Major Description
I got a strange case of a corrupt segment. The error message is "java.lang.IllegalStateException: Segment b6e0cdbc-0004-9b05-3927-000498000493 not found". The segment id looks wrong, my guess is that the segment header got corrupt somehow. The checksum of the entry is correct however. I wrote a simple segment header dump tool (I will attach it), which printed:
segmentId: b6fec1b4-f321-4b64-aeab-31c27a939287.4c65e101 length: 40000 maxRef: 10000 checksum: 4c65e101 magic: 0aK version: 0 id count: 66 root count: 24 blob ref count: 0 reserved: 0 segment #0: e44fec74-3bc9-4cee-a864-5f5fb4485cb3 segment #1: b6480852-9af2-4f21-a542-933cd554e9ed segment #2: bec8216a-64e3-4683-a28a-08fbd7ed91f9 segment #3: b8067f5a-16af-429f-a1b5-c2f1ed1d3c59 segment #4: 7c2e6167-b292-444a-a318-4f43692f40f2 segment #5: 3b707f6e-d1e8-4bc0-ace5-67499ac4c369 segment #6: 0c15bf0a-770d-4057-af6b-baeaeffde613 segment #7: 97814ad5-3fc3-436e-a7c6-2aed13bcf529 segment #8: b4babf94-588f-4b32-a8d6-08ba3351abf2 segment #9: 2eab77d7-ee41-4519-ad14-c31f4f72d2e2 segment #10: 57949f56-15d1-4f65-a107-d517a222cb11 segment #11: d25bb0f8-3948-4d33-a35a-50a60a1e9f27 segment #12: 58066744-e2d6-4f1c-a962-caae337f48db segment #13: b195e811-a984-4b3d-a4c8-5fb33572bfce segment #14: 384b360d-69ce-4df4-a419-65b80d39b40c segment #15: 325b6083-de56-4a4b-a6e5-2eac83e9d4aa segment #16: e3839e53-c516-4dce-a39d-b6241d47ef1d segment #17: a56f0a75-625b-4684-af43-9936d4d0c4bd segment #18: b7428409-8dc0-4c5b-a050-78c838db0ef1 segment #19: 6ccd5436-37a1-4b46-a5a4-63f939f2de76 segment #20: 4f28ca6e-a52b-4a06-acb0-19b710366c96 segment #21: 137ec136-bcfb-405b-a5e3-59b37c54229c segment #22: 8a53ffe4-6941-4b9b-a517-9ab59acf9b63 segment #23: effd3f42-dff3-4082-a0fc-493beabe8d42 segment #24: 173ef78d-9f41-49fb-ac25-70daba943b37 segment #25: 9d3ab04d-d540-4256-a28f-c71134d1bfd0 segment #26: d1966946-45c7-4539-a8f2-9c7979b698c5 segment #27: b2a72be0-ee4e-4f9d-a957-f84908f05040 segment #28: 8eead39e-62f7-4b6c-ac12-5caee295b6e5 segment #29: 19832493-415c-46d2-aa43-0dd95982d312 segment #30: 462cd84b-3638-4c8c-a273-42b1be5d3df3 segment #31: 4b4f6a2d-1281-475c-adbe-34457b6de60d segment #32: e78b13e2-039d-4f73-a3a8-d25da3b78a93 segment #33: 03b652ac-623b-4d3d-a5f0-2e7dcd23fd88 segment #34: 3ff1c4cf-cbd7-45bb-a23a-7e033c64fe87 segment #35: ed9fb9ad-0a8c-4d37-ab95-c2211cde6fee segment #36: 505f766d-509d-4f1b-ad0b-dfd59ef6b6a1 segment #37: 398f1e80-e818-41b7-a055-ed6255f6e01b segment #38: 74cd7875-df17-43af-a2cc-f3256b2213b9 segment #39: ad884c29-61c9-4bd5-ad57-76ffa32ae3e8 segment #40: 29cfb8c8-f759-41b2-ac71-d35eac0910ad segment #41: af5032e1-b473-47ad-a8e2-a17e770982e8 segment #42: 37263fa3-3331-4e89-af1f-38972b65e058 segment #43: 81baf70d-5529-416f-a8bd-9858d62fd2cc segment #44: aa3abdfb-4fc7-4c49-a628-fb097f8db872 segment #45: 81e958b4-0493-4a7b-ab92-5f3cc13119e7 segment #46: f03d0200-fe8e-4e93-a94a-97b9052f13ab segment #47: d9931e67-cc8c-4f45-a1b5-129a0b07e1fb segment #48: e32ad441-12d9-4263-a258-b81bd85f499e segment #49: 2093a577-e797-44b5-aa3e-45c08b1ad9c1 segment #50: dadf47d7-9728-43dd-aa55-177ccbc45b81 segment #51: 9db4b6f5-c21c-4e27-a4ab-9a0c419477b2 segment #52: 2ca39d68-e7bf-4c83-aebe-f708fb23659e segment #53: 5dc42abe-e17b-41a3-a890-47c83eeee19a segment #54: a817c7fb-4f05-429e-ab23-49d68e222e6c segment #55: 8a5de869-a8a8-42cb-ac78-ec22763fe558 segment #56: cca0c5d8-9269-4b1f-ad3b-1ca666ca9cb9 segment #57: ff299dda-00ce-4e01-ac1c-2289447500b7 segment #58: 0c94d46e-7fae-474f-ac89-8ba87a64cb56 segment #59: 890f7fcc-7c7e-4dc7-acc5-ed0927ef1a9f segment #60: 16f5de56-2aaa-4ca2-afa7-4bcb536b74b1 segment #61: 97db1991-1c29-4f8c-ae05-7f79b712fb4c segment #62: 936aa29a-2679-4998-a159-d9a19069786a segment #63: 0d1abedd-8c20-4c1b-a9c8-f60d7cb94008 segment #64: 1ffb6ac4-d7a9-44c5-aaa6-bf967e87dec0 segment #65: b6e0cdbc-0004-9b05-3927-000498000493 ERROR: not a segment? root record reference #0: 7766a root record reference #1: 76f93 root record reference #2: 75e72 root record reference #3: 758c6 root record reference #4: 7529a root record reference #5: 74c59 root record reference #6: 7464f root record reference #7: 740e0 root record reference #8: 73ae7 root record reference #9: 734be root record reference #10: 7274d root record reference #11: 7210e root record reference #12: 71c3e root record reference #13: 7166d root record reference #14: 710e1 root record reference #15: 70b29 root record reference #16: 70647 root record reference #17: 70644 root record reference #18: 7063d root record reference #19: 70636 root record reference #20: 7062f root record reference #21: 70629 root record reference #22: 70622 root record reference #23: 70109
So just the last segment reference seems to be broken. The segment above is entry #250 in that file. The referenced segments in that segment refer to slightly older segments in the same file. The broken reference starts with b6e0cdbc, this seems to be intact. The reference seems to point to entry #242 in that file (a bit earlier).
... segment #61: 97db1991-1c29-4f8c-ae05-7f79b712fb4c -> entry #220 segment #62: 936aa29a-2679-4998-a159-d9a19069786a -> entry #241 segment #63: 0d1abedd-8c20-4c1b-a9c8-f60d7cb94008 -> entry #210 segment #64: 1ffb6ac4-d7a9-44c5-aaa6-bf967e87dec0 -> entry #228 segment #65: b6e0cdbc-0004-9b05-3927-000498000493 -> entry #242? -> would be b6e0cdbc-b5cf-494f-adfa-9dad38944b8d
I think the wrong byte sequence 00049b053927000498000493 is regular record data. I found the pattern "00049b053927" in a later segment (entry #277 in the same file), and segment data in general looks like this (many zeroes, many 0004 sequences).
So far I don't know what could have caused the corruption. It is strange that the same byte pattern appears later in the same file, but maybe it's just a common byte pattern.
Attachments
Attachments
Issue Links
- duplicates
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OAK-2049 ArrayIndexOutOfBoundsException in Segment.getRefId()
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- Closed
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