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https://issues.apache.org/jira/browse/SOLR-11278?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=16150879#comment-16150879
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Amrit Sarkar commented on SOLR-11278:
-------------------------------------
Another example, why two simultaneous threads are getting created to invoke
BOOTSTRAP?
{code}
[beaster] 2> 38858 INFO
(updateExecutor-39-thread-1-processing-n:127.0.0.1:42155_solr
x:cdcr-target_shard1_replica_n1 s:shard1 c:cdcr-target r:core_node2)
[n:127.0.0.1:42155_solr c:cdcr-target s:shard1 r:core_node2
x:cdcr-target_shard1_replica_n1] o.a.s.h.CdcrRequestHandler what' the lock this
time :: true :: thread :: org.apache.solr.handler.CdcrRequestHandler@64d1ccf3
[beaster] 2> 38858 INFO (qtp1415866434-168) [n:127.0.0.1:42155_solr
c:cdcr-target s:shard1 r:core_node2 x:cdcr-target_shard1_replica_n1]
o.a.s.c.S.Request [cdcr-target_shard1_replica_n1] webapp=/solr path=/cdcr
params={qt=/cdcr&action=BOOTSTRAP_STATUS&wt=javabin&version=2} status=0 QTime=0
[beaster] 2> 38859 WARN
(cdcr-bootstrap-status-66-thread-1-processing-n:127.0.0.1:36193_solr
x:cdcr-source_shard1_replica_n1 s:shard1 c:cdcr-source r:core_node2)
[n:127.0.0.1:36193_solr c:cdcr-source s:shard1 r:core_node2
x:cdcr-source_shard1_replica_n1] o.a.s.h.CdcrReplicatorManager Bootstrap
process was not found on target collection: cdcr-target shard: shard1, leader:
http://127.0.0.1:42155/solr/cdcr-target_shard1_replica_n1/
[beaster] 2> 38860 INFO
(cdcr-bootstrap-status-66-thread-1-processing-n:127.0.0.1:36193_solr
x:cdcr-source_shard1_replica_n1 s:shard1 c:cdcr-source r:core_node2)
[n:127.0.0.1:36193_solr c:cdcr-source s:shard1 r:core_node2
x:cdcr-source_shard1_replica_n1] o.a.s.h.CdcrReplicatorManager Attempting to
bootstrap target collection: cdcr-target shard: shard1 leader:
http://127.0.0.1:42155/solr/cdcr-target_shard1_replica_n1/
[beaster] 2> 38860 INFO (qtp1415866434-173) [n:127.0.0.1:42155_solr
c:cdcr-target s:shard1 r:core_node2 x:cdcr-target_shard1_replica_n1]
o.a.s.h.CdcrRequestHandler Boostrap is issued now. Request ::
{action=BOOTSTRAP&qt=/cdcr&masterUrl=http://127.0.0.1:36193/solr/cdcr-source_shard1_replica_n1/&wt=javabin&version=2}
: collection : cdcr-target
[beaster] 2> 38865 INFO
(recoveryExecutor-40-thread-1-processing-n:127.0.0.1:42155_solr
x:cdcr-target_shard1_replica_n1 s:shard1 c:cdcr-target r:core_node2)
[n:127.0.0.1:42155_solr c:cdcr-target s:shard1 r:core_node2
x:cdcr-target_shard1_replica_n1] o.a.s.u.UpdateLog Starting to buffer updates.
FSUpdateLog{state=ACTIVE, tlog=null}
[beaster] 2> 38865 INFO (qtp1415866434-173) [n:127.0.0.1:42155_solr
c:cdcr-target s:shard1 r:core_node2 x:cdcr-target_shard1_replica_n1]
o.a.s.c.S.Request [cdcr-target_shard1_replica_n1] webapp=/solr path=/cdcr
params={qt=/cdcr&masterUrl=http://127.0.0.1:36193/solr/cdcr-source_shard1_replica_n1/&action=BOOTSTRAP&wt=javabin&version=2}
status=0 QTime=4
[beaster] 2> 38865 INFO
(updateExecutor-39-thread-2-processing-n:127.0.0.1:42155_solr
x:cdcr-target_shard1_replica_n1 s:shard1 c:cdcr-target r:core_node2)
[n:127.0.0.1:42155_solr c:cdcr-target s:shard1 r:core_node2
x:cdcr-target_shard1_replica_n1] o.a.s.h.CdcrRequestHandler what' the lock this
time :: false :: thread :: org.apache.solr.handler.CdcrRequestHandler@64d1ccf3
{code}
the code is like this:
{code}
private void handleBootstrapAction(SolrQueryRequest req, SolrQueryResponse rsp)
throws IOException, SolrServerException {
...................
...................
Runnable runnable = () -> {
Lock recoveryLock = req.getCore().getSolrCoreState().getRecoveryLock();
boolean locked = recoveryLock.tryLock();
log.info("what' the lock this time :: " + locked + " :: thread :: " +
this);
SolrCoreState coreState = core.getSolrCoreState();
{code}
> CdcrBootstrapTest failing in branch_6_6
> ---------------------------------------
>
> Key: SOLR-11278
> URL: https://issues.apache.org/jira/browse/SOLR-11278
> Project: Solr
> Issue Type: Bug
> Security Level: Public(Default Security Level. Issues are Public)
> Components: CDCR
> Reporter: Amrit Sarkar
> Assignee: Varun Thacker
> Attachments: SOLR-11278-cancel-bootstrap-on-stop.patch,
> SOLR-11278.patch, test_results
>
>
> I ran beast for 10 rounds:
> ant beast -Dtestcase=CdcrBootstrapTest -Dtests.multiplier=2 -Dtests.slow=true
> -Dtests.locale=vi -Dtests.timezone=Asia/Yekaterinburg -Dtests.asserts=true
> -Dtests.file.encoding=US-ASCII -Dbeast.iters=10
> and seeing following failure:
> {code}
> [beaster] [01:37:16.282] FAILURE 153s |
> CdcrBootstrapTest.testBootstrapWithSourceCluster <<<
> [beaster] > Throwable #1: java.lang.AssertionError: Document mismatch on
> target after sync expected:<2000> but was:<1000>
> {code}
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