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https://issues.apache.org/jira/browse/SOLR-4194?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=13532749#comment-13532749
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Shawn Heisey commented on SOLR-4194:
------------------------------------
Solr log generated by log4j corresponding to the jetty log. I have realized
that I should not have shards.tolerant=true for this, so I have since removed
it from the /lbcheck handler.
{noformat}
INFO - 2012-12-14 15:16:01.547; org.apache.solr.core.SolrCore; [s5live]
webapp=/solr path=/lbcheck
params={shards.qt=/lbcheck&distrib=false&wt=javabin&shards.tolerant=true&rows=0&version=2&qt.path=/lbcheck&fl=tag_id,score&df=catchall&shard.url=bigindy5.REDACTED.com:8982/solr/s5live&NOW=1355523361544&start=0&q=*:*&shards.info=true&isShard=true&qt=/lbcheck&fsv=true}
hits=13111698 status=0 QTime=0
INFO - 2012-12-14 15:16:01.547; org.apache.solr.core.SolrCore; [s4live]
webapp=/solr path=/lbcheck
params={shards.qt=/lbcheck&distrib=false&wt=javabin&shards.tolerant=true&rows=0&version=2&qt.path=/lbcheck&fl=tag_id,score&df=catchall&shard.url=bigindy5.REDACTED.com:8982/solr/s4live&NOW=1355523361544&start=0&q=*:*&shards.info=true&isShard=true&qt=/lbcheck&fsv=true}
hits=13103219 status=0 QTime=0
INFO - 2012-12-14 15:16:01.548; org.apache.solr.core.SolrCore; [s2live]
webapp=/solr path=/lbcheck
params={shards.qt=/lbcheck&distrib=false&wt=javabin&shards.tolerant=true&rows=0&version=2&qt.path=/lbcheck&fl=tag_id,score&df=catchall&shard.url=bigindy5.REDACTED.com:8982/solr/s2live&NOW=1355523361544&start=0&q=*:*&shards.info=true&isShard=true&qt=/lbcheck&fsv=true}
hits=13102554 status=0 QTime=0
INFO - 2012-12-14 15:16:01.549; org.apache.solr.core.SolrCore; [s0live]
webapp=/solr path=/lbcheck
params={shards.qt=/lbcheck&distrib=false&wt=javabin&shards.tolerant=true&rows=0&version=2&qt.path=/lbcheck&fl=tag_id,score&df=catchall&shard.url=bigindy5.REDACTED.com:8982/solr/s0live&NOW=1355523361544&start=0&q=*:*&shards.info=true&isShard=true&qt=/lbcheck&fsv=true}
hits=13105096 status=0 QTime=1
INFO - 2012-12-14 15:16:01.549; org.apache.solr.core.SolrCore; [s1live]
webapp=/solr path=/lbcheck
params={shards.qt=/lbcheck&distrib=false&wt=javabin&shards.tolerant=true&rows=0&version=2&qt.path=/lbcheck&fl=tag_id,score&df=catchall&shard.url=bigindy5.REDACTED.com:8982/solr/s1live&NOW=1355523361544&start=0&q=*:*&shards.info=true&isShard=true&qt=/lbcheck&fsv=true}
hits=13103459 status=0 QTime=0
INFO - 2012-12-14 15:16:01.549; org.apache.solr.core.SolrCore; [inclive]
webapp=/solr path=/lbcheck
params={shards.qt=/lbcheck&distrib=false&wt=javabin&shards.tolerant=true&rows=0&version=2&qt.path=/lbcheck&fl=tag_id,score&df=catchall&shard.url=bigindy5.REDACTED.com:8982/solr/inclive&NOW=1355523361544&start=0&q=*:*&shards.info=true&isShard=true&qt=/lbcheck&fsv=true}
hits=333902 status=0 QTime=0
INFO - 2012-12-14 15:16:01.552; org.apache.solr.core.SolrCore; [s3live]
webapp=/solr path=/lbcheck
params={shards.qt=/lbcheck&distrib=false&wt=javabin&shards.tolerant=true&rows=0&version=2&qt.path=/lbcheck&df=catchall&fl=tag_id,score&shard.url=bigindy5.REDACTED.com:8982/solr/s3live&NOW=1355523361544&start=0&q=*:*&shards.info=true&isShard=true&qt=/lbcheck&fsv=true}
hits=13101377 status=0 QTime=0
INFO - 2012-12-14 15:16:01.553; org.apache.solr.core.SolrCore; [ncmain]
webapp=/solr path=/lbcheck
params={qt.path=/lbcheck&wt=javabin&q=*:*&rows=0&version=2} hits=78961305
status=0 QTime=9
INFO - 2012-12-14 15:16:01.557; org.apache.solr.core.SolrCore; [s2live]
webapp=/solr path=/admin/ping
params={shards.qt=/lbcheck&distrib=false&wt=javabin&shards.tolerant=true&rows=1&version=2&qt.path=/admin/ping&fl=tag_id,score&df=catchall&shard.url=bigindy5.REDACTED.com:8982/solr/s2live&NOW=1355523361555&start=0&q=*:*&shards.info=true&qt=/lbcheck&isShard=true&fsv=true}
status=503 QTime=0
INFO - 2012-12-14 15:16:01.557; org.apache.solr.core.SolrCore; [inclive]
webapp=/solr path=/admin/ping
params={shards.qt=/lbcheck&distrib=false&wt=javabin&shards.tolerant=true&rows=1&version=2&qt.path=/admin/ping&df=catchall&fl=tag_id,score&shard.url=bigindy5.REDACTED.com:8982/solr/inclive&NOW=1355523361555&start=0&q=*:*&shards.info=true&qt=/lbcheck&isShard=true&fsv=true}
status=503 QTime=0
INFO - 2012-12-14 15:16:01.558; org.apache.solr.core.SolrCore; [s0live]
webapp=/solr path=/admin/ping
params={shards.qt=/lbcheck&distrib=false&wt=javabin&shards.tolerant=true&rows=1&version=2&qt.path=/admin/ping&df=catchall&fl=tag_id,score&shard.url=bigindy5.REDACTED.com:8982/solr/s0live&NOW=1355523361555&start=0&q=*:*&shards.info=true&qt=/lbcheck&isShard=true&fsv=true}
status=503 QTime=0
INFO - 2012-12-14 15:16:01.558; org.apache.solr.core.SolrCore; [s3live]
webapp=/solr path=/admin/ping
params={shards.qt=/lbcheck&distrib=false&wt=javabin&shards.tolerant=true&rows=1&version=2&qt.path=/admin/ping&df=catchall&fl=tag_id,score&shard.url=bigindy5.REDACTED.com:8982/solr/s3live&NOW=1355523361555&start=0&q=*:*&shards.info=true&qt=/lbcheck&isShard=true&fsv=true}
status=503 QTime=0
INFO - 2012-12-14 15:16:01.558; org.apache.solr.core.SolrCore; [s4live]
webapp=/solr path=/admin/ping
params={shards.qt=/lbcheck&distrib=false&wt=javabin&shards.tolerant=true&rows=1&version=2&qt.path=/admin/ping&df=catchall&fl=tag_id,score&shard.url=bigindy5.REDACTED.com:8982/solr/s4live&NOW=1355523361555&start=0&q=*:*&shards.info=true&qt=/lbcheck&isShard=true&fsv=true}
status=503 QTime=0
INFO - 2012-12-14 15:16:01.559; org.apache.solr.core.SolrCore; [s5live]
webapp=/solr path=/admin/ping
params={shards.qt=/lbcheck&distrib=false&wt=javabin&shards.tolerant=true&rows=1&version=2&qt.path=/admin/ping&df=catchall&fl=tag_id,score&shard.url=bigindy5.REDACTED.com:8982/solr/s5live&NOW=1355523361555&start=0&q=*:*&shards.info=true&qt=/lbcheck&isShard=true&fsv=true}
status=503 QTime=0
INFO - 2012-12-14 15:16:01.559; org.apache.solr.core.SolrCore; [s1live]
webapp=/solr path=/admin/ping
params={shards.qt=/lbcheck&distrib=false&wt=javabin&shards.tolerant=true&rows=1&version=2&qt.path=/admin/ping&df=catchall&fl=tag_id,score&shard.url=bigindy5.REDACTED.com:8982/solr/s1live&NOW=1355523361555&start=0&q=*:*&shards.info=true&qt=/lbcheck&isShard=true&fsv=true}
status=503 QTime=0
INFO - 2012-12-14 15:16:01.561; org.apache.solr.core.SolrCore; [ncmain]
webapp=/solr path=/admin/ping params={qt.path=/admin/ping&wt=javabin&version=2}
hits=0 status=0 QTime=6
INFO - 2012-12-14 15:16:01.561; org.apache.solr.core.SolrCore; [ncmain]
webapp=/solr path=/admin/ping params={qt.path=/admin/ping&wt=javabin&version=2}
status=0 QTime=6
{noformat}
> PingRequestHandler - shards parameter inherited from search handler definition
> ------------------------------------------------------------------------------
>
> Key: SOLR-4194
> URL: https://issues.apache.org/jira/browse/SOLR-4194
> Project: Solr
> Issue Type: Bug
> Affects Versions: 4.1
> Environment: solr-impl 4.1-SNAPSHOT 1421496 - ncindex - 2012-12-13
> 14:56:25
> Reporter: Shawn Heisey
> Fix For: 4.1, 5.0
>
>
> Included in all my cores is a PingRequestHandler named /admin/ping, which I
> use to enable/disable the server from the perspective of a load balancer
> running haproxy. The handler includes a qt parameter set to /lbcheck.
> I have a special core defined (I call it a broker) that includes the shards
> parameter in most of its search handler definitions. This includes /select,
> /lbcheck, and others.
> When the /admin/ping handler is called, the query is sent to the /lbcheck
> parameter as expected, which gets distributed because it includes shards. If
> one of those shards happens to be down, the handler will give an error
> response to the load balancer.
> The problem is that the PingRequestHandler seems to inherit the shards
> parameter from the search handler it is using, which causes the /admin/ping
> request itself to be distributed, which is not what I want. The individual
> shards are not used by the load balancer, so they always remain disabled.
> This works perfectly in 3.5.0. The official 4.0.0 release has not been
> tested.
> Config and log data will follow in the comments.
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