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Posted to issues@lucene.apache.org by "Lucene/Solr QA (Jira)" <ji...@apache.org> on 2019/11/13 03:14:00 UTC
[jira] [Commented] (SOLR-13872) Backup can fail to read index
files w/NoSuchFileException during merges (SOLR-11616 regression)
[ https://issues.apache.org/jira/browse/SOLR-13872?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=16972973#comment-16972973 ]
Lucene/Solr QA commented on SOLR-13872:
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| (/) *{color:green}+1 overall{color}* |
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|| Vote || Subsystem || Runtime || Comment ||
|| || || || {color:brown} Prechecks {color} ||
| {color:green}+1{color} | {color:green} test4tests {color} | {color:green} 0m 0s{color} | {color:green} The patch appears to include 3 new or modified test files. {color} |
|| || || || {color:brown} master Compile Tests {color} ||
| {color:green}+1{color} | {color:green} compile {color} | {color:green} 1m 8s{color} | {color:green} master passed {color} |
|| || || || {color:brown} Patch Compile Tests {color} ||
| {color:green}+1{color} | {color:green} compile {color} | {color:green} 1m 2s{color} | {color:green} the patch passed {color} |
| {color:green}+1{color} | {color:green} javac {color} | {color:green} 1m 2s{color} | {color:green} the patch passed {color} |
| {color:green}+1{color} | {color:green} Release audit (RAT) {color} | {color:green} 1m 5s{color} | {color:green} the patch passed {color} |
| {color:green}+1{color} | {color:green} Check forbidden APIs {color} | {color:green} 1m 2s{color} | {color:green} the patch passed {color} |
| {color:green}+1{color} | {color:green} Validate source patterns {color} | {color:green} 1m 2s{color} | {color:green} the patch passed {color} |
| {color:green}+1{color} | {color:green} Validate ref guide {color} | {color:green} 1m 2s{color} | {color:green} the patch passed {color} |
|| || || || {color:brown} Other Tests {color} ||
| {color:green}+1{color} | {color:green} unit {color} | {color:green} 46m 17s{color} | {color:green} core in the patch passed. {color} |
| {color:black}{color} | {color:black} {color} | {color:black} 51m 4s{color} | {color:black} {color} |
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|| Subsystem || Report/Notes ||
| JIRA Issue | SOLR-13872 |
| JIRA Patch URL | https://issues.apache.org/jira/secure/attachment/12985582/SOLR-13872.patch |
| Optional Tests | compile javac unit ratsources checkforbiddenapis validatesourcepatterns validaterefguide |
| uname | Linux lucene1-us-west 4.15.0-54-generic #58-Ubuntu SMP Mon Jun 24 10:55:24 UTC 2019 x86_64 x86_64 x86_64 GNU/Linux |
| Build tool | ant |
| Personality | /home/jenkins/jenkins-slave/workspace/PreCommit-SOLR-Build/sourcedir/dev-tools/test-patch/lucene-solr-yetus-personality.sh |
| git revision | master / 5df9a51cbfb |
| ant | version: Apache Ant(TM) version 1.10.5 compiled on March 28 2019 |
| Default Java | LTS |
| Test Results | https://builds.apache.org/job/PreCommit-SOLR-Build/595/testReport/ |
| modules | C: solr/core solr/solr-ref-guide U: solr |
| Console output | https://builds.apache.org/job/PreCommit-SOLR-Build/595/console |
| Powered by | Apache Yetus 0.7.0 http://yetus.apache.org |
This message was automatically generated.
> Backup can fail to read index files w/NoSuchFileException during merges (SOLR-11616 regression)
> ------------------------------------------------------------------------------------------------
>
> Key: SOLR-13872
> URL: https://issues.apache.org/jira/browse/SOLR-13872
> Project: Solr
> Issue Type: Bug
> Security Level: Public(Default Security Level. Issues are Public)
> Reporter: Chris M. Hostetter
> Assignee: Chris M. Hostetter
> Priority: Major
> Attachments: SOLR-13872.patch, SOLR-13872.patch, SOLR-13872.patch, SOLR-13872.patch, index_churn.pl
>
>
> SOLR-11616 purports to fix a bug in Solr's backup functionality that causes 'NoSuchFileException' errors when attempting to backup an index while it is undergoing indexing (and segment merging)
> Although SOLR-11616 is marked with "Fix Version: 7.2" it's pretty easy to demonstrate that this bug still exists on master, branch_8x, and even in 7.2 - so it seems less like the current problem is a "regression" and more that the original fix didn't work.
> ----
> The crux of the problem seems to be concurrency bugs in if/how a commit is "reserved" before attempting to copy the files in that commit to the backup location.
> A possible work around discussed in more depth in the comments below is to update {{solrconfig.xml}} to explicitly configure the {{SolrDeletionPolicy}} with either the {{maxCommitsToKeep}} or {{maxCommitAge}} options to ensure the commits are kept around long enough for the backup to be created.
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