Github user aledsage commented on a diff in the pull request:
https://github.com/apache/brooklyn-server/pull/799#discussion_r135778715
--- Diff:
core/src/main/java/org/apache/brooklyn/core/mgmt/ha/OsgiArchiveInstaller.java
---
@@ -379,26 +388,89 @@ private synchronized void close() {
// eg rebind code, brooklyn.libraries list -- deferred start
allows caller to
// determine whether not to start or to start all after things
are installed
Runnable startRunnable = new Runnable() {
+ private void rollbackBundle() {
+ if (updating) {
+ if (oldZipFile==null) {
+ throw new IllegalStateException("Did not have
old ZIP file to install");
+ }
+ log.debug("Rolling back bundle
"+result.getVersionedName()+" to state from "+oldZipFile);
+ try {
+ File zipFileNow =
osgiManager.managedBundlesRecord.rollbackManagedBundleFile(result, oldZipFile);
+ result.bundle.update(new
FileInputStream(Preconditions.checkNotNull(zipFileNow, "Couldn't find contents
of old version of bundle")));
+ } catch (Exception e) {
+ Exceptions.propagateIfFatal(e);
+ log.error("Error rolling back following failed
install of updated "+result.getVersionedName()+"; "
+ + "installation will likely be corrupted
and correct version should be manually installed.", e);
+ }
+
+
((BasicManagedBundle)result.getMetadata()).setPersistenceNeeded(true);
+
mgmt().getRebindManager().getChangeListener().onChanged(result.getMetadata());
+ } else {
+ log.debug("Uninstalling bundle
"+result.getVersionedName()+" (roll back of failed fresh install, no previous
version to revert to)");
+
osgiManager.uninstallUploadedBundle(result.getMetadata());
+
+
((BasicManagedBundle)result.getMetadata()).setPersistenceNeeded(true);
+
mgmt().getRebindManager().getChangeListener().onUnmanaged(result.getMetadata());
+ }
+ }
public void run() {
if (start) {
try {
log.debug("Starting bundle
"+result.getVersionedName());
result.bundle.start();
} catch (BundleException e) {
+ log.warn("Error starting bundle
"+result.getVersionedName()+", uninstalling, restoring any old bundle, then
re-throwing error: "+e);
+ rollbackBundle();
--- End diff --
If `rollbackBundle` throws an exception (e.g. if `oldZipFile==null`) then
we'll lose the stacktrace and "caused by" of the original `BundleException`. We
should probably wrap the rollback in a try-catch, doing a log.warn (including
stacktrace), then wrap the `BundleException` with a message that includes
details of the rollback problem, and propagate that `BundleException`.
Thoughts?
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