{"record":{"id":"ab08d7cc518aefd6","repo":"apache/hadoop","slug":"unable-to-update-the-boundaries-range-of-contentch","errorCode":null,"errorMessage":"Unable to update the boundaries/Range of contentChannel %s","messagePattern":"Unable to update the boundaries/Range of contentChannel (.+?)","errorType":"exception","errorClass":"IOException","httpStatus":null,"severity":"error","filePath":"hadoop-cloud-storage-project/hadoop-gcp/src/main/java/org/apache/hadoop/fs/gs/GoogleCloudStorageClientReadChannel.java","lineNumber":537,"sourceCode":"        skipInPlace();\n      } else {\n        // close existing contentChannel as requested bytes can't be served from current\n        // contentChannel;\n        closeContentChannel();\n      }\n    }\n\n    private ReadableByteChannel getStorageReadChannel(long seek, long limit) throws IOException {\n      ReadChannel readChannel = storage.reader(blobId, generateReadOptions());\n      try {\n        readChannel.seek(seek);\n        readChannel.limit(limit);\n        // bypass the storage-client caching layer hence eliminates the need to maintain a copy of\n        // chunk\n        readChannel.setChunkSize(0);\n        return readChannel;\n      } catch (Exception e) {\n        throw new IOException(\n            String.format(\n                \"Unable to update the boundaries/Range of contentChannel %s\",\n                resourceId.toString()),\n            e);\n      }\n    }\n\n    private BlobSourceOption[] generateReadOptions() {\n      List<BlobSourceOption> blobReadOptions = new ArrayList<>();\n      // To get decoded content\n      blobReadOptions.add(BlobSourceOption.shouldReturnRawInputStream(false));\n\n      if (blobId.getGeneration() != null) {\n        blobReadOptions.add(BlobSourceOption.generationMatch(blobId.getGeneration()));\n      }\n\n      // TODO: Add support for encryptionKey\n      return blobReadOptions.toArray(new BlobSourceOption[blobReadOptions.size()]);","sourceCodeStart":519,"sourceCodeEnd":555,"githubUrl":"https://github.com/apache/hadoop/blob/2add9630210752f88ceb1bb74eb65e37bf41da8e/hadoop-cloud-storage-project/hadoop-gcp/src/main/java/org/apache/hadoop/fs/gs/GoogleCloudStorageClientReadChannel.java#L519-L555","documentation":"getStorageReadChannel wraps any exception thrown while configuring the underlying ReadChannel from storage.reader(blobId, options) — seek(seek), limit(limit), setChunkSize(0) — into IOException \"Unable to update the boundaries/Range of contentChannel <resourceId>\". This happens each time the channel (re)opens a range: initial open, fadvise-driven reopens, seeks beyond inplaceSeekLimit, and footer reads. The specific cause (StorageException, IllegalArgumentException for an invalid range, etc.) is attached.","triggerScenarios":"Any range read that must open or reopen the underlying reader, where seek/limit throws: limit <= seek or negative offsets from caller arithmetic bugs (e.g. int overflow when computing ranges), a storage-client error creating the reader, or transient failures on reader creation.","commonSituations":"Offset math that overflows or goes negative near large objects (>2GB with int math); connector and google-cloud-storage client version skew breaking reader APIs; transient 5xx when opening a new range; seeks near objectSize against stale metadata.","solutions":["Read the cause: for invalid ranges, validate and fix offsets (0 <= seek < limit <= size) in caller math.","Retry once on transient StorageException causes — reader creation can fail transiently.","Align the connector version with the bundled google-cloud-storage client version (no client-side overrides).","Switch range-offset computation from int to long to avoid overflow on multi-GB objects."],"exampleFix":"// before\nlong rangeEnd = (int) offset + chunkLen; // int overflow for large offsets -> invalid range\n\n// after\nlong rangeEnd = offset + (long) chunkLen;\nrangeEnd = Math.min(rangeEnd, objectSize);","handlingStrategy":"retry","validationCode":"// Validate range before any seek-driven read\ncheckArgument(offset >= 0, \"offset must be >= 0\");\ncheckArgument(limit > offset && limit <= objectSize, \"need 0 <= offset < limit <= size\");\nch.position(offset);","typeGuard":null,"tryCatchPattern":"catch (IOException e) {\n  boolean invalidRange = e.getCause() instanceof IllegalArgumentException;\n  if (!invalidRange && attempt < MAX) { backoff(); retryOpen(); return; } // transient\n  throw e; // invalid range = caller bug: fix offset math\n}","preventionTips":["Compute all range offsets in long, never int, especially near 2GB boundaries.","Clamp requested ranges to [0, objectSize] from fresh metadata.","Keep connector and google-cloud-storage client versions aligned to avoid reader API breakage."],"tags":["gcs","read","seek","range-request","ioexception"],"backgroundTag":"range-read-open-failed","analyzedSha":"2add9630210752f88ceb1bb74eb65e37bf41da8e","analyzedAt":"2026-08-22T19:55:07.957Z","schemaVersion":2},"datasetVersion":"2026-08-22T20:17:22.307Z"}