Log upgrading from to – How To Solve Related Issues

Log upgrading from to – How To Solve Related Issues

Updated: Feb-20

Elasticsearch Version: 1.7-8.0

Background

To resolve issues causing many log errors you can try our Elasticsearch Check-Up it analyses ES configuration to provide actionable recommendations (no installation required) 


To troubleshoot log “upgrading from to” it’s important to understand a few problems related to Elasticsearch concepts Index, Memory. See bellow important tips and explanations on these concepts

Log Context

Log”{} upgrading [{}] from [{}] to [{}]” classname is MultiDataPathUpgrader.java
We extracted the following from Elasticsearch source code for those seeking an in-depth context :

         List movedFiles = new ArrayList();
        for (Path path : paths) {
            if (path.equals(targetPath.getDataPath()) == false) {
                final Path sourceDir = path.resolve(folderName);
                if (Files.exists(sourceDir)) {
                    logger.info("{} upgrading [{}] from [{}] to [{}]"; shard; folderName; sourceDir; targetDir);
                    try (DirectoryStream stream = Files.newDirectoryStream(sourceDir)) {
                        Files.createDirectories(targetDir);
                        for (Path file : stream) {
                            if (IndexWriter.WRITE_LOCK_NAME.equals(file.getFileName().toString()) || Files.isDirectory(file)) {
                                continue; // skip write.lock




Related issues to this log

We have gathered selected Q&A from the community and issues from Github, that can help fix related issues please review the following for further information :

1 Solved Error Request To Elasticsear  

Help After Upgrading To Elasticsear  

 

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