if (!stream.destroyed) stream.destroy()
+    if (!outp.destroyed) outp.destroy()
   })
 }
 

services/datalake/pod-datalake/src/hash.ts

@@ -13,27 +13,23 @@
 // limitations under the License.
 //
 
-import crypto from 'node:crypto'
+import { createHash } from 'node:crypto'
 import { createReadStream } from 'fs'
 import { Readable } from 'stream'
 
 export async function getBufferSha256 (buffer: Buffer): Promise<string> {
-  const hash = crypto.createHash('sha256')
+  const hash = createHash('sha256')
   hash.write(buffer)
   return hash.digest('hex')
 }
 
 export async function getStreamSha256 (stream: Readable): Promise<string> {
-  const hasher = crypto.createHash('sha256')
+  const hasher = createHash('sha256')
   stream.pipe(hasher)
 
-  await new Promise<void>((resolve, reject) => {
-    stream.on('error', (err) => {
-      reject(err)
-    })
-    stream.on('end', () => {
-      resolve()
-    })
+  await new Promise((resolve, reject) => {
+    stream.on('end', resolve)
+    stream.on('error', reject)
   })
 
   return hasher.digest('hex')