jackrabbit-oak-issues mailing list archives

Site index · List index
Message view « Date » · « Thread »
Top « Date » · « Thread »
From "Arek Kita (JIRA)" <j...@apache.org>
Subject [jira] [Created] (OAK-6611) [upgrade][oak-blob-cloud] Many S3DataStore errors during migration with oak-upgrade
Date Fri, 01 Sep 2017 12:15:02 GMT
Arek Kita created OAK-6611:
------------------------------

             Summary: [upgrade][oak-blob-cloud] Many S3DataStore errors during migration with
oak-upgrade
                 Key: OAK-6611
                 URL: https://issues.apache.org/jira/browse/OAK-6611
             Project: Jackrabbit Oak
          Issue Type: Bug
          Components: blob-cloud, upgrade
    Affects Versions: 1.8, 1.7.7
            Reporter: Arek Kita
            Assignee: Amit Jain
            Priority: Critical


[~tomek.rekawek], [~amitjain] Due to async nature of S3 datastore format/upload process the
migration ends up way quicker than S3 datastore is being migrated. This leads to a huge number
of exceptions shown due to *non synchronised* nature of *oak-upgrade* migration process vs
async S3 datastore background processes. 

I see a few possible solutions for that:

* disable migration/uploading of S3 cache for the time of migration (bad idea IMHO)
* wait for it (it might be desired or a bad idea as it might take longer than migration for
a few cases)
* pause it when migration is completed in a clean way (so some binaries aren't uploaded and
moved to a new datastore format) -- not sure if such mixed state is ok at all

WDYT? 

Please also note that this happens only when {{\-\-src-s3config \-\-src-s3datastore}} options
are specified during migration which in many cases is true (this would be the same for the
destination DataStore options). 
Referencing a source datastore is needed (even if {{\-\-copy-binaries}} is not included) in
example to copy checkpoints properly.

The example exception is like the below:
{code}
01.09.2017 11:39:41.088 ERROR  o.a.j.o.p.b.UploadStagingCache: Error adding file to backend
java.lang.IllegalStateException: Connection pool shut down
	at org.apache.http.util.Asserts.check(Asserts.java:34)
	at org.apache.http.pool.AbstractConnPool.lease(AbstractConnPool.java:184)
	at org.apache.http.impl.conn.PoolingHttpClientConnectionManager.requestConnection(PoolingHttpClientConnectionManager.java:251)
	at sun.reflect.GeneratedMethodAccessor8.invoke(Unknown Source)
	at sun.reflect.DelegatingMethodAccessorImpl.invoke(DelegatingMethodAccessorImpl.java:43)
	at java.lang.reflect.Method.invoke(Method.java:498)
	at com.amazonaws.http.conn.ClientConnectionManagerFactory$Handler.invoke(ClientConnectionManagerFactory.java:76)
	at com.amazonaws.http.conn.$Proxy3.requestConnection(Unknown Source)
	at org.apache.http.impl.execchain.MainClientExec.execute(MainClientExec.java:175)
	at org.apache.http.impl.execchain.ProtocolExec.execute(ProtocolExec.java:184)
	at org.apache.http.impl.client.InternalHttpClient.doExecute(InternalHttpClient.java:184)
	at org.apache.http.impl.client.CloseableHttpClient.execute(CloseableHttpClient.java:82)
	at org.apache.http.impl.client.CloseableHttpClient.execute(CloseableHttpClient.java:55)
	at com.amazonaws.http.apache.client.impl.SdkHttpClient.execute(SdkHttpClient.java:72)
	at com.amazonaws.http.AmazonHttpClient.executeOneRequest(AmazonHttpClient.java:880)
	at com.amazonaws.http.AmazonHttpClient.executeHelper(AmazonHttpClient.java:723)
	at com.amazonaws.http.AmazonHttpClient.doExecute(AmazonHttpClient.java:475)
	at com.amazonaws.http.AmazonHttpClient.executeWithTimer(AmazonHttpClient.java:437)
	at com.amazonaws.http.AmazonHttpClient.execute(AmazonHttpClient.java:386)
	at com.amazonaws.services.s3.AmazonS3Client.invoke(AmazonS3Client.java:3996)
	at com.amazonaws.services.s3.AmazonS3Client.getObjectMetadata(AmazonS3Client.java:1161)
	at com.amazonaws.services.s3.AmazonS3Client.getObjectMetadata(AmazonS3Client.java:1136)
	at org.apache.jackrabbit.oak.blob.cloud.s3.S3Backend.write(S3Backend.java:201)
	at org.apache.jackrabbit.oak.plugins.blob.AbstractSharedCachingDataStore$2.write(AbstractSharedCachingDataStore.java:170)
	at org.apache.jackrabbit.oak.plugins.blob.UploadStagingCache$4.call(UploadStagingCache.java:341)
	at org.apache.jackrabbit.oak.plugins.blob.UploadStagingCache$4.call(UploadStagingCache.java:336)
	at com.google.common.util.concurrent.TrustedListenableFutureTask$TrustedFutureInterruptibleTask.runInterruptibly(TrustedListenableFutureTask.java:108)
	at com.google.common.util.concurrent.InterruptibleTask.run(InterruptibleTask.java:41)
	at com.google.common.util.concurrent.TrustedListenableFutureTask.run(TrustedListenableFutureTask.java:77)
	at java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1142)
	at java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:617)
	at java.lang.Thread.run(Thread.java:745)
{code}



--
This message was sent by Atlassian JIRA
(v6.4.14#64029)

Mime
View raw message