# Corruptindexexception warn message unclear

**URL:** <https://discuss.elastic.co/t/corruptindexexception-warn-message-unclear/18377>\
**Category:** Elasticsearch\
**Created:** [June 27, 2014, 3:20pm UTC](https://discuss.elastic.co/t/corruptindexexception-warn-message-unclear/18377 "2014-06-27T15:20:26Z")\
**Posts on this page:** 6\
**Page:** 1

<div class="post-metadata">

**Author:** ![sri](https://sea2.discourse-cdn.com/elastic/user_avatar/discuss.elastic.co/sri/32/60716_2.png) [@sri](https://discuss.elastic.co/u/sri)\
**Post date:** [June 27, 2014, 3:20pm UTC](https://discuss.elastic.co/t/corruptindexexception-warn-message-unclear/18377/1 "2014-06-27T15:20:26Z")

</div>

Hi

I am getting the below error my ES cluster quite frequently but am not able  
to understand the actual reason as to why its happening.

[2014-06-27 11:12:50,014][WARN][cluster.action.shard] [NES1]  
[logsjmeter62][0] received shard failed for [logsjmeter62][0],  
node[ZqO9OQ8VQ0uGkvXdIeovRg], [P], s[STARTED], indexUUID  
[EfBgCRm8SWu4AtsNPYVXyA], reason [engine failure, message [refresh  
failed][CorruptIndexException[codec mismatch: actual  
codec=Lucene41PostingsWriterDoc vs expected codec=Lucene46FieldInfos  
(resource:  
BufferedChecksumIndexInput(SlicedIndexInput(SlicedIndexInput(\_39.fnm in  
MMapIndexInput(path="/data/es/NESClus/nodes/0/indices/logsjmeter62/0/index/\_39.cfs"))  
in  
MMapIndexInput(path="/data/es/NESClus/nodes/0/indices/logsjmeter62/0/index/\_39.cfs")  
zlice=7371:8755)))]]]

Thanks and Regards  
Sri

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<div class="post-metadata">

**Author:** ![simonw\_2](https://sea2.discourse-cdn.com/elastic/user_avatar/discuss.elastic.co/simonw_2/32/1130_2.png) [@simonw\_2](https://discuss.elastic.co/u/simonw_2)\
**Post date:** [June 30, 2014, 8:00am UTC](https://discuss.elastic.co/t/corruptindexexception-warn-message-unclear/18377/2 "2014-06-30T08:00:23Z")

</div>

hey,

thanks for raising this, can you gimme more infos ie. which version you are  
using and if that happens only on one shard or on all shards in your  
system? It could just be what it says, and index corruption maybe due to HW  
failure but there could be other reasons....

simon

On Friday, June 27, 2014 5:20:26 PM UTC+2, sri wrote:

> Hi
> 
> I am getting the below error my ES cluster quite frequently but am not  
> able to understand the actual reason as to why its happening.
> 
> [2014-06-27 11:12:50,014][WARN][cluster.action.shard] [NES1]  
> [logsjmeter62][0] received shard failed for [logsjmeter62][0],  
> node[ZqO9OQ8VQ0uGkvXdIeovRg], [P], s[STARTED], indexUUID  
> [EfBgCRm8SWu4AtsNPYVXyA], reason [engine failure, message [refresh  
> failed][CorruptIndexException[codec mismatch: actual  
> codec=Lucene41PostingsWriterDoc vs expected codec=Lucene46FieldInfos  
> (resource:  
> BufferedChecksumIndexInput(SlicedIndexInput(SlicedIndexInput(\_39.fnm in  
> MMapIndexInput(path="/data/es/NESClus/nodes/0/indices/logsjmeter62/0/index/\_39.cfs"))  
> in  
> MMapIndexInput(path="/data/es/NESClus/nodes/0/indices/logsjmeter62/0/index/\_39.cfs")  
> zlice=7371:8755)))]]]
> 
> Thanks and Regards  
> Sri

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**Author:** ![sri](https://sea2.discourse-cdn.com/elastic/user_avatar/discuss.elastic.co/sri/32/60716_2.png) [@sri](https://discuss.elastic.co/u/sri)\
**Post date:** [June 30, 2014, 1:07pm UTC](https://discuss.elastic.co/t/corruptindexexception-warn-message-unclear/18377/3 "2014-06-30T13:07:37Z")

</div>

Hi Simon,

i am currently using elasticsearch 1.2.1, i am getting the error on all my  
data nodes, below are the errors:

[2014-06-30 09:03:57,762][WARN][cluster.action.shard] [NES1]  
[logsjmeter39][1] received shard failed for [logsjmeter39][1],  
node[Jjvt3FxwSLWpSCHeIjOedQ], [P], s[STARTED], indexUUID  
[\_PGn7TPETEWllqz71M2ZBA], reason [engine failure, message [refresh  
failed][CorruptIndexException[codec mismatch: actual  
codec=Lucene46FieldInfos vs expected codec=Lucene41PostingsWriterPos  
(resource: SlicedIndexInput(SlicedIndexInput(\_1j\_es090\_0.pos in  
MMapIndexInput(path="/data/es/NESClus/nodes/0/indices/logsjmeter39/1/index/\_1j.cfs"))  
in  
MMapIndexInput(path="/data/es/NESClus/nodes/0/indices/logsjmeter39/1/index/\_1j.cfs")  
slice=17707:22401))]]]

[2014-06-30 09:03:14,785][WARN][cluster.action.shard] [NES2]  
[logsjmeter87][4] sending failed shard for [logsjmeter87][4],  
node[XVuxg7fzTT-Xy-ArWiapJQ], [R], s[STARTED], indexUUID  
[leU8sfPETKCeQFvntNY9sg], reason [engine failure, message [refresh  
failed][CorruptIndexException[codec mismatch: actual  
codec=Lucene45DocValuesData vs expected codec=Lucene45ValuesMetadata  
(resource:  
BufferedChecksumIndexInput(SlicedIndexInput(SlicedIndexInput(\_12\_Lucene45\_0.dvm  
in  
MMapIndexInput(path="/data/es/NESClus/nodes/0/indices/logsjmeter87/4/index/\_12.cfs"))  
in  
MMapIndexInput(path="/data/es/NESClus/nodes/0/indices/logsjmeter87/4/index/\_12.cfs")  
slice=15224:15300)))]]]

[2014-06-30 09:03:57,639][WARN][cluster.action.shard] [NES3]  
[logsjmeter39][1] sending failed shard for [logsjmeter39][1],  
node[Jjvt3FxwSLWpSCHeIjOedQ], [P], s[STARTED], indexUUID  
[\_PGn7TPETEWllqz71M2ZBA], reason [engine failure, message [refresh  
failed][CorruptIndexException[codec mismatch: actual  
codec=Lucene46FieldInfos vs expected codec=Lucene41PostingsWriterPos  
(resource: SlicedIndexInput(SlicedIndexInput(\_1j\_es090\_0.pos in  
MMapIndexInput(path="/data/es/NESClus/nodes/0/indices/logsjmeter39/1/index/\_1j.cfs"))  
in  
MMapIndexInput(path="/data/es/NESClus/nodes/0/indices/logsjmeter39/1/index/\_1j.cfs")  
slice=17707:22401))]]]

Thanks and Regards  
Sri

On Monday, June 30, 2014 4:00:23 AM UTC-4, simonw wrote:

> hey,
> 
> thanks for raising this, can you gimme more infos ie. which version you  
> are using and if that happens only on one shard or on all shards in your  
> system? It could just be what it says, and index corruption maybe due to HW  
> failure but there could be other reasons....
> 
> simon
> 
> On Friday, June 27, 2014 5:20:26 PM UTC+2, sri wrote:
> 
> > Hi
> > 
> > I am getting the below error my ES cluster quite frequently but am not  
> > able to understand the actual reason as to why its happening.
> > 
> > [2014-06-27 11:12:50,014][WARN][cluster.action.shard] [NES1]  
> > [logsjmeter62][0] received shard failed for [logsjmeter62][0],  
> > node[ZqO9OQ8VQ0uGkvXdIeovRg], [P], s[STARTED], indexUUID  
> > [EfBgCRm8SWu4AtsNPYVXyA], reason [engine failure, message [refresh  
> > failed][CorruptIndexException[codec mismatch: actual  
> > codec=Lucene41PostingsWriterDoc vs expected codec=Lucene46FieldInfos  
> > (resource:  
> > BufferedChecksumIndexInput(SlicedIndexInput(SlicedIndexInput(\_39.fnm in  
> > MMapIndexInput(path="/data/es/NESClus/nodes/0/indices/logsjmeter62/0/index/\_39.cfs"))  
> > in  
> > MMapIndexInput(path="/data/es/NESClus/nodes/0/indices/logsjmeter62/0/index/\_39.cfs")  
> > zlice=7371:8755)))]]]
> > 
> > Thanks and Regards  
> > Sri

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<div class="post-metadata">

**Author:** ![sri](https://sea2.discourse-cdn.com/elastic/user_avatar/discuss.elastic.co/sri/32/60716_2.png) [@sri](https://discuss.elastic.co/u/sri)\
**Post date:** [June 30, 2014, 1:15pm UTC](https://discuss.elastic.co/t/corruptindexexception-warn-message-unclear/18377/4 "2014-06-30T13:15:15Z")

</div>

MORE INFO:

I grepped only the 'WARN' messages.

MASTER Node(ES1) logs:  
[2014-06-30 09:02:36,942][WARN][index.engine.internal] [NES1]  
[logsjmeter14][2] failed engine [refresh failed]  
[2014-06-30 09:02:37,715][WARN][cluster.action.shard] [NES1]  
[logsjmeter14][2] sending failed shard for [logsjmeter14][2],  
node[dbPhRQoQQE-Tlgict\_gfeg], [P], s[STARTED], indexUUID  
[lXE8Wre0S3KxjGs9Jov1tw], reason [engine failure, message [refresh  
failed][CorruptIndexException[codec header mismatch: actual header=0 vs  
expected header=1071082519 (resource:  
BufferedChecksumIndexInput(SlicedIndexInput(SlicedIndexInput(\_1a\_es090\_0.blm  
in  
MMapIndexInput(path="/data/es/NESClus/nodes/0/indices/logsjmeter14/2/index/\_1a.cfs"))  
in  
MMapIndexInput(path="/data/es/NESClus/nodes/0/indices/logsjmeter14/2/index/\_1a.cfs")  
slice=29488:29662)))]]]  
[2014-06-30 09:02:37,717][WARN][cluster.action.shard] [NES1]  
[logsjmeter14][2] received shard failed for [logsjmeter14][2],  
node[dbPhRQoQQE-Tlgict\_gfeg], [P], s[STARTED], indexUUID  
[lXE8Wre0S3KxjGs9Jov1tw], reason [engine failure, message [refresh  
failed][CorruptIndexException[codec header mismatch: actual header=0 vs  
expected header=1071082519 (resource:  
BufferedChecksumIndexInput(SlicedIndexInput(SlicedIndexInput(\_1a\_es090\_0.blm  
in  
MMapIndexInput(path="/data/es/NESClus/nodes/0/indices/logsjmeter14/2/index/\_1a.cfs"))  
in  
MMapIndexInput(path="/data/es/NESClus/nodes/0/indices/logsjmeter14/2/index/\_1a.cfs")  
slice=29488:29662)))]]]  
[2014-06-30 09:03:14,809][WARN][cluster.action.shard] [NES1]  
[logsjmeter87][4] received shard failed for [logsjmeter87][4],  
node[XVuxg7fzTT-Xy-ArWiapJQ], [R], s[STARTED], indexUUID  
[leU8sfPETKCeQFvntNY9sg], reason [engine failure, message [refresh  
failed][CorruptIndexException[codec mismatch: actual  
codec=Lucene45DocValuesData vs expected codec=Lucene45ValuesMetadata  
(resource:  
BufferedChecksumIndexInput(SlicedIndexInput(SlicedIndexInput(\_12\_Lucene45\_0.dvm  
in  
MMapIndexInput(path="/data/es/NESClus/nodes/0/indices/logsjmeter87/4/index/\_12.cfs"))  
in  
MMapIndexInput(path="/data/es/NESClus/nodes/0/indices/logsjmeter87/4/index/\_12.cfs")  
slice=15224:15300)))]]]  
[2014-06-30 09:03:24,021][WARN][index.engine.internal] [NES1]  
[logsjmeter65][1] failed engine [refresh failed]  
[2014-06-30 09:03:24,371][WARN][cluster.action.shard] [NES1]  
[logsjmeter65][1] sending failed shard for [logsjmeter65][1],  
node[dbPhRQoQQE-Tlgict\_gfeg], [P], s[STARTED], indexUUID  
[WXUHlSGVQ-GPGSKg0oWPIw], reason [engine failure, message [refresh  
failed][CorruptIndexException[codec mismatch: actual codec=XBloomFilter vs  
expected codec=Lucene41NormsMetadata (resource:  
BufferedChecksumIndexInput(SlicedIndexInput(SlicedIndexInput(\_1b.nvm in  
MMapIndexInput(path="/data/es/NESClus/nodes/0/indices/logsjmeter65/1/index/\_1b.cfs"))  
in  
MMapIndexInput(path="/data/es/NESClus/nodes/0/indices/logsjmeter65/1/index/\_1b.cfs")  
slice=15048:15209)))]]]  
[2014-06-30 09:03:24,371][WARN][cluster.action.shard] [NES1]  
[logsjmeter65][1] received shard failed for [logsjmeter65][1],  
node[dbPhRQoQQE-Tlgict\_gfeg], [P], s[STARTED], indexUUID  
[WXUHlSGVQ-GPGSKg0oWPIw], reason [engine failure, message [refresh  
failed][CorruptIndexException[codec mismatch: actual codec=XBloomFilter vs  
expected codec=Lucene41NormsMetadata (resource:  
BufferedChecksumIndexInput(SlicedIndexInput(SlicedIndexInput(\_1b.nvm in  
MMapIndexInput(path="/data/es/NESClus/nodes/0/indices/logsjmeter65/1/index/\_1b.cfs"))  
in  
MMapIndexInput(path="/data/es/NESClus/nodes/0/indices/logsjmeter65/1/index/\_1b.cfs")  
slice=15048:15209)))]]]  
[2014-06-30 09:03:31,778][WARN][index.engine.internal] [NES1]  
[logsjmeter79][0] failed engine [refresh failed]  
[2014-06-30 09:03:32,084][WARN][cluster.action.shard] [NES1]  
[logsjmeter79][0] sending failed shard for [logsjmeter79][0],  
node[dbPhRQoQQE-Tlgict\_gfeg], [R], s[STARTED], indexUUID  
[NZgUPNQnT0Ss0Lhk9PUz1w], reason [engine failure, message [refresh  
failed][CorruptIndexException[codec mismatch: actual  
codec=BLOCK\_TREE\_TERMS\_INDEX vs expected codec=CompoundFileWriterEntries  
(resource:  
BufferedChecksumIndexInput(MMapIndexInput(path="/data/es/NESClus/nodes/0/indices/logsjmeter79/0/index/\_z.cfe")))]]]  
[2014-06-30 09:03:32,086][WARN][cluster.action.shard] [NES1]  
[logsjmeter79][0] received shard failed for [logsjmeter79][0],  
node[dbPhRQoQQE-Tlgict\_gfeg], [R], s[STARTED], indexUUID  
[NZgUPNQnT0Ss0Lhk9PUz1w], reason [engine failure, message [refresh  
failed][CorruptIndexException[codec mismatch: actual  
codec=BLOCK\_TREE\_TERMS\_INDEX vs expected codec=CompoundFileWriterEntries  
(resource:  
BufferedChecksumIndexInput(MMapIndexInput(path="/data/es/NESClus/nodes/0/indices/logsjmeter79/0/index/\_z.cfe")))]]]  
[2014-06-30 09:03:33,865][WARN][monitor.jvm] [NES1]  
[gc][young][228848][7461] duration [1.7s], collections [1]/[2s], total  
[1.7s]/[4.4m], memory [3gb]-\>[2.8gb]/[3.9gb], all\_pools {[young]  
[168.5mb]-\>[30.6mb]/[266.2mb]}{[survivor]  
[27.8mb]-\>[29.2mb]/[33.2mb]}{[old] [2.8gb]-\>[2.8gb]/[3.6gb]}  
[2014-06-30 09:03:57,762][WARN][cluster.action.shard] [NES1]  
[logsjmeter39][1] received shard failed for [logsjmeter39][1],  
node[Jjvt3FxwSLWpSCHeIjOedQ], [P], s[STARTED], indexUUID  
[\_PGn7TPETEWllqz71M2ZBA], reason [engine failure, message [refresh  
failed][CorruptIndexException[codec mismatch: actual  
codec=Lucene46FieldInfos vs expected codec=Lucene41PostingsWriterPos  
(resource: SlicedIndexInput(SlicedIndexInput(\_1j\_es090\_0.pos in  
MMapIndexInput(path="/data/es/NESClus/nodes/0/indices/logsjmeter39/1/index/\_1j.cfs"))  
in  
MMapIndexInput(path="/data/es/NESClus/nodes/0/indices/logsjmeter39/1/index/\_1j.cfs")  
slice=17707:22401))]]]

ES2 logs:  
[2014-06-30 09:03:14,785][WARN][cluster.action.shard] [NES2]  
[logsjmeter87][4] sending failed shard for [logsjmeter87][4],  
node[XVuxg7fzTT-Xy-ArWiapJQ], [R], s[STARTED], indexUUID  
[leU8sfPETKCeQFvntNY9sg], reason [engine failure, message [refresh  
failed][CorruptIndexException[codec mismatch: actual  
codec=Lucene45DocValuesData vs expected codec=Lucene45ValuesMetadata  
(resource:  
BufferedChecksumIndexInput(SlicedIndexInput(SlicedIndexInput(\_12\_Lucene45\_0.dvm  
in  
MMapIndexInput(path="/data/es/NESClus/nodes/0/indices/logsjmeter87/4/index/\_12.cfs"))  
in  
MMapIndexInput(path="/data/es/NESClus/nodes/0/indices/logsjmeter87/4/index/\_12.cfs")  
slice=15224:15300)))]]]

ES3 logs:  
[2014-06-30 09:03:57,639][WARN][cluster.action.shard] [NES3]  
[logsjmeter39][1] sending failed shard for [logsjmeter39][1],  
node[Jjvt3FxwSLWpSCHeIjOedQ], [P], s[STARTED], indexUUID  
[\_PGn7TPETEWllqz71M2ZBA], reason [engine failure, message [refresh  
failed][CorruptIndexException[codec mismatch: actual  
codec=Lucene46FieldInfos vs expected codec=Lucene41PostingsWriterPos  
(resource: SlicedIndexInput(SlicedIndexInput(\_1j\_es090\_0.pos in  
MMapIndexInput(path="/data/es/NESClus/nodes/0/indices/logsjmeter39/1/index/\_1j.cfs"))  
in  
MMapIndexInput(path="/data/es/NESClus/nodes/0/indices/logsjmeter39/1/index/\_1j.cfs")  
slice=17707:22401))]]]

Thanks and Regards  
Sri

On Monday, June 30, 2014 9:07:37 AM UTC-4, sri wrote:

> Hi Simon,
> 
> i am currently using elasticsearch 1.2.1, i am getting the error on all my  
> data nodes, below are the errors:
> 
> [2014-06-30 09:03:57,762][WARN][cluster.action.shard] [NES1]  
> [logsjmeter39][1] received shard failed for [logsjmeter39][1],  
> node[Jjvt3FxwSLWpSCHeIjOedQ], [P], s[STARTED], indexUUID  
> [\_PGn7TPETEWllqz71M2ZBA], reason [engine failure, message [refresh  
> failed][CorruptIndexException[codec mismatch: actual  
> codec=Lucene46FieldInfos vs expected codec=Lucene41PostingsWriterPos  
> (resource: SlicedIndexInput(SlicedIndexInput(\_1j\_es090\_0.pos in  
> MMapIndexInput(path="/data/es/NESClus/nodes/0/indices/logsjmeter39/1/index/\_1j.cfs"))  
> in  
> MMapIndexInput(path="/data/es/NESClus/nodes/0/indices/logsjmeter39/1/index/\_1j.cfs")  
> slice=17707:22401))]]]
> 
> [2014-06-30 09:03:14,785][WARN][cluster.action.shard] [NES2]  
> [logsjmeter87][4] sending failed shard for [logsjmeter87][4],  
> node[XVuxg7fzTT-Xy-ArWiapJQ], [R], s[STARTED], indexUUID  
> [leU8sfPETKCeQFvntNY9sg], reason [engine failure, message [refresh  
> failed][CorruptIndexException[codec mismatch: actual  
> codec=Lucene45DocValuesData vs expected codec=Lucene45ValuesMetadata  
> (resource:  
> BufferedChecksumIndexInput(SlicedIndexInput(SlicedIndexInput(\_12\_Lucene45\_0.dvm  
> in  
> MMapIndexInput(path="/data/es/NESClus/nodes/0/indices/logsjmeter87/4/index/\_12.cfs"))  
> in  
> MMapIndexInput(path="/data/es/NESClus/nodes/0/indices/logsjmeter87/4/index/\_12.cfs")  
> slice=15224:15300)))]]]
> 
> [2014-06-30 09:03:57,639][WARN][cluster.action.shard] [NES3]  
> [logsjmeter39][1] sending failed shard for [logsjmeter39][1],  
> node[Jjvt3FxwSLWpSCHeIjOedQ], [P], s[STARTED], indexUUID  
> [\_PGn7TPETEWllqz71M2ZBA], reason [engine failure, message [refresh  
> failed][CorruptIndexException[codec mismatch: actual  
> codec=Lucene46FieldInfos vs expected codec=Lucene41PostingsWriterPos  
> (resource: SlicedIndexInput(SlicedIndexInput(\_1j\_es090\_0.pos in  
> MMapIndexInput(path="/data/es/NESClus/nodes/0/indices/logsjmeter39/1/index/\_1j.cfs"))  
> in  
> MMapIndexInput(path="/data/es/NESClus/nodes/0/indices/logsjmeter39/1/index/\_1j.cfs")  
> slice=17707:22401))]]]
> 
> Thanks and Regards  
> Sri
> 
> On Monday, June 30, 2014 4:00:23 AM UTC-4, simonw wrote:
> 
> > hey,
> > 
> > thanks for raising this, can you gimme more infos ie. which version you  
> > are using and if that happens only on one shard or on all shards in your  
> > system? It could just be what it says, and index corruption maybe due to HW  
> > failure but there could be other reasons....
> > 
> > simon
> > 
> > On Friday, June 27, 2014 5:20:26 PM UTC+2, sri wrote:
> > 
> > > Hi
> > > 
> > > I am getting the below error my ES cluster quite frequently but am not  
> > > able to understand the actual reason as to why its happening.
> > > 
> > > [2014-06-27 11:12:50,014][WARN][cluster.action.shard] [NES1]  
> > > [logsjmeter62][0] received shard failed for [logsjmeter62][0],  
> > > node[ZqO9OQ8VQ0uGkvXdIeovRg], [P], s[STARTED], indexUUID  
> > > [EfBgCRm8SWu4AtsNPYVXyA], reason [engine failure, message [refresh  
> > > failed][CorruptIndexException[codec mismatch: actual  
> > > codec=Lucene41PostingsWriterDoc vs expected codec=Lucene46FieldInfos  
> > > (resource:  
> > > BufferedChecksumIndexInput(SlicedIndexInput(SlicedIndexInput(\_39.fnm in  
> > > MMapIndexInput(path="/data/es/NESClus/nodes/0/indices/logsjmeter62/0/index/\_39.cfs"))  
> > > in  
> > > MMapIndexInput(path="/data/es/NESClus/nodes/0/indices/logsjmeter62/0/index/\_39.cfs")  
> > > zlice=7371:8755)))]]]
> > > 
> > > Thanks and Regards  
> > > Sri

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<div class="post-metadata">

**Author:** ![sri](https://sea2.discourse-cdn.com/elastic/user_avatar/discuss.elastic.co/sri/32/60716_2.png) [@sri](https://discuss.elastic.co/u/sri)\
**Post date:** [June 30, 2014, 1:21pm UTC](https://discuss.elastic.co/t/corruptindexexception-warn-message-unclear/18377/5 "2014-06-30T13:21:45Z")

</div>

Apologies for this mess.. there is more thing, the document count toggles  
between 3748436 & 3748478 values when the actual count should be 3750000

I was unclear as to why this is happening.

Thanks a lot for the help.

Regards  
Sri

On Monday, June 30, 2014 9:15:16 AM UTC-4, sri wrote:

> MORE INFO:
> 
> I grepped only the 'WARN' messages.
> 
> MASTER Node(ES1) logs:  
> [2014-06-30 09:02:36,942][WARN][index.engine.internal] [NES1]  
> [logsjmeter14][2] failed engine [refresh failed]  
> [2014-06-30 09:02:37,715][WARN][cluster.action.shard] [NES1]  
> [logsjmeter14][2] sending failed shard for [logsjmeter14][2],  
> node[dbPhRQoQQE-Tlgict\_gfeg], [P], s[STARTED], indexUUID  
> [lXE8Wre0S3KxjGs9Jov1tw], reason [engine failure, message [refresh  
> failed][CorruptIndexException[codec header mismatch: actual header=0 vs  
> expected header=1071082519 (resource:  
> BufferedChecksumIndexInput(SlicedIndexInput(SlicedIndexInput(\_1a\_es090\_0.blm  
> in  
> MMapIndexInput(path="/data/es/NESClus/nodes/0/indices/logsjmeter14/2/index/\_1a.cfs"))  
> in  
> MMapIndexInput(path="/data/es/NESClus/nodes/0/indices/logsjmeter14/2/index/\_1a.cfs")  
> slice=29488:29662)))]]]  
> [2014-06-30 09:02:37,717][WARN][cluster.action.shard] [NES1]  
> [logsjmeter14][2] received shard failed for [logsjmeter14][2],  
> node[dbPhRQoQQE-Tlgict\_gfeg], [P], s[STARTED], indexUUID  
> [lXE8Wre0S3KxjGs9Jov1tw], reason [engine failure, message [refresh  
> failed][CorruptIndexException[codec header mismatch: actual header=0 vs  
> expected header=1071082519 (resource:  
> BufferedChecksumIndexInput(SlicedIndexInput(SlicedIndexInput(\_1a\_es090\_0.blm  
> in  
> MMapIndexInput(path="/data/es/NESClus/nodes/0/indices/logsjmeter14/2/index/\_1a.cfs"))  
> in  
> MMapIndexInput(path="/data/es/NESClus/nodes/0/indices/logsjmeter14/2/index/\_1a.cfs")  
> slice=29488:29662)))]]]  
> [2014-06-30 09:03:14,809][WARN][cluster.action.shard] [NES1]  
> [logsjmeter87][4] received shard failed for [logsjmeter87][4],  
> node[XVuxg7fzTT-Xy-ArWiapJQ], [R], s[STARTED], indexUUID  
> [leU8sfPETKCeQFvntNY9sg], reason [engine failure, message [refresh  
> failed][CorruptIndexException[codec mismatch: actual  
> codec=Lucene45DocValuesData vs expected codec=Lucene45ValuesMetadata  
> (resource:  
> BufferedChecksumIndexInput(SlicedIndexInput(SlicedIndexInput(\_12\_Lucene45\_0.dvm  
> in  
> MMapIndexInput(path="/data/es/NESClus/nodes/0/indices/logsjmeter87/4/index/\_12.cfs"))  
> in  
> MMapIndexInput(path="/data/es/NESClus/nodes/0/indices/logsjmeter87/4/index/\_12.cfs")  
> slice=15224:15300)))]]]  
> [2014-06-30 09:03:24,021][WARN][index.engine.internal] [NES1]  
> [logsjmeter65][1] failed engine [refresh failed]  
> [2014-06-30 09:03:24,371][WARN][cluster.action.shard] [NES1]  
> [logsjmeter65][1] sending failed shard for [logsjmeter65][1],  
> node[dbPhRQoQQE-Tlgict\_gfeg], [P], s[STARTED], indexUUID  
> [WXUHlSGVQ-GPGSKg0oWPIw], reason [engine failure, message [refresh  
> failed][CorruptIndexException[codec mismatch: actual codec=XBloomFilter vs  
> expected codec=Lucene41NormsMetadata (resource:  
> BufferedChecksumIndexInput(SlicedIndexInput(SlicedIndexInput(\_1b.nvm in  
> MMapIndexInput(path="/data/es/NESClus/nodes/0/indices/logsjmeter65/1/index/\_1b.cfs"))  
> in  
> MMapIndexInput(path="/data/es/NESClus/nodes/0/indices/logsjmeter65/1/index/\_1b.cfs")  
> slice=15048:15209)))]]]  
> [2014-06-30 09:03:24,371][WARN][cluster.action.shard] [NES1]  
> [logsjmeter65][1] received shard failed for [logsjmeter65][1],  
> node[dbPhRQoQQE-Tlgict\_gfeg], [P], s[STARTED], indexUUID  
> [WXUHlSGVQ-GPGSKg0oWPIw], reason [engine failure, message [refresh  
> failed][CorruptIndexException[codec mismatch: actual codec=XBloomFilter vs  
> expected codec=Lucene41NormsMetadata (resource:  
> BufferedChecksumIndexInput(SlicedIndexInput(SlicedIndexInput(\_1b.nvm in  
> MMapIndexInput(path="/data/es/NESClus/nodes/0/indices/logsjmeter65/1/index/\_1b.cfs"))  
> in  
> MMapIndexInput(path="/data/es/NESClus/nodes/0/indices/logsjmeter65/1/index/\_1b.cfs")  
> slice=15048:15209)))]]]  
> [2014-06-30 09:03:31,778][WARN][index.engine.internal] [NES1]  
> [logsjmeter79][0] failed engine [refresh failed]  
> [2014-06-30 09:03:32,084][WARN][cluster.action.shard] [NES1]  
> [logsjmeter79][0] sending failed shard for [logsjmeter79][0],  
> node[dbPhRQoQQE-Tlgict\_gfeg], [R], s[STARTED], indexUUID  
> [NZgUPNQnT0Ss0Lhk9PUz1w], reason [engine failure, message [refresh  
> failed][CorruptIndexException[codec mismatch: actual  
> codec=BLOCK\_TREE\_TERMS\_INDEX vs expected codec=CompoundFileWriterEntries  
> (resource:  
> BufferedChecksumIndexInput(MMapIndexInput(path="/data/es/NESClus/nodes/0/indices/logsjmeter79/0/index/\_z.cfe")))]]]  
> [2014-06-30 09:03:32,086][WARN][cluster.action.shard] [NES1]  
> [logsjmeter79][0] received shard failed for [logsjmeter79][0],  
> node[dbPhRQoQQE-Tlgict\_gfeg], [R], s[STARTED], indexUUID  
> [NZgUPNQnT0Ss0Lhk9PUz1w], reason [engine failure, message [refresh  
> failed][CorruptIndexException[codec mismatch: actual  
> codec=BLOCK\_TREE\_TERMS\_INDEX vs expected codec=CompoundFileWriterEntries  
> (resource:  
> BufferedChecksumIndexInput(MMapIndexInput(path="/data/es/NESClus/nodes/0/indices/logsjmeter79/0/index/\_z.cfe")))]]]  
> [2014-06-30 09:03:33,865][WARN][monitor.jvm] [NES1]  
> [gc][young][228848][7461] duration [1.7s], collections [1]/[2s], total  
> [1.7s]/[4.4m], memory [3gb]-\>[2.8gb]/[3.9gb], all\_pools {[young]  
> [168.5mb]-\>[30.6mb]/[266.2mb]}{[survivor]  
> [27.8mb]-\>[29.2mb]/[33.2mb]}{[old] [2.8gb]-\>[2.8gb]/[3.6gb]}  
> [2014-06-30 09:03:57,762][WARN][cluster.action.shard] [NES1]  
> [logsjmeter39][1] received shard failed for [logsjmeter39][1],  
> node[Jjvt3FxwSLWpSCHeIjOedQ], [P], s[STARTED], indexUUID  
> [\_PGn7TPETEWllqz71M2ZBA], reason [engine failure, message [refresh  
> failed][CorruptIndexException[codec mismatch: actual  
> codec=Lucene46FieldInfos vs expected codec=Lucene41PostingsWriterPos  
> (resource: SlicedIndexInput(SlicedIndexInput(\_1j\_es090\_0.pos in  
> MMapIndexInput(path="/data/es/NESClus/nodes/0/indices/logsjmeter39/1/index/\_1j.cfs"))  
> in  
> MMapIndexInput(path="/data/es/NESClus/nodes/0/indices/logsjmeter39/1/index/\_1j.cfs")  
> slice=17707:22401))]]]
> 
> ES2 logs:  
> [2014-06-30 09:03:14,785][WARN][cluster.action.shard] [NES2]  
> [logsjmeter87][4] sending failed shard for [logsjmeter87][4],  
> node[XVuxg7fzTT-Xy-ArWiapJQ], [R], s[STARTED], indexUUID  
> [leU8sfPETKCeQFvntNY9sg], reason [engine failure, message [refresh  
> failed][CorruptIndexException[codec mismatch: actual  
> codec=Lucene45DocValuesData vs expected codec=Lucene45ValuesMetadata  
> (resource:  
> BufferedChecksumIndexInput(SlicedIndexInput(SlicedIndexInput(\_12\_Lucene45\_0.dvm  
> in  
> MMapIndexInput(path="/data/es/NESClus/nodes/0/indices/logsjmeter87/4/index/\_12.cfs"))  
> in  
> MMapIndexInput(path="/data/es/NESClus/nodes/0/indices/logsjmeter87/4/index/\_12.cfs")  
> slice=15224:15300)))]]]
> 
> ES3 logs:  
> [2014-06-30 09:03:57,639][WARN][cluster.action.shard] [NES3]  
> [logsjmeter39][1] sending failed shard for [logsjmeter39][1],  
> node[Jjvt3FxwSLWpSCHeIjOedQ], [P], s[STARTED], indexUUID  
> [\_PGn7TPETEWllqz71M2ZBA], reason [engine failure, message [refresh  
> failed][CorruptIndexException[codec mismatch: actual  
> codec=Lucene46FieldInfos vs expected codec=Lucene41PostingsWriterPos  
> (resource: SlicedIndexInput(SlicedIndexInput(\_1j\_es090\_0.pos in  
> MMapIndexInput(path="/data/es/NESClus/nodes/0/indices/logsjmeter39/1/index/\_1j.cfs"))  
> in  
> MMapIndexInput(path="/data/es/NESClus/nodes/0/indices/logsjmeter39/1/index/\_1j.cfs")  
> slice=17707:22401))]]]
> 
> Thanks and Regards  
> Sri
> 
> On Monday, June 30, 2014 9:07:37 AM UTC-4, sri wrote:
> 
> > Hi Simon,
> > 
> > i am currently using elasticsearch 1.2.1, i am getting the error on all  
> > my data nodes, below are the errors:
> > 
> > [2014-06-30 09:03:57,762][WARN][cluster.action.shard] [NES1]  
> > [logsjmeter39][1] received shard failed for [logsjmeter39][1],  
> > node[Jjvt3FxwSLWpSCHeIjOedQ], [P], s[STARTED], indexUUID  
> > [\_PGn7TPETEWllqz71M2ZBA], reason [engine failure, message [refresh  
> > failed][CorruptIndexException[codec mismatch: actual  
> > codec=Lucene46FieldInfos vs expected codec=Lucene41PostingsWriterPos  
> > (resource: SlicedIndexInput(SlicedIndexInput(\_1j\_es090\_0.pos in  
> > MMapIndexInput(path="/data/es/NESClus/nodes/0/indices/logsjmeter39/1/index/\_1j.cfs"))  
> > in  
> > MMapIndexInput(path="/data/es/NESClus/nodes/0/indices/logsjmeter39/1/index/\_1j.cfs")  
> > slice=17707:22401))]]]
> > 
> > [2014-06-30 09:03:14,785][WARN][cluster.action.shard] [NES2]  
> > [logsjmeter87][4] sending failed shard for [logsjmeter87][4],  
> > node[XVuxg7fzTT-Xy-ArWiapJQ], [R], s[STARTED], indexUUID  
> > [leU8sfPETKCeQFvntNY9sg], reason [engine failure, message [refresh  
> > failed][CorruptIndexException[codec mismatch: actual  
> > codec=Lucene45DocValuesData vs expected codec=Lucene45ValuesMetadata  
> > (resource:  
> > BufferedChecksumIndexInput(SlicedIndexInput(SlicedIndexInput(\_12\_Lucene45\_0.dvm  
> > in  
> > MMapIndexInput(path="/data/es/NESClus/nodes/0/indices/logsjmeter87/4/index/\_12.cfs"))  
> > in  
> > MMapIndexInput(path="/data/es/NESClus/nodes/0/indices/logsjmeter87/4/index/\_12.cfs")  
> > slice=15224:15300)))]]]
> > 
> > [2014-06-30 09:03:57,639][WARN][cluster.action.shard] [NES3]  
> > [logsjmeter39][1] sending failed shard for [logsjmeter39][1],  
> > node[Jjvt3FxwSLWpSCHeIjOedQ], [P], s[STARTED], indexUUID  
> > [\_PGn7TPETEWllqz71M2ZBA], reason [engine failure, message [refresh  
> > failed][CorruptIndexException[codec mismatch: actual  
> > codec=Lucene46FieldInfos vs expected codec=Lucene41PostingsWriterPos  
> > (resource: SlicedIndexInput(SlicedIndexInput(\_1j\_es090\_0.pos in  
> > MMapIndexInput(path="/data/es/NESClus/nodes/0/indices/logsjmeter39/1/index/\_1j.cfs"))  
> > in  
> > MMapIndexInput(path="/data/es/NESClus/nodes/0/indices/logsjmeter39/1/index/\_1j.cfs")  
> > slice=17707:22401))]]]
> > 
> > Thanks and Regards  
> > Sri
> > 
> > On Monday, June 30, 2014 4:00:23 AM UTC-4, simonw wrote:
> > 
> > > hey,
> > > 
> > > thanks for raising this, can you gimme more infos ie. which version you  
> > > are using and if that happens only on one shard or on all shards in your  
> > > system? It could just be what it says, and index corruption maybe due to HW  
> > > failure but there could be other reasons....
> > > 
> > > simon
> > > 
> > > On Friday, June 27, 2014 5:20:26 PM UTC+2, sri wrote:
> > > 
> > > > Hi
> > > > 
> > > > I am getting the below error my ES cluster quite frequently but am not  
> > > > able to understand the actual reason as to why its happening.
> > > > 
> > > > [2014-06-27 11:12:50,014][WARN][cluster.action.shard] [NES1]  
> > > > [logsjmeter62][0] received shard failed for [logsjmeter62][0],  
> > > > node[ZqO9OQ8VQ0uGkvXdIeovRg], [P], s[STARTED], indexUUID  
> > > > [EfBgCRm8SWu4AtsNPYVXyA], reason [engine failure, message [refresh  
> > > > failed][CorruptIndexException[codec mismatch: actual  
> > > > codec=Lucene41PostingsWriterDoc vs expected codec=Lucene46FieldInfos  
> > > > (resource:  
> > > > BufferedChecksumIndexInput(SlicedIndexInput(SlicedIndexInput(\_39.fnm in  
> > > > MMapIndexInput(path="/data/es/NESClus/nodes/0/indices/logsjmeter62/0/index/\_39.cfs"))  
> > > > in  
> > > > MMapIndexInput(path="/data/es/NESClus/nodes/0/indices/logsjmeter62/0/index/\_39.cfs")  
> > > > zlice=7371:8755)))]]]
> > > > 
> > > > Thanks and Regards  
> > > > Sri

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<div class="post-metadata">

**Author:** ![system](https://us1.discourse-cdn.com/elastic/original/3X/1/a/1ac57faf039f6b580b3f104ef42a2a89e41014de.png) [@system](https://discuss.elastic.co/u/system)\
**Post date:** [July 6, 2017, 1:18am UTC](https://discuss.elastic.co/t/corruptindexexception-warn-message-unclear/18377/6 "2017-07-06T01:18:55Z")

</div>