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https://issues.apache.org/jira/browse/IGNITE-8780?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=16519555#comment-16519555
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Alexey Stelmak commented on IGNITE-8780:
----------------------------------------
PR: https://github.com/apache/ignite/pull/4240
> File I/O operations must be retried if buffer hasn't read/written completely
> ----------------------------------------------------------------------------
>
> Key: IGNITE-8780
> URL: https://issues.apache.org/jira/browse/IGNITE-8780
> Project: Ignite
> Issue Type: Bug
> Components: cache
> Affects Versions: 2.5
> Reporter: Pavel Kovalenko
> Assignee: Alexey Stelmak
> Priority: Critical
> Fix For: 2.6
>
>
> Currently we don't actually ensure that we write or read some buffer
> completely:
> org.apache.ignite.internal.processors.cache.persistence.GridCacheDatabaseSharedManager#writeCheckpointEntry
> org.apache.ignite.internal.processors.cache.persistence.GridCacheDatabaseSharedManager#nodeStart
> As result we may not write to the disk actual data and after node restart we
> can get BufferUnderflowException, like this:
> {noformat}
> java.nio.BufferUnderflowException
> at java.nio.Buffer.nextGetIndex(Buffer.java:506)
> at java.nio.HeapByteBuffer.getLong(HeapByteBuffer.java:412)
> at
> org.apache.ignite.internal.processors.cache.persistence.GridCacheDatabaseSharedManager.readPointer(GridCacheDatabaseSharedManager.java:1915)
> at
> org.apache.ignite.internal.processors.cache.persistence.GridCacheDatabaseSharedManager.readCheckpointStatus(GridCacheDatabaseSharedManager.java:1892)
> at
> org.apache.ignite.internal.processors.cache.persistence.GridCacheDatabaseSharedManager.readMetastore(GridCacheDatabaseSharedManager.java:565)
> at
> org.apache.ignite.internal.processors.cache.persistence.GridCacheDatabaseSharedManager.start0(GridCacheDatabaseSharedManager.java:525)
> at
> org.apache.ignite.internal.processors.cache.GridCacheSharedManagerAdapter.start(GridCacheSharedManagerAdapter.java:61)
> at
> org.apache.ignite.internal.processors.cache.GridCacheProcessor.start(GridCacheProcessor.java:700)
> at
> org.apache.ignite.internal.IgniteKernal.startProcessor(IgniteKernal.java:1738)
> at org.apache.ignite.internal.IgniteKernal.start(IgniteKernal.java:985)
> at
> org.apache.ignite.internal.IgnitionEx$IgniteNamedInstance.start0(IgnitionEx.java:2014)
> at
> org.apache.ignite.internal.IgnitionEx$IgniteNamedInstance.start(IgnitionEx.java:1723)
> at org.apache.ignite.internal.IgnitionEx.start0(IgnitionEx.java:1151)
> at org.apache.ignite.internal.IgnitionEx.start(IgnitionEx.java:671)
> at org.apache.ignite.internal.IgnitionEx.start(IgnitionEx.java:596)
> at org.apache.ignite.Ignition.start(Ignition.java:327)
> at org.apache.ignite.ci.db.TcHelperDb.start(TcHelperDb.java:67)
> at
> org.apache.ignite.ci.web.CtxListener.contextInitialized(CtxListener.java:37)
> at
> org.eclipse.jetty.server.handler.ContextHandler.callContextInitialized(ContextHandler.java:890)
> at
> org.eclipse.jetty.servlet.ServletContextHandler.callContextInitialized(ServletContextHandler.java:532)
> at
> org.eclipse.jetty.server.handler.ContextHandler.startContext(ContextHandler.java:853)
> at
> org.eclipse.jetty.servlet.ServletContextHandler.startContext(ServletContextHandler.java:344)
> at
> org.eclipse.jetty.webapp.WebAppContext.startWebapp(WebAppContext.java:1501)
> at
> org.eclipse.jetty.webapp.WebAppContext.startContext(WebAppContext.java:1463)
> at
> org.eclipse.jetty.server.handler.ContextHandler.doStart(ContextHandler.java:785)
> at
> org.eclipse.jetty.servlet.ServletContextHandler.doStart(ServletContextHandler.java:261)
> at org.eclipse.jetty.webapp.WebAppContext.doStart(WebAppContext.java:545)
> at
> org.eclipse.jetty.util.component.AbstractLifeCycle.start(AbstractLifeCycle.java:68)
> at
> org.eclipse.jetty.util.component.ContainerLifeCycle.start(ContainerLifeCycle.java:131)
> at org.eclipse.jetty.server.Server.start(Server.java:452)
> at
> org.eclipse.jetty.util.component.ContainerLifeCycle.doStart(ContainerLifeCycle.java:105)
> at
> org.eclipse.jetty.server.handler.AbstractHandler.doStart(AbstractHandler.java:113)
> at org.eclipse.jetty.server.Server.doStart(Server.java:419)
> at
> org.eclipse.jetty.util.component.AbstractLifeCycle.start(AbstractLifeCycle.java:68)
> at org.apache.ignite.ci.web.Launcher.runServer(Launcher.java:68)
> at
> org.apache.ignite.ci.TcHelperJettyLauncher.main(TcHelperJettyLauncher.java:10)
> {noformat}
> and node become into unrecoverable state.
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