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  1. Core Server
  2. SERVER-17713

WiredTiger using zlib compression can create invalid compressed stream

    Details

    • Type: Bug
    • Status: Closed
    • Priority: Critical - P2
    • Resolution: Fixed
    • Affects Version/s: 3.0.0, 3.0.1
    • Fix Version/s: 3.0.2, 3.1.1
    • Component/s: WiredTiger
    • Labels:
      None
    • Backwards Compatibility:
      Fully Compatible
    • Operating System:
      ALL
    • Backport Completed:

      Description

      Issue Status as of Apr 02, 2015

      ISSUE SUMMARY
      In some rare circumstances, WiredTiger configured with zlib compression can create a corrupted on-disk file. If you see the following messages in your log file, you may have encountered this error:

      2015-03-24T09:27:19.605-0400 E STORAGE  [initandlisten] WiredTiger (0) [1427203639:605943][21310:0x7fe063080b80], file:collection-2--6089165247661965497.wt, cursor.prev: zlib error: inflate: data error: -3
      2015-03-24T09:27:19.606-0400 E STORAGE  [initandlisten] WiredTiger (0) [1427203639:606093][21310:0x7fe063080b80], file:collection-2--6089165247661965497.wt, cursor.prev: file:collection-2--6089165247661965497.wt: encountered an illegal file format or internal value
      2015-03-24T09:27:19.606-0400 E STORAGE  [initandlisten] WiredTiger (-31804) [1427203639:606114][21310:0x7fe063080b80], file:collection-2--6089165247661965497.wt, cursor.prev: the process must exit and restart: WT_PANIC: WiredTiger library panic
      2015-03-24T09:27:19.606-0400 I -        [initandlisten] Fatal Assertion 28558
      

      USER IMPACT
      mongod may terminate when it subsequently accesses the corrupted block, or may return corrupted data to a query.

      WORKAROUNDS
      Use snappy compression or upgrade to 3.0.2.

      AFFECTED VERSIONS
      3.0.0 and 3.0.1

      FIX VERSION
      The fix is included in the 3.0.2 production release.

      Original description

      Under certain conditions WiredTiger using zlib compression creates an invalid and unrecoverable compressed stream, resulting in the following fatal error on subsequent access:

      2015-03-24T09:27:19.103-0400 I STORAGE  [initandlisten] wiredtiger_open config: create,cache_size=5G,session_max=20000,eviction=(threads_max=4),statistics=(fast),log=(enabled=true,archive=true,path=journal,compressor=snappy),checkpoint=(wait=60,log_size=2GB),statistics_log=(wait=0),
      2015-03-24T09:27:19.605-0400 E STORAGE  [initandlisten] WiredTiger (0) [1427203639:605943][21310:0x7fe063080b80], file:collection-2--6089165247661965497.wt, cursor.prev: zlib error: inflate: data error: -3
      2015-03-24T09:27:19.606-0400 E STORAGE  [initandlisten] WiredTiger (0) [1427203639:606093][21310:0x7fe063080b80], file:collection-2--6089165247661965497.wt, cursor.prev: file:collection-2--6089165247661965497.wt: encountered an illegal file format or internal value
      2015-03-24T09:27:19.606-0400 E STORAGE  [initandlisten] WiredTiger (-31804) [1427203639:606114][21310:0x7fe063080b80], file:collection-2--6089165247661965497.wt, cursor.prev: the process must exit and restart: WT_PANIC: WiredTiger library panic
      2015-03-24T09:27:19.606-0400 I -        [initandlisten] Fatal Assertion 28558
      2015-03-24T09:27:19.616-0400 I CONTROL  [initandlisten] 
       0xf4fe49 0xefa091 0xeddc81 0xd790ea 0x1380900 0x1380bc5 0x1381064 0x12f0fa7 0x12f5485 0x12f2823 0x1306424 0x12e0e7f 0x1322c19 0xd6794c 0xd67a42 0xd6819a 0xd61e42 0xce22b6 0xce53ec 0xd60cb6 0xa6f9cd 0x7e20c0 0x7e7704 0x7fe061c7efe0 0x7e02c9
      ----- BEGIN BACKTRACE -----
      {"backtrace":[{"b":"400000","o":"B4FE49"},{"b":"400000","o":"AFA091"},{"b":"400000","o":"ADDC81"},{"b":"400000","o":"9790EA"},{"b":"400000","o":"F80900"},{"b":"400000","o":"F80BC5"},{"b":"400000","o":"F81064"},{"b":"400000","o":"EF0FA7"},{"b":"400000","o":"EF5485"},{"b":"400000","o":"EF2823"},{"b":"400000","o":"F06424"},{"b":"400000","o":"EE0E7F"},{"b":"400000","o":"F22C19"},{"b":"400000","o":"96794C"},{"b":"400000","o":"967A42"},{"b":"400000","o":"96819A"},{"b":"400000","o":"961E42"},{"b":"400000","o":"8E22B6"},{"b":"400000","o":"8E53EC"},{"b":"400000","o":"960CB6"},{"b":"400000","o":"66F9CD"},{"b":"400000","o":"3E20C0"},{"b":"400000","o":"3E7704"},{"b":"7FE061C5F000","o":"1FFE0"},{"b":"400000","o":"3E02C9"}],"processInfo":{ "mongodbVersion" : "3.0.1", "gitVersion" : "534b5a3f9d10f00cd27737fbcd951032248b5952", "uname" : { "sysname" : "Linux", "release" : "3.17.4-301.fc21.x86_64", "version" : "#1 SMP Thu Nov 27 19:09:10 UTC 2014", "machine" : "x86_64" }, "somap" : [ { "elfType" : 2, "b" : "400000" }, { "b" : "7FFF371FE000", "elfType" : 3 }, { "b" : "7FE062C56000", "path" : "/lib64/libpthread.so.0", "elfType" : 3 }, { "b" : "7FE062A4E000", "path" : "/lib64/librt.so.1", "elfType" : 3 }, { "b" : "7FE06284A000", "path" : "/lib64/libdl.so.2", "elfType" : 3 }, { "b" : "7FE06253B000", "path" : "/lib64/libstdc++.so.6", "elfType" : 3 }, { "b" : "7FE062233000", "path" : "/lib64/libm.so.6", "elfType" : 3 }, { "b" : "7FE06201C000", "path" : "/lib64/libgcc_s.so.1", "elfType" : 3 }, { "b" : "7FE061C5F000", "path" : "/lib64/libc.so.6", "elfType" : 3 }, { "b" : "7FE062E72000", "path" : "/lib64/ld-linux-x86-64.so.2", "elfType" : 3 } ] }}
       mongod(_ZN5mongo15printStackTraceERSo+0x29) [0xf4fe49]
       mongod(_ZN5mongo10logContextEPKc+0xE1) [0xefa091]
       mongod(_ZN5mongo13fassertFailedEi+0x61) [0xeddc81]
       mongod(+0x9790EA) [0xd790ea]
       mongod(+0xF80900) [0x1380900]
       mongod(__wt_err+0x95) [0x1380bc5]
       mongod(__wt_panic+0x24) [0x1381064]
       mongod(__wt_bt_read+0x437) [0x12f0fa7]
       mongod(__wt_cache_read+0x1C5) [0x12f5485]
       mongod(__wt_page_in_func+0x403) [0x12f2823]
       mongod(__wt_tree_walk+0x594) [0x1306424]
       mongod(__wt_btcur_prev+0xB4F) [0x12e0e7f]
       mongod(+0xF22C19) [0x1322c19]
       mongod(_ZN5mongo21WiredTigerRecordStore8Iterator8_getNextEv+0x2C) [0xd6794c]
       mongod(_ZN5mongo21WiredTigerRecordStore8Iterator7getNextEv+0x12) [0xd67a42]
       mongod(_ZN5mongo21WiredTigerRecordStoreC1EPNS_16OperationContextERKNS_10StringDataES5_bllPNS_28CappedDocumentDeleteCallbackEPNS_20WiredTigerSizeStorerE+0x46A) [0xd6819a]
       mongod(_ZN5mongo18WiredTigerKVEngine14getRecordStoreEPNS_16OperationContextERKNS_10StringDataES5_RKNS_17CollectionOptionsE+0x132) [0xd61e42]
       mongod(_ZN5mongo22KVDatabaseCatalogEntry14initCollectionEPNS_16OperationContextERKSsb+0x276) [0xce22b6]
       mongod(_ZN5mongo15KVStorageEngineC1EPNS_8KVEngineERKNS_22KVStorageEngineOptionsE+0x69C) [0xce53ec]
       mongod(+0x960CB6) [0xd60cb6]
       mongod(_ZN5mongo23GlobalEnvironmentMongoD22setGlobalStorageEngineERKSs+0x30D) [0xa6f9cd]
       mongod(_ZN5mongo13initAndListenEi+0x2F0) [0x7e20c0]
       mongod(main+0x134) [0x7e7704]
       libc.so.6(__libc_start_main+0xF0) [0x7fe061c7efe0]
       mongod(+0x3E02C9) [0x7e02c9]
      -----  END BACKTRACE  -----
      2015-03-24T09:27:19.617-0400 I -        [initandlisten] 
       
      ***aborting after fassert() failure
      

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                  Updated:
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