Any other thoughts on this? The data corruption occurred when we were using
version 2.7.5. I have looked at a couple of tickets involving corrupted trees,
but it doesn't seem like any of them apply to our use case of Ignite. Would
like to understand at least how we get into this corrupted state in the first
place, and how to handle it when it happens. Is there a way to detect and log
this error while avoiding crashing the process?
From: user@ignite.apache.org At: 02/19/21 14:18:44To: Mitchell Rathbun
(BLOOMBERG/ 731 LEX ) , user@ignite.apache.org
Subject: Re: Corrupted B+ Tree Causing Repeated Crashes
Hello! What version of Apache Ignite are you using?
19.02.2021, 22:07, "Mitchell Rathbun (BLOOMBERG/ 731 LEX)"
<mrathb...@bloomberg.net>:
> We are encountering the following error repeatedly, which causes our node to
crash:
>
> 2021-02-19 13:30:38,175 ERROR STDIO [pool-32-thread-5] {} Feb 19, 2021
1:30:38 PM org.apache.ignite.logger.java.JavaLogger error
> SEVERE: Critical system error detected. Will be handled accordingly to
configured handler [hnd=StopNodeOrHaltFailureHandler [tryStop=false, timeout=0,
super=AbstractFailureHandler
> [ignoredFailureTypes=UnmodifiableSet [SYSTEM_WORKER_BLOCKED,
SYSTEM_CRITICAL_OPERATION_TIMEOUT]]], failureCtx=FailureContext
[type=CRITICAL_ERROR, err=class
o.a.i.i.processors.cache.persistence.tree.CorruptedTreeException: B+Tree is
corrupted [pages(groupId, pageId)=[IgniteBiTuple [val1=-128547534,
val2=281474976721835]], msg=Runtime failure on lookup row: SearchRow
[key=com.bloomberg.aim.wingman.cachemgr.Ts3DataCache$Ts3SecurityCacheKey
[idHash=1436767547, hash=-931214342,
accountCusip=com.bloomberg.aim.wingman.common.dto.submgr.AccountCusip
[idHash=316813954, hash=343304888, accountId=0,
cusip=com.bloomberg.aim.wingman.common.dto.Cusip [idHash=1325824124,
hash=2123451959, cusip1=136125, cusip2=9001, cusip3=541401120, dept=2,
subflag=2]]], hash=-931214342, cacheId=0]]]]
> class
org.apache.ignite.internal.processors.cache.persistence.tree.CorruptedTreeExcept
ion: B+Tree is corrupted [pages(groupId, pageId)=[IgniteBiTuple
[val1=-128547534, val2=281474976721835]], msg=Runtime failure on lookup row:
SearchRow
[key=com.bloomberg.aim.wingman.cachemgr.Ts3DataCache$Ts3SecurityCacheKey
[idHash=1436767547, hash=-931214342, accountCusip=
> com.bloomberg.aim.wingman.common.dto.submgr.AccountCusip [idHash=316813954,
hash=343304888, accountId=0, cusip=com.bloomberg.aim.wingman.common.dto.Cusip
[idHash=1325824124, hash=2123451959, cusip1=136125, cusip2=9001,
cusip3=541401120, dept=2, subflag=2]]], hash=-931214342, cacheId=0]]
> at
org.apache.ignite.internal.processors.cache.persistence.tree.BPlusTree.corrupted
TreeException(BPlusTree.java:6106)
> at
org.apache.ignite.internal.processors.cache.persistence.tree.BPlusTree.findOne(B
PlusTree.java:1367)
> at
org.apache.ignite.internal.processors.cache.persistence.tree.BPlusTree.findOne(B
PlusTree.java:1344)
> at
org.apache.ignite.internal.processors.cache.IgniteCacheOffheapManagerImpl$CacheD
ataStoreImpl.find(IgniteCacheOffheapManagerImpl.java:2755)
> at
org.apache.ignite.internal.processors.cache.persistence.GridCacheOffheapManager$
GridCacheDataStore.find(GridCacheOffheapManager.java:2469)
> at
org.apache.ignite.internal.processors.cache.IgniteCacheOffheapManagerImpl.read(I
gniteCacheOffheapManagerImpl.java:637)
> at
org.apache.ignite.internal.processors.cache.local.atomic.GridLocalAtomicCache.ge
tAllInternal(GridLocalAtomicCache.java:410)
> at
org.apache.ignite.internal.processors.cache.local.atomic.GridLocalAtomicCache.ge
tAll(GridLocalAtomicCache.java:323)
> at
org.apache.ignite.internal.processors.cache.GridCacheAdapter.repairableGetAll(Gr
idCacheAdapter.java:4907)
> at
org.apache.ignite.internal.processors.cache.GridCacheAdapter.getAll(GridCacheAda
pter.java:1617)
> at
org.apache.ignite.internal.processors.cache.IgniteCacheProxyImpl.getAll(IgniteCa
cheProxyImpl.java:1157)
> at
org.apache.ignite.internal.processors.cache.GatewayProtectedCacheProxy.getAll(Ga
tewayProtectedCacheProxy.java:724)
> at
com.bloomberg.aim.wingman.cachemgr.Ts3DataCache.fetchCalcrtDataByKeySync(Ts3Data
Cache.java:1535)
> at
com.bloomberg.aim.wingman.cachemgr.Ts3DataCache.lambda$fetchCalcrtDataBySecurity
KeyAccountAsync$11(Ts3DataCache.java:895)
> at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264)
> at
java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.j
ava:1128)
> at
java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.
java:628)
> at java.base/java.lang.Thread.run(Thread.java:834)
> Caused by: java.lang.IllegalStateException: Item not found: 1
> at
org.apache.ignite.internal.processors.cache.persistence.tree.io.AbstractDataPage
IO.findIndirectItemIndex(AbstractDataPageIO.java:351)
> at
org.apache.ignite.internal.processors.cache.persistence.tree.io.AbstractDataPage
IO.getDataOffset(AbstractDataPageIO.java:459)
> at
org.apache.ignite.internal.processors.cache.persistence.tree.io.AbstractDataPage
IO.readPayload(AbstractDataPageIO.java:501)
> at
org.apache.ignite.internal.processors.cache.tree.CacheDataTree.compareKeys(Cache
DataTree.java:447)
> at
org.apache.ignite.internal.processors.cache.tree.CacheDataTree.compare(CacheData
Tree.java:386)
> at
org.apache.ignite.internal.processors.cache.tree.CacheDataTree.compare(CacheData
Tree.java:63)
> at
org.apache.ignite.internal.processors.cache.persistence.tree.BPlusTree.compare(B
PlusTree.java:5377)
> at
org.apache.ignite.internal.processors.cache.persistence.tree.BPlusTree.findInser
tionPoint(BPlusTree.java:5297)
> at
org.apache.ignite.internal.processors.cache.persistence.tree.BPlusTree.access$11
00(BPlusTree.java:98)
> at
org.apache.ignite.internal.processors.cache.persistence.tree.BPlusTree$Search.ru
n0(BPlusTree.java:302)
> at
org.apache.ignite.internal.processors.cache.persistence.tree.BPlusTree$GetPageHa
ndler.run(BPlusTree.java:5888)
> at
org.apache.ignite.internal.processors.cache.persistence.tree.BPlusTree$Search.ru
n(BPlusTree.java:282)
> at
org.apache.ignite.internal.processors.cache.persistence.tree.BPlusTree$GetPageHa
ndler.run(BPlusTree.java:5874)
> at
org.apache.ignite.internal.processors.cache.persistence.tree.util.PageHandler.re
adPage(PageHandler.java:169)
> at
org.apache.ignite.internal.processors.cache.persistence.DataStructure.read(DataS
tructure.java:364)
> at
org.apache.ignite.internal.processors.cache.persistence.tree.BPlusTree.read(BPlu
sTree.java:6075)
> at
org.apache.ignite.internal.processors.cache.persistence.tree.BPlusTree.findDown(
BPlusTree.java:1424)
> at
org.apache.ignite.internal.processors.cache.persistence.tree.BPlusTree.findDown(
BPlusTree.java:1433)
> at
org.apache.ignite.internal.processors.cache.persistence.tree.BPlusTree.findDown(
BPlusTree.java:1433)
> at
org.apache.ignite.internal.processors.cache.persistence.tree.BPlusTree.doFind(BP
lusTree.java:1391)
> at
org.apache.ignite.internal.processors.cache.persistence.tree.BPlusTree.findOne(B
PlusTree.java:1359)
> ... 16 more
> 2021-02-19 13:30:38,177 ERROR STDIO [pool-32-thread-5] {} Feb 19, 2021
1:30:38 PM org.apache.ignite.logger.java.JavaLogger error
> SEVERE: A critical problem with persistence data structures was detected.
Please make backup of persistence storage and WAL files for further analysis.
Persistence storage path: null WAL path: db/wal WAL archive path: db/wal/archive
>
> I think we can fix this by just clearing the persistent storage and
restarting our node, but we can't have this happen in production so I want to
understand two things:
>
> 1. How can this happen?
>
> 2. How can we prevent this from happening/best respond when it does happen?
We don't want our process to crash as a result of this, we would rather just
invalidate the cache and clear it if at all possible.
