SOLR cores are getting locked

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SOLR cores are getting locked

Gunalan V
Hello,

I'm using SOLR 6.5.1 and I have 2 SOLR nodes in SOLRCloud and created
collection using the below [1] and it was created successfully during
initial time but next day I tried to restart the nodes in SOLR cloud. When
I start the first node the collection health is active but when I start the
second node the collection is became down and could see the locks in the
logs [2].

Also I have the set the solr home in zookeeper using the command [3].

Did anyone came across this issue? If so please let me know how to fix it.


[1]
http://localhost:8983/solr/admin/collections?action=CREATE&name=testcollection&numShards=2&replicationFactor=2&maxShardsPerNode=2&collection.configName=testconfigs


[2]  Caused by: org.apache.lucene.store.LockObtainFailedException: Index
dir
'/data01/solr/solr-6.5.1/server/solr/testcollection_shard1_replica2/data/index/'
of core 'testcollection_shard1_replica2' is already locked. The most likely
cause is another Solr server (or another solr core in this server) also
configured to use this directory; other possible causes may be specific to
lockType: native
        at org.apache.solr.core.SolrCore.initIndex(SolrCore.java:713)


[3]  ./solr zk cp file:/data01/solr/solr-6.5.1/server/solr/solr.xml
zk:/solr.xml -z 10.120.166.12:2181,10.120.166.12:2182,10.120.166.12:2183



Thanks,
GVK
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Re: SOLR cores are getting locked

Erick Erickson
You might be hitting SOLR-11297, which is fixed in Solr 7.0.1. The
patch should back-port cleanly to 6x versions though.

Best,
Erick

On Thu, Oct 12, 2017 at 12:14 AM, Gunalan V <[hidden email]> wrote:

> Hello,
>
> I'm using SOLR 6.5.1 and I have 2 SOLR nodes in SOLRCloud and created
> collection using the below [1] and it was created successfully during
> initial time but next day I tried to restart the nodes in SOLR cloud. When
> I start the first node the collection health is active but when I start the
> second node the collection is became down and could see the locks in the
> logs [2].
>
> Also I have the set the solr home in zookeeper using the command [3].
>
> Did anyone came across this issue? If so please let me know how to fix it.
>
>
> [1]
> http://localhost:8983/solr/admin/collections?action=CREATE&name=testcollection&numShards=2&replicationFactor=2&maxShardsPerNode=2&collection.configName=testconfigs
>
>
> [2]  Caused by: org.apache.lucene.store.LockObtainFailedException: Index
> dir
> '/data01/solr/solr-6.5.1/server/solr/testcollection_shard1_replica2/data/index/'
> of core 'testcollection_shard1_replica2' is already locked. The most likely
> cause is another Solr server (or another solr core in this server) also
> configured to use this directory; other possible causes may be specific to
> lockType: native
>         at org.apache.solr.core.SolrCore.initIndex(SolrCore.java:713)
>
>
> [3]  ./solr zk cp file:/data01/solr/solr-6.5.1/server/solr/solr.xml
> zk:/solr.xml -z 10.120.166.12:2181,10.120.166.12:2182,10.120.166.12:2183
>
>
>
> Thanks,
> GVK
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Re: SOLR cores are getting locked

Gunalan V
Thanks Erick,

I'm using the one VM where all SOLRCloud and Zookeeper nodes are running.

I have two solr nodes in solrcloud. Just wanted to check do I need to
create different solr home directory using -s param for each SOLR nodes ?

If yes kindly share me some documentation to configure separate node
directories.


GVK


On Thu, Oct 12, 2017 at 10:17 AM, Erick Erickson <[hidden email]>
wrote:

> You might be hitting SOLR-11297, which is fixed in Solr 7.0.1. The
> patch should back-port cleanly to 6x versions though.
>
> Best,
> Erick
>
> On Thu, Oct 12, 2017 at 12:14 AM, Gunalan V <[hidden email]> wrote:
> > Hello,
> >
> > I'm using SOLR 6.5.1 and I have 2 SOLR nodes in SOLRCloud and created
> > collection using the below [1] and it was created successfully during
> > initial time but next day I tried to restart the nodes in SOLR cloud.
> When
> > I start the first node the collection health is active but when I start
> the
> > second node the collection is became down and could see the locks in the
> > logs [2].
> >
> > Also I have the set the solr home in zookeeper using the command [3].
> >
> > Did anyone came across this issue? If so please let me know how to fix
> it.
> >
> >
> > [1]
> > http://localhost:8983/solr/admin/collections?action=
> CREATE&name=testcollection&numShards=2&replicationFactor=
> 2&maxShardsPerNode=2&collection.configName=testconfigs
> >
> >
> > [2]  Caused by: org.apache.lucene.store.LockObtainFailedException: Index
> > dir
> > '/data01/solr/solr-6.5.1/server/solr/testcollection_
> shard1_replica2/data/index/'
> > of core 'testcollection_shard1_replica2' is already locked. The most
> likely
> > cause is another Solr server (or another solr core in this server) also
> > configured to use this directory; other possible causes may be specific
> to
> > lockType: native
> >         at org.apache.solr.core.SolrCore.initIndex(SolrCore.java:713)
> >
> >
> > [3]  ./solr zk cp file:/data01/solr/solr-6.5.1/server/solr/solr.xml
> > zk:/solr.xml -z 10.120.166.12:2181,10.120.166.12:2182,10.120.166.12:2183
> >
> >
> >
> > Thanks,
> > GVK
>
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Re: SOLR cores are getting locked

Erick Erickson
bin/solr start -help

will give you a lot of info. But yes, the -s option is what you should
use. Here's one of my batch files I used to start various cloud
examples:

bin/solr start -c -z localhost:2181 -p 898 -s example/cloud/node1/solr

On Sun, Oct 15, 2017 at 11:48 PM, Gunalan V <[hidden email]> wrote:

> Thanks Erick,
>
> I'm using the one VM where all SOLRCloud and Zookeeper nodes are running.
>
> I have two solr nodes in solrcloud. Just wanted to check do I need to
> create different solr home directory using -s param for each SOLR nodes ?
>
> If yes kindly share me some documentation to configure separate node
> directories.
>
>
> GVK
>
>
> On Thu, Oct 12, 2017 at 10:17 AM, Erick Erickson <[hidden email]>
> wrote:
>
>> You might be hitting SOLR-11297, which is fixed in Solr 7.0.1. The
>> patch should back-port cleanly to 6x versions though.
>>
>> Best,
>> Erick
>>
>> On Thu, Oct 12, 2017 at 12:14 AM, Gunalan V <[hidden email]> wrote:
>> > Hello,
>> >
>> > I'm using SOLR 6.5.1 and I have 2 SOLR nodes in SOLRCloud and created
>> > collection using the below [1] and it was created successfully during
>> > initial time but next day I tried to restart the nodes in SOLR cloud.
>> When
>> > I start the first node the collection health is active but when I start
>> the
>> > second node the collection is became down and could see the locks in the
>> > logs [2].
>> >
>> > Also I have the set the solr home in zookeeper using the command [3].
>> >
>> > Did anyone came across this issue? If so please let me know how to fix
>> it.
>> >
>> >
>> > [1]
>> > http://localhost:8983/solr/admin/collections?action=
>> CREATE&name=testcollection&numShards=2&replicationFactor=
>> 2&maxShardsPerNode=2&collection.configName=testconfigs
>> >
>> >
>> > [2]  Caused by: org.apache.lucene.store.LockObtainFailedException: Index
>> > dir
>> > '/data01/solr/solr-6.5.1/server/solr/testcollection_
>> shard1_replica2/data/index/'
>> > of core 'testcollection_shard1_replica2' is already locked. The most
>> likely
>> > cause is another Solr server (or another solr core in this server) also
>> > configured to use this directory; other possible causes may be specific
>> to
>> > lockType: native
>> >         at org.apache.solr.core.SolrCore.initIndex(SolrCore.java:713)
>> >
>> >
>> > [3]  ./solr zk cp file:/data01/solr/solr-6.5.1/server/solr/solr.xml
>> > zk:/solr.xml -z 10.120.166.12:2181,10.120.166.12:2182,10.120.166.12:2183
>> >
>> >
>> >
>> > Thanks,
>> > GVK
>>
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Re: SOLR cores are getting locked

Gunalan V
Thanks Erik!

I have created separate solr home directory for each solrclound node and
looks like now it's working fine.


GVK

On Mon, Oct 16, 2017 at 9:05 AM, Erick Erickson <[hidden email]>
wrote:

> bin/solr start -help
>
> will give you a lot of info. But yes, the -s option is what you should
> use. Here's one of my batch files I used to start various cloud
> examples:
>
> bin/solr start -c -z localhost:2181 -p 898 -s example/cloud/node1/solr
>
> On Sun, Oct 15, 2017 at 11:48 PM, Gunalan V <[hidden email]> wrote:
> > Thanks Erick,
> >
> > I'm using the one VM where all SOLRCloud and Zookeeper nodes are running.
> >
> > I have two solr nodes in solrcloud. Just wanted to check do I need to
> > create different solr home directory using -s param for each SOLR nodes ?
> >
> > If yes kindly share me some documentation to configure separate node
> > directories.
> >
> >
> > GVK
> >
> >
> > On Thu, Oct 12, 2017 at 10:17 AM, Erick Erickson <
> [hidden email]>
> > wrote:
> >
> >> You might be hitting SOLR-11297, which is fixed in Solr 7.0.1. The
> >> patch should back-port cleanly to 6x versions though.
> >>
> >> Best,
> >> Erick
> >>
> >> On Thu, Oct 12, 2017 at 12:14 AM, Gunalan V <[hidden email]>
> wrote:
> >> > Hello,
> >> >
> >> > I'm using SOLR 6.5.1 and I have 2 SOLR nodes in SOLRCloud and created
> >> > collection using the below [1] and it was created successfully during
> >> > initial time but next day I tried to restart the nodes in SOLR cloud.
> >> When
> >> > I start the first node the collection health is active but when I
> start
> >> the
> >> > second node the collection is became down and could see the locks in
> the
> >> > logs [2].
> >> >
> >> > Also I have the set the solr home in zookeeper using the command [3].
> >> >
> >> > Did anyone came across this issue? If so please let me know how to fix
> >> it.
> >> >
> >> >
> >> > [1]
> >> > http://localhost:8983/solr/admin/collections?action=
> >> CREATE&name=testcollection&numShards=2&replicationFactor=
> >> 2&maxShardsPerNode=2&collection.configName=testconfigs
> >> >
> >> >
> >> > [2]  Caused by: org.apache.lucene.store.LockObtainFailedException:
> Index
> >> > dir
> >> > '/data01/solr/solr-6.5.1/server/solr/testcollection_
> >> shard1_replica2/data/index/'
> >> > of core 'testcollection_shard1_replica2' is already locked. The most
> >> likely
> >> > cause is another Solr server (or another solr core in this server)
> also
> >> > configured to use this directory; other possible causes may be
> specific
> >> to
> >> > lockType: native
> >> >         at org.apache.solr.core.SolrCore.initIndex(SolrCore.java:713)
> >> >
> >> >
> >> > [3]  ./solr zk cp file:/data01/solr/solr-6.5.1/server/solr/solr.xml
> >> > zk:/solr.xml -z 10.120.166.12:2181,10.120.166.12:2182,
> 10.120.166.12:2183
> >> >
> >> >
> >> >
> >> > Thanks,
> >> > GVK
> >>
>