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https://issues.apache.org/jira/browse/DIRSERVER-2172?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=15965451#comment-15965451
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Mehdi S edited comment on DIRSERVER-2172 at 4/12/17 6:33 AM:
-------------------------------------------------------------

Hi,
We are facing same problem with repair command, after repair process we lose 
many users & roles (more than 50%) in PRODUCTION and we have not yet a 
replication, so no way to restore  corrupted data :(

Below unsuccessful workarounds used "Independently" :
- Repair command : data missed after repair 
- Partition-plumber + remove all  our_instance/partitions/*.db except master.db 
- Export Data to reinject in clean partition : ldapsearch returns some data but 
not all

The problem started when we tried to insert an old user already deleted, 
apacheDS responding that "entry already exists", we have find some traces in 
our_instance/partitions/1.3.6.1.4.1.18060.0.4.1.2.50.db (I think apacheRdn 
attribute) but not in the master.db

have you any suggestion ? ApacheDS still running in production but indexes are 
broken.


ENV : unix redhat 5  & Java 8 & ApacheDS 2.0.0-M22


was (Author: mehdi21):
Hi,
We are facing same problem with repair command, after repair process we lose 
many users & roles (more than 50%) in PRODUCTION and we have not yet a 
replication, so no way to restore  corrupted data :(

Below unsuccessful workarounds used "Independently" :
- Repair command : data missed after repair 
- Partition-plumber + remove all  our_instance/partitions/*.db except master.db 
- Export Data to reinject in clean partition : ldapsearch returns some data but 
not all

NB: when we try to insert an old user already deleted, apacheDS is responding 
that "entryalready exists", we have find some traces in 
our_instance/partitions/1.3.6.1.4.1.18060.0.4.1.2.50.db (I think apacheRdn 
attribute) but not in the master.db

have you any suggestion ? ApacheDS still running in production but indexes are 
broken.


ENV : unix redhat 5  & Java 8 & ApacheDS 2.0.0-M22

> ApacheDS 2.0.0M12 in production, getting ERR_554 double get for block  block 
> 3,474
> ----------------------------------------------------------------------------------
>
>                 Key: DIRSERVER-2172
>                 URL: https://issues.apache.org/jira/browse/DIRSERVER-2172
>             Project: Directory ApacheDS
>          Issue Type: Bug
>          Components: ldap
>         Environment: GNU/Linux x86_64
>            Reporter: sourabh sihare
>            Priority: Critical
>         Attachments: wrapper.conf
>
>
> We have upgraded apacheds from 2.0.0-M23 assuming that will fix the issue 
> with data getting corrupt but we are still facing the same issue.The apacheds 
> server keeps running but data does not load fully from front end like 400 
> users instead of actual 3000+ users.
> -> As a workaround we take backup of partition daily and when the issue 
> occurs we replace the partition from backed-up partition and restart the 
> server.
> -> From apacheds.log we get below error trace-
> [16:13:21] DEBUG [org.apache.directory.server.OPERATION_LOG] - << 
> CompareOperation successful
> [16:13:21] DEBUG [org.apache.directory.server.OPERATION_TIME] - Compare 
> operation took 183000 ns
> [16:13:21] DEBUG [org.apache.directory.server.OPERATION_LOG] - >> 
> CompareOperation : CompareContext for Dn 'uid=GA1346,ou=users,o=sccm', oid : 
> <objectClass>, value :'groupOfNames'
> [16:13:21] DEBUG [org.apache.directory.server.OPERATION_LOG] - >> 
> LookupOperation : FilteringOperationContext for Dn 
> 'uid=GA1346,ou=users,o=sccm', +, *
> [16:13:21] WARN [org.apache.directory.server.ldap.LdapProtocolHandler] - 
> Unexpected exception forcing session to close: sending disconnect notice to 
> client.
> java.lang.Error: ERR_554 double get for block 3,474
>         at jdbm.recman.RecordFile.get(RecordFile.java:185)
>         at 
> jdbm.recman.PhysicalRowIdManager.allocNew(PhysicalRowIdManager.java:202)
>         at 
> jdbm.recman.PhysicalRowIdManager.alloc(PhysicalRowIdManager.java:177)
>         at 
> jdbm.recman.PhysicalRowIdManager.update(PhysicalRowIdManager.java:101)
>         at jdbm.recman.BaseRecordManager.update(BaseRecordManager.java:281)
>         at 
> jdbm.recman.CacheRecordManager$CacheListener.cacheObjectEvicted(CacheRecordManager.java:459)
>         at 
> jdbm.recman.CacheRecordManager$CacheListener.cacheObjectEvicted(CacheRecordManager.java:444)
>         at jdbm.helper.MRU.purgeEntry(MRU.java:310)
>         at jdbm.helper.MRU.put(MRU.java:128)
>         at jdbm.recman.CacheRecordManager.fetch(CacheRecordManager.java:268)
>         at jdbm.btree.BPage.loadBPage(BPage.java:949)
>         at jdbm.btree.BPage.find(BPage.java:280)
>         at jdbm.btree.BTree.find(BTree.java:413)
>         at 
> org.apache.directory.server.core.partition.impl.btree.jdbm.JdbmTable.get(JdbmTable.java:343)
>         at 
> org.apache.directory.server.core.partition.impl.btree.AbstractBTreePartition.fetch(AbstractBTreePartition.java:1274)
>         at 
> org.apache.directory.server.core.partition.impl.btree.AbstractBTreePartition.lookup(AbstractBTreePartition.java:1202)
>         at 
> org.apache.directory.server.core.shared.partition.DefaultPartitionNexus.lookup(DefaultPartitionNexus.java:464)
>         at 
> org.apache.directory.server.core.api.interceptor.BaseInterceptor$1.lookup(BaseInterceptor.java:161)
>         at 
> org.apache.directory.server.core.api.interceptor.BaseInterceptor.next(BaseInterceptor.java:483)
>         at 
> org.apache.directory.server.core.collective.CollectiveAttributeInterceptor.lookup(CollectiveAttributeInterceptor.java:143)
>         at 
> org.apache.directory.server.core.api.interceptor.BaseInterceptor.next(BaseInterceptor.java:483)
>         at 
> org.apache.directory.server.core.operational.OperationalAttributeInterceptor.lookup(OperationalAttributeInterceptor.java:329)
>         at 
> org.apache.directory.server.core.api.interceptor.BaseInterceptor.next(BaseInterceptor.java:483)
>         at 
> org.apache.directory.server.core.schema.SchemaInterceptor.lookup(SchemaInterceptor.java:1142)
>         at 
> org.apache.directory.server.core.api.interceptor.BaseInterceptor.next(BaseInterceptor.java:483)
>         at 
> org.apache.directory.server.core.authz.DefaultAuthorizationInterceptor.lookup(DefaultAuthorizationInterceptor.java:231)
>         at 
> org.apache.directory.server.core.api.interceptor.BaseInterceptor.next(BaseInterceptor.java:483)
>         at 
> org.apache.directory.server.core.authz.AciAuthorizationInterceptor.lookup(AciAuthorizationInterceptor.java:779)
>         at 
> org.apache.directory.server.core.api.interceptor.BaseInterceptor.next(BaseInterceptor.java:483)
>         at 
> org.apache.directory.server.core.authn.AuthenticationInterceptor.lookup(AuthenticationInterceptor.java:852)
>         at 
> org.apache.directory.server.core.api.interceptor.BaseInterceptor.next(BaseInterceptor.java:483)
>         at 
> org.apache.directory.server.core.normalization.NormalizationInterceptor.lookup(NormalizationInterceptor.java:196)
>         at 
> org.apache.directory.server.core.DefaultOperationManager.lookup(DefaultOperationManager.java:775)
> at 
> org.apache.directory.server.core.shared.DefaultCoreSession.lookup(DefaultCoreSession.java:560)
>         at 
> org.apache.directory.server.core.DefaultOperationManager.getOriginalEntry(DefaultOperationManager.java:194)
>         at 
> org.apache.directory.server.core.DefaultOperationManager.compare(DefaultOperationManager.java:531)
>         at 
> org.apache.directory.server.core.shared.DefaultCoreSession.compare(DefaultCoreSession.java:885)
>         at 
> org.apache.directory.server.ldap.handlers.request.CompareRequestHandler.handle(CompareRequestHandler.java:52)
>         at 
> org.apache.directory.server.ldap.handlers.request.CompareRequestHandler.handle(CompareRequestHandler.java:38)
>         at 
> org.apache.directory.server.ldap.handlers.LdapRequestHandler.handleMessage(LdapRequestHandler.java:207)
>         at 
> org.apache.directory.server.ldap.handlers.LdapRequestHandler.handleMessage(LdapRequestHandler.java:56)
>         at 
> org.apache.mina.handler.demux.DemuxingIoHandler.messageReceived(DemuxingIoHandler.java:243)
>         at 
> org.apache.directory.server.ldap.LdapProtocolHandler.messageReceived(LdapProtocolHandler.java:216)
>         at 
> org.apache.mina.core.filterchain.DefaultIoFilterChain$TailFilter.messageReceived(DefaultIoFilterChain.java:854)
>         at 
> org.apache.mina.core.filterchain.DefaultIoFilterChain.callNextMessageReceived(DefaultIoFilterChain.java:542)
>         at 
> org.apache.mina.core.filterchain.DefaultIoFilterChain.access$1300(DefaultIoFilterChain.java:48)
>         at 
> org.apache.mina.core.filterchain.DefaultIoFilterChain$EntryImpl$1.messageReceived(DefaultIoFilterChain.java:943)
>         at 
> org.apache.mina.core.filterchain.IoFilterEvent.fire(IoFilterEvent.java:74)
>         at org.apache.mina.core.session.IoEvent.run(IoEvent.java:63)
>         at 
> org.apache.mina.filter.executor.UnorderedThreadPoolExecutor$Worker.runTask(UnorderedThreadPoolExecutor.java:476)
>         at 
> org.apache.mina.filter.executor.UnorderedThreadPoolExecutor$Worker.run(UnorderedThreadPoolExecutor.java:430)
>         at java.lang.Thread.run(Thread.java:745)
>  



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