Shards deleted and new index created all for fun


(Alistair Prestidge) #1

I have an index that has 9,481,043 docs. It is a real pain in my backside
for the last few days.

Firstly this index has an alias. I restarted the servers last week and
after a few days noticed that after the restart there was a new index with
the same name as the alias and my data was going into this new index and
not the correct one.

That was odd enough but now I had to restart the cluster again today due to
problems with the same index and now it has deleted, from disk, 2 of the 4
shards. from both of my instances in the cluster.

It also deleted the index that it created with the alias name so I have now
lost some data completely.

Unfortunately this data only exists in ES so I am unable to re index the
data.

I had errors in the log file that look like this

[INFO ][gateway.local.state.meta ] [HOST_NAME] [INDEX_NAME] dangling index, 
exists on local file system, but not in cluster metadata, scheduling to 
delete in [2h], auto import to cluster state [YES]

These, below, happen on restarting an instance.

[2014-07-21 12:34:19,507][INFO ][cluster.metadata         ] [i-3e83217e] 
[index_name_alias] deleting index
[2014-07-21 12:34:19,562][INFO ][cluster.metadata         ] [i-3e83217e] 
[index_name_alias] creating index, cause [auto(bulk api)], shards [5]/[1], 
mappings []
[2014-07-21 12:34:19,738][INFO ][cluster.metadata         ] [i-3e83217e] 
[index_name_alias] update_mapping [search] (dynamic)
[2014-07-21 12:34:20,827][INFO ][cluster.metadata         ] [i-3e83217e] 
[index_name_alias] deleting index
[2014-07-21 12:34:20,860][INFO ][cluster.metadata         ] [i-3e83217e] 
[index_name_alias] creating index, cause [auto(bulk api)], shards [5]/[1], 
mappings []
[2014-07-21 12:34:20,973][INFO ][cluster.metadata         ] [i-3e83217e] 
[index_name_alias] update_mapping [search] (dynamic)
[2014-07-21 12:34:21,391][INFO ][cluster.metadata         ] [i-3e83217e] 
[index_name_alias] deleting index
[2014-07-21 12:34:21,424][INFO ][cluster.metadata         ] [i-3e83217e] 
[index_name_alias] creating index, cause [auto(bulk api)], shards [5]/[1], 
mappings []
[2014-07-21 12:34:21,544][INFO ][cluster.metadata         ] [i-3e83217e] 
[index_name_alias] update_mapping [search] (dynamic)
[2014-07-21 12:34:26,901][INFO ][cluster.metadata         ] [i-3e83217e] 
[index_name_alias] deleting index
[2014-07-21 12:34:26,950][INFO ][cluster.metadata         ] [i-3e83217e] 
[index_name_alias] creating index, cause [auto(bulk api)], shards [5]/[1], 
mappings []
[2014-07-21 12:34:27,060][INFO ][cluster.metadata         ] [i-3e83217e] 
[index_name_alias] update_mapping [search] (dynamic)
[2014-07-21 12:34:28,084][INFO ][cluster.metadata         ] [i-3e83217e] 
[index_name_alias] deleting index
[2014-07-21 12:34:28,118][INFO ][cluster.metadata         ] [i-3e83217e] 
[index_name_alias] creating index, cause [auto(bulk api)], shards [5]/[1], 
mappings []
[2014-07-21 12:34:28,244][INFO ][cluster.metadata         ] [i-3e83217e] 
[index_name_alias] update_mapping [search] (dynamic)
[2014-07-21 12:34:29,179][INFO ][cluster.metadata         ] [i-3e83217e] 
[index_name_alias] deleting index
[2014-07-21 12:34:29,349][INFO ][cluster.metadata         ] [i-3e83217e] 
[index_name_alias] creating index, cause [auto(bulk api)], shards [5]/[1], 
mappings []
[2014-07-21 12:34:29,555][INFO ][cluster.metadata         ] [i-3e83217e] 
[index_name_alias] update_mapping [search] (dynamic)
[2014-07-21 12:34:30,113][INFO ][cluster.metadata         ] [i-3e83217e] 
[index_name_alias] deleting index
[2014-07-21 12:34:30,157][INFO ][cluster.metadata         ] [i-3e83217e] 
[index_name_alias] creating index, cause [auto(bulk api)], shards [5]/[1], 
mappings []
[2014-07-21 12:34:30,312][INFO ][cluster.metadata         ] [i-3e83217e] 
[index_name_alias] update_mapping [search] (dynamic)
[2014-07-21 12:34:30,876][INFO ][cluster.metadata         ] [i-3e83217e] 
[index_name_alias] deleting index
[2014-07-21 12:34:30,922][INFO ][cluster.metadata         ] [i-3e83217e] 
[index_name_alias] creating index, cause [auto(bulk api)], shards [5]/[1], 
mappings []
[2014-07-21 12:34:31,055][INFO ][cluster.metadata         ] [i-3e83217e] 
[index_name_alias] update_mapping [search] (dynamic)
[2014-07-21 12:34:32,770][INFO ][cluster.metadata         ] [i-3e83217e] 
[index_name_alias] deleting index
[2014-07-21 12:34:32,807][INFO ][cluster.metadata         ] [i-3e83217e] 
[index_name_alias] creating index, cause [api], shards [4]/[1], mappings []
[2014-07-21 12:34:32,894][INFO ][cluster.metadata         ] [i-3e83217e] 
[index_name_alias] update_mapping [search] (dynamic)
[2014-07-21 12:34:33,388][INFO ][cluster.metadata         ] [i-3e83217e] 
[index_name_alias] deleting index
[2014-07-21 12:34:33,420][INFO ][cluster.metadata         ] [i-3e83217e] 
[index_name_alias] creating index, cause [auto(bulk api)], shards [5]/[1], 
mappings []
[2014-07-21 12:34:33,554][INFO ][cluster.metadata         ] [i-3e83217e] 
[index_name_alias] update_mapping [search] (dynamic)

This all started because I was getting these errors, so I restarted the
cluster and it appeared to fix it but has caused no end of issues but only
with one index. I have about 30 index on this cluster

[2014-07-16 00:18:38,786][ERROR][indices.fielddata.breaker] [i-3e83217e] 
New used memory 2809492636 [2.6gb] from field [date_from] would be larger 
than configured breaker: 2809371033 [2.6gb], breaking
</pre




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(system) #2